Updated name, package and color

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

.github/FUNDING.yml

@@ -0,0 +1,4 @@
+
+github: bitfireAT
+liberapay: DAVx5
+custom: 'https://www.davx5.com/donate'

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: DAVx⁵ Community Support
+    url: https://github.com/bitfireAT/davx5-ose/discussions
+    about: Ask and answer questions (including feature requests and bug reports) here.

.github/ISSUE_TEMPLATE/qualified-bug.yml

@@ -0,0 +1,43 @@
+name: Qualified Bug Report
+description: "[Developers only] For qualified bug reports. (Use Discussions if unsure.)"
+labels: ["bug"]
+body:
+  - type: checkboxes
+    attributes:
+      label: Problem scope
+      description: Use Discussions if you're unsure which component (DAVx⁵, calendar app, server, …) causes your problem.
+      options:
+        - label: I'm sure that this is a DAVx⁵ problem.
+          required: true
+  - type: checkboxes
+    attributes:
+      label: App version
+      options:
+        - label: I'm using the latest available DAVx⁵ version.
+          required: true
+  - type: input
+    attributes:
+      label: Android version and device/firmware type
+      placeholder: "Android 13 (Samsung A32)"
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      description: Provide detailed steps to reproduce the problem.
+      placeholder: |
+        1. Create DAVx⁵ account with Some Server (Version).
+        2. Sync Some Calendar.
+        3. SomeException appears.
+  - type: textarea
+    attributes:
+      label: Actual result
+      description: Describe what you DAVx⁵ currently does (and what is not expected).
+      placeholder: "Some Property in ICS file causes the whole synchronization to stop."
+  - type: textarea
+    attributes:
+      label: Expected result
+      description: Describe what you would expect DAVx⁵ to avoid/solve the problem.
+      placeholder: "Some Property in ICS file should be ignored even if faulty and sync should continue instead of showing an error."
+  - type: textarea
+    attributes:
+      label: Further info
+      description: Debug info, links to further information, …

.github/ISSUE_TEMPLATE/qualified-feature.yml

@@ -0,0 +1,19 @@
+name: Qualified Feature Request
+description: "[Developers only] For qualified feature requests. (Use Discussions if unsure.)"
+labels: ["enhancement"]
+body:
+  - type: checkboxes
+    attributes:
+      label: Scope
+      description: Use this form only for features that have been discussed in Discussions or if you're a DAVx5 developer.
+      options:
+        - label: I'm sure that this feature request belongs here and not into Discussions.
+          required: true
+  - type: textarea
+    attributes:
+      label: Description
+      description: Describe the requested feature and why it is desired.
+  - type: textarea
+    attributes:
+      label: Further info
+      description: How this could be implemented, links to further information, …

.github/pull_request_template.md

@@ -0,0 +1,38 @@
+
+Please delete this paragraph and other repeating text (like the examples) after reading and before submitting the PR.
+
+The PR should be in _Draft_ state during development. As soon as it's finished, it should be marked as _Ready for review_ and a reviewer should be chosen.
+
+See also: [Writing A Great Pull Request Description](https://www.pullrequest.com/blog/writing-a-great-pull-request-description/)
+
+
+### Purpose
+
+What this PR is intended to do and why this is desirable.
+
+Example: 
+
+> Adds support for AAA in BBB, as requested by several people in issue #XX.
+
+
+### Short description
+
+A short description of the chosen approach to achieve the purpose.
+
+Example:
+
+> - Added authentication option _Some authentication_ to _some module_.
+> - Added support for _Some authentication_ to _some content provider_.
+> - Added UI support for _Some authentication_ in account settings.
+
+Related information (links to Android docs and other resources that help to understand/review
+the changes) can also be put here.
+
+
+### Checklist
+
+- [ ] The PR has a proper title, description and label.
+- [ ] I have [self-reviewed the PR](https://patrickdinh.medium.com/review-your-own-pull-requests-5634cad10b7a).
+- [ ] I have added documentation to complex functions and functions that can be used by other modules.
+- [ ] I have added reasonable tests or consciously decided to not add tests.
+

.github/release.yml

@@ -0,0 +1,20 @@
+changelog:
+  exclude:
+    labels:
+      - ignore-for-release
+  categories:
+    - title: New features
+      labels:
+        - enhancement
+    - title: Bug fixes
+      labels:
+        - bug
+    - title: Refactoring
+      labels:
+        - refactoring
+    - title: Dependencies
+      labels:
+        - dependencies
+    - title: Other changes
+      labels:
+        - "*"

.github/workflows/codeql.yml

@@ -0,0 +1,58 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ main-ose ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main-ose ]
+  schedule:
+    - cron: '22 10 * * 1'
+concurrency:
+  group: codeql-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'java' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - uses: actions/setup-java@v4
+      with:
+        distribution: temurin
+        java-version: 21
+    - uses: gradle/actions/setup-gradle@v3
+      with:
+        cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+        cache-read-only: true         # gradle user home cache is generated by test jobs
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    #- name: Autobuild
+    #  uses: github/codeql-action/autobuild@v2
+
+    - name: Build
+      run: ./gradlew --build-cache --configuration-cache --configuration-cache-problems=warn --no-daemon app:assembleOseDebug
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/dependent-issues.yml

@@ -0,0 +1,55 @@
+name: Dependent Issues
+
+on:
+  issues:
+    types:
+      - opened
+      - edited
+      - closed
+      - reopened
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - closed
+      - reopened
+      # Makes sure we always add status check for PRs. Useful only if
+      # this action is required to pass before merging. Otherwise, it
+      # can be removed.
+      - synchronize
+
+  # Schedule a daily check. Useful if you reference cross-repository
+  # issues or pull requests. Otherwise, it can be removed.
+  schedule:
+    - cron: '19 9 * * *'
+
+permissions: write-all
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: z0al/dependent-issues@v1
+        env:
+          # (Required) The token to use to make API calls to GitHub.
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # (Optional) The token to use to make API calls to GitHub for remote repos.
+          GITHUB_READ_TOKEN: ${{ secrets.DEPENDENT_ISSUES_READ_TOKEN }}
+
+        with:
+          # (Optional) The label to use to mark dependent issues
+          # label: dependent
+
+          # (Optional) Enable checking for dependencies in issues.
+          # Enable by setting the value to "on". Default "off"
+          check_issues: on
+
+          # (Optional) A comma-separated list of keywords. Default
+          # "depends on, blocked by"
+          keywords: depends on, blocked by
+
+          # (Optional) A custom comment body. It supports `{{ dependencies }}` token.
+          comment: >
+            This PR/issue depends on:
+
+            {{ dependencies }}

.github/workflows/release.yml

@@ -0,0 +1,48 @@
+name: Create release
+on:
+  push:
+    tags:
+      - v*
+
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  prerelease: ${{ contains(github.ref_name, '-alpha') || contains(github.ref_name, '-beta') || contains(github.ref_name, '-rc') }}
+
+jobs:
+  build:
+    name: Create release
+    permissions:
+      contents: write
+      discussions: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v3
+
+      - name: Prepare keystore
+        run: echo ${{ secrets.android_keystore_base64 }} | base64 -d >$GITHUB_WORKSPACE/keystore.jks
+
+      - name: Build signed package
+        # Make sure that caches are disabled to generate reproducible release builds
+        run: ./gradlew --no-build-cache --no-configuration-cache --no-daemon app:assembleRelease
+        env:
+          ANDROID_KEYSTORE: ${{ github.workspace }}/keystore.jks
+          ANDROID_KEYSTORE_PASSWORD: ${{ secrets.android_keystore_password }}
+          ANDROID_KEY_ALIAS: ${{ secrets.android_key_alias }}
+          ANDROID_KEY_PASSWORD: ${{ secrets.android_key_password }}
+
+      - name: Create Github release
+        uses: softprops/action-gh-release@v2
+        with:
+          prerelease: ${{ env.prerelease }}
+          files: app/build/outputs/apk/ose/release/*.apk
+          fail_on_unmatched_files: true
+          generate_release_notes: true
+          discussion_category_name: Announcements

.github/workflows/test-dev.yml

@@ -0,0 +1,81 @@
+name: Development tests
+on:
+  push:
+    branches:
+      - '*'
+
+concurrency:
+  group: test-dev-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  compile:
+    name: Compile for build cache
+    if: ${{ github.ref == 'refs/heads/main-ose' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+
+      # See https://community.gradle.org/github-actions/docs/setup-gradle/ for more information
+      - uses: gradle/actions/setup-gradle@v3            # creates build cache when on main branch
+        with:
+          cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+          dependency-graph: generate-and-submit         # submit Github Dependency Graph info
+
+      - run: ./gradlew --build-cache --configuration-cache --configuration-cache-problems=warn app:compileOseDebugSource
+
+  test:
+    needs: compile
+    if: ${{ always() }}     # even if compile didn't run (because not on main branch)
+    name: Lint and unit tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v3
+        with:
+          cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+          cache-read-only: true
+
+      - name: Run lint
+        run: ./gradlew --build-cache --configuration-cache --configuration-cache-problems=warn app:lintOseDebug
+      - name: Run unit tests
+        run: ./gradlew --build-cache --configuration-cache --configuration-cache-problems=warn app:testOseDebugUnitTest
+
+  test_on_emulator:
+    needs: compile
+    if: ${{ always() }}     # even if compile didn't run (because not on main branch)
+    name: Instrumented tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v3
+        with:
+          cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+          cache-read-only: true
+
+      - name: Enable KVM group perms
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+
+      - name: Cache AVD
+        uses: actions/cache@v4
+        with:
+          path: ~/.config/.android/avd
+          key: avd-${{ hashFiles('app/build.gradle.kts') }}   # gradle-managed devices are defined there
+
+      - name: Run device tests
+        run: ./gradlew --build-cache --configuration-cache --configuration-cache-problems=warn app:virtualCheck

.gitignore

@@ -8,8 +8,9 @@
 # Files for the Dalvik VM
 *.dex
 
-# Java class files
+# Java/Kotlin
 *.class
+.kotlin/
 
 # Generated files
 bin/

.gitlab-ci.yml

@@ -1,37 +0,0 @@
-image: registry.gitlab.com/bitfireat/docker-android-emulator:latest
-
-variables:
-  GIT_SUBMODULE_STRATEGY: recursive
-
-before_script:
-  - export GRADLE_USER_HOME=`pwd`/.gradle; chmod +x gradlew
-
-cache:
-  paths:
-     - .gradle/
-
-test:
-  stage: test
-  tags:
-    - privileged
-  before_script:
-   - curl -d "email=gitlab%40bitfire.at&password=$DAVTEST_TOKEN&action=Request+access" -X POST "https://davtest.dev001.net/access/"
-  script:
-   - start-emulator.sh
-   - ./gradlew app:check app:connectedCheck
-  artifacts:
-    paths:
-      - app/build/outputs/lint-results-debug.html
-      - app/build/reports
-      - build/reports
-
-pages:
-  stage: deploy
-  script:
-    - ./gradlew app:dokka
-    - mkdir public && mv app/build/dokka public
-  artifacts:
-    paths:
-      - public
-  only:
-    - master-ose

.gitmodules

@@ -1,9 +0,0 @@
-[submodule "ical4android"]
-	path = ical4android
-	url = https://gitlab.com/bitfireAT/ical4android.git
-[submodule "vcard4android"]
-	path = vcard4android
-	url = https://gitlab.com/bitfireAT/vcard4android.git
-[submodule "cert4android"]
-	path = cert4android
-	url = https://gitlab.com/bitfireAT/cert4android.git

.tx/config

@@ -1,29 +1,30 @@
 [main]
-host = https://www.transifex.com
+host     = https://www.transifex.com
+lang_map = ar_SA: ar, en_GB: en-rGB, fa_IR: fa-rIR, fi_FI: fi, nb_NO: nb, sk_SK: sk, sl_SI: sl, tr_TR: tr, zh_CN: zh, zh_TW: zh-rTW
 
-[davx5.app]
-file_filter = app/src/main/res/values-<lang>/strings.xml
-minimum_perc = 0
-source_file = app/src/main/res/values/strings.xml
-source_lang = en
-trans.tr_TR = app/src/main/res/values-tr/strings.xml
-trans.zh_CN = app/src/main/res/values-zh/strings.xml
-type = ANDROID
+[o:bitfireAT:p:davx5:r:app]
+file_filter   = app/src/main/res/values-<lang>/strings.xml
+source_file   = app/src/main/res/values/strings.xml
+source_lang   = en
+type          = ANDROID
+minimum_perc  = 20
+resource_name = App strings (all flavors)
 
-[davx5.metadata-short-description]
-file_filter = fastlane/metadata/android/<lang>/short_description.txt
-minimum_perc = 100
-source_file = fastlane/metadata/android/en-US/short_description.txt
-source_lang = en
-trans.sl_SI = fastlane/metadata/android/sl-SI/short_description.txt
-trans.zh_CN = fastlane/metadata/android/zh/short_description.txt
-type = TXT
 
-[davx5.metadata-full-description]
-file_filter = fastlane/metadata/android/<lang>/full_description.txt
-minimum_perc = 100
-source_file = fastlane/metadata/android/en-US/full_description.txt
-source_lang = en
-trans.sl_SI = fastlane/metadata/android/sl-SI/full_description.txt
-trans.zh_CN = fastlane/metadata/android/zh/full_description.txt
-type = TXT
+# Attention: fastlane directories are like "en-us", not "en-rUS"!
+
+[o:bitfireAT:p:davx5:r:metadata-short-description]
+file_filter   = fastlane/metadata/android/<lang>/short_description.txt
+source_file   = fastlane/metadata/android/en-US/short_description.txt
+source_lang   = en
+type          = TXT
+minimum_perc  = 100
+resource_name = Metadata: short description
+
+[o:bitfireAT:p:davx5:r:metadata-full-description]
+file_filter   = fastlane/metadata/android/<lang>/full_description.txt
+source_file   = fastlane/metadata/android/en-US/full_description.txt
+source_lang   = en
+type          = TXT
+minimum_perc  = 100
+resource_name = Metadata: full description

AUTHORS

@@ -0,0 +1,11 @@
+# This is the list of significant contributors to DAVx5.
+#
+# This does not necessarily list everyone who has contributed work.
+# To see the full list of contributors, see the revision history in
+# source control.
+
+Ricki Hirner (bitfire.at)
+Bernhard Stockmann (bitfire.at)
+
+Sunik Kupfer (bitfire.at)
+Patrick Lang (techbee.at)

CONTRIBUTING.md

@@ -1,47 +1,117 @@
 
-Contributing to DAVx⁵
-=====================
-
 **Thank you for your interest in contributing to DAVx⁵!**
 
-Because you're reading this, you're probably interested in
-contributing to the DAVx⁵ code. [Other ways to contribute:
-see here.](https://www.davx5.com/donate#c306)
 
-To contribute:
+# Licensing
 
-1. It's good idea to have a look at the [DAVx⁵ Roadmap](https://gitlab.com/bitfireAT/davx5-ose/wikis/Roadmap)
-   to see whether the change is already planned. Maybe there's even a link to a
-   corresponding forum thread there.
-1. Determine which project the changes shall go to. There's
-   the DAVx⁵ main project (this repo), and the [related
-   libraries](README.md).
-1. Please post to the [DAVx⁵ development forum](https://www.davx5.com/forums)
-   before doing actual work (unless you do it only for yourself, of course).
-   This will help to coordinate activities and you'll also get hints
-   about where to start and possible pitfalls.
-1. Fork the repository.
-1. Do the changes in your repository.
-1. Submit a pull request to the original project.
-1. Post in the forum again (to make sure the pull request is being notified).
+All work in this repository is [licensed under the GPLv3](LICENSE).
+
+We (bitfire.at, initial and main contributors) are also asking you to give us
+permission to use your contribution for related non-open source projects
+like [Managed DAVx⁵](https://www.davx5.com/organizations/managed-davx5).
+
+If you send us a pull request, our CLA bot will ask you to sign the
+Contributor's License Agreement so that we can use your contribution.
 
 
-Questions, discussion
-=====================
+# Copyright
 
-We're happy to see questions, discussions etc. in the
-[DAVx⁵ development forum](https://www.davx5.com/forums)!
+Make sure that every file that contains significant work (at least every code file)
+starts with the copyright header:
+
+```
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+```
+
+You can set this in Android Studio:
+
+1. Settings / Editor / Copyright / Copyright Profiles
+2. Paste the text above (without the stars).
+3. Set Formatting so that the preview exactly looks like above; one blank line after the block.
+4. Set this copyright profile as the default profile for the project.
+5. Apply copyright: right-click in file tree / Update copyright.
 
 
-Licensing
-=========
+# Style guide
 
-All code has to be licensed under the GPL.
+Please adhere to the [Kotlin style guide](https://developer.android.com/kotlin/style-guide) and
+the following hints to make the source code uniform.
 
-We (bitfire.at, initial developers) are also asking you to double-license the
-code so that we can also use it for related non-open source projects like
-[Managed DAVx⁵](https://www.davx5.com/organizations/managed-davx5).
+**Have a look at similar files and copy their style if you're not certain.**
 
-Please find more about this in the Contributor's License Agreement (CLA)
-we'll send to you if you want to contribute.
+Sample file (pay attention to blank lines and other formatting):
+
+```
+<Copyright header, see above>
+
+class MyClass(int arg1) : SuperClass() {
+
+    companion object {
+
+        const val CONSTANT_STRING = "Constant String";
+
+        fun staticMethod() {	// Use static methods when you don't need the object context.
+            // …
+        }
+
+    }
+
+    var someProperty: String = "12345"
+    var someRelatedProperty: Int = 12345
+
+    init {
+        // constructor
+    }
+
+
+    /**
+     * Use KDoc to document important methods. Don't use it dogmatically, but writing proper documentation
+     * (not just the method name with spaces) helps you to re-think what the method shall really do.
+     */
+    fun aFun1() {		// Group methods by some logic (for instance, the order in which they will be called)
+    }				// and alphabetically within a group.
+
+    fun anotherFun() {
+        // …
+    }
+
+
+    fun somethingCompletelyDifferent() {	// two blank lines to separate groups
+    }
+
+    fun helperForSomethingCompletelyDifferent() {
+        someCall(arg1, arg2, arg3, arg4)	// function calls: stick to one line unless it becomes confusing
+    }
+
+
+    class Model(				// two blank lines before inner classes
+        someArgument: SomeLongClass,		// arguments in multiple lines when they're too long for one line
+        anotherArgument: AnotherLongType,
+        thirdArgument: AnotherLongTypeName
+    ) : ViewModel() {
+
+        fun abc() {
+        }
+
+    }
+
+}
+```
+
+In general, use one blank line to separate things within one group of things, and two blank lines
+to separate groups. In rare cases, when methods are tightly coupled and are only helpers for another
+method, they may follow the calling method without separating blank lines.
+
+## Tests
+
+Test classes should be in the appropriate directory (see existing tests) and in the same package as the
+tested class. Tests are usually be named like `methodToBeTested_Condition()`, see
+[Test apps on Android](https://developer.android.com/training/testing/).
+
+
+# Authors
+
+If you make significant contributions, feel free to add yourself to the [AUTHORS file](AUTHORS).
 

README.md

@@ -1,37 +1,46 @@
+
+[![Website](https://img.shields.io/website?style=flat-square&up_color=%237cb342&url=https%3A%2F%2Fwww.davx5.com)](https://www.davx5.com/)
+[![F-Droid](https://img.shields.io/f-droid/v/at.bitfire.davdroid?style=flat-square)](https://f-droid.org/packages/at.bitfire.davdroid/)
+[![License](https://img.shields.io/github/license/bitfireAT/davx5-ose?style=flat-square)](https://github.com/bitfireAT/davx5-ose/blob/main/LICENSE)
+[![Follow @davx5app@fosstodon.org](https://img.shields.io/mastodon/follow/109598783742737223?domain=https%3A%2F%2Ffosstodon.org&style=flat-square)](https://fosstodon.org/@davx5app)
+[![Development tests](https://github.com/bitfireAT/davx5-ose/actions/workflows/test-dev.yml/badge.svg)](https://github.com/bitfireAT/davx5-ose/actions/workflows/test-dev.yml)
+
 ![DAVx⁵ logo](app/src/main/res/mipmap-xxxhdpi/ic_launcher.png)
 
+
 DAVx⁵
 ========
 
 Please see the [DAVx⁵ Web site](https://www.davx5.com) for
-comprehensive information about DAVx⁵.
+comprehensive information about DAVx⁵, including a list of services it has been tested with.
 
 DAVx⁵ is licensed under the [GPLv3 License](LICENSE).
 
-News and updates: [@davx5app](https://twitter.com/davx5app) on Twitter
+News and updates: 
 
-Help, discussion, feature requests, bug reports and "issues": [DAVx⁵ forums](https://www.davx5.com/forums)
+* [@davx5app@fosstodon.org](https://fosstodon.org/@davx5app) on Mastodon
 
-**If you want to support DAVx⁵, please consider [donating to DAVx⁵](https://www.davx5.com/donate)
-or [purchasing it](https://www.davx5.com/download).**
-
-Generated KDoc: https://bitfireAT.gitlab.io/davx5-ose/dokka/app/
+**Help, feature requests, bug reports: [DAVx⁵ discussions](https://github.com/bitfireAT/davx5-ose/discussions)**
 
 Parts of DAVx⁵ have been outsourced into these libraries:
 
-* [cert4android](https://gitlab.com/bitfireAT/cert4android) – custom certificate management
-* [dav4jvm](https://gitlab.com/bitfireAT/dav4jvm) – WebDAV/CalDav/CardDAV framework
-* [ical4android](https://gitlab.com/bitfireAT/ical4android) – iCalendar processing and Calendar Provider access
-* [vcard4android](https://gitlab.com/bitfireAT/vcard4android) – vCard processing and Contacts Provider access
+* [cert4android](https://github.com/bitfireAT/cert4android) – custom certificate management
+* [dav4jvm](https://github.com/bitfireAT/dav4jvm) – WebDAV/CalDav/CardDAV framework
+* [ical4android](https://github.com/bitfireAT/ical4android) – iCalendar processing and Calendar Provider access
+* [vcard4android](https://github.com/bitfireAT/vcard4android) – vCard processing and Contacts Provider access
+
+**If you want to support DAVx⁵, please consider [donating to DAVx⁵](https://www.davx5.com/donate)
+or [purchasing it](https://www.davx5.com/download).**
 
 
 USED THIRD-PARTY LIBRARIES
 ==========================
 
-Those libraries are used by DAVx⁵ (alphabetically):
+The most important libraries which are used by DAVx⁵ (alphabetically):
 
-* [Color Picker](https://github.com/jaredrummler/ColorPicker) – [Apache License, Version 2.0](https://github.com/jaredrummler/ColorPicker/LICENSE)
-* [dnsjava](http://www.xbill.org/dnsjava/) – [BSD License](http://www.xbill.org/dnsjava/dnsjava-current/LICENSE)
-* [ez-vcard](https://github.com/mangstadt/ez-vcard) – [New BSD License](http://opensource.org/licenses/BSD-3-Clause)
-* [iCal4j](https://github.com/ical4j/ical4j) – [New BSD License](http://sourceforge.net/p/ical4j/ical4j/ci/default/tree/LICENSE)
+* [dnsjava](https://github.com/dnsjava/dnsjava) – [BSD License](https://github.com/dnsjava/dnsjava/blob/master/LICENSE)
+* [ez-vcard](https://github.com/mangstadt/ez-vcard) – [New BSD License](https://github.com/mangstadt/ez-vcard/blob/master/LICENSE)
+* [iCal4j](https://github.com/ical4j/ical4j) – [New BSD License](https://github.com/ical4j/ical4j/blob/develop/LICENSE.txt)
 * [okhttp](https://square.github.io/okhttp) – [Apache License, Version 2.0](https://square.github.io/okhttp/#license)
+
+See _About / Libraries_ in the app for all used libraries and their licenses.

SECURITY.md

@@ -0,0 +1,5 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+Please report security vulnerabilities using our [secure support form](https://www.davx5.com/support) or via email to support-en@davx5.com.

app/build.gradle

@@ -1,183 +0,0 @@
-/*
- * Copyright (c) Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-apply plugin: 'com.android.application'
-apply plugin: 'com.mikepenz.aboutlibraries.plugin'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-kapt'
-apply plugin: 'org.jetbrains.dokka'
-
-android {
-    compileSdkVersion 31
-    buildToolsVersion '30.0.3'
-
-    defaultConfig {
-        applicationId "at.bitfire.davdroid"
-
-        versionCode 400000005
-        buildConfigField "long", "buildTime", System.currentTimeMillis() + "L"
-
-        minSdkVersion 21        // Android 5
-        targetSdkVersion 31     // Android 12
-
-        buildConfigField "String", "userAgent", "\"DAVx5\""
-
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-
-        kapt {
-            arguments {
-                arg("room.schemaLocation", "$projectDir/schemas")
-            }
-        }
-    }
-
-    compileOptions {
-        // enable because ical4android requires desugaring
-        coreLibraryDesugaringEnabled true
-
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
-
-    buildFeatures {
-        viewBinding = true
-        dataBinding = true
-    }
-
-    flavorDimensions "distribution"
-    productFlavors {
-        standard {
-            versionName "4.0-ose"
-        }
-    }
-
-    sourceSets {
-        androidTest.assets.srcDirs += files("$projectDir/schemas".toString())
-    }
-
-    buildTypes {
-        debug {
-        }
-        release {
-            minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules-release.pro'
-
-            shrinkResources true
-        }
-    }
-
-    lintOptions {
-        disable 'GoogleAppIndexingWarning'                  // we don't need Google indexing, thanks
-        disable 'ImpliedQuantity', 'MissingQuantity'        // quantities from Transifex may vary
-        disable 'MissingTranslation', 'ExtraTranslation'    // translations from Transifex are not always up to date
-        disable 'RtlEnabled', 'RtlHardcoded'                // RTL not supported yet
-        disable 'Typos'
-        disable 'NullSafeMutableLiveData'                   // crashes lint since Mar 2021
-    }
-
-    packagingOptions {
-        exclude 'META-INF/*.md'
-    }
-
-    dokka.configuration {
-        sourceLink {
-            url = "https://gitlab.com/bitfireAT/davx5-ose/tree/master-ose/"
-            lineSuffix = "#L"
-        }
-        jdkVersion = 8
-
-        externalDocumentationLink {
-            url = new URL("https://bitfireat.gitlab.io/cert4android/dokka/cert4android/")
-            packageListUrl = new URL("https://bitfireat.gitlab.io/cert4android/dokka/cert4android/package-list")
-        }
-        externalDocumentationLink {
-            url = new URL("https://bitfireat.gitlab.io/dav4jvm/dokka/dav4jvm/")
-            packageListUrl = new URL("https://bitfireat.gitlab.io/dav4jvm/dokka/dav4jvm/package-list")
-        }
-        externalDocumentationLink {
-            url = new URL("https://bitfireat.gitlab.io/ical4android/dokka/ical4android/")
-            packageListUrl = new URL("https://bitfireat.gitlab.io/ical4android/dokka/ical4android/package-list")
-        }
-        externalDocumentationLink {
-            url = new URL("https://bitfireat.gitlab.io/vcard4android/dokka/vcard4android/")
-            packageListUrl = new URL("https://bitfireat.gitlab.io/vcard4android/dokka/vcard4android/package-list")
-        }
-    }
-}
-
-aboutLibraries {
-    additionalLicenses {
-        mpl_2_0
-    }
-}
-
-dependencies {
-    implementation project(':cert4android')
-    implementation project(':ical4android')
-    implementation project(':vcard4android')
-
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:${versions.kotlin}"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2"
-    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
-
-    implementation 'androidx.appcompat:appcompat:1.3.1'
-    implementation 'androidx.browser:browser:1.3.0'
-    implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
-    implementation 'androidx.core:core-ktx:1.6.0'
-    implementation 'androidx.fragment:fragment-ktx:1.3.6'
-    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
-    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1'
-    implementation 'androidx.paging:paging-runtime-ktx:3.0.1'
-    implementation 'androidx.preference:preference-ktx:1.1.1'
-    implementation 'androidx.security:security-crypto:1.1.0-alpha03'
-    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
-    implementation 'com.google.android.flexbox:flexbox:3.0.0'
-    implementation 'com.google.android.material:material:1.4.0'
-
-    def room_version = '2.4.0-alpha04'          // 2.4.0-alpha05 crashes because of paging problem
-    implementation "androidx.room:room-runtime:$room_version"
-    implementation "androidx.room:room-ktx:$room_version"
-    implementation "androidx.room:room-paging:$room_version"
-    kapt "androidx.room:room-compiler:$room_version"
-    androidTestImplementation "androidx.room:room-testing:$room_version"
-
-    implementation 'com.jaredrummler:colorpicker:1.1.0'
-    implementation "com.github.AppIntro:AppIntro:${versions.appIntro}"
-    implementation("com.gitlab.bitfireAT:dav4jvm:${versions.dav4jvm}") {
-        exclude group: 'junit'
-    }
-    implementation "com.mikepenz:aboutlibraries:${versions.aboutLibraries}"
-    implementation "com.squareup.okhttp3:okhttp:${versions.okhttp}"
-    implementation "com.squareup.okhttp3:okhttp-brotli:${versions.okhttp}"
-    implementation "com.squareup.okhttp3:logging-interceptor:${versions.okhttp}"
-    implementation 'commons-io:commons-io:2.6'
-    //noinspection GradleDependency - dnsjava 3+ needs Java 8/Android 7
-    implementation 'dnsjava:dnsjava:2.1.9'
-    //noinspection GradleDependency
-    implementation "org.apache.commons:commons-collections4:${versions.commonsCollections}"
-    //noinspection GradleDependency
-    implementation "org.apache.commons:commons-lang3:${versions.commonsLang}"
-    //noinspection GradleDependency
-    implementation "org.apache.commons:commons-text:${versions.commonsText}"
-
-    // for tests
-    androidTestImplementation 'androidx.test:runner:1.4.0'
-    androidTestImplementation 'androidx.test:rules:1.4.0'
-    androidTestImplementation 'androidx.test.ext:junit-ktx:1.1.3'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.4.0'
-    androidTestImplementation 'junit:junit:4.13.2'
-    androidTestImplementation "com.squareup.okhttp3:mockwebserver:${versions.okhttp}"
-
-    testImplementation 'junit:junit:4.13.2'
-    testImplementation "com.squareup.okhttp3:mockwebserver:${versions.okhttp}"
-}

app/build.gradle.kts

@@ -0,0 +1,219 @@
+/***************************************************************************************************
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ **************************************************************************************************/
+
+plugins {
+    alias(libs.plugins.mikepenz.aboutLibraries)
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.compose.compiler)
+    alias(libs.plugins.hilt)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.ksp)
+}
+
+// Android configuration
+android {
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "at.bitfire.davdroid"
+
+        versionCode = 404030200
+        versionName = "4.4.3.2"
+
+        setProperty("archivesBaseName", "davx5-ose-$versionName")
+
+        minSdk = 24        // Android 7.0
+        targetSdk = 35     // Android 15
+
+        testInstrumentationRunner = "at.bitfire.davdroid.HiltTestRunner"
+    }
+
+    java {
+        toolchain {
+            languageVersion = JavaLanguageVersion.of(21)
+        }
+    }
+
+    compileOptions {
+        // required for
+        // - dnsjava 3.x: java.nio.file.Path
+        // - ical4android: time API
+        isCoreLibraryDesugaringEnabled = true
+    }
+
+    buildFeatures {
+        buildConfig = true
+        compose = true
+    }
+
+    // Java namespace for our classes (not to be confused with Android package ID)
+    namespace = "at.bitfire.davdroid"
+
+    flavorDimensions += "distribution"
+    productFlavors {
+        create("ose") {
+            dimension = "distribution"
+            versionNameSuffix = "-ose"
+        }
+    }
+
+    sourceSets {
+        getByName("androidTest") {
+            assets.srcDir("$projectDir/schemas")
+        }
+    }
+
+    signingConfigs {
+        create("bitfire") {
+            storeFile = file(System.getenv("ANDROID_KEYSTORE") ?: "/dev/null")
+            storePassword = System.getenv("ANDROID_KEYSTORE_PASSWORD")
+            keyAlias = System.getenv("ANDROID_KEY_ALIAS")
+            keyPassword = System.getenv("ANDROID_KEY_PASSWORD")
+        }
+    }
+
+    buildTypes {
+        getByName("release") {
+            isMinifyEnabled = true
+            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules-release.pro")
+
+            isShrinkResources = true
+
+            signingConfig = signingConfigs.findByName("bitfire")
+        }
+        getByName("debug") {
+            applicationIdSuffix = ".debug"
+        }
+    }
+
+    lint {
+        disable += arrayOf("GoogleAppIndexingWarning", "ImpliedQuantity", "MissingQuantity", "MissingTranslation", "ExtraTranslation", "RtlEnabled", "RtlHardcoded", "Typos", "NullSafeMutableLiveData")
+    }
+
+    packaging {
+        resources {
+            excludes += arrayOf("META-INF/*.md")
+        }
+    }
+
+    androidResources {
+        generateLocaleConfig = true
+    }
+
+    @Suppress("UnstableApiUsage")
+    testOptions {
+        managedDevices {
+            localDevices {
+                create("virtual") {
+                    device = "Pixel 3"
+                    apiLevel = 34
+                    systemImageSource = "aosp-atd"
+                }
+            }
+        }
+    }
+}
+
+ksp {
+    arg("room.schemaLocation", "$projectDir/schemas")
+}
+
+aboutLibraries {
+    excludeFields = arrayOf("generated")
+}
+
+configurations {
+    configureEach {
+        // exclude modules which are in conflict with system libraries
+        exclude(module="commons-logging")
+        exclude(group="org.json", module="json")
+
+        // Groovy requires SDK 26+, and it's not required, so exclude it
+        exclude(group="org.codehaus.groovy")
+    }
+}
+
+dependencies {
+    // core
+    implementation(libs.kotlin.stdlib)
+    implementation(libs.kotlinx.coroutines)
+    coreLibraryDesugaring(libs.android.desugaring)
+
+    // Hilt
+    implementation(libs.hilt.android.base)
+    ksp(libs.androidx.hilt.compiler)
+    ksp(libs.hilt.android.compiler)
+
+    // support libs
+    implementation(libs.androidx.activityCompose)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.androidx.browser)
+    implementation(libs.androidx.core)
+    implementation(libs.androidx.hilt.navigation.compose)
+    implementation(libs.androidx.hilt.work)
+    implementation(libs.androidx.lifecycle.runtime.compose)
+    implementation(libs.androidx.lifecycle.viewmodel.base)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
+    implementation(libs.androidx.paging)
+    implementation(libs.androidx.paging.compose)
+    implementation(libs.androidx.preference)
+    implementation(libs.androidx.security)
+    implementation(libs.androidx.work.base)
+
+    // Jetpack Compose
+    implementation(libs.compose.accompanist.permissions)
+    implementation(platform(libs.compose.bom))
+    implementation(libs.compose.material3)
+    implementation(libs.compose.materialIconsExtended)
+    implementation(libs.compose.runtime.livedata)
+    debugImplementation(libs.compose.ui.tooling)
+    implementation(libs.compose.ui.toolingPreview)
+
+    // Glance Widgets
+    implementation(libs.glance.base)
+    implementation(libs.glance.material)
+
+    // Jetpack Room
+    implementation(libs.room.runtime)
+    implementation(libs.room.base)
+    implementation(libs.room.paging)
+    ksp(libs.room.compiler)
+
+    // own libraries
+    implementation(libs.bitfire.cert4android)
+    implementation(libs.bitfire.dav4jvm) {
+        exclude(group="junit")
+    }
+    implementation(libs.bitfire.ical4android)
+    implementation(libs.bitfire.vcard4android)
+
+    // third-party libs
+    @Suppress("RedundantSuppression")
+    implementation(libs.dnsjava)
+    implementation(libs.guava)
+    implementation(libs.mikepenz.aboutLibraries)
+    implementation(libs.nsk90.kstatemachine)
+    implementation(libs.okhttp.base)
+    implementation(libs.okhttp.brotli)
+    implementation(libs.okhttp.logging)
+    implementation(libs.openid.appauth)
+    implementation(libs.unifiedpush)
+
+    // for tests
+    androidTestImplementation(libs.androidx.arch.core.testing)
+    androidTestImplementation(libs.androidx.test.core)
+    androidTestImplementation(libs.androidx.test.junit)
+    androidTestImplementation(libs.androidx.test.rules)
+    androidTestImplementation(libs.androidx.test.runner)
+    androidTestImplementation(libs.androidx.work.testing)
+    androidTestImplementation(libs.hilt.android.testing)
+    androidTestImplementation(libs.junit)
+    androidTestImplementation(libs.mockk.android)
+    androidTestImplementation(libs.okhttp.mockwebserver)
+    androidTestImplementation(libs.room.testing)
+
+    testImplementation(libs.junit)
+    testImplementation(libs.mockk)
+    testImplementation(libs.okhttp.mockwebserver)
+}

app/proguard-rules-release.pro

@@ -2,6 +2,7 @@
 # R8 usage for DAVx⁵:
 #    shrinking        yes (only in release builds)
 #    optimization     yes (on by R8 defaults)
+#      full-mode      no (see gradle.properties)
 #    obfuscation      no (open-source)
 
 -dontobfuscate
@@ -21,8 +22,39 @@
 # DAVx⁵ + libs
 -keep class at.bitfire.** { *; }       # all DAVx⁵ code is required
 
+# AGP 8.2 and 8.3 seem to remove this class, but ezvcard.io uses it. See https://github.com/bitfireAT/davx5/issues/499
+-keep class javax.xml.namespace.QName { *; }
+
 # we use enum classes (https://www.guardsquare.com/en/products/proguard/manual/examples#enumerations)
 -keepclassmembers,allowoptimization enum * {
     public static **[] values();
     public static ** valueOf(java.lang.String);
 }
+
+# Additional rules which are now required since missing classes can't be ignored in R8 anymore.
+# [https://developer.android.com/build/releases/past-releases/agp-7-0-0-release-notes#r8-missing-class-warning]
+-dontwarn com.android.org.conscrypt.SSLParametersImpl
+-dontwarn com.github.erosb.jsonsKema.**  # ical4j
+-dontwarn com.google.errorprone.annotations.**
+-dontwarn com.sun.jna.**                 # dnsjava
+-dontwarn groovy.**
+-dontwarn java.beans.Transient
+-dontwarn javax.cache.**                 # ical4j
+-dontwarn javax.naming.NamingException   # dnsjava
+-dontwarn javax.naming.directory.**      # dnsjava
+-dontwarn junit.textui.TestRunner
+-dontwarn lombok.**                      # dnsjava
+-dontwarn org.apache.harmony.xnet.provider.jsse.SSLParametersImpl
+-dontwarn org.bouncycastle.jsse.**
+-dontwarn org.codehaus.groovy.**
+-dontwarn org.joda.**
+-dontwarn org.jparsec.**                 # ical4j
+-dontwarn org.json.*
+-dontwarn org.jsoup.**
+-dontwarn org.openjsse.javax.net.ssl.SSLParameters
+-dontwarn org.openjsse.javax.net.ssl.SSLSocket
+-dontwarn org.openjsse.net.ssl.OpenJSSE
+-dontwarn org.xbill.DNS.spi.DnsjavaInetAddressResolverProvider      # dnsjava
+-dontwarn org.xmlpull.**
+-dontwarn sun.net.spi.nameservice.NameService
+-dontwarn sun.net.spi.nameservice.NameServiceDescriptor

app/schemas/at.bitfire.davdroid.db.AppDatabase/12.json

@@ -0,0 +1,615 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 12,
+    "identityHash": "67fafceecee2d97cac6a62d46fa2c3e2",
+    "entities": [
+      {
+        "tableName": "service",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `accountName` TEXT NOT NULL, `type` TEXT NOT NULL, `principal` TEXT)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "accountName",
+            "columnName": "accountName",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "type",
+            "columnName": "type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "principal",
+            "columnName": "principal",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_service_accountName_type",
+            "unique": true,
+            "columnNames": [
+              "accountName",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_service_accountName_type` ON `${TABLE_NAME}` (`accountName`, `type`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "homeset",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `personal` INTEGER NOT NULL, `url` TEXT NOT NULL, `privBind` INTEGER NOT NULL, `displayName` TEXT, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "personal",
+            "columnName": "personal",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privBind",
+            "columnName": "privBind",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_homeset_serviceId_url",
+            "unique": true,
+            "columnNames": [
+              "serviceId",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_homeset_serviceId_url` ON `${TABLE_NAME}` (`serviceId`, `url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "collection",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `homeSetId` INTEGER, `ownerId` INTEGER, `type` TEXT NOT NULL, `url` TEXT NOT NULL, `privWriteContent` INTEGER NOT NULL, `privUnbind` INTEGER NOT NULL, `forceReadOnly` INTEGER NOT NULL, `displayName` TEXT, `description` TEXT, `color` INTEGER, `timezone` TEXT, `supportsVEVENT` INTEGER, `supportsVTODO` INTEGER, `supportsVJOURNAL` INTEGER, `source` TEXT, `sync` INTEGER NOT NULL, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE , FOREIGN KEY(`homeSetId`) REFERENCES `homeset`(`id`) ON UPDATE NO ACTION ON DELETE SET NULL , FOREIGN KEY(`ownerId`) REFERENCES `principal`(`id`) ON UPDATE NO ACTION ON DELETE SET NULL )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "homeSetId",
+            "columnName": "homeSetId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "ownerId",
+            "columnName": "ownerId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "type",
+            "columnName": "type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privWriteContent",
+            "columnName": "privWriteContent",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privUnbind",
+            "columnName": "privUnbind",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "forceReadOnly",
+            "columnName": "forceReadOnly",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "description",
+            "columnName": "description",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "color",
+            "columnName": "color",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "timezone",
+            "columnName": "timezone",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVEVENT",
+            "columnName": "supportsVEVENT",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVTODO",
+            "columnName": "supportsVTODO",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVJOURNAL",
+            "columnName": "supportsVJOURNAL",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "source",
+            "columnName": "source",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "sync",
+            "columnName": "sync",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_collection_serviceId_type",
+            "unique": false,
+            "columnNames": [
+              "serviceId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_serviceId_type` ON `${TABLE_NAME}` (`serviceId`, `type`)"
+          },
+          {
+            "name": "index_collection_homeSetId_type",
+            "unique": false,
+            "columnNames": [
+              "homeSetId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_homeSetId_type` ON `${TABLE_NAME}` (`homeSetId`, `type`)"
+          },
+          {
+            "name": "index_collection_url",
+            "unique": false,
+            "columnNames": [
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_url` ON `${TABLE_NAME}` (`url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "homeset",
+            "onDelete": "SET NULL",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "homeSetId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "principal",
+            "onDelete": "SET NULL",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "ownerId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "principal",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `url` TEXT NOT NULL, `displayName` TEXT, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_principal_serviceId_url",
+            "unique": true,
+            "columnNames": [
+              "serviceId",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_principal_serviceId_url` ON `${TABLE_NAME}` (`serviceId`, `url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "syncstats",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `collectionId` INTEGER NOT NULL, `authority` TEXT NOT NULL, `lastSync` INTEGER NOT NULL, FOREIGN KEY(`collectionId`) REFERENCES `collection`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "collectionId",
+            "columnName": "collectionId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "authority",
+            "columnName": "authority",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "lastSync",
+            "columnName": "lastSync",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_syncstats_collectionId_authority",
+            "unique": true,
+            "columnNames": [
+              "collectionId",
+              "authority"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_syncstats_collectionId_authority` ON `${TABLE_NAME}` (`collectionId`, `authority`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "collection",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "collectionId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "webdav_document",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `mountId` INTEGER NOT NULL, `parentId` INTEGER, `name` TEXT NOT NULL, `isDirectory` INTEGER NOT NULL, `displayName` TEXT, `mimeType` TEXT, `eTag` TEXT, `lastModified` INTEGER, `size` INTEGER, `mayBind` INTEGER, `mayUnbind` INTEGER, `mayWriteContent` INTEGER, `quotaAvailable` INTEGER, `quotaUsed` INTEGER, FOREIGN KEY(`mountId`) REFERENCES `webdav_mount`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE , FOREIGN KEY(`parentId`) REFERENCES `webdav_document`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mountId",
+            "columnName": "mountId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "parentId",
+            "columnName": "parentId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isDirectory",
+            "columnName": "isDirectory",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mimeType",
+            "columnName": "mimeType",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "eTag",
+            "columnName": "eTag",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "lastModified",
+            "columnName": "lastModified",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "size",
+            "columnName": "size",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayBind",
+            "columnName": "mayBind",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayUnbind",
+            "columnName": "mayUnbind",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayWriteContent",
+            "columnName": "mayWriteContent",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "quotaAvailable",
+            "columnName": "quotaAvailable",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "quotaUsed",
+            "columnName": "quotaUsed",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_webdav_document_mountId_parentId_name",
+            "unique": true,
+            "columnNames": [
+              "mountId",
+              "parentId",
+              "name"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_webdav_document_mountId_parentId_name` ON `${TABLE_NAME}` (`mountId`, `parentId`, `name`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "webdav_mount",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "mountId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "webdav_document",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "parentId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "webdav_mount",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT NOT NULL, `url` TEXT NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '67fafceecee2d97cac6a62d46fa2c3e2')"
+    ]
+  }
+}

app/schemas/at.bitfire.davdroid.db.AppDatabase/13.json

@@ -0,0 +1,640 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 13,
+    "identityHash": "0a6a9705ff471acd766ab96e3edf8ac3",
+    "entities": [
+      {
+        "tableName": "service",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `accountName` TEXT NOT NULL, `type` TEXT NOT NULL, `principal` TEXT)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "accountName",
+            "columnName": "accountName",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "type",
+            "columnName": "type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "principal",
+            "columnName": "principal",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_service_accountName_type",
+            "unique": true,
+            "columnNames": [
+              "accountName",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_service_accountName_type` ON `${TABLE_NAME}` (`accountName`, `type`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "homeset",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `personal` INTEGER NOT NULL, `url` TEXT NOT NULL, `privBind` INTEGER NOT NULL, `displayName` TEXT, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "personal",
+            "columnName": "personal",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privBind",
+            "columnName": "privBind",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_homeset_serviceId_url",
+            "unique": true,
+            "columnNames": [
+              "serviceId",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_homeset_serviceId_url` ON `${TABLE_NAME}` (`serviceId`, `url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "collection",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `homeSetId` INTEGER, `ownerId` INTEGER, `type` TEXT NOT NULL, `url` TEXT NOT NULL, `privWriteContent` INTEGER NOT NULL, `privUnbind` INTEGER NOT NULL, `forceReadOnly` INTEGER NOT NULL, `displayName` TEXT, `description` TEXT, `color` INTEGER, `timezone` TEXT, `supportsVEVENT` INTEGER, `supportsVTODO` INTEGER, `supportsVJOURNAL` INTEGER, `source` TEXT, `sync` INTEGER NOT NULL, `pushTopic` TEXT, `supportsWebPush` INTEGER NOT NULL DEFAULT 0, `pushSubscription` TEXT, `pushSubscriptionCreated` INTEGER, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE , FOREIGN KEY(`homeSetId`) REFERENCES `homeset`(`id`) ON UPDATE NO ACTION ON DELETE SET NULL , FOREIGN KEY(`ownerId`) REFERENCES `principal`(`id`) ON UPDATE NO ACTION ON DELETE SET NULL )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "homeSetId",
+            "columnName": "homeSetId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "ownerId",
+            "columnName": "ownerId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "type",
+            "columnName": "type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privWriteContent",
+            "columnName": "privWriteContent",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privUnbind",
+            "columnName": "privUnbind",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "forceReadOnly",
+            "columnName": "forceReadOnly",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "description",
+            "columnName": "description",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "color",
+            "columnName": "color",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "timezone",
+            "columnName": "timezone",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVEVENT",
+            "columnName": "supportsVEVENT",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVTODO",
+            "columnName": "supportsVTODO",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVJOURNAL",
+            "columnName": "supportsVJOURNAL",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "source",
+            "columnName": "source",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "sync",
+            "columnName": "sync",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "pushTopic",
+            "columnName": "pushTopic",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsWebPush",
+            "columnName": "supportsWebPush",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "0"
+          },
+          {
+            "fieldPath": "pushSubscription",
+            "columnName": "pushSubscription",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "pushSubscriptionCreated",
+            "columnName": "pushSubscriptionCreated",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_collection_serviceId_type",
+            "unique": false,
+            "columnNames": [
+              "serviceId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_serviceId_type` ON `${TABLE_NAME}` (`serviceId`, `type`)"
+          },
+          {
+            "name": "index_collection_homeSetId_type",
+            "unique": false,
+            "columnNames": [
+              "homeSetId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_homeSetId_type` ON `${TABLE_NAME}` (`homeSetId`, `type`)"
+          },
+          {
+            "name": "index_collection_url",
+            "unique": false,
+            "columnNames": [
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_url` ON `${TABLE_NAME}` (`url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "homeset",
+            "onDelete": "SET NULL",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "homeSetId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "principal",
+            "onDelete": "SET NULL",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "ownerId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "principal",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `url` TEXT NOT NULL, `displayName` TEXT, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_principal_serviceId_url",
+            "unique": true,
+            "columnNames": [
+              "serviceId",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_principal_serviceId_url` ON `${TABLE_NAME}` (`serviceId`, `url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "syncstats",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `collectionId` INTEGER NOT NULL, `authority` TEXT NOT NULL, `lastSync` INTEGER NOT NULL, FOREIGN KEY(`collectionId`) REFERENCES `collection`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "collectionId",
+            "columnName": "collectionId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "authority",
+            "columnName": "authority",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "lastSync",
+            "columnName": "lastSync",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_syncstats_collectionId_authority",
+            "unique": true,
+            "columnNames": [
+              "collectionId",
+              "authority"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_syncstats_collectionId_authority` ON `${TABLE_NAME}` (`collectionId`, `authority`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "collection",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "collectionId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "webdav_document",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `mountId` INTEGER NOT NULL, `parentId` INTEGER, `name` TEXT NOT NULL, `isDirectory` INTEGER NOT NULL, `displayName` TEXT, `mimeType` TEXT, `eTag` TEXT, `lastModified` INTEGER, `size` INTEGER, `mayBind` INTEGER, `mayUnbind` INTEGER, `mayWriteContent` INTEGER, `quotaAvailable` INTEGER, `quotaUsed` INTEGER, FOREIGN KEY(`mountId`) REFERENCES `webdav_mount`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE , FOREIGN KEY(`parentId`) REFERENCES `webdav_document`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mountId",
+            "columnName": "mountId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "parentId",
+            "columnName": "parentId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isDirectory",
+            "columnName": "isDirectory",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mimeType",
+            "columnName": "mimeType",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "eTag",
+            "columnName": "eTag",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "lastModified",
+            "columnName": "lastModified",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "size",
+            "columnName": "size",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayBind",
+            "columnName": "mayBind",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayUnbind",
+            "columnName": "mayUnbind",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayWriteContent",
+            "columnName": "mayWriteContent",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "quotaAvailable",
+            "columnName": "quotaAvailable",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "quotaUsed",
+            "columnName": "quotaUsed",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_webdav_document_mountId_parentId_name",
+            "unique": true,
+            "columnNames": [
+              "mountId",
+              "parentId",
+              "name"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_webdav_document_mountId_parentId_name` ON `${TABLE_NAME}` (`mountId`, `parentId`, `name`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "webdav_mount",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "mountId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "webdav_document",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "parentId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "webdav_mount",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT NOT NULL, `url` TEXT NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '0a6a9705ff471acd766ab96e3edf8ac3')"
+    ]
+  }
+}

app/schemas/at.bitfire.davdroid.db.AppDatabase/14.json

@@ -0,0 +1,669 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 14,
+    "identityHash": "9a0eb47f27473eab254db568081a4585",
+    "entities": [
+      {
+        "tableName": "service",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `accountName` TEXT NOT NULL, `type` TEXT NOT NULL, `principal` TEXT)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "accountName",
+            "columnName": "accountName",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "type",
+            "columnName": "type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "principal",
+            "columnName": "principal",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_service_accountName_type",
+            "unique": true,
+            "columnNames": [
+              "accountName",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_service_accountName_type` ON `${TABLE_NAME}` (`accountName`, `type`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "homeset",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `personal` INTEGER NOT NULL, `url` TEXT NOT NULL, `privBind` INTEGER NOT NULL, `displayName` TEXT, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "personal",
+            "columnName": "personal",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privBind",
+            "columnName": "privBind",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_homeset_serviceId_url",
+            "unique": true,
+            "columnNames": [
+              "serviceId",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_homeset_serviceId_url` ON `${TABLE_NAME}` (`serviceId`, `url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "collection",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `homeSetId` INTEGER, `ownerId` INTEGER, `type` TEXT NOT NULL, `url` TEXT NOT NULL, `privWriteContent` INTEGER NOT NULL, `privUnbind` INTEGER NOT NULL, `forceReadOnly` INTEGER NOT NULL, `displayName` TEXT, `description` TEXT, `color` INTEGER, `timezone` TEXT, `supportsVEVENT` INTEGER, `supportsVTODO` INTEGER, `supportsVJOURNAL` INTEGER, `source` TEXT, `sync` INTEGER NOT NULL, `pushTopic` TEXT, `supportsWebPush` INTEGER NOT NULL DEFAULT 0, `pushSubscription` TEXT, `pushSubscriptionCreated` INTEGER, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE , FOREIGN KEY(`homeSetId`) REFERENCES `homeset`(`id`) ON UPDATE NO ACTION ON DELETE SET NULL , FOREIGN KEY(`ownerId`) REFERENCES `principal`(`id`) ON UPDATE NO ACTION ON DELETE SET NULL )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "homeSetId",
+            "columnName": "homeSetId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "ownerId",
+            "columnName": "ownerId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "type",
+            "columnName": "type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privWriteContent",
+            "columnName": "privWriteContent",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "privUnbind",
+            "columnName": "privUnbind",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "forceReadOnly",
+            "columnName": "forceReadOnly",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "description",
+            "columnName": "description",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "color",
+            "columnName": "color",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "timezone",
+            "columnName": "timezone",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVEVENT",
+            "columnName": "supportsVEVENT",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVTODO",
+            "columnName": "supportsVTODO",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsVJOURNAL",
+            "columnName": "supportsVJOURNAL",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "source",
+            "columnName": "source",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "sync",
+            "columnName": "sync",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "pushTopic",
+            "columnName": "pushTopic",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "supportsWebPush",
+            "columnName": "supportsWebPush",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "0"
+          },
+          {
+            "fieldPath": "pushSubscription",
+            "columnName": "pushSubscription",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "pushSubscriptionCreated",
+            "columnName": "pushSubscriptionCreated",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_collection_serviceId_type",
+            "unique": false,
+            "columnNames": [
+              "serviceId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_serviceId_type` ON `${TABLE_NAME}` (`serviceId`, `type`)"
+          },
+          {
+            "name": "index_collection_homeSetId_type",
+            "unique": false,
+            "columnNames": [
+              "homeSetId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_homeSetId_type` ON `${TABLE_NAME}` (`homeSetId`, `type`)"
+          },
+          {
+            "name": "index_collection_ownerId_type",
+            "unique": false,
+            "columnNames": [
+              "ownerId",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_ownerId_type` ON `${TABLE_NAME}` (`ownerId`, `type`)"
+          },
+          {
+            "name": "index_collection_pushTopic_type",
+            "unique": false,
+            "columnNames": [
+              "pushTopic",
+              "type"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_pushTopic_type` ON `${TABLE_NAME}` (`pushTopic`, `type`)"
+          },
+          {
+            "name": "index_collection_url",
+            "unique": false,
+            "columnNames": [
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_collection_url` ON `${TABLE_NAME}` (`url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "homeset",
+            "onDelete": "SET NULL",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "homeSetId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "principal",
+            "onDelete": "SET NULL",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "ownerId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "principal",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `serviceId` INTEGER NOT NULL, `url` TEXT NOT NULL, `displayName` TEXT, FOREIGN KEY(`serviceId`) REFERENCES `service`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "serviceId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_principal_serviceId_url",
+            "unique": true,
+            "columnNames": [
+              "serviceId",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_principal_serviceId_url` ON `${TABLE_NAME}` (`serviceId`, `url`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "service",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "serviceId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "syncstats",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `collectionId` INTEGER NOT NULL, `authority` TEXT NOT NULL, `lastSync` INTEGER NOT NULL, FOREIGN KEY(`collectionId`) REFERENCES `collection`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "collectionId",
+            "columnName": "collectionId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "authority",
+            "columnName": "authority",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "lastSync",
+            "columnName": "lastSync",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_syncstats_collectionId_authority",
+            "unique": true,
+            "columnNames": [
+              "collectionId",
+              "authority"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_syncstats_collectionId_authority` ON `${TABLE_NAME}` (`collectionId`, `authority`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "collection",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "collectionId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "webdav_document",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `mountId` INTEGER NOT NULL, `parentId` INTEGER, `name` TEXT NOT NULL, `isDirectory` INTEGER NOT NULL, `displayName` TEXT, `mimeType` TEXT, `eTag` TEXT, `lastModified` INTEGER, `size` INTEGER, `mayBind` INTEGER, `mayUnbind` INTEGER, `mayWriteContent` INTEGER, `quotaAvailable` INTEGER, `quotaUsed` INTEGER, FOREIGN KEY(`mountId`) REFERENCES `webdav_mount`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE , FOREIGN KEY(`parentId`) REFERENCES `webdav_document`(`id`) ON UPDATE NO ACTION ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mountId",
+            "columnName": "mountId",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "parentId",
+            "columnName": "parentId",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isDirectory",
+            "columnName": "isDirectory",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayName",
+            "columnName": "displayName",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mimeType",
+            "columnName": "mimeType",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "eTag",
+            "columnName": "eTag",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "lastModified",
+            "columnName": "lastModified",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "size",
+            "columnName": "size",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayBind",
+            "columnName": "mayBind",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayUnbind",
+            "columnName": "mayUnbind",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mayWriteContent",
+            "columnName": "mayWriteContent",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "quotaAvailable",
+            "columnName": "quotaAvailable",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "quotaUsed",
+            "columnName": "quotaUsed",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_webdav_document_mountId_parentId_name",
+            "unique": true,
+            "columnNames": [
+              "mountId",
+              "parentId",
+              "name"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_webdav_document_mountId_parentId_name` ON `${TABLE_NAME}` (`mountId`, `parentId`, `name`)"
+          },
+          {
+            "name": "index_webdav_document_parentId",
+            "unique": false,
+            "columnNames": [
+              "parentId"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_webdav_document_parentId` ON `${TABLE_NAME}` (`parentId`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "webdav_mount",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "mountId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          },
+          {
+            "table": "webdav_document",
+            "onDelete": "CASCADE",
+            "onUpdate": "NO ACTION",
+            "columns": [
+              "parentId"
+            ],
+            "referencedColumns": [
+              "id"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "webdav_mount",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT NOT NULL, `url` TEXT NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '9a0eb47f27473eab254db568081a4585')"
+    ]
+  }
+}

app/src/androidTest/AndroidManifest.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest package="at.bitfire.davdroid"
-          xmlns:android="http://schemas.android.com/apk/res/android"
-          xmlns:tools="http://schemas.android.com/tools"
-          android:installLocation="internalOnly">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    android:installLocation="internalOnly">
 
     <!-- account management permissions not required for own accounts since API level 22 -->
     <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" android:maxSdkVersion="22"/>
@@ -11,8 +9,9 @@
 
     <application>
 
+        <!-- test account type (without associated sync adapters) -->
         <service
-            android:name=".syncadapter.NullAuthenticatorService"
+            android:name="at.bitfire.davdroid.sync.account.TestAccountAuthenticator"
             android:exported="false">
             <intent-filter>
                 <action android:name="android.accounts.AccountAuthenticator"/>
@@ -25,4 +24,4 @@
 
     </application>
 
-</manifest>
+</manifest>

app/src/androidTest/java/at/bitfire/davdroid/model/AppDatabaseTest.kt

@@ -1,38 +0,0 @@
-package at.bitfire.davdroid.model
-
-import androidx.room.Room
-import androidx.room.testing.MigrationTestHelper
-import androidx.sqlite.db.framework.FrameworkSQLiteOpenHelperFactory
-import androidx.test.platform.app.InstrumentationRegistry
-import org.junit.Rule
-import org.junit.Test
-
-class AppDatabaseTest {
-
-    val TEST_DB = "test"
-
-    @Rule
-    @JvmField
-    val helper = MigrationTestHelper(
-            InstrumentationRegistry.getInstrumentation(),
-            AppDatabase::class.java.canonicalName,
-            FrameworkSQLiteOpenHelperFactory()
-    )
-
-
-    @Test
-    fun testAllMigrations() {
-        // DB schema is available since version 8
-        helper.createDatabase(TEST_DB, 8).close()
-
-        Room.databaseBuilder(
-            InstrumentationRegistry.getInstrumentation().targetContext,
-            AppDatabase::class.java,
-            TEST_DB
-        ).addMigrations(*AppDatabase.migrations).build().apply {
-            openHelper.writableDatabase
-            close()
-        }
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/model/DaoToolsTest.kt

@@ -1,64 +0,0 @@
-package at.bitfire.davdroid.model
-
-import androidx.room.Room
-import androidx.test.platform.app.InstrumentationRegistry
-import okhttp3.HttpUrl
-import okhttp3.HttpUrl.Companion.toHttpUrl
-import org.junit.After
-import org.junit.Assert.*
-import org.junit.Before
-import org.junit.Test
-
-class DaoToolsTest {
-
-    private lateinit var db: AppDatabase
-
-    @Before
-    fun createDb() {
-        val context = InstrumentationRegistry.getInstrumentation().context
-        db = Room.inMemoryDatabaseBuilder(context, AppDatabase::class.java).build()
-    }
-
-    @After
-    fun closeDb() {
-        db.close()
-    }
-
-    @Test
-    fun testSyncAll() {
-        val serviceDao = db.serviceDao()
-        val service = Service(id=0, accountName="test", type=Service.TYPE_CALDAV, principal = null)
-        service.id = serviceDao.insertOrReplace(service)
-
-        val homeSetDao = db.homeSetDao()
-        val entry1 = HomeSet(id=1, serviceId=service.id, personal=true, url= "https://example.com/1".toHttpUrl())
-        val entry3 = HomeSet(id=3, serviceId=service.id, personal=true, url= "https://example.com/3".toHttpUrl())
-        val oldItems = listOf(
-                entry1,
-                HomeSet(id=2, serviceId=service.id, personal=true, url= "https://example.com/2".toHttpUrl()),
-                entry3
-        )
-        homeSetDao.insert(oldItems)
-
-        val newItems = mutableMapOf<HttpUrl, HomeSet>()
-        newItems[entry1.url] = entry1
-
-        // no id, because identity is given by the url
-        val updated = HomeSet(id=0, serviceId=service.id, personal=true,
-                url= "https://example.com/2".toHttpUrl(), displayName="Updated Entry")
-        newItems[updated.url] = updated
-
-        val created = HomeSet(id=4, serviceId=service.id, personal=true, url= "https://example.com/4".toHttpUrl())
-        newItems[created.url] = created
-
-        DaoTools(homeSetDao).syncAll(oldItems, newItems, { it.url })
-
-        val afterSync = homeSetDao.getByService(service.id)
-        assertEquals(afterSync.size, 3)
-        assertFalse(afterSync.contains(entry3))
-        assertTrue(afterSync.contains(entry1))
-        assertTrue(afterSync.contains(updated))
-        assertTrue(afterSync.contains(created))
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/resource/LocalTestAddressBook.kt

@@ -1,34 +0,0 @@
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.Context
-import at.bitfire.vcard4android.GroupMethod
-
-class LocalTestAddressBook(
-    context: Context,
-    provider: ContentProviderClient,
-    override val groupMethod: GroupMethod
-): LocalAddressBook(context, ACCOUNT, provider) {
-
-    companion object {
-        val ACCOUNT = Account("LocalTestAddressBook", "at.bitfire.davdroid.test")
-    }
-
-    override var mainAccount: Account
-        get() = throw NotImplementedError()
-        set(value) = throw NotImplementedError()
-
-    override var readOnly: Boolean
-        get() = false
-        set(value) = throw NotImplementedError()
-
-
-    fun clear() {
-        for (contact in queryContacts(null, null))
-            contact.delete()
-        for (group in queryGroups(null, null))
-            group.delete()
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/settings/AccountSettingsTest.kt

@@ -1,72 +0,0 @@
-package at.bitfire.davdroid.settings
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import android.content.ContentResolver
-import android.os.Build
-import android.provider.CalendarContract
-import android.provider.ContactsContract
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.model.Credentials
-import at.bitfire.davdroid.syncadapter.AccountUtils
-import org.junit.After
-import org.junit.Assert.*
-import org.junit.Before
-import org.junit.Test
-import java.util.concurrent.TimeUnit
-
-class AccountSettingsTest {
-
-    val context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    val account = Account("Test Account", context.getString(R.string.account_type))
-    val fakeCredentials = Credentials("test", "test")
-
-
-    @Before
-    fun prepareAccount() {
-        assertTrue(AccountUtils.createAccount(context, account, AccountSettings.initialUserData(fakeCredentials)))
-        ContentResolver.setIsSyncable(account, CalendarContract.AUTHORITY, 1)
-        ContentResolver.setIsSyncable(account, ContactsContract.AUTHORITY, 0)
-    }
-
-    @After
-    fun removeAccount() {
-        val futureResult = AccountManager.get(context).removeAccount(account, {}, null)
-        assertTrue(futureResult.getResult(10, TimeUnit.SECONDS))
-    }
-
-
-    @Test
-    fun testSyncIntervals() {
-        val settings = AccountSettings(context, account)
-        val presetIntervals = context.resources.getStringArray(R.array.settings_sync_interval_seconds)
-                .map { it.toLong() }
-                .filter { it != AccountSettings.SYNC_INTERVAL_MANUALLY }
-        for (interval in presetIntervals) {
-            assertTrue(settings.setSyncInterval(CalendarContract.AUTHORITY, interval))
-            assertEquals(interval, settings.getSyncInterval(CalendarContract.AUTHORITY))
-        }
-    }
-
-    @Test
-    fun testSyncIntervals_IsNotSyncable() {
-        val settings = AccountSettings(context, account)
-        val interval = 15*60L    // 15 min
-        val result = settings.setSyncInterval(ContactsContract.AUTHORITY, interval)
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)     // below Android 7, Android returns true for whatever reason
-            assertFalse(result)
-    }
-
-    @Test
-    fun testSyncIntervals_TooShort() {
-        val settings = AccountSettings(context, account)
-        val interval = 60L      // 1 min is not supported by Android
-        val result = settings.setSyncInterval(CalendarContract.AUTHORITY, interval)
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)     // below Android 7, Android returns true for whatever reason
-            assertFalse(result)
-    }
-
-
-}

app/src/androidTest/java/at/bitfire/davdroid/settings/SettingsManagerTest.kt

@@ -1,28 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-package at.bitfire.davdroid.settings
-
-import androidx.test.platform.app.InstrumentationRegistry
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
-import org.junit.Test
-
-class SettingsManagerTest {
-
-    val settingsManager by lazy { SettingsManager.getInstance(InstrumentationRegistry.getInstrumentation().targetContext) }
-
-    @Test
-    fun testContainsKey() {
-        assertFalse(settingsManager.containsKey("notExisting"))
-
-        // provided by DefaultsProvider
-        assertTrue(settingsManager.containsKey(Settings.OVERRIDE_PROXY))
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/syncadapter/AccountUtilsTest.kt

@@ -1,36 +0,0 @@
-package at.bitfire.davdroid.syncadapter
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import android.os.Bundle
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.R
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertTrue
-import org.junit.Test
-import java.util.concurrent.TimeUnit
-
-class AccountUtilsTest {
-
-    val context = InstrumentationRegistry.getInstrumentation().targetContext
-    val account = Account("Test Account", context.getString(R.string.account_type))
-
-    @Test
-    fun testCreateAccount() {
-        val userData = Bundle(2)
-        userData.putString("int", "1")
-        userData.putString("string", "abc/\"-")
-        try {
-            assertTrue(AccountUtils.createAccount(context, account, userData))
-
-            // validate user data
-            val manager = AccountManager.get(context)
-            assertEquals("1", manager.getUserData(account, "int"))
-            assertEquals("abc/\"-", manager.getUserData(account, "string"))
-        } finally {
-            val futureResult = AccountManager.get(context).removeAccount(account, {}, null)
-            assertTrue(futureResult.getResult(10, TimeUnit.SECONDS))
-        }
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/syncadapter/SyncAdapterServiceTest.kt

@@ -1,31 +0,0 @@
-package at.bitfire.davdroid.syncadapter
-
-import android.os.Bundle
-import androidx.test.filters.SmallTest
-import at.bitfire.davdroid.syncadapter.SyncAdapterService.SyncAdapter
-import org.junit.Assert.assertArrayEquals
-import org.junit.Assert.assertTrue
-import org.junit.Test
-
-class SyncAdapterServiceTest {
-
-    @Test
-    @SmallTest
-    fun testPriorityCollections() {
-        val extras = Bundle()
-        assertTrue(SyncAdapter.priorityCollections(extras).isEmpty())
-
-        extras.putString(SyncAdapterService.SYNC_EXTRAS_PRIORITY_COLLECTIONS, "")
-        assertTrue(SyncAdapter.priorityCollections(extras).isEmpty())
-
-        extras.putString(SyncAdapterService.SYNC_EXTRAS_PRIORITY_COLLECTIONS, "123")
-        assertArrayEquals(longArrayOf(123), SyncAdapter.priorityCollections(extras).toLongArray())
-
-        extras.putString(SyncAdapterService.SYNC_EXTRAS_PRIORITY_COLLECTIONS, ",x,")
-        assertTrue(SyncAdapter.priorityCollections(extras).isEmpty())
-
-        extras.putString(SyncAdapterService.SYNC_EXTRAS_PRIORITY_COLLECTIONS, "1,2,3")
-        assertArrayEquals(longArrayOf(1,2,3), SyncAdapter.priorityCollections(extras).toLongArray())
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/ui/AccountsActivityEspressoTest.kt

@@ -1,204 +0,0 @@
-package at.bitfire.davdroid.ui
-
-import android.view.Gravity
-import android.view.View
-import android.view.ViewGroup
-import androidx.test.espresso.*
-import androidx.test.espresso.Espresso.onView
-import androidx.test.espresso.action.ViewActions
-import androidx.test.espresso.action.ViewActions.click
-import androidx.test.espresso.action.ViewActions.typeText
-import androidx.test.espresso.assertion.ViewAssertions.matches
-import androidx.test.espresso.contrib.DrawerActions
-import androidx.test.espresso.contrib.DrawerMatchers.isClosed
-import androidx.test.espresso.matcher.ViewMatchers.*
-import androidx.test.espresso.util.HumanReadables
-import androidx.test.espresso.util.TreeIterables
-import androidx.test.ext.junit.rules.activityScenarioRule
-import androidx.test.filters.LargeTest
-import at.bitfire.davdroid.R
-import org.hamcrest.Description
-import org.hamcrest.Matcher
-import org.hamcrest.Matchers
-import org.hamcrest.TypeSafeMatcher
-import org.junit.Rule
-import org.junit.Test
-import java.util.concurrent.TimeoutException
-
-@LargeTest
-class AccountsActivityEspressoTest {
-
-    @get:Rule
-    val activityScenarioRule = activityScenarioRule<AccountsActivity>()
-
-    private val username = "test"
-    private val password = "test"
-    private val baseUrl = "https://davtest.dev001.net/radicale/htpasswd/"
-
-    @Test
-    fun accountsActivityTest() {
-        skipIntroActivity()
-
-        onView(withId(R.id.fab)).perform(click())
-
-        // open first the option for Login with Base URL and then enter the test-data and confirm
-        onView(withText(R.string.login_type_url)).perform(click())
-        onView(withId(R.id.loginUrlBaseUrlEdittext)).perform(typeText(baseUrl), ViewActions.closeSoftKeyboard())
-        onView(withId(R.id.loginUrlUsernameEdittext)).perform(typeText(username), ViewActions.closeSoftKeyboard())
-        onView(withId(R.id.loginUrlPasswordEdittext)).perform(typeText(password), ViewActions.closeSoftKeyboard())
-        onView(withId(R.id.login)).perform(click())
-
-        // The detect configuration screen (detect_configuration.xml) is not asserted here, it's just skipped.
-        // login_account_details.xml is the next expected fragment, check if the expected headline appears and then click on the "Create Account" button
-        onView(isRoot()).perform(waitForView(R.id.accountName, 30000))
-
-        onView(withText(R.string.login_account_name_info)).check(matches(isDisplayed()))
-        onView(withId(R.id.create_account)).perform(click())
-
-        Thread.sleep(1000)
-
-        // check if the "test" calendar appeared
-        onView(isRoot()).perform(waitForView(R.id.title, 5000))
-        //onView(withId(R.id.title)).perform(waitForText("Test Addressbook", 30000))
-        onView(withText("Test Addressbook")).check(matches(withText("Test Addressbook")))
-
-        // Go back to the overview with all Accounts
-        Espresso.pressBack()
-        //Thread.sleep(2000)
-
-        // check if the account exists and click on it
-        onView(isRoot()).perform(waitForView((R.id.account_name), 5000))
-        onView(withText("test")).check(matches(withText("test")))
-        onView(withText("test")).perform(click())
-
-        // open the overflowMenu to delete the account
-        val overflowMenuButton = onView(
-                Matchers.allOf(withContentDescription("More options"),
-                        childAtPosition(
-                                childAtPosition(
-                                        withId(R.id.toolbar),
-                                        2),
-                                1),
-                        isDisplayed()))
-        overflowMenuButton.perform(click())
-
-        // click on the delete button
-        onView(withText(R.string.account_delete)).perform(click())
-        onView(withText(R.string.account_delete_confirmation_title)).check(matches(isDisplayed()))
-        // confirm deletion by clicking on YES
-        onView(withId(android.R.id.button1)).perform(click())
-
-        // doublecheck to make sure that the account doesn't exist anymore. The welcome text is displayed
-        onView(withText(R.string.account_list_empty)).check(matches(withText(R.string.account_list_empty)))
-    }
-
-    @Test
-    fun menuDrawerTest() {
-        skipIntroActivity()
-
-        // TESTING ABOUT DIALOG
-        // Open Drawer to click on navigation.
-        onView(withId(R.id.drawer_layout))
-                .check(matches(isClosed(Gravity.LEFT))) // Left Drawer should be closed.
-                .perform(DrawerActions.open()) // Open Drawer
-        // check if about can be opened
-        onView(withText(R.string.navigation_drawer_about)).perform(click())
-        onView(withText(R.string.about_copyright)).check(matches(isDisplayed()))
-        Espresso.pressBack()
-
-        // TESTING SETTINGS DIALOG
-        // Open Drawer to click on navigation.
-        onView(withId(R.id.drawer_layout))
-                .check(matches(isClosed(Gravity.LEFT))) // Left Drawer should be closed.
-                .perform(DrawerActions.open()) // Open Drawer
-        // check if about can be opened
-        onView(withText(R.string.navigation_drawer_settings)).perform(click())
-        onView(withText(R.string.app_settings_show_debug_info)).check(matches(isDisplayed()))
-        Espresso.pressBack()
-
-        // TESTING WEBSITE MENU ENTRY
-        // Open Drawer to click on navigation.
-        onView(withId(R.id.drawer_layout))
-                .check(matches(isClosed(Gravity.LEFT))) // Left Drawer should be closed.
-                .perform(DrawerActions.open()) // Open Drawer
-        // check if Website can be opened
-        //onView(withText(R.string.navigation_drawer_website)).perform(click())
-    }
-
-
-    private fun childAtPosition(
-            parentMatcher: Matcher<View>, position: Int): Matcher<View> {
-
-        return object : TypeSafeMatcher<View>() {
-            override fun describeTo(description: Description) {
-                description.appendText("Child at position $position in parent ")
-                parentMatcher.describeTo(description)
-            }
-
-            public override fun matchesSafely(view: View): Boolean {
-                val parent = view.parent
-                return parent is ViewGroup && parentMatcher.matches(parent)
-                        && view == parent.getChildAt(position)
-            }
-        }
-    }
-
-    private fun skipIntroActivity() {
-        try {
-            onView(withId(R.id.takeControl)).check(matches(withText(R.string.intro_slogan2)))   // intro_welcome is the first fragment, check first if the String Resource "intro_slogan2" is shown.
-            // click through up to 5 intro fragments
-            for (i in 1..5)
-                try {
-                    onView(withId(R.id.next)).perform(click())
-                } catch (ignored: Exception) { }
-            onView(withId(R.id.done)).perform(click())
-        } catch (ignored: NoMatchingViewException) {
-            // the IntroActivity or some fragments of it may not show up every time
-        }
-        onView(withText(R.string.account_list_empty)).check(matches(isDisplayed()))
-    }
-
-    /**
-     * This ViewAction tells espresso to wait till a certain view is found in the view hierarchy.
-     * Source: https://www.repeato.app/espresso-wait-for-view/
-     * @param viewId The id of the view to wait for.
-     * @param timeout The maximum time which espresso will wait for the view to show up (in milliseconds)
-     */
-    private fun waitForView(viewId: Int, timeout: Long): ViewAction {
-        return object : ViewAction {
-            override fun getConstraints(): Matcher<View> {
-                return isRoot()
-            }
-
-            override fun getDescription(): String {
-                return "wait for a specific view with id $viewId; during $timeout millis."
-            }
-
-            override fun perform(uiController: UiController, rootView: View) {
-                uiController.loopMainThreadUntilIdle()
-                val startTime = System.currentTimeMillis()
-                val endTime = startTime + timeout
-                val viewMatcher = withId(viewId)
-
-                do {
-                    // Iterate through all views on the screen and see if the view we are looking for is there already
-                    for (child in TreeIterables.breadthFirstViewTraversal(rootView)) {
-                        // found view with required ID
-                        if (viewMatcher.matches(child)) {
-                            return
-                        }
-                    }
-                    // Loops the main thread for a specified period of time.
-                    // Control may not return immediately, instead it'll return after the provided delay has passed and the queue is in an idle state again.
-                    uiController.loopMainThreadForAtLeast(100)
-                } while (System.currentTimeMillis() < endTime) // in case of a timeout we throw an exception -&gt; test fails
-                throw PerformException.Builder()
-                        .withCause(TimeoutException())
-                        .withActionDescription(this.description)
-                        .withViewDescription(HumanReadables.describe(rootView))
-                        .build()
-            }
-        }
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/webdav/CredentialsStoreTest.kt

@@ -1,23 +0,0 @@
-package at.bitfire.davdroid.webdav
-
-import androidx.test.espresso.internal.inject.InstrumentationContext
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.model.Credentials
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertNull
-import org.junit.Test
-
-class CredentialsStoreTest {
-
-    private val store = CredentialsStore(InstrumentationRegistry.getInstrumentation().targetContext)
-
-    @Test
-    fun testSetGetDelete() {
-        store.setCredentials(0, Credentials(userName = "myname", password = "12345"))
-        assertEquals(Credentials(userName = "myname", password = "12345"), store.getCredentials(0))
-
-        store.setCredentials(0, null)
-        assertNull(store.getCredentials(0))
-    }
-
-}

app/src/androidTest/java/at/bitfire/davdroid/webdav/RandomAccessBufferTest.kt

@@ -1,144 +0,0 @@
-package at.bitfire.davdroid.webdav
-
-import androidx.test.platform.app.InstrumentationRegistry
-import okhttp3.HttpUrl.Companion.toHttpUrl
-import org.apache.commons.io.FileUtils
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertTrue
-import org.junit.Test
-
-class RandomAccessBufferTest {
-
-    companion object {
-        const val FILE_LENGTH = 10*FileUtils.ONE_MB
-    }
-
-
-    @Test
-    fun testRead_FirstPage_PartialStart() {
-        var called = false
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray): Int {
-                assertEquals(0, offset)
-                assertEquals(100, size)
-                called = true
-                return size
-            }
-        })
-        val result = ByteArray(100)
-        buffer.read(0, 100, result)
-        assertTrue(called)
-    }
-
-    @Test
-    fun testRead_FirstAndSecondPage_Overlapping() {
-        var called = 0
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray): Int {
-                // first page: 10 ... RandomAccessBuffer.PAGE_SIZE = (RandomAccessBuffer.PAGE_SIZE - 10) bytes
-                // second page: 0 ... 110 = 110 bytes
-                // in total = RandomAccessBuffer.PAGE_SIZE + 100 bytes
-                when (called) {
-                    0 -> {
-                        assertEquals(10L, offset)
-                        assertEquals(RandomAccessBuffer.PAGE_SIZE - 10, size)
-                    }
-                    1 -> {
-                        assertEquals(RandomAccessBuffer.PAGE_SIZE.toLong(), offset)
-                        assertEquals(110, size)
-                    }
-                }
-                called++
-                return size
-            }
-        })
-        val result = ByteArray(RandomAccessBuffer.PAGE_SIZE + 100)
-        buffer.read(10, RandomAccessBuffer.PAGE_SIZE + 100, result)
-        assertEquals(2, called)
-    }
-
-    @Test
-    fun testRead_SecondPage_Full() {
-        var called = false
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray): Int {
-                assertEquals(0L, offset)
-                assertEquals(RandomAccessBuffer.PAGE_SIZE, size)
-                called = true
-                return size
-            }
-        })
-        val result = ByteArray(RandomAccessBuffer.PAGE_SIZE)
-        buffer.read(0, RandomAccessBuffer.PAGE_SIZE, result)
-        assertTrue(called)
-    }
-
-
-    @Test
-    fun testGetPageDirect_FullPage() {
-        var called = false
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray): Int {
-                assertEquals(0, offset)
-                assertEquals(RandomAccessBuffer.PAGE_SIZE, size)
-                called = true
-                return size
-            }
-        })
-
-        buffer.getPageDirect(0, 0, RandomAccessBuffer.PAGE_SIZE)
-        assertTrue(called)
-    }
-
-    @Test
-    fun testGetPageDirect_Partial() {
-        var called = false
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray): Int {
-                assertEquals(100, offset)
-                assertEquals(200, size)
-                called = true
-                return size
-            }
-        })
-
-        buffer.getPageDirect(0, 100, 200)
-        assertTrue(called)
-    }
-
-    @Test(expected = IndexOutOfBoundsException::class)
-    fun testGetPageDirect_Partial_StartingAtPageEnd() {
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray) = throw IllegalArgumentException()
-        })
-
-        val result = buffer.getPageDirect(0, FILE_LENGTH, 1)
-    }
-
-    @Test
-    fun testGetPageDirect_Partial_LargerThanPage() {
-        var called = false
-        val buffer = newBuffer(object: RandomAccessBuffer.Reader {
-            override fun readDirect(offset: Long, size: Int, dst: ByteArray): Int {
-                called = true
-                return size
-            }
-        })
-
-        val result = buffer.getPageDirect(0, 100, FILE_LENGTH.toInt())
-        assertTrue(called)
-        assertEquals(result.size.toLong(), FILE_LENGTH - 100)
-    }
-
-
-
-    private fun newBuffer(reader: RandomAccessBuffer.Reader) =
-        RandomAccessBuffer(
-            InstrumentationRegistry.getInstrumentation().targetContext,
-            "http://example.com/webdav".toHttpUrl(),
-            FILE_LENGTH,
-            null,
-            reader
-        )
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/Dav4jvm.kt

@@ -0,0 +1,20 @@
+/***************************************************************************************************
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ **************************************************************************************************/
+
+package at.bitfire.davdroid
+
+import android.util.Xml
+import at.bitfire.dav4jvm.XmlUtils
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class Dav4jvm {
+
+    @Test
+    fun test_Dav4jvm_XmlUtils_NewPullParser_RelaxedParsing() {
+        val parser = XmlUtils.newPullParser()
+        assertTrue(parser.getFeature(Xml.FEATURE_RELAXED))
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/HiltTestRunner.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid
+
+import android.app.Application
+import android.content.Context
+import androidx.test.runner.AndroidJUnitRunner
+import dagger.hilt.android.testing.HiltTestApplication
+
+class HiltTestRunner : AndroidJUnitRunner() {
+
+    override fun newApplication(cl: ClassLoader, name: String, context: Context): Application =
+        super.newApplication(cl, HiltTestApplication::class.java.name, context)
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/InitCalendarProviderRule.kt

@@ -0,0 +1,123 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid
+
+import android.Manifest
+import android.accounts.Account
+import android.content.ContentProviderClient
+import android.content.ContentUris
+import android.content.ContentValues
+import android.os.Build
+import android.provider.CalendarContract
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.rule.GrantPermissionRule
+import at.bitfire.davdroid.resource.LocalCalendar
+import at.bitfire.davdroid.resource.LocalEvent
+import at.bitfire.ical4android.AndroidCalendar
+import at.bitfire.ical4android.Event
+import net.fortuna.ical4j.model.property.DtStart
+import net.fortuna.ical4j.model.property.RRule
+import org.junit.Assert.assertNotNull
+import org.junit.rules.ExternalResource
+import org.junit.rules.RuleChain
+import java.util.logging.Logger
+
+/**
+ * JUnit ClassRule which initializes the AOSP CalendarProvider.
+ *
+ * It seems that the calendar provider unfortunately forgets the very first requests when it is used the very first time,
+ * maybe by some wrongly synchronized database initialization. So things like querying the instances
+ * fails in this case.
+ *
+ * So this rule is needed to allow tests which need the calendar provider to succeed even when the calendar provider
+ * is used the very first time (especially in CI tests / a fresh emulator).
+ *
+ * See [at.bitfire.davdroid.resource.LocalCalendarTest] for an example of how to use this rule.
+ */
+class InitCalendarProviderRule private constructor(): ExternalResource() {
+
+    companion object {
+
+        private var isInitialized = false
+        private val logger = Logger.getLogger(InitCalendarProviderRule::javaClass.name)
+
+        fun getInstance(): RuleChain = RuleChain
+            .outerRule(GrantPermissionRule.grant(Manifest.permission.READ_CALENDAR, Manifest.permission.WRITE_CALENDAR))
+            .around(InitCalendarProviderRule())
+
+    }
+
+    override fun before() {
+        if (!isInitialized) {
+            logger.info("Initializing calendar provider")
+            if (Build.VERSION.SDK_INT < 31)
+                logger.warning("Calendar provider initialization may or may not work. See InitCalendarProviderRule")
+
+            val context = InstrumentationRegistry.getInstrumentation().targetContext
+            val client = context.contentResolver.acquireContentProviderClient(CalendarContract.AUTHORITY)
+            assertNotNull("Couldn't acquire calendar provider", client)
+
+            client!!.use {
+                initCalendarProvider(client)
+                isInitialized = true
+            }
+        }
+    }
+
+    private fun initCalendarProvider(provider: ContentProviderClient) {
+        val account = Account("LocalCalendarTest", CalendarContract.ACCOUNT_TYPE_LOCAL)
+
+        // Sometimes, the calendar provider returns an ID for the created calendar, but then fails to find it.
+        var calendarOrNull: LocalCalendar? = null
+        for (i in 0..50) {
+            calendarOrNull = createAndVerifyCalendar(account, provider)
+            if (calendarOrNull != null)
+                break
+            else
+                Thread.sleep(100)
+        }
+        val calendar = calendarOrNull ?: throw IllegalStateException("Couldn't create calendar")
+
+        try {
+            // single event init
+            val normalEvent = Event().apply {
+                dtStart = DtStart("20220120T010203Z")
+                summary = "Event with 1 instance"
+            }
+            val normalLocalEvent = LocalEvent(calendar, normalEvent, null, null, null, 0)
+            normalLocalEvent.add()
+            LocalEvent.numInstances(provider, account, normalLocalEvent.id!!)
+
+            // recurring event init
+            val recurringEvent = Event().apply {
+                dtStart = DtStart("20220120T010203Z")
+                summary = "Event over 22 years"
+                rRules.add(RRule("FREQ=YEARLY;UNTIL=20740119T010203Z"))     // year needs to be  >2074 (not supported by Android <11 Calendar Storage)
+            }
+            val localRecurringEvent = LocalEvent(calendar, recurringEvent, null, null, null, 0)
+            localRecurringEvent.add()
+            LocalEvent.numInstances(provider, account, localRecurringEvent.id!!)
+        } finally {
+            calendar.delete()
+        }
+    }
+
+    private fun createAndVerifyCalendar(account: Account, provider: ContentProviderClient): LocalCalendar? {
+        val uri = AndroidCalendar.create(account, provider, ContentValues())
+
+        return try {
+            AndroidCalendar.findByID(
+                account,
+                provider,
+                LocalCalendar.Factory,
+                ContentUris.parseId(uri)
+            )
+        } catch (e: Exception) {
+            logger.warning("Couldn't find calendar after creation: $e")
+            null
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/OkhttpClientTest.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid
+
+import android.content.Context
+import at.bitfire.davdroid.network.HttpClient
+import at.bitfire.davdroid.settings.SettingsManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import okhttp3.Request
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class OkhttpClientTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var settingsManager: SettingsManager
+
+    @Before
+    fun inject() {
+        hiltRule.inject()
+    }
+
+
+    @Test
+    fun testIcloudWithSettings() {
+        val client = HttpClient.Builder(context).build()
+        client.okHttpClient.newCall(Request.Builder()
+                .get()
+                .url("https://icloud.com")
+                .build())
+                .execute()
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/TestModules.kt

@@ -0,0 +1,38 @@
+package at.bitfire.davdroid
+
+import at.bitfire.davdroid.push.PushRegistrationWorker
+import at.bitfire.davdroid.repository.DavCollectionRepository
+import at.bitfire.davdroid.startup.StartupPlugin
+import at.bitfire.davdroid.startup.TasksAppWatcher
+import dagger.Module
+import dagger.hilt.components.SingletonComponent
+import dagger.hilt.testing.TestInstallIn
+import dagger.multibindings.Multibinds
+
+interface TestModules {
+
+    // remove PushRegistrationWorkerModule from Android tests
+    @Module
+    @TestInstallIn(
+        components = [SingletonComponent::class],
+        replaces = [PushRegistrationWorker.PushRegistrationWorkerModule::class]
+    )
+    abstract class TestPushRegistrationWorkerModule {
+        // provides empty set of listeners
+        @Multibinds
+        abstract fun empty(): Set<DavCollectionRepository.OnChangeListener>
+    }
+
+    // remove TasksAppWatcherModule from Android tests
+    @Module
+    @TestInstallIn(
+        components = [SingletonComponent::class],
+        replaces = [TasksAppWatcher.TasksAppWatcherModule::class]
+    )
+    abstract class TestTasksAppWatcherModuleModule {
+        // provides empty set of plugins
+        @Multibinds
+        abstract fun empty(): Set<StartupPlugin>
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/TestUtils.kt

@@ -0,0 +1,82 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid
+
+import android.content.Context
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.Observer
+import androidx.work.WorkInfo
+import androidx.work.WorkManager
+import androidx.work.WorkQuery
+import org.jetbrains.annotations.TestOnly
+import org.junit.Assert.assertTrue
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.TimeoutException
+import kotlin.math.abs
+
+object TestUtils {
+
+    fun assertWithin(expected: Long, actual: Long, tolerance: Long) {
+        val absDifference = abs(expected - actual)
+        assertTrue(
+            "$actual not within ($expected ± $tolerance)",
+            absDifference <= tolerance
+        )
+    }
+
+    @TestOnly
+    fun workScheduledOrRunning(context: Context, workerName: String): Boolean =
+        workInStates(context, workerName, listOf(
+            WorkInfo.State.ENQUEUED,
+            WorkInfo.State.RUNNING
+        ))
+
+    @TestOnly
+    fun workScheduledOrRunningOrSuccessful(context: Context, workerName: String): Boolean =
+        workInStates(context, workerName, listOf(
+            WorkInfo.State.ENQUEUED,
+            WorkInfo.State.RUNNING,
+            WorkInfo.State.SUCCEEDED
+        ))
+
+    @TestOnly
+    fun workInStates(context: Context, workerName: String, states: List<WorkInfo.State>): Boolean =
+        WorkManager.getInstance(context).getWorkInfos(WorkQuery.Builder
+            .fromUniqueWorkNames(listOf(workerName))
+            .addStates(states)
+            .build()
+        ).get().isNotEmpty()
+
+
+    /* Copyright 2019 Google LLC.
+    SPDX-License-Identifier: Apache-2.0 */
+    @TestOnly
+    fun <T> LiveData<T>.getOrAwaitValue(
+        time: Long = 2,
+        timeUnit: TimeUnit = TimeUnit.SECONDS
+    ): T {
+        var data: T? = null
+        val latch = CountDownLatch(1)
+        val observer = object : Observer<T> {
+            override fun onChanged(value: T) {
+                data = value
+                latch.countDown()
+                this@getOrAwaitValue.removeObserver(this)
+            }
+        }
+
+        this.observeForever(observer)
+
+        // Don't wait indefinitely if the LiveData is not set.
+        if (!latch.await(time, timeUnit)) {
+            throw TimeoutException("LiveData value was never set.")
+        }
+
+        @Suppress("UNCHECKED_CAST")
+        return data as T
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/db/AppDatabaseTest.kt

@@ -0,0 +1,50 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.db
+
+import android.content.Context
+import androidx.room.Room
+import androidx.room.testing.MigrationTestHelper
+import androidx.sqlite.db.framework.FrameworkSQLiteOpenHelperFactory
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.Rule
+import org.junit.Test
+
+class AppDatabaseTest {
+
+    val TEST_DB = "test"
+
+    val context: Context = InstrumentationRegistry.getInstrumentation().targetContext
+
+    @Rule
+    @JvmField
+    val helper = MigrationTestHelper(
+        InstrumentationRegistry.getInstrumentation(),
+        AppDatabase::class.java,
+        listOf(), // no auto migrations until v8
+        FrameworkSQLiteOpenHelperFactory()
+    )
+
+
+    @Test
+    fun testAllMigrations() {
+        // DB schema is available since version 8, so create DB with v8
+        helper.createDatabase(TEST_DB, 8).close()
+
+        val db = Room.databaseBuilder(context, AppDatabase::class.java, TEST_DB)
+            // manual migrations
+            .addMigrations(*AppDatabase.migrations)
+            // auto-migrations that need to be specified explicitly
+            .addAutoMigrationSpec(AppDatabase.AutoMigration11_12(context))
+            .build()
+        try {
+            // open (with version 8) + migrate (to current version) database
+            db.openHelper.writableDatabase
+        } finally {
+            db.close()
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/db/CollectionTest.kt

@@ -1,37 +1,59 @@
 /*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
  */
 
-package at.bitfire.davdroid.model
+package at.bitfire.davdroid.db
 
+import android.content.Context
+import android.security.NetworkSecurityPolicy
 import androidx.test.filters.SmallTest
 import at.bitfire.dav4jvm.DavResource
-import at.bitfire.dav4jvm.property.ResourceType
-import at.bitfire.davdroid.HttpClient
+import at.bitfire.dav4jvm.property.webdav.ResourceType
+import at.bitfire.davdroid.network.HttpClient
+import at.bitfire.davdroid.settings.SettingsManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
 import okhttp3.HttpUrl.Companion.toHttpUrl
 import okhttp3.mockwebserver.MockResponse
 import okhttp3.mockwebserver.MockWebServer
 import org.junit.After
-import org.junit.Assert.*
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Assume
 import org.junit.Before
+import org.junit.Rule
 import org.junit.Test
+import javax.inject.Inject
 
+@HiltAndroidTest
 class CollectionTest {
 
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var settingsManager: SettingsManager
+
     private lateinit var httpClient: HttpClient
     private val server = MockWebServer()
 
     @Before
-    fun setUp() {
-        httpClient = HttpClient.Builder().build()
+    fun setup() {
+        hiltRule.inject()
+
+        httpClient = HttpClient.Builder(context).build()
+        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
     }
 
     @After
-    fun shutDown() {
+    fun teardown() {
         httpClient.close()
     }
 

app/src/androidTest/kotlin/at/bitfire/davdroid/db/MemoryDbModule.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.db
+
+import android.content.Context
+import androidx.room.Room
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import dagger.hilt.testing.TestInstallIn
+import javax.inject.Singleton
+
+@Module
+@TestInstallIn(
+    components = [ SingletonComponent::class ],
+    replaces = [
+        AppDatabase.AppDatabaseModule::class
+    ]
+)
+class MemoryDbModule {
+
+    @Provides
+    @Singleton
+    fun inMemoryDatabase(@ApplicationContext context: Context): AppDatabase =
+        Room.inMemoryDatabaseBuilder(context, AppDatabase::class.java)
+            // auto-migrations that need to be specified explicitly
+            .addAutoMigrationSpec(AppDatabase.AutoMigration11_12(context))
+            .build()
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/network/Android10ResolverTest.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.network
+
+import android.os.Build
+import androidx.test.filters.SdkSuppress
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.xbill.DNS.ARecord
+import org.xbill.DNS.Lookup
+import org.xbill.DNS.Type
+import java.net.Inet4Address
+import java.net.InetAddress
+
+class Android10ResolverTest {
+
+    val FQDN_DAVX5 = "www.davx5.com"
+
+    @Test
+    @SdkSuppress(minSdkVersion = Build.VERSION_CODES.Q)
+    fun testResolveA() {
+        val www = InetAddress.getAllByName(FQDN_DAVX5).filterIsInstance<Inet4Address>().first()
+
+        val srvLookup = Lookup(FQDN_DAVX5, Type.A)
+        srvLookup.setResolver(Android10Resolver())
+        val resultGeneric = srvLookup.run()
+        assertEquals(1, resultGeneric.size)
+
+        val result = resultGeneric.first() as ARecord
+        assertEquals(www, result.address)
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/network/DnsRecordResolverTest.kt

@@ -0,0 +1,122 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.network
+
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.Assert.assertArrayEquals
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.xbill.DNS.DClass
+import org.xbill.DNS.Name
+import org.xbill.DNS.SRVRecord
+import org.xbill.DNS.TXTRecord
+import javax.inject.Inject
+
+@HiltAndroidTest
+class DnsRecordResolverTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var dnsRecordResolver: DnsRecordResolver
+
+    @Before
+    fun setup() {
+        hiltRule.inject()
+    }
+
+
+    @Test
+    fun testBestSRVRecord_Empty() {
+        assertNull(dnsRecordResolver.bestSRVRecord(emptyArray()))
+    }
+
+    @Test
+    fun testBestSRVRecord_MultipleRecords_Priority_Different() {
+        val dns1010 = SRVRecord(
+            Name.fromString("_caldavs._tcp.example.com."),
+            DClass.IN, 3600, 10, 10, 8443, Name.fromString("dav1010.example.com.")
+        )
+        val dns2010 = SRVRecord(
+            Name.fromString("_caldavs._tcp.example.com."),
+            DClass.IN, 3600, 20, 20, 8443, Name.fromString("dav2010.example.com.")
+        )
+
+        // lowest priority first
+        val result = dnsRecordResolver.bestSRVRecord(arrayOf(dns1010, dns2010))
+        assertEquals(dns1010, result)
+    }
+
+    @Test
+    fun testBestSRVRecord_MultipleRecords_Priority_Same() {
+        val dns1010 = SRVRecord(
+            Name.fromString("_caldavs._tcp.example.com."),
+            DClass.IN, 3600, 10, 10, 8443, Name.fromString("dav1010.example.com.")
+        )
+        val dns1020 = SRVRecord(
+            Name.fromString("_caldavs._tcp.example.com."),
+            DClass.IN, 3600, 10, 20, 8443, Name.fromString("dav1020.example.com.")
+        )
+
+        // entries are selected randomly (for load balancing)
+        // run 1000 times to get a good distribution
+        val counts = IntArray(2)
+        for (i in 0 until 1000) {
+            val result = dnsRecordResolver.bestSRVRecord(arrayOf(dns1010, dns1020))
+
+            when (result) {
+                dns1010 -> counts[0]++
+                dns1020 -> counts[1]++
+            }
+        }
+
+        /* We had weights 10 and 20, so the distribution of 1000 tries should be roughly
+            weight 10   fraction 1/3   expected count 333   binomial distribution (p=1/3) with 99.99% in [275..393]
+            weight 20   fraction 2/3   expected count 667   binomial distribution (p=2/3) with 99.99% in [607..725]
+         */
+        assertTrue(counts[0] in 275..393)
+        assertTrue(counts[1] in 607..725)
+    }
+
+    @Test
+    fun testBestSRVRecord_OneRecord() {
+        val dns1010 = SRVRecord(
+            Name.fromString("_caldavs._tcp.example.com."),
+            DClass.IN, 3600, 10, 10, 8443, Name.fromString("dav1010.example.com.")
+        )
+        val result = dnsRecordResolver.bestSRVRecord(arrayOf(dns1010))
+        assertEquals(dns1010, result)
+    }
+
+
+    @Test
+    fun testPathsFromTXTRecords_Empty() {
+        assertTrue(dnsRecordResolver.pathsFromTXTRecords(arrayOf()).isEmpty())
+    }
+
+    @Test
+    fun testPathsFromTXTRecords_OnePath() {
+        val result = dnsRecordResolver.pathsFromTXTRecords(arrayOf(
+            TXTRecord(Name.fromString("example.com."), 0, 0L, listOf("something=else", "path=/path1"))
+        )).toTypedArray()
+        assertArrayEquals(arrayOf("/path1"), result)
+    }
+
+    @Test
+    fun testPathsFromTXTRecords_TwoPaths() {
+        val result = dnsRecordResolver.pathsFromTXTRecords(arrayOf(
+            TXTRecord(Name.fromString("example.com."), 0, 0L, listOf("path=/path1", "something-else", "path=/path2"))
+        )).toTypedArray()
+        result.sort()
+        assertArrayEquals(arrayOf("/path1", "/path2"), result)
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/network/HttpClientTest.kt

@@ -1,30 +1,45 @@
 /*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
  */
 
-package at.bitfire.davdroid
+package at.bitfire.davdroid.network
 
+import android.content.Context
+import android.security.NetworkSecurityPolicy
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
 import okhttp3.Request
 import okhttp3.mockwebserver.MockResponse
 import okhttp3.mockwebserver.MockWebServer
 import org.junit.After
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Assume
 import org.junit.Before
+import org.junit.Rule
 import org.junit.Test
+import javax.inject.Inject
 
+@HiltAndroidTest
 class HttpClientTest {
 
     lateinit var server: MockWebServer
     lateinit var httpClient: HttpClient
 
+    @get:Rule
+    var hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
     @Before
     fun setUp() {
-        httpClient = HttpClient.Builder().build()
+        hiltRule.inject()
+
+        httpClient = HttpClient.Builder(context).build()
 
         server = MockWebServer()
         server.start(30000)
@@ -39,6 +54,7 @@ class HttpClientTest {
 
     @Test
     fun testCookies() {
+        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
         val url = server.url("/test")
 
         // set cookie for root path (/) and /test path in first response
@@ -61,7 +77,8 @@ class HttpClientTest {
         httpClient.okHttpClient.newCall(Request.Builder()
                 .get().url(url)
                 .build()).execute()
-        assertEquals("cookie2=2; cookie1=1", server.takeRequest().getHeader("Cookie"))
+        val header = server.takeRequest().getHeader("Cookie")
+        assertTrue(header == "cookie1=1; cookie2=2" || header == "cookie2=2; cookie1=1")
 
         server.enqueue(MockResponse()
                 .setResponseCode(200))

app/src/androidTest/kotlin/at/bitfire/davdroid/repository/DavCollectionRepositoryTest.kt

@@ -0,0 +1,88 @@
+package at.bitfire.davdroid.repository
+
+import android.content.Context
+import at.bitfire.davdroid.db.AppDatabase
+import at.bitfire.davdroid.db.Collection
+import at.bitfire.davdroid.db.Service
+import at.bitfire.davdroid.settings.AccountSettings
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import io.mockk.mockk
+import io.mockk.verify
+import kotlinx.coroutines.runBlocking
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class DavCollectionRepositoryTest {
+
+    @get:Rule
+    var hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var accountSettingsFactory: AccountSettings.Factory
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var db: AppDatabase
+
+    @Inject
+    lateinit var serviceRepository: DavServiceRepository
+
+    var service: Service? = null
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+        service = createTestService(Service.TYPE_CARDDAV)!!
+    }
+
+    @After
+    fun cleanUp() {
+        db.close()
+        serviceRepository.deleteAll()
+    }
+
+
+    @Test
+    fun testOnChangeListener_setForceReadOnly() = runBlocking {
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                serviceId = service!!.id,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = "https://example.com".toHttpUrl(),
+                forceReadOnly = false,
+            )
+        )
+        val testObserver = mockk<DavCollectionRepository.OnChangeListener>(relaxed = true)
+        val collectionRepository = DavCollectionRepository(accountSettingsFactory, context, db, mutableSetOf(testObserver), serviceRepository)
+
+        assert(db.collectionDao().get(collectionId)?.forceReadOnly == false)
+        verify(exactly = 0) {
+            testObserver.onCollectionsChanged()
+        }
+        collectionRepository.setForceReadOnly(collectionId, true)
+        assert(db.collectionDao().get(collectionId)?.forceReadOnly == true)
+        verify(exactly = 1) {
+            testObserver.onCollectionsChanged()
+        }
+    }
+
+
+    // Test helpers and dependencies
+
+    private fun createTestService(serviceType: String) : Service? {
+        val service = Service(id=0, accountName="test", type=serviceType, principal = null)
+        val serviceId = serviceRepository.insertOrReplace(service)
+        return serviceRepository.get(serviceId)
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/repository/DavHomeSetRepositoryTest.kt

@@ -0,0 +1,78 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.repository
+
+import at.bitfire.davdroid.db.HomeSet
+import at.bitfire.davdroid.db.Service
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class DavHomeSetRepositoryTest {
+
+    @get:Rule
+    var hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var repository: DavHomeSetRepository
+
+    @Inject
+    lateinit var serviceRepository: DavServiceRepository
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+    }
+
+
+    @Test
+    fun testInsertOrUpdate() {
+        // should insert new row or update (upsert) existing row - without changing its key!
+        val serviceId = createTestService()
+
+        val entry1 = HomeSet(id=0, serviceId=serviceId, personal=true, url="https://example.com/1".toHttpUrl())
+        val insertId1 = repository.insertOrUpdateByUrl(entry1)
+        assertEquals(1L, insertId1)
+        assertEquals(entry1.apply { id = 1L }, repository.getById(1L))
+
+        val updatedEntry1 = HomeSet(id=0, serviceId=serviceId, personal=true, url="https://example.com/1".toHttpUrl(), displayName="Updated Entry")
+        val updateId1 = repository.insertOrUpdateByUrl(updatedEntry1)
+        assertEquals(1L, updateId1)
+        assertEquals(updatedEntry1.apply { id = 1L }, repository.getById(1L))
+
+        val entry2 = HomeSet(id=0, serviceId=serviceId, personal=true, url= "https://example.com/2".toHttpUrl())
+        val insertId2 = repository.insertOrUpdateByUrl(entry2)
+        assertEquals(2L, insertId2)
+        assertEquals(entry2.apply { id = 2L }, repository.getById(2L))
+    }
+
+    @Test
+    fun testDelete() {
+        // should delete row with given primary key (id)
+        val serviceId = createTestService()
+
+        val entry1 = HomeSet(id=1, serviceId=serviceId, personal=true, url= "https://example.com/1".toHttpUrl())
+
+        val insertId1 = repository.insertOrUpdateByUrl(entry1)
+        assertEquals(1L, insertId1)
+        assertEquals(entry1, repository.getById(1L))
+
+        repository.delete(entry1)
+        assertEquals(null, repository.getById(1L))
+    }
+
+
+    private fun createTestService() : Long {
+        val service = Service(id=0, accountName="test", type= Service.TYPE_CALDAV, principal = null)
+        return serviceRepository.insertOrReplace(service)
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalAddressBookTest.kt

@@ -0,0 +1,151 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.resource
+
+import android.Manifest
+import android.accounts.Account
+import android.content.ContentProviderClient
+import android.content.ContentUris
+import android.content.Context
+import android.provider.ContactsContract
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.rule.GrantPermissionRule
+import at.bitfire.vcard4android.Contact
+import at.bitfire.vcard4android.GroupMethod
+import at.bitfire.vcard4android.LabeledProperty
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import ezvcard.property.Telephone
+import java.util.LinkedList
+import javax.inject.Inject
+import org.junit.After
+import org.junit.AfterClass
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNotNull
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Rule
+import org.junit.Test
+
+@HiltAndroidTest
+class LocalAddressBookTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var addressbookFactory: LocalTestAddressBook.Factory
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    lateinit var addressBook: LocalTestAddressBook
+
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+
+        addressBook = addressbookFactory.create(provider, GroupMethod.CATEGORIES)
+        LocalTestAddressBook.createAccount(context)
+    }
+
+    @After
+    fun tearDown() {
+        // remove address book
+        addressBook.deleteCollection()
+    }
+
+
+    /**
+     * Tests whether contacts are moved (and not lost) when an address book is renamed.
+     */
+    @Test
+    fun test_renameAccount_retainsContacts() {
+        // insert contact with data row
+        val uid = "12345"
+        val contact = Contact(
+            uid = uid,
+            displayName = "Test Contact",
+            phoneNumbers = LinkedList(listOf(LabeledProperty(Telephone("1234567890"))))
+        )
+        val uri = LocalContact(addressBook, contact, null, null, 0).add()
+        val id = ContentUris.parseId(uri)
+        val localContact = addressBook.findContactById(id)
+        localContact.resetDirty()
+        assertFalse("Contact is dirty before moving", addressBook.isContactDirty(id))
+
+        // rename address book
+        val newName = "New Name"
+        addressBook.renameAccount(newName)
+        assertEquals(Account(newName, LocalTestAddressBook.ACCOUNT.type), addressBook.addressBookAccount)
+
+        // check whether contact is still here (including data rows) and not dirty
+        val result = addressBook.findContactById(id)
+        assertFalse("Contact is dirty after moving", addressBook.isContactDirty(id))
+
+        val contact2 = result.getContact()
+        assertEquals(uid, contact2.uid)
+        assertEquals("Test Contact", contact2.displayName)
+        assertEquals("1234567890", contact2.phoneNumbers.first().component1().text)
+    }
+
+    /**
+     * Tests whether groups are moved (and not lost) when an address book is renamed.
+     */
+    @Test
+    fun test_renameAccount_retainsGroups() {
+        // insert group
+        val localGroup = LocalGroup(addressBook, Contact(displayName = "Test Group"), null, null, 0)
+        val uri = localGroup.add()
+        val id = ContentUris.parseId(uri)
+
+        // make sure it's not dirty
+        localGroup.clearDirty(null, null, null)
+        assertFalse("Group is dirty before moving", addressBook.isGroupDirty(id))
+
+        // rename address book
+        val newName = "New Name"
+        addressBook.renameAccount(newName)
+        assertEquals(Account(newName, LocalTestAddressBook.ACCOUNT.type), addressBook.addressBookAccount)
+
+        // check whether group is still here and not dirty
+        val result = addressBook.findGroupById(id)
+        assertFalse("Group is dirty after moving", addressBook.isGroupDirty(id))
+
+        val group = result.getContact()
+        assertEquals("Test Group", group.displayName)
+    }
+
+
+
+    companion object {
+
+        @JvmField
+        @ClassRule
+        val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
+
+        private lateinit var provider: ContentProviderClient
+
+        @BeforeClass
+        @JvmStatic
+        fun connect() {
+            val context = InstrumentationRegistry.getInstrumentation().targetContext
+            provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
+            assertNotNull(provider)
+        }
+
+        @AfterClass
+        @JvmStatic
+        fun disconnect() {
+            provider.close()
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalCalendarTest.kt

@@ -0,0 +1,151 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.resource
+
+import android.accounts.Account
+import android.content.ContentProviderClient
+import android.content.ContentUris
+import android.content.ContentValues
+import android.provider.CalendarContract
+import android.provider.CalendarContract.ACCOUNT_TYPE_LOCAL
+import android.provider.CalendarContract.Events
+import androidx.test.platform.app.InstrumentationRegistry
+import at.bitfire.davdroid.InitCalendarProviderRule
+import at.bitfire.ical4android.AndroidCalendar
+import at.bitfire.ical4android.Event
+import at.bitfire.ical4android.util.MiscUtils.asSyncAdapter
+import at.bitfire.ical4android.util.MiscUtils.closeCompat
+import net.fortuna.ical4j.model.property.DtStart
+import net.fortuna.ical4j.model.property.RRule
+import net.fortuna.ical4j.model.property.RecurrenceId
+import net.fortuna.ical4j.model.property.Status
+import org.junit.After
+import org.junit.AfterClass
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Test
+import org.junit.rules.TestRule
+
+class LocalCalendarTest {
+
+    companion object {
+
+        @JvmField
+        @ClassRule
+        val initCalendarProviderRule: TestRule = InitCalendarProviderRule.getInstance()
+
+        private lateinit var provider: ContentProviderClient
+
+        @BeforeClass
+        @JvmStatic
+        fun setUpClass() {
+            val context = InstrumentationRegistry.getInstrumentation().targetContext
+            provider = context.contentResolver.acquireContentProviderClient(CalendarContract.AUTHORITY)!!
+        }
+
+        @AfterClass
+        @JvmStatic
+        fun tearDownClass() {
+            provider.closeCompat()
+        }
+
+    }
+
+    private val account = Account("LocalCalendarTest", ACCOUNT_TYPE_LOCAL)
+    private lateinit var calendar: LocalCalendar
+
+    @Before
+    fun setUp() {
+        val uri = AndroidCalendar.create(account, provider, ContentValues())
+        calendar = AndroidCalendar.findByID(account, provider, LocalCalendar.Factory, ContentUris.parseId(uri))
+    }
+
+    @After
+    fun tearDown() {
+        calendar.deleteCollection()
+    }
+
+
+    @Test
+    fun testDeleteDirtyEventsWithoutInstances_NoInstances_CancelledExceptions() {
+        // create recurring event with only deleted/cancelled instances
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 3 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220120T010203Z")
+                dtStart = DtStart("20220120T010203Z")
+                summary = "Cancelled exception on 1st day"
+                status = Status.VEVENT_CANCELLED
+            })
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220121T010203Z")
+                dtStart = DtStart("20220121T010203Z")
+                summary = "Cancelled exception on 2nd day"
+                status = Status.VEVENT_CANCELLED
+            })
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220122T010203Z")
+                dtStart = DtStart("20220122T010203Z")
+                summary = "Cancelled exception on 3rd day"
+                status = Status.VEVENT_CANCELLED
+            })
+        }
+        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
+        localEvent.add()
+        val eventId = localEvent.id!!
+
+        // set event as dirty
+        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
+            put(Events.DIRTY, 1)
+        }, null, null)
+
+        // this method should mark the event as deleted
+        calendar.deleteDirtyEventsWithoutInstances()
+
+        // verify that event is now marked as deleted
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
+            arrayOf(Events.DELETED), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToNext()
+            assertEquals(1, cursor.getInt(0))
+        }
+    }
+
+    @Test
+    // Flaky, Needs single or rec init of CalendarProvider (InitCalendarProviderRule)
+    fun testDeleteDirtyEventsWithoutInstances_Recurring_Instances() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 3 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
+        }
+        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
+        localEvent.add()
+        val eventId = localEvent.id!!
+
+        // set event as dirty
+        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
+            put(Events.DIRTY, 1)
+        }, null, null)
+
+        // this method should mark the event as deleted
+        calendar.deleteDirtyEventsWithoutInstances()
+
+        // verify that event is not marked as deleted
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
+            arrayOf(Events.DELETED), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToNext()
+            assertEquals(0, cursor.getInt(0))
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalEventTest.kt

@@ -0,0 +1,484 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.resource
+
+import android.accounts.Account
+import android.content.ContentProviderClient
+import android.content.ContentUris
+import android.content.ContentValues
+import android.os.Build
+import android.provider.CalendarContract
+import android.provider.CalendarContract.ACCOUNT_TYPE_LOCAL
+import android.provider.CalendarContract.Events
+import androidx.test.platform.app.InstrumentationRegistry
+import at.bitfire.davdroid.InitCalendarProviderRule
+import at.bitfire.ical4android.AndroidCalendar
+import at.bitfire.ical4android.Event
+import at.bitfire.ical4android.util.MiscUtils.closeCompat
+import at.techbee.jtx.JtxContract.asSyncAdapter
+import net.fortuna.ical4j.model.Date
+import net.fortuna.ical4j.model.DateList
+import net.fortuna.ical4j.model.parameter.Value
+import net.fortuna.ical4j.model.property.DtStart
+import net.fortuna.ical4j.model.property.ExDate
+import net.fortuna.ical4j.model.property.RRule
+import net.fortuna.ical4j.model.property.RecurrenceId
+import net.fortuna.ical4j.model.property.Status
+import org.junit.After
+import org.junit.AfterClass
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Test
+import org.junit.rules.TestRule
+import java.util.UUID
+
+class LocalEventTest {
+
+    companion object {
+
+        @JvmField
+        @ClassRule
+        val initCalendarProviderRule: TestRule = InitCalendarProviderRule.getInstance()
+
+        private lateinit var provider: ContentProviderClient
+
+        @BeforeClass
+        @JvmStatic
+        fun setUpClass() {
+            val context = InstrumentationRegistry.getInstrumentation().targetContext
+            provider = context.contentResolver.acquireContentProviderClient(CalendarContract.AUTHORITY)!!
+        }
+
+        @AfterClass
+        @JvmStatic
+        fun tearDownClass() {
+            provider.closeCompat()
+        }
+
+    }
+
+    private val account = Account("LocalCalendarTest", ACCOUNT_TYPE_LOCAL)
+    private lateinit var calendar: LocalCalendar
+
+    @Before
+    fun setUp() {
+        val uri = AndroidCalendar.create(account, provider, ContentValues())
+        calendar = AndroidCalendar.findByID(account, provider, LocalCalendar.Factory, ContentUris.parseId(uri))
+    }
+
+    @After
+    fun removeCalendar() {
+        calendar.deleteCollection()
+    }
+
+
+    @Test
+    fun testNumDirectInstances_SingleInstance() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 1 instance"
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertEquals(1, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    fun testNumDirectInstances_Recurring() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 5 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertEquals(5, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    fun testNumDirectInstances_Recurring_Endless() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event without end"
+            rRules.add(RRule("FREQ=DAILY"))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertNull(LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    // flaky, needs InitCalendarProviderRule
+    fun testNumDirectInstances_Recurring_LateEnd() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 53 years"
+            rRules.add(RRule("FREQ=YEARLY;UNTIL=20740119T010203Z"))     // year 2074 is not supported by Android <11 Calendar Storage
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
+            assertEquals(52, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+        else
+            assertNull(LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    // flaky, needs InitCalendarProviderRule
+    fun testNumDirectInstances_Recurring_ManyInstances() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 2 years"
+            rRules.add(RRule("FREQ=DAILY;UNTIL=20240120T010203Z"))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+        val number = LocalEvent.numDirectInstances(provider, account, localEvent.id!!)
+
+        // Some android versions (i.e. <=Q and S) return 365*2 instances (wrong, 365*2+1 => correct),
+        // but we are satisfied with either result for now
+        assertTrue(number == 365*2 || number == 365*2+1)
+    }
+
+    @Test
+    // flaky, needs InitCalendarProviderRule
+    fun testNumDirectInstances_RecurringWithExdate() {
+        val event = Event().apply {
+            dtStart = DtStart(Date("20220120T010203Z"))
+            summary = "Event with 5 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
+            exDates.add(ExDate(DateList("20220121T010203Z", Value.DATE_TIME)))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertEquals(4, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    fun testNumDirectInstances_RecurringWithExceptions() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 5 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220122T010203Z")
+                dtStart = DtStart("20220122T130203Z")
+                summary = "Exception on 3rd day"
+            })
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220124T010203Z")
+                dtStart = DtStart("20220122T160203Z")
+                summary = "Exception on 5th day"
+            })
+        }
+        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, 0)
+        localEvent.add()
+
+        assertEquals(5-2, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
+    }
+
+
+    @Test
+    // flaky, needs InitCalendarProviderRule
+    fun testNumInstances_SingleInstance() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 1 instance"
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertEquals(1, LocalEvent.numInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    fun testNumInstances_Recurring() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 5 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertEquals(5, LocalEvent.numInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    fun testNumInstances_Recurring_Endless() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with infinite instances"
+            rRules.add(RRule("FREQ=YEARLY"))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertNull(LocalEvent.numInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    // flaky, needs InitCalendarProviderRule
+    fun testNumInstances_Recurring_LateEnd() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event over 22 years"
+            rRules.add(RRule("FREQ=YEARLY;UNTIL=20740119T010203Z"))     // year 2074 not supported by Android <11 Calendar Storage
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
+            assertEquals(52, LocalEvent.numInstances(provider, account, localEvent.id!!))
+        else
+            assertNull(LocalEvent.numInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    // flaky, needs InitCalendarProviderRule
+    fun testNumInstances_Recurring_ManyInstances() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event over two years"
+            rRules.add(RRule("FREQ=DAILY;UNTIL=20240120T010203Z"))
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        assertEquals(
+            if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.Q)
+                365*2       // Android <10: does not include UNTIL (incorrect!)
+            else
+                365*2 + 1,  // Android ≥10: includes UNTIL (correct)
+            LocalEvent.numInstances(provider, account, localEvent.id!!))
+    }
+
+    @Test
+    fun testNumInstances_RecurringWithExceptions() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 6 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=6"))
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220122T010203Z")
+                dtStart = DtStart("20220122T130203Z")
+                summary = "Exception on 3rd day"
+            })
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220124T010203Z")
+                dtStart = DtStart("20220122T160203Z")
+                summary = "Exception on 5th day"
+            })
+        }
+        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, 0)
+        val uri = localEvent.add()
+
+        calendar.findById(localEvent.id!!)
+
+        assertEquals(6, LocalEvent.numInstances(provider, account, localEvent.id!!))
+    }
+
+
+    @Test
+    fun testMarkEventAsDeleted() {
+        // Create event
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "A fine event"
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()
+
+        // Delete event
+        LocalEvent.markAsDeleted(provider, account, localEvent.id!!)
+
+        // Get the status of whether the event is deleted
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
+            arrayOf(Events.DELETED),
+            null,
+            null, null
+        )!!.use { cursor ->
+            cursor.moveToFirst()
+            assertEquals(1, cursor.getInt(0))
+        }
+    }
+
+
+    @Test
+    fun testPrepareForUpload_NoUid() {
+        // create event
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event without uid"
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add()    // save it to calendar storage
+
+        // prepare for upload - this should generate a new random uuid, returned as filename
+        val fileNameWithSuffix = localEvent.prepareForUpload()
+        val fileName = fileNameWithSuffix.removeSuffix(".ics")
+
+        // throws an exception if fileName is not an UUID
+        UUID.fromString(fileName)
+
+        // UID in calendar storage should be the same as file name
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
+            arrayOf(Events.UID_2445), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToFirst()
+            assertEquals(fileName, cursor.getString(0))
+        }
+    }
+
+    @Test
+    fun testPrepareForUpload_NormalUid() {
+        // create event
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with normal uid"
+            uid = "some-event@hostname.tld"     // old UID format, UUID would be new format
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add() // save it to calendar storage
+
+        // prepare for upload - this should use the UID for the file name
+        val fileNameWithSuffix = localEvent.prepareForUpload()
+        val fileName = fileNameWithSuffix.removeSuffix(".ics")
+
+        assertEquals(event.uid, fileName)
+
+        // UID in calendar storage should still be set, too
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
+            arrayOf(Events.UID_2445), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToFirst()
+            assertEquals(fileName, cursor.getString(0))
+        }
+    }
+
+    @Test
+    fun testPrepareForUpload_UidHasDangerousChars() {
+        // create event
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with funny uid"
+            uid = "https://www.example.com/events/asdfewfe-cxyb-ewrws-sadfrwerxyvser-asdfxye-"
+        }
+        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
+        localEvent.add() // save it to calendar storage
+
+        // prepare for upload - this should generate a new random uuid, returned as filename
+        val fileNameWithSuffix = localEvent.prepareForUpload()
+        val fileName = fileNameWithSuffix.removeSuffix(".ics")
+
+        // throws an exception if fileName is not an UUID
+        UUID.fromString(fileName)
+
+        // UID in calendar storage shouldn't have been changed
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
+            arrayOf(Events.UID_2445), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToFirst()
+            assertEquals(event.uid, cursor.getString(0))
+        }
+    }
+
+
+    @Test
+    fun testDeleteDirtyEventsWithoutInstances_NoInstances_Exdate() {
+        // TODO
+    }
+
+    @Test
+    fun testDeleteDirtyEventsWithoutInstances_NoInstances_CancelledExceptions() {
+        // create recurring event with only deleted/cancelled instances
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 3 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220120T010203Z")
+                dtStart = DtStart("20220120T010203Z")
+                summary = "Cancelled exception on 1st day"
+                status = Status.VEVENT_CANCELLED
+            })
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220121T010203Z")
+                dtStart = DtStart("20220121T010203Z")
+                summary = "Cancelled exception on 2nd day"
+                status = Status.VEVENT_CANCELLED
+            })
+            exceptions.add(Event().apply {
+                recurrenceId = RecurrenceId("20220122T010203Z")
+                dtStart = DtStart("20220122T010203Z")
+                summary = "Cancelled exception on 3rd day"
+                status = Status.VEVENT_CANCELLED
+            })
+        }
+        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
+        localEvent.add()
+        val eventId = localEvent.id!!
+
+        // set event as dirty
+        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
+            put(Events.DIRTY, 1)
+        }, null, null)
+
+        // this method should mark the event as deleted
+        calendar.deleteDirtyEventsWithoutInstances()
+
+        // verify that event is now marked as deleted
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
+            arrayOf(Events.DELETED), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToNext()
+            assertEquals(1, cursor.getInt(0))
+        }
+    }
+
+    @Test
+    fun testDeleteDirtyEventsWithoutInstances_Recurring_Instances() {
+        val event = Event().apply {
+            dtStart = DtStart("20220120T010203Z")
+            summary = "Event with 3 instances"
+            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
+        }
+        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
+        localEvent.add()
+        val eventId = localEvent.id!!
+
+        // set event as dirty
+        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
+            put(Events.DIRTY, 1)
+        }, null, null)
+
+        // this method should mark the event as deleted
+        calendar.deleteDirtyEventsWithoutInstances()
+
+        // verify that event is not marked as deleted
+        provider.query(
+            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
+            arrayOf(Events.DELETED), null, null, null
+        )!!.use { cursor ->
+            cursor.moveToNext()
+            assertEquals(0, cursor.getInt(0))
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalGroupTest.kt

@@ -1,9 +1,14 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
 package at.bitfire.davdroid.resource
 
 import android.Manifest
 import android.content.ContentProviderClient
 import android.content.ContentUris
 import android.content.ContentValues
+import android.content.Context
 import android.provider.ContactsContract
 import android.provider.ContactsContract.CommonDataKinds.GroupMembership
 import androidx.test.platform.app.InstrumentationRegistry
@@ -12,53 +17,70 @@ import at.bitfire.vcard4android.BatchOperation
 import at.bitfire.vcard4android.CachedGroupMembership
 import at.bitfire.vcard4android.Contact
 import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
-import org.junit.Assert.*
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.AfterClass
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
 
+@HiltAndroidTest
 class LocalGroupTest {
 
     companion object {
+
         @JvmField
         @ClassRule
         val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
 
         private lateinit var provider: ContentProviderClient
 
-        private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
-        private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
-
         @BeforeClass
         @JvmStatic
         fun connect() {
             val context = InstrumentationRegistry.getInstrumentation().targetContext
             provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
             assertNotNull(provider)
-
-            addressBookGroupsAsCategories = LocalTestAddressBook(context, provider, GroupMethod.CATEGORIES)
-            addressBookGroupsAsVCards = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
         }
 
         @AfterClass
         @JvmStatic
         fun disconnect() {
-            @Suppress("DEPRECATION")
-            provider.release()
+            provider.close()
         }
     }
 
-    private fun newGroup(addressBook: LocalAddressBook = addressBookGroupsAsCategories): LocalGroup =
-        LocalGroup(addressBook,
-            Contact().apply {
-                displayName = "Test Group"
-            }, null, null, 0
-        ).apply {
-            add()
-        }
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var addressbookFactory: LocalTestAddressBook.Factory
 
 
+    private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
+    private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
 
     @Before
-    fun clearContacts() {
+    fun setup() {
+        hiltRule.inject()
+
+        addressBookGroupsAsCategories = addressbookFactory.create(provider, GroupMethod.CATEGORIES)
+        addressBookGroupsAsVCards = addressbookFactory.create(provider, GroupMethod.GROUP_VCARDS)
+
+        // clear contacts
         addressBookGroupsAsCategories.clear()
         addressBookGroupsAsVCards.clear()
     }
@@ -88,7 +110,7 @@ class LocalGroupTest {
         LocalGroup.applyPendingMemberships(ab)
 
         // check group membership
-        ab.provider.query(
+        ab.provider!!.query(
             ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(GroupMembership.GROUP_ROW_ID, GroupMembership.RAW_CONTACT_ID),
             "${GroupMembership.MIMETYPE}=?", arrayOf(GroupMembership.CONTENT_ITEM_TYPE),
             null
@@ -100,7 +122,7 @@ class LocalGroupTest {
             assertFalse(cursor.moveToNext())
         }
         // check cached group membership
-        ab.provider.query(
+        ab.provider!!.query(
             ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
             "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
             null
@@ -134,7 +156,7 @@ class LocalGroupTest {
         LocalGroup.applyPendingMemberships(ab)
 
         // check group membership
-        ab.provider.query(
+        ab.provider!!.query(
             ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(GroupMembership.GROUP_ROW_ID, GroupMembership.RAW_CONTACT_ID),
             "${GroupMembership.MIMETYPE}=?", arrayOf(GroupMembership.CONTENT_ITEM_TYPE),
             null
@@ -142,7 +164,7 @@ class LocalGroupTest {
             assertFalse(cursor.moveToNext())
         }
         // check cached group membership
-        ab.provider.query(
+        ab.provider!!.query(
             ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
             "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
             null
@@ -172,7 +194,7 @@ class LocalGroupTest {
         group.clearDirty(null, null)
 
         // check cached group membership
-        ab.provider.query(
+        ab.provider!!.query(
             ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
             "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
             null
@@ -205,7 +227,7 @@ class LocalGroupTest {
         group.clearDirty(null, null)
 
         // cached group membership should be gone
-        ab.provider.query(
+        ab.provider!!.query(
             ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
             "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
             null
@@ -244,4 +266,16 @@ class LocalGroupTest {
         assertEquals("$newUid.vcf", fileName)
     }
 
+
+    // helpers
+
+    private fun newGroup(addressBook: LocalAddressBook = addressBookGroupsAsCategories): LocalGroup =
+        LocalGroup(addressBook,
+            Contact().apply {
+                displayName = "Test Group"
+            }, null, null, 0
+        ).apply {
+            add()
+        }
+
 }

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalTestAddressBook.kt

@@ -0,0 +1,97 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.resource
+
+import android.accounts.Account
+import android.accounts.AccountManager
+import android.content.ContentProviderClient
+import android.content.ContentUris
+import android.content.Context
+import android.provider.ContactsContract
+import at.bitfire.davdroid.repository.DavCollectionRepository
+import at.bitfire.davdroid.repository.DavServiceRepository
+import at.bitfire.davdroid.settings.AccountSettings
+import at.bitfire.vcard4android.GroupMethod
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
+import dagger.hilt.android.qualifiers.ApplicationContext
+import org.junit.Assert.assertTrue
+import java.io.FileNotFoundException
+import java.util.logging.Logger
+
+class LocalTestAddressBook @AssistedInject constructor(
+    @Assisted provider: ContentProviderClient,
+    @Assisted override val groupMethod: GroupMethod,
+    accountSettingsFactory: AccountSettings.Factory,
+    collectionRepository: DavCollectionRepository,
+    @ApplicationContext context: Context,
+    logger: Logger,
+    serviceRepository: DavServiceRepository
+): LocalAddressBook(ACCOUNT, provider, accountSettingsFactory, collectionRepository, context, logger, serviceRepository) {
+
+    @AssistedFactory
+    interface Factory {
+        fun create(provider: ContentProviderClient, groupMethod: GroupMethod): LocalTestAddressBook
+    }
+
+    override var readOnly: Boolean
+        get() = false
+        set(_) = throw NotImplementedError()
+
+
+    fun clear() {
+        for (contact in queryContacts(null, null))
+            contact.delete()
+        for (group in queryGroups(null, null))
+            group.delete()
+    }
+
+
+    /**
+     * Returns the dirty flag of the given contact.
+     *
+     * @return true if the contact is dirty, false otherwise
+     *
+     * @throws FileNotFoundException if the contact can't be found
+     */
+    fun isContactDirty(id: Long): Boolean {
+        val uri = ContentUris.withAppendedId(rawContactsSyncUri(), id)
+        provider!!.query(uri, arrayOf(ContactsContract.RawContacts.DIRTY), null, null, null)?.use { cursor ->
+            if (cursor.moveToFirst())
+                return cursor.getInt(0) != 0
+        }
+        throw FileNotFoundException()
+    }
+
+    /**
+     * Returns the dirty flag of the given contact group.
+     *
+     * @return true if the group is dirty, false otherwise
+     *
+     * @throws FileNotFoundException if the group can't be found
+     */
+    fun isGroupDirty(id: Long): Boolean {
+        val uri = ContentUris.withAppendedId(groupsSyncUri(), id)
+        provider!!.query(uri, arrayOf(ContactsContract.Groups.DIRTY), null, null, null)?.use { cursor ->
+            if (cursor.moveToFirst())
+                return cursor.getInt(0) != 0
+        }
+        throw FileNotFoundException()
+    }
+
+
+    companion object {
+
+        val ACCOUNT = Account("LocalTestAddressBook", "at.bitfire.davdroid.test")
+
+        fun createAccount(context: Context) {
+            val am = AccountManager.get(context)
+            assertTrue("Couldn't create account for local test address-book", am.addAccountExplicitly(ACCOUNT, null, null))
+        }
+
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/CachedGroupMembershipHandlerTest.kt

@@ -1,8 +1,13 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
 package at.bitfire.davdroid.resource.contactrow
 
 import android.Manifest
 import android.content.ContentProviderClient
 import android.content.ContentValues
+import android.content.Context
 import android.provider.ContactsContract
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.GrantPermissionRule
@@ -11,9 +16,19 @@ import at.bitfire.davdroid.resource.LocalTestAddressBook
 import at.bitfire.vcard4android.CachedGroupMembership
 import at.bitfire.vcard4android.Contact
 import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.AfterClass
 import org.junit.Assert.assertArrayEquals
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
 
+@HiltAndroidTest
 class CachedGroupMembershipHandlerTest {
 
     companion object {
@@ -23,30 +38,43 @@ class CachedGroupMembershipHandlerTest {
         val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
 
         private lateinit var provider: ContentProviderClient
-        private lateinit var addressBook: LocalTestAddressBook
 
         @BeforeClass
         @JvmStatic
         fun connect() {
             val context = InstrumentationRegistry.getInstrumentation().context
             provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-            Assert.assertNotNull(provider)
-
-            addressBook = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
         }
 
         @AfterClass
         @JvmStatic
         fun disconnect() {
-            @Suppress("DEPRECATION")
-            provider.release()
+            provider.close()
         }
 
     }
 
 
+    @Inject
+    lateinit var addressbookFactory: LocalTestAddressBook.Factory
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Before
+    fun inject() {
+        hiltRule.inject()
+    }
+
+
     @Test
     fun testMembership() {
+        val addressBook = addressbookFactory.create(provider, GroupMethod.GROUP_VCARDS)
+
         val contact = Contact()
         val localContact = LocalContact(addressBook, contact, null, null, 0)
         CachedGroupMembershipHandler(localContact).handle(ContentValues().apply {

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/GroupMembershipBuilderTest.kt

@@ -1,7 +1,12 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
 package at.bitfire.davdroid.resource.contactrow
 
 import android.Manifest
 import android.content.ContentProviderClient
+import android.content.Context
 import android.net.Uri
 import android.provider.ContactsContract
 import android.provider.ContactsContract.CommonDataKinds.GroupMembership
@@ -10,38 +15,57 @@ import androidx.test.rule.GrantPermissionRule
 import at.bitfire.davdroid.resource.LocalTestAddressBook
 import at.bitfire.vcard4android.Contact
 import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.AfterClass
 import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
 
+@HiltAndroidTest
 class GroupMembershipBuilderTest {
 
     companion object {
+
         @JvmField
         @ClassRule
         val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
 
         private lateinit var provider: ContentProviderClient
 
-        private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
-        private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
-
         @BeforeClass
         @JvmStatic
         fun connect() {
-            val context = InstrumentationRegistry.getInstrumentation().targetContext
+            val context: Context = InstrumentationRegistry.getInstrumentation().targetContext
             provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-            Assert.assertNotNull(provider)
-
-            addressBookGroupsAsCategories = LocalTestAddressBook(context, provider, GroupMethod.CATEGORIES)
-            addressBookGroupsAsVCards = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
         }
 
         @AfterClass
         @JvmStatic
         fun disconnect() {
-            @Suppress("DEPRECATION")
-            provider.release()
+            provider.close()
         }
+
+    }
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var addressbookFactory: LocalTestAddressBook.Factory
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Before
+    fun inject() {
+        hiltRule.inject()
     }
 
 
@@ -50,7 +74,8 @@ class GroupMembershipBuilderTest {
         val contact = Contact().apply {
             categories += "TEST GROUP"
         }
-        GroupMembershipBuilder(Uri.EMPTY, null, contact, addressBookGroupsAsCategories).build().also { result ->
+        val addressBookGroupsAsCategories = addressbookFactory.create(provider, GroupMethod.CATEGORIES)
+        GroupMembershipBuilder(Uri.EMPTY, null, contact, addressBookGroupsAsCategories, false).build().also { result ->
             assertEquals(1, result.size)
             assertEquals(GroupMembership.CONTENT_ITEM_TYPE, result[0].values[GroupMembership.MIMETYPE])
             assertEquals(addressBookGroupsAsCategories.findOrCreateGroup("TEST GROUP"), result[0].values[GroupMembership.GROUP_ROW_ID])
@@ -62,7 +87,8 @@ class GroupMembershipBuilderTest {
         val contact = Contact().apply {
             categories += "TEST GROUP"
         }
-        GroupMembershipBuilder(Uri.EMPTY, null, contact, addressBookGroupsAsVCards).build().also { result ->
+        val addressBookGroupsAsVCards = addressbookFactory.create(provider, GroupMethod.GROUP_VCARDS)
+        GroupMembershipBuilder(Uri.EMPTY, null, contact, addressBookGroupsAsVCards, false).build().also { result ->
             // group membership is constructed during post-processing
             assertEquals(0, result.size)
         }

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/GroupMembershipHandlerTest.kt

@@ -1,8 +1,13 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
 package at.bitfire.davdroid.resource.contactrow
 
 import android.Manifest
 import android.content.ContentProviderClient
 import android.content.ContentValues
+import android.content.Context
 import android.provider.ContactsContract
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.GrantPermissionRule
@@ -11,44 +16,67 @@ import at.bitfire.davdroid.resource.LocalTestAddressBook
 import at.bitfire.vcard4android.CachedGroupMembership
 import at.bitfire.vcard4android.Contact
 import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.AfterClass
+import org.junit.Assert
 import org.junit.Assert.assertArrayEquals
 import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
 
+@HiltAndroidTest
 class GroupMembershipHandlerTest {
 
-    @JvmField
-    @Rule
-    val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
+    companion object {
 
-    private lateinit var provider: ContentProviderClient
+        @JvmField
+        @ClassRule
+        val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
 
-    private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
-    private var addressBookGroupsAsCategoriesGroup: Long = -1
+        private lateinit var provider: ContentProviderClient
 
-    private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
+        @BeforeClass
+        @JvmStatic
+        fun connect() {
+            val context: Context = InstrumentationRegistry.getInstrumentation().context
+            provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
+            Assert.assertNotNull(provider)
+        }
 
-    @Before
-    fun connect() {
-        val context = InstrumentationRegistry.getInstrumentation().targetContext
-        provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-        Assert.assertNotNull(provider)
+        @AfterClass
+        @JvmStatic
+        fun disconnect() {
+            provider.close()
+        }
 
-        addressBookGroupsAsCategories = LocalTestAddressBook(context, provider, GroupMethod.CATEGORIES)
-        addressBookGroupsAsCategoriesGroup = addressBookGroupsAsCategories.findOrCreateGroup("TEST GROUP")
-
-        addressBookGroupsAsVCards = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
     }
 
-    @After
-    fun disconnect() {
-        @Suppress("DEPRECATION")
-        provider.release()
+    @Inject
+    lateinit var addressbookFactory: LocalTestAddressBook.Factory
+
+    @Inject @ApplicationContext
+    lateinit var context: Context
+
+    @get:Rule
+    var hiltRule = HiltAndroidRule(this)
+
+    @Before
+    fun inject() {
+        hiltRule.inject()
     }
 
 
     @Test
     fun testMembership_GroupsAsCategories() {
+        val addressBookGroupsAsCategories = addressbookFactory.create(provider, GroupMethod.CATEGORIES)
+        val addressBookGroupsAsCategoriesGroup = addressBookGroupsAsCategories.findOrCreateGroup("TEST GROUP")
+
         val contact = Contact()
         val localContact = LocalContact(addressBookGroupsAsCategories, contact, null, null, 0)
         GroupMembershipHandler(localContact).handle(ContentValues().apply {
@@ -62,6 +90,8 @@ class GroupMembershipHandlerTest {
 
     @Test
     fun testMembership_GroupsAsVCards() {
+        val addressBookGroupsAsVCards = addressbookFactory.create(provider, GroupMethod.GROUP_VCARDS)
+
         val contact = Contact()
         val localContact = LocalContact(addressBookGroupsAsVCards, contact, null, null, 0)
         GroupMembershipHandler(localContact).handle(ContentValues().apply {

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/UnknownPropertiesBuilderTest.kt

@@ -1,7 +1,10 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
 package at.bitfire.davdroid.resource.contactrow
 
 import android.net.Uri
-import at.bitfire.davdroid.model.UnknownProperties
 import at.bitfire.vcard4android.Contact
 import org.junit.Assert.assertEquals
 import org.junit.Test
@@ -10,7 +13,7 @@ class UnknownPropertiesBuilderTest {
 
     @Test
     fun testUnknownProperties_None() {
-        UnknownPropertiesBuilder(Uri.EMPTY, null, Contact()).build().also { result ->
+        UnknownPropertiesBuilder(Uri.EMPTY, null, Contact(), false).build().also { result ->
             assertEquals(0, result.size)
         }
     }
@@ -19,7 +22,7 @@ class UnknownPropertiesBuilderTest {
     fun testUnknownProperties_Properties() {
         UnknownPropertiesBuilder(Uri.EMPTY, null, Contact().apply {
             unknownProperties = "X-TEST:12345"
-        }).build().also { result ->
+        }, false).build().also { result ->
             assertEquals(1, result.size)
             assertEquals(UnknownProperties.CONTENT_ITEM_TYPE, result[0].values[UnknownProperties.MIMETYPE])
             assertEquals("X-TEST:12345", result[0].values[UnknownProperties.UNKNOWN_PROPERTIES])

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/UnknownPropertiesHandlerTest.kt

@@ -1,7 +1,10 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
 package at.bitfire.davdroid.resource.contactrow
 
 import android.content.ContentValues
-import at.bitfire.davdroid.model.UnknownProperties
 import at.bitfire.vcard4android.Contact
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertNull

app/src/androidTest/kotlin/at/bitfire/davdroid/servicedetection/CollectionListRefresherTest.kt

@@ -0,0 +1,718 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.servicedetection
+
+import android.content.Context
+import android.security.NetworkSecurityPolicy
+import at.bitfire.davdroid.db.AppDatabase
+import at.bitfire.davdroid.db.Collection
+import at.bitfire.davdroid.db.HomeSet
+import at.bitfire.davdroid.db.Principal
+import at.bitfire.davdroid.db.Service
+import at.bitfire.davdroid.network.HttpClient
+import at.bitfire.davdroid.settings.Settings
+import at.bitfire.davdroid.settings.SettingsManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import io.mockk.every
+import io.mockk.mockkObject
+import okhttp3.mockwebserver.Dispatcher
+import okhttp3.mockwebserver.MockResponse
+import okhttp3.mockwebserver.MockWebServer
+import okhttp3.mockwebserver.RecordedRequest
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Assume
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import java.util.logging.Logger
+import javax.inject.Inject
+
+@HiltAndroidTest
+class CollectionListRefresherTest {
+
+    companion object {
+        private const val PATH_CALDAV = "/caldav"
+        private const val PATH_CARDDAV = "/carddav"
+
+        private const val SUBPATH_PRINCIPAL = "/principal"
+        private const val SUBPATH_PRINCIPAL_INACCESSIBLE = "/inaccessible-principal"
+        private const val SUBPATH_PRINCIPAL_WITHOUT_COLLECTIONS = "/principal2"
+        private const val SUBPATH_ADDRESSBOOK_HOMESET = "/addressbooks-homeset"
+        private const val SUBPATH_ADDRESSBOOK_HOMESET_EMPTY = "/addressbooks-homeset-empty"
+        private const val SUBPATH_ADDRESSBOOK = "/addressbooks/my-contacts"
+        private const val SUBPATH_ADDRESSBOOK_INACCESSIBLE = "/addressbooks/inaccessible-contacts"
+    }
+
+    @get:Rule
+    var hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var db: AppDatabase
+
+    @Inject
+    lateinit var logger: Logger
+
+    @Inject
+    lateinit var refresherFactory: CollectionListRefresher.Factory
+
+    @Inject
+    lateinit var settings: SettingsManager
+
+    private val mockServer = MockWebServer()
+    private lateinit var client: HttpClient
+
+    @Before
+    fun setup() {
+        hiltRule.inject()
+
+        // Start mock web server
+        mockServer.dispatcher = TestDispatcher(logger)
+        mockServer.start()
+
+        client = HttpClient.Builder(context).build()
+
+        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
+    }
+
+    @After
+    fun teardown() {
+        mockServer.shutdown()
+        db.close()
+    }
+
+
+    @Test
+    fun testDiscoverHomesets() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+        val baseUrl = mockServer.url(PATH_CARDDAV + SUBPATH_PRINCIPAL)
+
+        // Query home sets
+        refresherFactory.create(service, client.okHttpClient).discoverHomesets(baseUrl)
+
+        // Check home sets have been saved to database
+        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET/"), db.homeSetDao().getByService(service.id).first().url)
+        assertEquals(1, db.homeSetDao().getByService(service.id).size)
+    }
+
+
+    // refreshHomesetsAndTheirCollections
+
+    @Test
+    fun refreshHomesetsAndTheirCollections_addsNewCollection() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // save homeset in DB
+        val homesetId = db.homeSetDao().insert(
+            HomeSet(id=0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+        )
+
+        // Refresh
+        refresherFactory.create(service, client.okHttpClient).refreshHomesetsAndTheirCollections()
+
+        // Check the collection defined in homeset is now in the database
+        assertEquals(
+            Collection(
+                1,
+                service.id,
+                homesetId,
+                1, // will have gotten an owner too
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+                displayName = "My Contacts",
+                description = "My Contacts Description"
+            ),
+            db.collectionDao().getByService(service.id).first()
+        )
+    }
+
+    @Test
+    fun refreshHomesetsAndTheirCollections_updatesExistingCollection() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // save "old" collection in DB
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+                displayName = "My Contacts",
+                description = "My Contacts Description"
+            )
+        )
+
+        // Refresh
+        refresherFactory.create(service, client.okHttpClient).refreshHomesetsAndTheirCollections()
+
+        // Check the collection got updated
+        assertEquals(
+            Collection(
+                collectionId,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+                displayName = "My Contacts",
+                description = "My Contacts Description"
+            ),
+            db.collectionDao().get(collectionId)
+        )
+    }
+
+    @Test
+    fun refreshHomesetsAndTheirCollections_preservesCollectionFlags() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // save "old" collection in DB - with set flags
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+                displayName = "My Contacts",
+                description = "My Contacts Description",
+                forceReadOnly = true,
+                sync = true
+            )
+        )
+
+        // Refresh
+        refresherFactory.create(service, client.okHttpClient).refreshHomesetsAndTheirCollections()
+
+        // Check the collection got updated
+        assertEquals(
+            Collection(
+                collectionId,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+                displayName = "My Contacts",
+                description = "My Contacts Description",
+                forceReadOnly = true,
+                sync = true
+            ),
+            db.collectionDao().get(collectionId)
+        )
+    }
+
+    @Test
+    fun refreshHomesetsAndTheirCollections_marksRemovedCollectionsAsHomeless() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // save homeset in DB - which is empty (zero address books) on the serverside
+        val homesetId = db.homeSetDao().insert(
+            HomeSet(id=0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET_EMPTY"))
+        )
+
+        // place collection in DB - as part of the homeset
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                homesetId,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+            )
+        )
+
+        // Refresh - should mark collection as homeless, because serverside homeset is empty.
+        refresherFactory.create(service, client.okHttpClient).refreshHomesetsAndTheirCollections()
+
+        // Check the collection, is now marked as homeless
+        assertEquals(null, db.collectionDao().get(collectionId)!!.homeSetId)
+    }
+
+    @Test
+    fun refreshHomesetsAndTheirCollections_addsOwnerUrls() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // save a homeset in DB
+        val homesetId = db.homeSetDao().insert(
+            HomeSet(id=0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+        )
+
+        // place collection in DB - as part of the homeset
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                homesetId, // part of above home set
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+            )
+        )
+
+        // Refresh - homesets and their collections
+        assertEquals(0, db.principalDao().getByService(service.id).size)
+        refresherFactory.create(service, client.okHttpClient).refreshHomesetsAndTheirCollections()
+
+        // Check principal saved and the collection was updated with its reference
+        val principals = db.principalDao().getByService(service.id)
+        assertEquals(1, principals.size)
+        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), principals[0].url)
+        assertEquals(null, principals[0].displayName)
+        assertEquals(
+            principals[0].id,
+            db.collectionDao().get(collectionId)!!.ownerId
+        )
+    }
+
+
+    // refreshHomelessCollections
+
+    @Test
+    fun refreshHomelessCollections_updatesExistingCollection() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // place homeless collection in DB
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+            )
+        )
+
+        // Refresh
+        refresherFactory.create(service, client.okHttpClient).refreshHomelessCollections()
+
+        // Check the collection got updated - with display name and description
+        assertEquals(
+            Collection(
+                collectionId,
+                service.id,
+                null,
+                1, // will have gotten an owner too
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+                displayName = "My Contacts",
+                description = "My Contacts Description"
+            ),
+            db.collectionDao().get(collectionId)
+        )
+    }
+
+    @Test
+    fun refreshHomelessCollections_deletesInaccessibleCollections() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // place homeless collection in DB - it is also inaccessible
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_INACCESSIBLE")
+            )
+        )
+
+        // Refresh - should delete collection
+        refresherFactory.create(service, client.okHttpClient).refreshHomelessCollections()
+
+        // Check the collection got deleted
+        assertEquals(null, db.collectionDao().get(collectionId))
+    }
+
+    @Test
+    fun refreshHomelessCollections_addsOwnerUrls() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // place homeless collection in DB
+        val collectionId = db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                null,
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
+            )
+        )
+
+        // Refresh homeless collections
+        assertEquals(0, db.principalDao().getByService(service.id).size)
+        refresherFactory.create(service, client.okHttpClient).refreshHomelessCollections()
+
+        // Check principal saved and the collection was updated with its reference
+        val principals = db.principalDao().getByService(service.id)
+        assertEquals(1, principals.size)
+        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), principals[0].url)
+        assertEquals(null, principals[0].displayName)
+        assertEquals(
+            principals[0].id,
+            db.collectionDao().get(collectionId)!!.ownerId
+        )
+    }
+
+
+    // refreshPrincipals
+
+    @Test
+    fun refreshPrincipals_inaccessiblePrincipal() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // place principal without display name in db
+        val principalId = db.principalDao().insert(
+            Principal(
+                0,
+                service.id,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL_INACCESSIBLE"), // no trailing slash
+                null // no display name for now
+            )
+        )
+        // add an associated collection - as the principal is rightfully removed otherwise
+        db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                principalId, // create association with principal
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"), // with trailing slash
+            )
+        )
+
+        // Refresh principals
+        refresherFactory.create(service, client.okHttpClient).refreshPrincipals()
+
+        // Check principal was not updated
+        val principals = db.principalDao().getByService(service.id)
+        assertEquals(1, principals.size)
+        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL_INACCESSIBLE"), principals[0].url)
+        assertEquals(null, principals[0].displayName)
+    }
+
+    @Test
+    fun refreshPrincipals_updatesPrincipal() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // place principal without display name in db
+        val principalId = db.principalDao().insert(
+            Principal(
+                0,
+                service.id,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), // no trailing slash
+                null // no display name for now
+            )
+        )
+        // add an associated collection - as the principal is rightfully removed otherwise
+        db.collectionDao().insertOrUpdateByUrl(
+            Collection(
+                0,
+                service.id,
+                null,
+                principalId, // create association with principal
+                Collection.TYPE_ADDRESSBOOK,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"), // with trailing slash
+            )
+        )
+
+        // Refresh principals
+        refresherFactory.create(service, client.okHttpClient).refreshPrincipals()
+
+        // Check principal now got a display name
+        val principals = db.principalDao().getByService(service.id)
+        assertEquals(1, principals.size)
+        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), principals[0].url)
+        assertEquals("Mr. Wobbles", principals[0].displayName)
+    }
+
+    @Test
+    fun refreshPrincipals_deletesPrincipalsWithoutCollections() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        // place principal without collections in DB
+        db.principalDao().insert(
+            Principal(
+                0,
+                service.id,
+                mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL_WITHOUT_COLLECTIONS/")
+            )
+        )
+
+        // Refresh principals - detecting it does not own collections
+        refresherFactory.create(service, client.okHttpClient).refreshPrincipals()
+
+        // Check principal was deleted
+        val principals = db.principalDao().getByService(service.id)
+        assertEquals(0, principals.size)
+    }
+
+    // Others
+
+    @Test
+    fun shouldPreselect_none() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        mockkObject(settings) {
+            every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_NONE
+            every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
+
+            val collection = Collection(
+                0,
+                service.id,
+                0,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+            )
+            val homesets = listOf(
+                HomeSet(0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+            )
+
+            val refresher = refresherFactory.create(service, client.okHttpClient)
+            assertFalse(refresher.shouldPreselect(collection, homesets))
+        }
+    }
+
+    @Test
+    fun shouldPreselect_all() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        mockkObject(settings) {
+            every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_ALL
+            every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
+
+            val collection = Collection(
+                0,
+                service.id,
+                0,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+            )
+            val homesets = listOf(
+                HomeSet(0, service.id, false, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+            )
+
+            val refresher = refresherFactory.create(service, client.okHttpClient)
+            assertTrue(refresher.shouldPreselect(collection, homesets))
+        }
+    }
+
+    @Test
+    fun shouldPreselect_all_blacklisted() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+        val url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+
+        mockkObject(settings) {
+            every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_ALL
+            every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns url.toString()
+
+            val collection = Collection(
+                0,
+                service.id,
+                0,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = url
+            )
+            val homesets = listOf(
+                HomeSet(0, service.id, false, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+            )
+
+            val refresher = refresherFactory.create(service, client.okHttpClient)
+            assertFalse(refresher.shouldPreselect(collection, homesets))
+        }
+    }
+
+    @Test
+    fun shouldPreselect_personal_notPersonal() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        mockkObject(settings) {
+            every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_PERSONAL
+            every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
+
+            val collection = Collection(
+                0,
+                service.id,
+                0,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+            )
+            val homesets = listOf(
+                HomeSet(0, service.id, false, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+            )
+
+            val refresher = refresherFactory.create(service, client.okHttpClient)
+            assertFalse(refresher.shouldPreselect(collection, homesets))
+        }
+    }
+
+    @Test
+    fun shouldPreselect_personal_isPersonal() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+
+        mockkObject(settings) {
+            every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_PERSONAL
+            every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
+
+            val collection = Collection(
+                0,
+                service.id,
+                0,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+            )
+            val homesets = listOf(
+                HomeSet(0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+            )
+
+            val refresher = refresherFactory.create(service, client.okHttpClient)
+            assertTrue(refresher.shouldPreselect(collection, homesets))
+        }
+    }
+
+    @Test
+    fun shouldPreselect_personal_isPersonalButBlacklisted() {
+        val service = createTestService(Service.TYPE_CARDDAV)!!
+        val collectionUrl = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
+
+        mockkObject(settings) {
+            every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_PERSONAL
+            every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns collectionUrl.toString()
+
+            val collection = Collection(
+                0,
+                service.id,
+                0,
+                type = Collection.TYPE_ADDRESSBOOK,
+                url = collectionUrl
+            )
+            val homesets = listOf(
+                HomeSet(0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
+            )
+
+            val refresher = refresherFactory.create(service, client.okHttpClient)
+            assertFalse(refresher.shouldPreselect(collection, homesets))
+        }
+    }
+
+    // Test helpers and dependencies
+    
+    private fun createTestService(serviceType: String) : Service? {
+        val service = Service(id=0, accountName="test", type=serviceType, principal = null)
+        val serviceId = db.serviceDao().insertOrReplace(service)
+        return db.serviceDao().get(serviceId)
+    }
+
+
+    class TestDispatcher(
+        private val logger: Logger
+    ): Dispatcher() {
+
+        override fun dispatch(request: RecordedRequest): MockResponse {
+            val path = request.path!!.trimEnd('/')
+
+            if (request.method.equals("PROPFIND", true)) {
+                val properties = when (path) {
+                    PATH_CALDAV,
+                    PATH_CARDDAV ->
+                        "<current-user-principal>" +
+                        "   <href>$path${SUBPATH_PRINCIPAL}</href>" +
+                        "</current-user-principal>"
+
+                    PATH_CARDDAV + SUBPATH_PRINCIPAL ->
+                        "<resourcetype><principal/></resourcetype>" +
+                        "<displayname>Mr. Wobbles</displayname>" +
+                        "<CARD:addressbook-home-set>" +
+                        "   <href>${PATH_CARDDAV}${SUBPATH_ADDRESSBOOK_HOMESET}</href>" +
+                        "</CARD:addressbook-home-set>"
+
+                    PATH_CARDDAV + SUBPATH_PRINCIPAL_WITHOUT_COLLECTIONS ->
+                        "<CARD:addressbook-home-set>" +
+                        "   <href>${PATH_CARDDAV}${SUBPATH_ADDRESSBOOK_HOMESET_EMPTY}</href>" +
+                        "</CARD:addressbook-home-set>" +
+                        "<displayname>Mr. Wobbles Jr.</displayname>"
+
+                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK,
+                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK_HOMESET ->
+                        "<resourcetype>" +
+                        "   <collection/>" +
+                        "   <CARD:addressbook/>" +
+                        "</resourcetype>" +
+                        "<displayname>My Contacts</displayname>" +
+                        "<CARD:addressbook-description>My Contacts Description</CARD:addressbook-description>" +
+                        "<owner>" +
+                        "   <href>${PATH_CARDDAV + SUBPATH_PRINCIPAL}</href>" +
+                        "</owner>"
+
+                    PATH_CALDAV + SUBPATH_PRINCIPAL ->
+                        "<CAL:calendar-user-address-set>" +
+                        "  <href>urn:unknown-entry</href>" +
+                        "  <href>mailto:email1@example.com</href>" +
+                        "  <href>mailto:email2@example.com</href>" +
+                        "</CAL:calendar-user-address-set>"
+
+                    SUBPATH_ADDRESSBOOK_HOMESET_EMPTY -> ""
+
+                    else -> ""
+                }
+
+                var responseBody = ""
+                var responseCode = 207
+                when (path) {
+                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK_HOMESET ->
+                        responseBody =
+                            "<multistatus xmlns='DAV:' xmlns:CARD='urn:ietf:params:xml:ns:carddav' xmlns:CAL='urn:ietf:params:xml:ns:caldav'>" +
+                            "<response>" +
+                            "   <href>${PATH_CARDDAV + SUBPATH_ADDRESSBOOK}</href>" +
+                            "   <propstat><prop>" +
+                                    properties +
+                            "   </prop></propstat>" +
+                            "   <status>HTTP/1.1 200 OK</status>" +
+                            "</response>" +
+                            "</multistatus>"
+
+                    PATH_CARDDAV + SUBPATH_PRINCIPAL_INACCESSIBLE,
+                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK_INACCESSIBLE ->
+                        responseCode = 404
+
+                    else ->
+                        responseBody =
+                            "<multistatus xmlns='DAV:' xmlns:CARD='urn:ietf:params:xml:ns:carddav' xmlns:CAL='urn:ietf:params:xml:ns:caldav'>" +
+                            "<response>" +
+                            "   <href>$path</href>" +
+                            "   <propstat><prop>"+
+                                    properties +
+                            "   </prop></propstat>" +
+                            "</response>" +
+                            "</multistatus>"
+                }
+
+                logger.info("Queried: $path")
+                logger.info("Response: $responseBody")
+                return MockResponse()
+                    .setResponseCode(responseCode)
+                    .setBody(responseBody)
+            }
+
+            return MockResponse().setResponseCode(404)
+        }
+
+    }
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/servicedetection/DavResourceFinderTest.kt

@@ -1,32 +1,41 @@
 /*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
  */
 
-package at.bitfire.davdroid.ui.setup
+package at.bitfire.davdroid.servicedetection
 
+import android.content.Context
+import android.security.NetworkSecurityPolicy
 import androidx.test.filters.SmallTest
-import androidx.test.platform.app.InstrumentationRegistry
 import at.bitfire.dav4jvm.DavResource
-import at.bitfire.dav4jvm.property.AddressbookHomeSet
-import at.bitfire.dav4jvm.property.ResourceType
-import at.bitfire.davdroid.HttpClient
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.model.Credentials
-import at.bitfire.davdroid.ui.setup.DavResourceFinder.Configuration.ServiceInfo
+import at.bitfire.dav4jvm.property.carddav.AddressbookHomeSet
+import at.bitfire.dav4jvm.property.webdav.ResourceType
+import at.bitfire.davdroid.db.Credentials
+import at.bitfire.davdroid.network.HttpClient
+import at.bitfire.davdroid.servicedetection.DavResourceFinder.Configuration.ServiceInfo
+import at.bitfire.davdroid.settings.SettingsManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
 import okhttp3.mockwebserver.Dispatcher
 import okhttp3.mockwebserver.MockResponse
 import okhttp3.mockwebserver.MockWebServer
 import okhttp3.mockwebserver.RecordedRequest
 import org.junit.After
-import org.junit.Assert.*
+import org.junit.Assert.assertArrayEquals
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Assume
 import org.junit.Before
+import org.junit.Rule
 import org.junit.Test
 import java.net.URI
+import java.util.logging.Logger
+import javax.inject.Inject
 
+@HiltAndroidTest
 class DavResourceFinderTest {
 
     companion object {
@@ -40,29 +49,47 @@ class DavResourceFinderTest {
         private const val SUBPATH_ADDRESSBOOK = "/addressbooks/private-contacts"
     }
 
-    val server = MockWebServer()
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
 
-    lateinit var finder: DavResourceFinder
-    lateinit var client: HttpClient
-    lateinit var loginModel: LoginModel
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var logger: Logger
+
+    @Inject
+    lateinit var resourceFinderFactory: DavResourceFinder.Factory
+
+    @Inject
+    lateinit var settingsManager: SettingsManager
+
+    private val server = MockWebServer()
+
+    private lateinit var finder: DavResourceFinder
+    private lateinit var client: HttpClient
 
     @Before
-    fun initServerAndClient() {
-        server.dispatcher = TestDispatcher()
+    fun setup() {
+        hiltRule.inject()
+
+        server.dispatcher = TestDispatcher(logger)
         server.start()
 
-        loginModel = LoginModel()
-        loginModel.baseURI = URI.create("/")
-        loginModel.credentials = Credentials("mock", "12345")
+        val baseURI = URI.create("/")
+        val credentials = Credentials("mock", "12345")
 
-        finder = DavResourceFinder(InstrumentationRegistry.getInstrumentation().targetContext, loginModel)
-        client = HttpClient.Builder()
-                .addAuthentication(null, loginModel.credentials!!)
+        finder = resourceFinderFactory.create(baseURI, credentials)
+        client = HttpClient.Builder(context)
+                .addAuthentication(null, credentials)
                 .build()
+
+        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
     }
 
     @After
-    fun stopServer() {
+    fun teardown() {
         server.shutdown()
     }
 
@@ -74,7 +101,7 @@ class DavResourceFinderTest {
         var info = ServiceInfo()
         DavResource(client.okHttpClient, server.url(PATH_CARDDAV + SUBPATH_PRINCIPAL))
                 .propfind(0, AddressbookHomeSet.NAME) { response, _ ->
-            finder.scanCardDavResponse(response, info)
+            finder.scanResponse(ResourceType.ADDRESSBOOK, response, info)
         }
         assertEquals(0, info.collections.size)
         assertEquals(1, info.homeSets.size)
@@ -84,7 +111,7 @@ class DavResourceFinderTest {
         info = ServiceInfo()
         DavResource(client.okHttpClient, server.url(PATH_CARDDAV + SUBPATH_ADDRESSBOOK))
                 .propfind(0, ResourceType.NAME) { response, _ ->
-            finder.scanCardDavResponse(response, info)
+            finder.scanResponse(ResourceType.ADDRESSBOOK, response, info)
         }
         assertEquals(1, info.collections.size)
         assertEquals(server.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"), info.collections.keys.first())
@@ -137,7 +164,9 @@ class DavResourceFinderTest {
 
     // mock server
 
-    class TestDispatcher: Dispatcher() {
+    class TestDispatcher(
+        private val logger: Logger
+    ): Dispatcher() {
 
         override fun dispatch(request: RecordedRequest): MockResponse {
             if (!checkAuth(request)) {
@@ -186,7 +215,7 @@ class DavResourceFinderTest {
 
                     else -> props = null
                 }
-                Logger.log.info("Sending props: $props")
+                logger.info("Sending props: $props")
                 return MockResponse()
                         .setResponseCode(207)
                         .setBody("<multistatus xmlns='DAV:' xmlns:CARD='urn:ietf:params:xml:ns:carddav' xmlns:CAL='urn:ietf:params:xml:ns:caldav'>" +

app/src/androidTest/kotlin/at/bitfire/davdroid/settings/SettingsManagerTest.kt

@@ -0,0 +1,93 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.settings
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.take
+import kotlinx.coroutines.flow.toSet
+import kotlinx.coroutines.runBlocking
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class SettingsManagerTest {
+
+    companion object {
+        /** Use this setting to test SettingsManager methods. Will be removed after every test run. */
+        const val SETTING_TEST = "test"
+    }
+
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+    @get:Rule
+    val instantTaskExecutorRule = InstantTaskExecutorRule()
+
+    @Inject lateinit var settingsManager: SettingsManager
+
+    @Before
+    fun inject() {
+        hiltRule.inject()
+    }
+
+    @After
+    fun removeTestSetting() {
+        settingsManager.remove(SETTING_TEST)
+    }
+
+
+    @Test
+    fun test_containsKey_NotExisting() {
+        assertFalse(settingsManager.containsKey("notExisting"))
+    }
+
+    @Test
+    fun test_containsKey_Existing() {
+        // provided by DefaultsProvider
+        assertEquals(Settings.PROXY_TYPE_SYSTEM, settingsManager.getInt(Settings.PROXY_TYPE))
+    }
+
+
+    @Test
+    fun test_observerFlow_initialValue() = runBlocking {
+        var counter = 0
+        val live = settingsManager.observerFlow {
+            if (counter++ == 0)
+                23
+            else
+                throw AssertionError("A second value was requested")
+        }
+        assertEquals(23, live.first())
+    }
+
+    @Test
+    fun test_observerFlow_updatedValue() = runBlocking {
+        var counter = 0
+        val live = settingsManager.observerFlow {
+            when (counter++) {
+                0 -> {
+                    // update some setting so that we will be called a second time
+                    settingsManager.putBoolean(SETTING_TEST, true)
+                    // and emit initial value
+                    23
+                }
+                1 -> 42     // updated value
+                else -> throw AssertionError()
+            }
+        }
+
+        val result = live.take(2).toSet()
+        assertEquals(setOf(23, 42), result)
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/LocalTestCollection.kt

@@ -1,9 +1,15 @@
-package at.bitfire.davdroid.syncadapter
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
 
-import at.bitfire.davdroid.model.SyncState
+package at.bitfire.davdroid.sync
+
+import at.bitfire.davdroid.db.SyncState
 import at.bitfire.davdroid.resource.LocalCollection
 
-class LocalTestCollection: LocalCollection<LocalTestResource> {
+class LocalTestCollection(
+    override val collectionUrl: String = "http://example.com/test/"
+): LocalCollection<LocalTestResource> {
 
     override val tag = "LocalTestCollection"
     override val title = "Local Test Collection"
@@ -12,10 +18,15 @@ class LocalTestCollection: LocalCollection<LocalTestResource> {
 
     val entries = mutableListOf<LocalTestResource>()
 
+    override val readOnly: Boolean
+        get() = throw NotImplementedError()
+
+    override fun deleteCollection(): Boolean = true
+
     override fun findDeleted() = entries.filter { it.deleted }
     override fun findDirty() = entries.filter { it.dirty }
 
-    override fun findByName(name: String) = entries.filter { it.fileName == name }.firstOrNull()
+    override fun findByName(name: String) = entries.firstOrNull { it.fileName == name }
 
     override fun markNotDirty(flags: Int): Int {
         var updated = 0

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/LocalTestResource.kt

@@ -1,4 +1,8 @@
-package at.bitfire.davdroid.syncadapter
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync
 
 import at.bitfire.davdroid.resource.LocalResource
 
@@ -30,5 +34,6 @@ class LocalTestResource: LocalResource<Any> {
     override fun add() = throw NotImplementedError()
     override fun update(data: Any) = throw NotImplementedError()
     override fun delete() = throw NotImplementedError()
+    override fun resetDeleted() = throw NotImplementedError()
 
 }

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/SyncAdapterServicesTest.kt

@@ -0,0 +1,192 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync
+
+import android.accounts.Account
+import android.content.Context
+import android.content.SyncResult
+import android.os.Bundle
+import android.provider.CalendarContract
+import android.util.Log
+import androidx.hilt.work.HiltWorkerFactory
+import androidx.work.Configuration
+import androidx.work.WorkInfo
+import androidx.work.WorkManager
+import androidx.work.testing.WorkManagerTestInitHelper
+import at.bitfire.davdroid.repository.DavCollectionRepository
+import at.bitfire.davdroid.repository.DavServiceRepository
+import at.bitfire.davdroid.settings.AccountSettings
+import at.bitfire.davdroid.sync.account.TestAccountAuthenticator
+import at.bitfire.davdroid.sync.worker.SyncWorkerManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import io.mockk.Awaits
+import io.mockk.coEvery
+import io.mockk.every
+import io.mockk.just
+import io.mockk.mockk
+import io.mockk.mockkObject
+import io.mockk.mockkStatic
+import io.mockk.unmockkAll
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.withTimeout
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.Timeout
+import java.util.concurrent.Executors
+import java.util.logging.Logger
+import javax.inject.Inject
+import kotlin.coroutines.cancellation.CancellationException
+
+@HiltAndroidTest
+class SyncAdapterServicesTest {
+
+    lateinit var account: Account
+
+    @Inject
+    lateinit var accountSettingsFactory: AccountSettings.Factory
+
+    @Inject
+    lateinit var collectionRepository: DavCollectionRepository
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var logger: Logger
+
+    @Inject
+    lateinit var serviceRepository: DavServiceRepository
+
+    @Inject
+    lateinit var syncConditionsFactory: SyncConditions.Factory
+
+    @Inject
+    lateinit var workerFactory: HiltWorkerFactory
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    // test methods should run quickly and not wait 60 seconds for a sync timeout or something like that
+    @get:Rule
+    val timeoutRule: Timeout = Timeout.seconds(5)
+
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+
+        account = TestAccountAuthenticator.create()
+
+        // Initialize WorkManager for instrumentation tests.
+        val config = Configuration.Builder()
+            .setMinimumLoggingLevel(Log.DEBUG)
+            .setWorkerFactory(workerFactory)
+            .build()
+        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
+    }
+
+    @After
+    fun tearDown() {
+        TestAccountAuthenticator.remove(account)
+        unmockkAll()
+    }
+
+
+    private fun syncAdapter(
+        syncWorkerManager: SyncWorkerManager
+    ): SyncAdapterService.SyncAdapter =
+        SyncAdapterService.SyncAdapter(
+            accountSettingsFactory = accountSettingsFactory,
+            collectionRepository = collectionRepository,
+            serviceRepository = serviceRepository,
+            context = context,
+            logger = logger,
+            syncConditionsFactory = syncConditionsFactory,
+            syncWorkerManager = syncWorkerManager
+        )
+
+
+    @Test
+    fun testSyncAdapter_onPerformSync_cancellation() {
+        val syncWorkerManager = mockk<SyncWorkerManager>()
+        val syncAdapter = syncAdapter(syncWorkerManager = syncWorkerManager)
+        val workManager = WorkManager.getInstance(context)
+
+        mockkObject(workManager) {
+            // don't actually create a worker
+            every { syncWorkerManager.enqueueOneTime(any(), any()) } returns "TheSyncWorker"
+
+            // assume worker takes a long time
+            every { workManager.getWorkInfosForUniqueWorkFlow("TheSyncWorker") } just Awaits
+
+            runBlocking {
+                val sync = launch {
+                    syncAdapter.onPerformSync(account, Bundle(), CalendarContract.AUTHORITY, mockk(), SyncResult())
+                }
+
+                // simulate incoming cancellation from sync framework
+                syncAdapter.onSyncCanceled()
+
+                // wait for sync to finish (should happen immediately)
+                sync.join()
+            }
+        }
+    }
+
+    @Test
+    fun testSyncAdapter_onPerformSync_returnsAfterTimeout() {
+        val syncWorkerManager = mockk<SyncWorkerManager>()
+        val syncAdapter = syncAdapter(syncWorkerManager = syncWorkerManager)
+        val workManager = WorkManager.getInstance(context)
+
+        mockkObject(workManager) {
+            // don't actually create a worker
+            every { syncWorkerManager.enqueueOneTime(any(), any()) } returns "TheSyncWorker"
+
+            // assume worker takes a long time
+            every { workManager.getWorkInfosForUniqueWorkFlow("TheSyncWorker") } just Awaits
+
+            mockkStatic("kotlinx.coroutines.TimeoutKt") {   // mock global extension function
+                // immediate timeout (instead of really waiting)
+                coEvery { withTimeout(any<Long>(), any<suspend CoroutineScope.() -> Unit>()) } throws CancellationException("Simulated timeout")
+
+                syncAdapter.onPerformSync(account, Bundle(), CalendarContract.AUTHORITY, mockk(), SyncResult())
+            }
+        }
+    }
+
+    @Test
+    fun testSyncAdapter_onPerformSync_runsInTime() {
+        val syncWorkerManager = mockk<SyncWorkerManager>()
+        val syncAdapter = syncAdapter(syncWorkerManager = syncWorkerManager)
+        val workManager = WorkManager.getInstance(context)
+
+        mockkObject(workManager) {
+            // don't actually create a worker
+            every { syncWorkerManager.enqueueOneTime(any(), any()) } returns "TheSyncWorker"
+
+            // assume worker immediately returns with success
+            val success = mockk<WorkInfo>()
+            every { success.state } returns WorkInfo.State.SUCCEEDED
+            every { workManager.getWorkInfosForUniqueWorkFlow("TheSyncWorker") } returns flow {
+                emit(listOf(success))
+                delay(60000)    // keep the flow active
+            }
+
+            // should just run
+            syncAdapter.onPerformSync(account, Bundle(), CalendarContract.AUTHORITY, mockk(), SyncResult())
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/SyncManagerTest.kt

@@ -1,95 +1,170 @@
-package at.bitfire.davdroid.syncadapter
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync
 
 import android.accounts.Account
-import android.accounts.AccountManager
-import android.content.SyncResult
-import android.os.Bundle
+import android.content.Context
+import android.util.Log
 import androidx.core.app.NotificationManagerCompat
-import androidx.test.platform.app.InstrumentationRegistry
+import androidx.hilt.work.HiltWorkerFactory
+import androidx.work.Configuration
+import androidx.work.testing.WorkManagerTestInitHelper
 import at.bitfire.dav4jvm.PropStat
 import at.bitfire.dav4jvm.Response
 import at.bitfire.dav4jvm.Response.HrefRelation
-import at.bitfire.dav4jvm.property.GetETag
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.model.Credentials
-import at.bitfire.davdroid.model.SyncState
+import at.bitfire.dav4jvm.property.webdav.GetETag
+import at.bitfire.davdroid.TestUtils.assertWithin
+import at.bitfire.davdroid.db.Collection
+import at.bitfire.davdroid.db.SyncState
+import at.bitfire.davdroid.network.HttpClient
+import at.bitfire.davdroid.repository.DavSyncStatsRepository
 import at.bitfire.davdroid.settings.AccountSettings
+import at.bitfire.davdroid.sync.account.TestAccountAuthenticator
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import dagger.hilt.components.SingletonComponent
+import io.mockk.every
+import io.mockk.mockk
 import okhttp3.Protocol
 import okhttp3.internal.http.StatusLine
 import okhttp3.mockwebserver.MockResponse
 import okhttp3.mockwebserver.MockWebServer
-import org.junit.*
-import org.junit.Assert.*
-import java.util.concurrent.TimeUnit
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import java.time.Instant
+import javax.inject.Inject
 
+@HiltAndroidTest
 class SyncManagerTest {
 
-    companion object {
-
-        val context = InstrumentationRegistry.getInstrumentation().targetContext
-        val account = Account("SyncManagerTest", context.getString(R.string.account_type))
-
-        @BeforeClass
-        @JvmStatic
-        fun createAccount() {
-            assertTrue(AccountManager.get(context).addAccountExplicitly(account, "test", AccountSettings.initialUserData(Credentials("test", "test"))))
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun removeAccount() {
-            assertTrue(AccountManager.get(context).removeAccount(account, null, null).getResult(10, TimeUnit.SECONDS))
-
-            // clear annoying syncError notifications
-            NotificationManagerCompat.from(context).cancelAll()
-        }
-
+    @Module
+    @InstallIn(SingletonComponent::class)
+    object SyncManagerTestModule {
+        @Provides
+        fun davSyncStatsRepository(): DavSyncStatsRepository = mockk<DavSyncStatsRepository>(relaxed = true)
     }
 
-    val server = MockWebServer()
 
-    private fun syncManager(collection: LocalTestCollection) =
-            TestSyncManager(
-                    context,
-                    account,
-                    Bundle(),
-                    "TestAuthority",
-                    SyncResult(),
-                    collection,
-                    server
-            )
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var accountSettingsFactory: AccountSettings.Factory
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var syncManagerFactory: TestSyncManager.Factory
+
+    @Inject
+    lateinit var workerFactory: HiltWorkerFactory
+
+    lateinit var account: Account
+    private val server = MockWebServer()
 
     @Before
-    fun startServer() {
+    fun setUp() {
+        hiltRule.inject()
+
+        // Initialize WorkManager for instrumentation tests.
+        val config = Configuration.Builder()
+            .setMinimumLoggingLevel(Log.DEBUG)
+            .setWorkerFactory(workerFactory)
+            .build()
+        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
+
+        account = TestAccountAuthenticator.create()
+
         server.start()
     }
 
     @After
-    fun stopServer() {
+    fun tearDown() {
+        TestAccountAuthenticator.remove(account)
+
+        // clear annoying syncError notifications
+        NotificationManagerCompat.from(context).cancelAll()
+
         server.close()
     }
 
 
+    @Test
+    fun testGetDelayUntil_defaultOnNull() {
+        val now = Instant.now()
+        val delayUntil = SyncManager.getDelayUntil(null).epochSecond
+        val default = now.plusSeconds(SyncManager.DELAY_UNTIL_DEFAULT).epochSecond
+        assertWithin(default, delayUntil, 5)
+    }
+
+    @Test
+    fun testGetDelayUntil_reducesToMax() {
+        val now = Instant.now()
+        val delayUntil = SyncManager.getDelayUntil(now.plusSeconds(10*24*60*60)).epochSecond
+        val max = now.plusSeconds(SyncManager.DELAY_UNTIL_MAX).epochSecond
+        assertWithin(max, delayUntil, 5)
+    }
+
+    @Test
+    fun testGetDelayUntil_increasesToMin() {
+        val delayUntil = SyncManager.getDelayUntil(Instant.EPOCH).epochSecond
+        val min = Instant.now().plusSeconds(SyncManager.DELAY_UNTIL_MIN).epochSecond
+        assertWithin(min, delayUntil, 5)
+    }
+
+
     private fun queryCapabilitiesResponse(cTag: String? = null): MockResponse {
         val body = StringBuilder()
-        body.append("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n" +
-                "<multistatus xmlns=\"DAV:\" xmlns:CALDAV=\"http://calendarserver.org/ns/\">\n" +
-                "  <response>\n" +
-                "    <href>/</href>\n" +
-                "    <propstat>\n" +
-                "      <prop>\n")
-        if (cTag != null)
-                body.append("<CALDAV:getctag>$cTag</CALDAV:getctag>\n")
         body.append(
-                "      </prop>\n" +
-                "    </propstat>\n" +
-                "  </response>\n" +
-                "</multistatus>")
-        val response = MockResponse()
-                .setResponseCode(207)
-                .setHeader("Content-Type", "text/xml")
-                .setBody(body.toString())
-        return response
+            "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n" +
+                    "<multistatus xmlns=\"DAV:\" xmlns:CALDAV=\"http://calendarserver.org/ns/\">\n" +
+                    "  <response>\n" +
+                    "    <href>/</href>\n" +
+                    "    <propstat>\n" +
+                    "      <prop>\n"
+        )
+        if (cTag != null)
+            body.append("<CALDAV:getctag>$cTag</CALDAV:getctag>\n")
+        body.append(
+            "      </prop>\n" +
+                    "    </propstat>\n" +
+                    "  </response>\n" +
+                    "</multistatus>"
+        )
+        return MockResponse()
+            .setResponseCode(207)
+            .setHeader("Content-Type", "text/xml")
+            .setBody(body.toString())
+    }
+
+    @Test
+    fun testPerformSync_503RetryAfter_DelaySeconds() {
+        server.enqueue(MockResponse()
+            .setResponseCode(503)
+            .setHeader("Retry-After", "60"))    // 60 seconds
+
+        val result = SyncResult()
+        val syncManager = syncManager(LocalTestCollection(), result)
+        syncManager.performSync()
+
+        val expected = Instant.now()
+            .plusSeconds(60)
+            .toEpochMilli()
+        // 5 sec tolerance for test
+        assertWithin(expected, result.delayUntil*1000, 5000)
     }
 
     @Test
@@ -434,4 +509,25 @@ class SyncManagerTest {
         assertTrue(collection.entries.isEmpty())
     }
 
+
+    // helpers
+
+    private fun syncManager(
+        localCollection: LocalTestCollection,
+        syncResult: SyncResult = SyncResult(),
+        collection: Collection = mockk<Collection>() {
+            every { id } returns 1
+            every { url } returns server.url("/")
+        }
+    ) = syncManagerFactory.create(
+        account,
+        accountSettingsFactory.create(account),
+        arrayOf(),
+        "TestAuthority",
+        HttpClient.Builder(context).build(),
+        syncResult,
+        localCollection,
+        collection
+    )
+
 }

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/SyncerTest.kt

@@ -0,0 +1,206 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync
+
+import android.accounts.Account
+import android.content.ContentProviderClient
+import at.bitfire.davdroid.db.Collection
+import at.bitfire.davdroid.sync.account.TestAccountAuthenticator
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.spyk
+import io.mockk.verify
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import org.junit.After
+import org.junit.Assert.assertArrayEquals
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class SyncerTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var testSyncer: TestSyncer.Factory
+
+    lateinit var account: Account
+
+    private lateinit var syncer: TestSyncer
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+
+        account = TestAccountAuthenticator.create()
+        syncer = spyk(testSyncer.create(account, emptyArray(), SyncResult()))
+    }
+
+    @After
+    fun tearDown() {
+        TestAccountAuthenticator.remove(account)
+    }
+
+
+    @Test
+    fun testSync_prepare_fails() {
+        val provider = mockk<ContentProviderClient>()
+        every { syncer.prepare(provider) } returns false
+        every { syncer.getSyncEnabledCollections() } returns emptyMap()
+
+        // Should stop the sync after prepare returns false
+        syncer.sync(provider)
+        verify(exactly = 1) { syncer.prepare(provider) }
+        verify(exactly = 0) { syncer.getSyncEnabledCollections() }
+    }
+
+    @Test
+    fun testSync_prepare_succeeds() {
+        val provider = mockk<ContentProviderClient>()
+        every { syncer.prepare(provider) } returns true
+        every { syncer.getSyncEnabledCollections() } returns emptyMap()
+
+        // Should continue the sync after prepare returns true
+        syncer.sync(provider)
+        verify(exactly = 1) { syncer.prepare(provider) }
+        verify(exactly = 1) { syncer.getSyncEnabledCollections() }
+    }
+
+
+    @Test
+    fun testUpdateCollections_deletesCollection() {
+        val localCollection = mockk<LocalTestCollection>()
+        every { localCollection.collectionUrl } returns "http://delete.the/collection"
+        every { localCollection.deleteCollection() } returns true
+        every { localCollection.title } returns "Collection to be deleted locally"
+
+        // Should delete the localCollection if dbCollection (remote) does not exist
+        val localCollections = mutableListOf(localCollection)
+        val result = syncer.updateCollections(mockk(), localCollections, emptyMap())
+        verify(exactly = 1) { localCollection.deleteCollection() }
+
+        // Updated local collection list should be empty
+        assertTrue(result.isEmpty())
+    }
+
+    @Test
+    fun testUpdateCollections_updatesCollection() {
+        val localCollection = mockk<LocalTestCollection>()
+        val dbCollection = mockk<Collection>()
+        val dbCollections = mapOf("http://update.the/collection".toHttpUrl() to dbCollection)
+        every { dbCollection.url } returns "http://update.the/collection".toHttpUrl()
+        every { localCollection.collectionUrl } returns "http://update.the/collection"
+        every { localCollection.title } returns "The Local Collection"
+
+        // Should update the localCollection if it exists
+        val result = syncer.updateCollections(mockk(), listOf(localCollection), dbCollections)
+        verify(exactly = 1) { syncer.update(localCollection, dbCollection) }
+
+        // Updated local collection list should be same as input
+        assertArrayEquals(arrayOf(localCollection), result.toTypedArray())
+    }
+
+    @Test
+    fun testUpdateCollections_findsNewCollection() {
+        val dbCollection = mockk<Collection>()
+        every { dbCollection.url } returns "http://newly.found/collection".toHttpUrl()
+        val dbCollections = mapOf(dbCollection.url to dbCollection)
+
+        // Should return the new collection, because it was not updated
+        val result = syncer.updateCollections(mockk(), emptyList(), dbCollections)
+
+        // Updated local collection list contain new entry
+        assertEquals(1, result.size)
+        assertEquals(dbCollection.url.toString(), result[0].collectionUrl)
+    }
+
+
+    @Test
+    fun testCreateLocalCollections() {
+        val provider = mockk<ContentProviderClient>()
+        val localCollection = mockk<LocalTestCollection>()
+        val dbCollection = mockk<Collection>()
+        every { syncer.create(provider, dbCollection) } returns localCollection
+        every { dbCollection.url } returns "http://newly.found/collection".toHttpUrl()
+
+        // Should return list of newly created local collections
+        val result = syncer.createLocalCollections(provider, listOf(dbCollection))
+        assertEquals(listOf(localCollection), result)
+    }
+
+    
+    @Test
+    fun testSyncCollectionContents() {
+        val provider = mockk<ContentProviderClient>()
+        val dbCollection1 = mockk<Collection>()
+        val dbCollection2 = mockk<Collection>()
+        val dbCollections = mapOf(
+            "http://newly.found/collection1".toHttpUrl() to dbCollection1,
+            "http://newly.found/collection2".toHttpUrl() to dbCollection2
+        )
+        val localCollection1 = mockk<LocalTestCollection>()
+        val localCollection2 = mockk<LocalTestCollection>()
+        val localCollections = listOf(localCollection1, localCollection2)
+        every { localCollection1.collectionUrl } returns "http://newly.found/collection1"
+        every { localCollection2.collectionUrl } returns "http://newly.found/collection2"
+
+        // Should call the collection content sync on both collections
+        syncer.syncCollectionContents(provider, localCollections, dbCollections)
+        verify(exactly = 1) { syncer.syncCollection(provider, localCollection1, dbCollection1) }
+        verify(exactly = 1) { syncer.syncCollection(provider, localCollection2, dbCollection2) }
+    }
+    
+
+    // Test helpers
+
+    class TestSyncer @AssistedInject constructor(
+        @Assisted account: Account,
+        @Assisted extras: Array<String>,
+        @Assisted syncResult: SyncResult
+    ) : Syncer<LocalTestCollection>(account, extras, syncResult) {
+
+        @AssistedFactory
+        interface Factory {
+            fun create(account: Account, extras: Array<String>, syncResult: SyncResult): TestSyncer
+        }
+
+        override val authority: String
+            get() = ""
+        override val serviceType: String
+            get() = ""
+
+        override fun prepare(provider: ContentProviderClient): Boolean =
+            true
+
+        override fun getLocalCollections(provider: ContentProviderClient): List<LocalTestCollection> =
+            emptyList()
+
+        override fun getDbSyncCollections(serviceId: Long): List<Collection> =
+            emptyList()
+
+        override fun create(provider: ContentProviderClient, remoteCollection: Collection): LocalTestCollection =
+            LocalTestCollection(remoteCollection.url.toString())
+
+        override fun syncCollection(
+            provider: ContentProviderClient,
+            localCollection: LocalTestCollection,
+            remoteCollection: Collection
+        ) {}
+
+        override fun update(localCollection: LocalTestCollection, remoteCollection: Collection) {}
+
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/TestSyncManager.kt

@@ -1,36 +1,64 @@
-package at.bitfire.davdroid.syncadapter
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync
 
 import android.accounts.Account
-import android.content.Context
-import android.content.SyncResult
-import android.os.Bundle
 import at.bitfire.dav4jvm.DavCollection
-import at.bitfire.dav4jvm.DavResponseCallback
+import at.bitfire.dav4jvm.MultiResponseCallback
 import at.bitfire.dav4jvm.Response
-import at.bitfire.dav4jvm.property.GetCTag
-import at.bitfire.davdroid.DavUtils
-import at.bitfire.davdroid.model.SyncState
+import at.bitfire.dav4jvm.property.caldav.GetCTag
+import at.bitfire.davdroid.db.Collection
+import at.bitfire.davdroid.db.SyncState
+import at.bitfire.davdroid.network.HttpClient
 import at.bitfire.davdroid.resource.LocalResource
 import at.bitfire.davdroid.settings.AccountSettings
+import at.bitfire.davdroid.util.DavUtils.lastSegment
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
 import okhttp3.HttpUrl
 import okhttp3.RequestBody
 import okhttp3.RequestBody.Companion.toRequestBody
-import okhttp3.mockwebserver.MockWebServer
 import org.junit.Assert.assertEquals
 
-class TestSyncManager(
-        context: Context,
-        account: Account,
-        extras: Bundle,
-        authority: String,
-        syncResult: SyncResult,
-        localCollection: LocalTestCollection,
-        val mockWebServer: MockWebServer
-): SyncManager<LocalTestResource, LocalTestCollection, DavCollection>(context, account, AccountSettings(context, account), extras, authority, syncResult, localCollection) {
+class TestSyncManager @AssistedInject constructor(
+    @Assisted account: Account,
+    @Assisted accountSettings: AccountSettings,
+    @Assisted extras: Array<String>,
+    @Assisted authority: String,
+    @Assisted httpClient: HttpClient,
+    @Assisted syncResult: SyncResult,
+    @Assisted localCollection: LocalTestCollection,
+    @Assisted collection: Collection
+): SyncManager<LocalTestResource, LocalTestCollection, DavCollection>(
+    account,
+    accountSettings,
+    httpClient,
+    extras,
+    authority,
+    syncResult,
+    localCollection,
+    collection
+) {
+
+    @AssistedFactory
+    interface Factory {
+        fun create(
+            account: Account,
+            accountSettings: AccountSettings,
+            extras: Array<String>,
+            authority: String,
+            httpClient: HttpClient,
+            syncResult: SyncResult,
+            localCollection: LocalTestCollection,
+            collection: Collection
+        ): TestSyncManager
+    }
 
     override fun prepare(): Boolean {
-        collectionURL = mockWebServer.url("/")
-        davCollection = DavCollection(httpClient.okHttpClient, collectionURL)
+        davCollection = DavCollection(httpClient.okHttpClient, collection.url)
         return true
     }
 
@@ -61,12 +89,12 @@ class TestSyncManager(
 
     var listAllRemoteResult = emptyList<Pair<Response, Response.HrefRelation>>()
     var didListAllRemote = false
-    override fun listAllRemote(callback: DavResponseCallback) {
+    override fun listAllRemote(callback: MultiResponseCallback) {
         if (didListAllRemote)
             throw IllegalStateException("listAllRemote() must not be called twice")
         didListAllRemote = true
         for (result in listAllRemoteResult)
-            callback(result.first, result.second)
+            callback.onResponse(result.first, result.second)
     }
 
     var assertDownloadRemote = emptyMap<HttpUrl, String>()
@@ -76,8 +104,8 @@ class TestSyncManager(
         assertEquals(assertDownloadRemote.keys.toList(), bunch)
 
         for ((url, eTag) in assertDownloadRemote) {
-            val fileName = DavUtils.lastSegmentOfUrl(url)
-            var localEntry = localCollection.entries.filter { it.fileName == fileName }.firstOrNull()
+            val fileName = url.lastSegment
+            var localEntry = localCollection.entries.firstOrNull { it.fileName == fileName }
             if (localEntry == null) {
                 val newEntry = LocalTestResource().also {
                     it.fileName = fileName

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/account/AccountUtilsTest.kt

@@ -0,0 +1,67 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync.account
+
+import android.accounts.Account
+import android.accounts.AccountManager
+import android.content.Context
+import android.os.Bundle
+import androidx.test.platform.app.InstrumentationRegistry
+import at.bitfire.davdroid.settings.SettingsManager
+import at.bitfire.davdroid.test.R
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class AccountUtilsTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+    val testContext = InstrumentationRegistry.getInstrumentation().context
+
+    @Inject
+    lateinit var settingsManager: SettingsManager
+
+    val account = Account(
+        "AccountUtilsTest",
+        testContext.getString(R.string.account_type_test)
+    )
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+    }
+
+
+    @Test
+    fun testCreateAccount() {
+        val userData = Bundle(2)
+        userData.putString("int", "1")
+        userData.putString("string", "abc/\"-")
+
+        val manager = AccountManager.get(context)
+        try {
+            assertTrue(SystemAccountUtils.createAccount(context, account, userData))
+
+            // validate user data
+            assertEquals("1", manager.getUserData(account, "int"))
+            assertEquals("abc/\"-", manager.getUserData(account, "string"))
+        } finally {
+            assertTrue(manager.removeAccountExplicitly(account))
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/account/AccountsCleanupWorkerTest.kt

@@ -0,0 +1,152 @@
+package at.bitfire.davdroid.sync.account
+
+import android.accounts.Account
+import android.accounts.AccountManager
+import android.content.Context
+import android.os.Bundle
+import android.util.Log
+import androidx.hilt.work.HiltWorkerFactory
+import androidx.work.Configuration
+import androidx.work.WorkerFactory
+import androidx.work.WorkerParameters
+import androidx.work.testing.TestListenableWorkerBuilder
+import androidx.work.testing.WorkManagerTestInitHelper
+import at.bitfire.davdroid.R
+import at.bitfire.davdroid.db.AppDatabase
+import at.bitfire.davdroid.db.Collection
+import at.bitfire.davdroid.db.Service
+import at.bitfire.davdroid.resource.LocalAddressBook.Companion.USER_DATA_COLLECTION_ID
+import at.bitfire.davdroid.settings.SettingsManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class AccountsCleanupWorkerTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var accountsCleanupWorkerFactory: AccountsCleanupWorker.Factory
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var db: AppDatabase
+
+    @Inject
+    lateinit var settingsManager: SettingsManager
+
+    @Inject
+    lateinit var workerFactory: HiltWorkerFactory
+
+    lateinit var accountManager: AccountManager
+    lateinit var addressBookAccountType: String
+    lateinit var addressBookAccount: Account
+    lateinit var service: Service
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+
+        service = createTestService(Service.TYPE_CARDDAV)
+
+        // Prepare test account
+        accountManager = AccountManager.get(context)
+        addressBookAccountType = context.getString(R.string.account_type_address_book)
+        addressBookAccount = Account(
+            "Fancy address book account",
+            addressBookAccountType
+        )
+
+        // Initialize WorkManager for instrumentation tests.
+        val config = Configuration.Builder()
+            .setMinimumLoggingLevel(Log.DEBUG)
+            .setWorkerFactory(workerFactory)
+            .build()
+        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
+    }
+
+    @After
+    fun tearDown() {
+        // Remove the account here in any case; Nice to have when the test fails
+        accountManager.removeAccountExplicitly(addressBookAccount)
+    }
+
+
+    @Test
+    fun testDeleteOrphanedAddressBookAccounts_deletesAddressBookAccountWithoutCollection() {
+        // Create address book account without corresponding collection
+        assertTrue(accountManager.addAccountExplicitly(addressBookAccount, null, null))
+
+        val addressBookAccounts = accountManager.getAccountsByType(addressBookAccountType)
+        assertEquals(addressBookAccount, addressBookAccounts.firstOrNull())
+
+        // Create worker and run the method
+        val worker = TestListenableWorkerBuilder<AccountsCleanupWorker>(context)
+            .setWorkerFactory(object: WorkerFactory() {
+                override fun createWorker(appContext: Context, workerClassName: String, workerParameters: WorkerParameters) =
+                    accountsCleanupWorkerFactory.create(appContext, workerParameters)
+            })
+            .build()
+        worker.deleteOrphanedAddressBookAccounts(addressBookAccounts)
+
+        // Verify account was deleted
+        assertTrue(accountManager.getAccountsByType(addressBookAccountType).isEmpty())
+    }
+
+    @Test
+    fun testDeleteOrphanedAddressBookAccounts_leavesAddressBookAccountWithCollection() {
+        // Create address book account _with_ corresponding collection and verify
+        val randomCollectionId = 12345L
+        val userData = Bundle(1).apply {
+            putString(USER_DATA_COLLECTION_ID, "$randomCollectionId")
+        }
+        assertTrue(accountManager.addAccountExplicitly(addressBookAccount, null, userData))
+
+        val addressBookAccounts = accountManager.getAccountsByType(addressBookAccountType)
+        assertEquals(randomCollectionId, accountManager.getUserData(addressBookAccount, USER_DATA_COLLECTION_ID).toLong())
+
+        // Create the collection
+        val collectionDao = db.collectionDao()
+        collectionDao.insert(Collection(
+            randomCollectionId,
+            serviceId = service.id,
+            type = Collection.TYPE_ADDRESSBOOK,
+            url = "http://www.example.com/yay.php".toHttpUrl()
+        ))
+
+        // Create worker and run the method
+        val worker = TestListenableWorkerBuilder<AccountsCleanupWorker>(context)
+            .setWorkerFactory(object: WorkerFactory() {
+                override fun createWorker(appContext: Context, workerClassName: String, workerParameters: WorkerParameters) =
+                    accountsCleanupWorkerFactory.create(appContext, workerParameters)
+            })
+            .build()
+        worker.deleteOrphanedAddressBookAccounts(addressBookAccounts)
+
+        // Verify account was _not_ deleted
+        assertEquals(addressBookAccount, addressBookAccounts.firstOrNull())
+    }
+
+
+    // helpers
+
+    private fun createTestService(serviceType: String): Service {
+        val service = Service(id=0, accountName="test", type=serviceType, principal = null)
+        val serviceId = db.serviceDao().insertOrReplace(service)
+        return db.serviceDao().get(serviceId)!!
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/account/TestAccountAuthenticator.kt

@@ -0,0 +1,96 @@
+/***************************************************************************************************
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ **************************************************************************************************/
+package at.bitfire.davdroid.sync.account
+
+import android.accounts.AbstractAccountAuthenticator
+import android.accounts.Account
+import android.accounts.AccountAuthenticatorResponse
+import android.accounts.AccountManager
+import android.app.Service
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import androidx.test.platform.app.InstrumentationRegistry
+import at.bitfire.davdroid.settings.AccountSettings
+import at.bitfire.davdroid.test.R
+import org.junit.Assert.assertTrue
+
+/**
+ * Handles the test account type, which has no sync adapters and side effects that run unintentionally.
+ *
+ * Usually used like this:
+ *
+ * ```
+ * lateinit var account: Account
+ *
+ * @Before
+ * fun setUp() {
+ *     account = TestAccountAuthenticator.create()
+ *
+ *     // You can now use the test account.
+ * }
+ *
+ * @After
+ * fun tearDown() {
+ *    TestAccountAuthenticator.remove(account)
+ * }
+ * ```
+ */
+class TestAccountAuthenticator: Service() {
+
+    companion object {
+
+        val context by lazy { InstrumentationRegistry.getInstrumentation().context }
+
+        /**
+         * Creates a test account, usually in the `Before` setUp of a test.
+         *
+         * Remove it with [remove].
+         */
+        fun create(): Account {
+            val accountType = context.getString(R.string.account_type_test)
+            val account = Account("Test Account", accountType)
+
+            assertTrue(SystemAccountUtils.createAccount(context, account, AccountSettings.initialUserData(null)))
+
+            return account
+        }
+
+        /**
+         * Removes a test account, usually in the `@After` tearDown of a test.
+         */
+        fun remove(account: Account) {
+            val am = AccountManager.get(context)
+            am.removeAccountExplicitly(account)
+        }
+
+    }
+
+
+    private lateinit var accountAuthenticator: AccountAuthenticator
+
+
+    override fun onCreate() {
+        accountAuthenticator = AccountAuthenticator(this)
+    }
+
+    override fun onBind(intent: Intent?) =
+            accountAuthenticator.iBinder.takeIf { intent?.action == AccountManager.ACTION_AUTHENTICATOR_INTENT }
+
+
+    private class AccountAuthenticator(
+        val context: Context
+    ): AbstractAccountAuthenticator(context) {
+
+        override fun addAccount(response: AccountAuthenticatorResponse?, accountType: String?, authTokenType: String?, requiredFeatures: Array<String>?, options: Bundle?) = null
+        override fun editProperties(response: AccountAuthenticatorResponse?, accountType: String?) = null
+        override fun getAuthTokenLabel(p0: String?) = null
+        override fun confirmCredentials(p0: AccountAuthenticatorResponse?, p1: Account?, p2: Bundle?) = null
+        override fun updateCredentials(p0: AccountAuthenticatorResponse?, p1: Account?, p2: String?, p3: Bundle?) = null
+        override fun getAuthToken(p0: AccountAuthenticatorResponse?, p1: Account?, p2: String?, p3: Bundle?) = null
+        override fun hasFeatures(p0: AccountAuthenticatorResponse?, p1: Account?, p2: Array<out String>?) = null
+
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/worker/PeriodicSyncWorkerTest.kt

@@ -0,0 +1,103 @@
+/***************************************************************************************************
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ **************************************************************************************************/
+
+package at.bitfire.davdroid.sync.worker
+
+import android.accounts.Account
+import android.content.Context
+import android.provider.CalendarContract
+import android.util.Log
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.work.Configuration
+import androidx.work.ListenableWorker
+import androidx.work.WorkManager
+import androidx.work.WorkerFactory
+import androidx.work.WorkerParameters
+import androidx.work.testing.TestListenableWorkerBuilder
+import androidx.work.testing.WorkManagerTestInitHelper
+import androidx.work.workDataOf
+import at.bitfire.davdroid.sync.account.TestAccountAuthenticator
+import at.bitfire.davdroid.test.R
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import io.mockk.mockkObject
+import io.mockk.verify
+import kotlinx.coroutines.runBlocking
+import org.junit.After
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class PeriodicSyncWorkerTest {
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+    val testContext = InstrumentationRegistry.getInstrumentation().context
+
+    @Inject
+    lateinit var syncWorkerFactory: PeriodicSyncWorker.Factory
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    lateinit var account: Account
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+
+        // Initialize WorkManager for instrumentation tests.
+        val config = Configuration.Builder()
+            .setMinimumLoggingLevel(Log.DEBUG)
+            .build()
+        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
+
+        account = TestAccountAuthenticator.create()
+    }
+
+    @After
+    fun tearDown() {
+        TestAccountAuthenticator.remove(account)
+    }
+
+
+    @Test
+    fun doWork_cancelsItselfOnInvalidAccount() {
+        val invalidAccount = Account("invalid", testContext.getString(R.string.account_type_test))
+
+        // Run PeriodicSyncWorker as TestWorker
+        val inputData = workDataOf(
+            BaseSyncWorker.INPUT_AUTHORITY to CalendarContract.AUTHORITY,
+            BaseSyncWorker.INPUT_ACCOUNT_NAME to invalidAccount.name,
+            BaseSyncWorker.INPUT_ACCOUNT_TYPE to invalidAccount.type
+        )
+
+        // mock WorkManager to observe cancellation call
+        val workManager = WorkManager.getInstance(context)
+        mockkObject(workManager)
+
+        // run test worker, expect failure
+        val testWorker = TestListenableWorkerBuilder<PeriodicSyncWorker>(context, inputData)
+            .setWorkerFactory(object: WorkerFactory() {
+                override fun createWorker(appContext: Context, workerClassName: String, workerParameters: WorkerParameters) =
+                    syncWorkerFactory.create(appContext, workerParameters)
+            })
+            .build()
+        val result = runBlocking {
+            testWorker.doWork()
+        }
+        assertTrue(result is ListenableWorker.Result.Failure)
+
+        // verify that worker called WorkManager.cancelWorkById(<its ID>)
+        verify {
+            workManager.cancelWorkById(testWorker.id)
+        }
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/worker/SyncConditionsTest.kt

@@ -0,0 +1,280 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync.worker
+
+import android.accounts.Account
+import android.content.Context
+import android.net.ConnectivityManager
+import android.net.Network
+import android.net.NetworkCapabilities
+import android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET
+import android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VPN
+import android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED
+import android.net.NetworkCapabilities.TRANSPORT_WIFI
+import android.net.wifi.WifiInfo
+import android.net.wifi.WifiManager
+import androidx.core.content.getSystemService
+import at.bitfire.davdroid.settings.AccountSettings
+import at.bitfire.davdroid.sync.SyncConditions
+import at.bitfire.davdroid.util.PermissionUtils
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import io.mockk.every
+import io.mockk.impl.annotations.MockK
+import io.mockk.junit4.MockKRule
+import io.mockk.mockk
+import io.mockk.mockkObject
+import io.mockk.spyk
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class SyncConditionsTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @get:Rule
+    val mockkRule = MockKRule(this)
+
+    @MockK
+    lateinit var capabilities: NetworkCapabilities
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var factory: SyncConditions.Factory
+
+    @MockK
+    lateinit var network1: Network
+
+    @MockK
+    lateinit var network2: Network
+
+
+    private lateinit var accountSettings: AccountSettings
+
+    private lateinit var conditions: SyncConditions
+
+    private lateinit var connectivityManager: ConnectivityManager
+
+    @Before
+    fun setup() {
+        hiltRule.inject()
+
+        // prepare accountSettings with some necessary data
+        accountSettings = mockk<AccountSettings> {
+            every { account } returns Account("test", "test")
+            every { getIgnoreVpns() } returns false     // default value
+        }
+
+        conditions = factory.create(accountSettings)
+
+        connectivityManager = context.getSystemService<ConnectivityManager>()!!.also { cm ->
+            mockkObject(cm)
+            every { cm.allNetworks } returns arrayOf(network1, network2)
+            every { cm.getNetworkInfo(network1) } returns mockk()
+            every { cm.getNetworkInfo(network2) } returns mockk()
+            every { cm.getNetworkCapabilities(network1) } returns capabilities
+            every { cm.getNetworkCapabilities(network2) } returns capabilities
+        }
+    }
+
+
+    @Test
+    fun testCorrectWifiSsid_CorrectWiFiSsid() {
+        every { accountSettings.getSyncWifiOnlySSIDs() } returns listOf("SampleWiFi1","ConnectedWiFi")
+
+        mockkObject(PermissionUtils)
+        every { PermissionUtils.canAccessWifiSsid(any()) } returns true
+
+        val wifiManager = context.getSystemService<WifiManager>()!!
+        mockkObject(wifiManager)
+        every { wifiManager.connectionInfo } returns spyk<WifiInfo>().apply {
+            every { ssid } returns "ConnectedWiFi"
+        }
+
+        assertTrue(conditions.correctWifiSsid())
+    }
+
+    @Test
+    fun testCorrectWifiSsid_WrongWiFiSsid() {
+        every { accountSettings.getSyncWifiOnlySSIDs() } returns listOf("SampleWiFi1","SampleWiFi2")
+
+        mockkObject(PermissionUtils)
+        every { PermissionUtils.canAccessWifiSsid(any()) } returns true
+
+        val wifiManager = context.getSystemService<WifiManager>()!!
+        mockkObject(wifiManager)
+        every { wifiManager.connectionInfo } returns spyk<WifiInfo>().apply {
+            every { ssid } returns "ConnectedWiFi"
+        }
+
+        assertFalse(conditions.correctWifiSsid())
+    }
+
+
+    @Test
+    fun testInternetAvailable_capabilitiesNull() {
+        every { connectivityManager.getNetworkCapabilities(network1) } returns null
+        every { connectivityManager.getNetworkCapabilities(network2) } returns null
+        assertFalse(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_Internet() {
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false
+        assertFalse(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_Validated() {
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns false
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        assertFalse(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_InternetValidated() {
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        assertTrue(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_ignoreVpns() {
+        every { accountSettings.getIgnoreVpns() } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_NOT_VPN) } returns false
+        assertFalse(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_ignoreVpns_NotVpn() {
+        every { accountSettings.getIgnoreVpns() } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_NOT_VPN) } returns true
+        assertTrue(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_twoConnectionsFirstOneWithoutInternet() {
+        // The real case that failed in davx5-ose#395 is that the connection list contains (in this order)
+        // 1. a mobile network without INTERNET, but with VALIDATED
+        // 2. a WiFi network with INTERNET and VALIDATED
+
+        // The "return false" of hasINTERNET will trigger at the first connection, the
+        // "andThen true" will trigger for the second connection
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns false andThen true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+
+        // There is an internet connection if any(!) connection has both INTERNET and VALIDATED.
+        assertTrue(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_twoConnectionsFirstOneWithoutValidated() {
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false andThen true
+        assertTrue(conditions.internetAvailable())
+    }
+
+    @Test
+    fun testInternetAvailable_twoConnectionsFirstOneWithoutNotVpn() {
+        every { accountSettings.getIgnoreVpns() } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_NOT_VPN) } returns false andThen true
+        assertTrue(conditions.internetAvailable())
+    }
+    
+
+    @Test
+    fun testWifiAvailable_capabilitiesNull() {
+        every { connectivityManager.getNetworkCapabilities(network1) } returns null
+        every { connectivityManager.getNetworkCapabilities(network2) } returns null
+        assertFalse(conditions.wifiAvailable())
+    }
+
+    @Test
+    fun testWifiAvailable() {
+        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns false
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false
+        assertFalse(conditions.wifiAvailable())
+    }
+
+    @Test
+    fun testWifiAvailable_wifi() {
+        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false
+        assertFalse(conditions.wifiAvailable())
+    }
+
+    @Test
+    fun testWifiAvailable_validated() {
+        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns false
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        assertFalse(conditions.wifiAvailable())
+    }
+
+    @Test
+    fun testWifiAvailable_wifiValidated() {
+        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns true
+        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
+        assertTrue(conditions.wifiAvailable())
+    }
+
+
+    @Test
+    fun testWifiConditionsMet_withoutWifi() {
+        // "Sync only over Wi-Fi" is disabled
+        every { accountSettings.getSyncWifiOnly() } returns false
+
+        assertTrue(factory.create(accountSettings).wifiConditionsMet())
+    }
+
+    @Test
+    fun testWifiConditionsMet_anyWifi_wifiEnabled() {
+        // "Sync only over Wi-Fi" is enabled
+        every { accountSettings.getSyncWifiOnly() } returns true
+
+        // Wi-Fi is available
+        mockkObject(conditions) {
+            // Wi-Fi is available
+            every { conditions.wifiAvailable() } returns true
+
+            // Wi-Fi SSID is correct
+            every { conditions.correctWifiSsid() } returns true
+
+            assertTrue(conditions.wifiConditionsMet())
+        }
+    }
+
+    @Test
+    fun testWifiConditionsMet_anyWifi_wifiDisabled() {
+        // "Sync only over Wi-Fi" is enabled
+        every { accountSettings.getSyncWifiOnly() } returns true
+
+        mockkObject(conditions) {
+            // Wi-Fi is not available
+            every { conditions.wifiAvailable() } returns false
+
+            // Wi-Fi SSID is correct
+            every { conditions.correctWifiSsid() } returns true
+
+            assertFalse(conditions.wifiConditionsMet())
+        }
+    }
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/sync/worker/SyncWorkerManagerTest.kt

@@ -0,0 +1,99 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.sync.worker
+
+import android.accounts.Account
+import android.content.Context
+import android.provider.CalendarContract
+import android.util.Log
+import androidx.hilt.work.HiltWorkerFactory
+import androidx.work.Configuration
+import androidx.work.testing.WorkManagerTestInitHelper
+import at.bitfire.davdroid.TestUtils
+import at.bitfire.davdroid.TestUtils.workScheduledOrRunning
+import at.bitfire.davdroid.sync.account.TestAccountAuthenticator
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class SyncWorkerManagerTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var syncWorkerManager: SyncWorkerManager
+
+    @Inject
+    lateinit var workerFactory: HiltWorkerFactory
+
+    lateinit var account: Account
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+
+        // Initialize WorkManager for instrumentation tests.
+        val config = Configuration.Builder()
+            .setMinimumLoggingLevel(Log.DEBUG)
+            .setWorkerFactory(workerFactory)
+            .build()
+        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
+
+        account = TestAccountAuthenticator.create()
+    }
+
+    @After
+    fun tearDown() {
+        TestAccountAuthenticator.remove(account)
+    }
+
+
+    // one-time sync workers
+
+    @Test
+    fun testEnqueueOneTime() {
+        val workerName = OneTimeSyncWorker.workerName(account, CalendarContract.AUTHORITY)
+        assertFalse(TestUtils.workScheduledOrRunningOrSuccessful(context, workerName))
+
+        val returnedName = syncWorkerManager.enqueueOneTime(account, CalendarContract.AUTHORITY)
+        assertEquals(workerName, returnedName)
+        assertTrue(TestUtils.workScheduledOrRunningOrSuccessful(context, workerName))
+    }
+
+
+    // periodic sync workers
+
+    @Test
+    fun enablePeriodic() {
+        syncWorkerManager.enablePeriodic(account, CalendarContract.AUTHORITY, 60, false).result.get()
+
+        val workerName = PeriodicSyncWorker.workerName(account, CalendarContract.AUTHORITY)
+        assertTrue(workScheduledOrRunning(context, workerName))
+    }
+
+    @Test
+    fun disablePeriodic() {
+        syncWorkerManager.enablePeriodic(account, CalendarContract.AUTHORITY, 60, false).result.get()
+        syncWorkerManager.disablePeriodic(account, CalendarContract.AUTHORITY).result.get()
+
+        val workerName = PeriodicSyncWorker.workerName(account, CalendarContract.AUTHORITY)
+        assertFalse(workScheduledOrRunning(context, workerName))
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/ui/DebugInfoActivityTest.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.ui
+
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class DebugInfoActivityTest {
+
+    @Test
+    fun testIntentBuilder_LargeLocalResource() {
+        val a = 'A'.code.toByte()
+        val intent = DebugInfoActivity.IntentBuilder(InstrumentationRegistry.getInstrumentation().context)
+            .withLocalResource(String(ByteArray(1024*1024) { a }))
+            .build()
+        val expected = StringBuilder(DebugInfoActivity.IntentBuilder.MAX_ELEMENT_SIZE)
+        expected.append(String(ByteArray(DebugInfoActivity.IntentBuilder.MAX_ELEMENT_SIZE - 3) { a }))
+        expected.append("...")
+        assertEquals(expected.toString(), intent.getStringExtra("localResource"))
+    }
+
+    @Test
+    fun testIntentBuilder_LargeLogs() {
+        val a = 'A'.code.toByte()
+        val intent = DebugInfoActivity.IntentBuilder(InstrumentationRegistry.getInstrumentation().context)
+            .withLogs(String(ByteArray(1024*1024) { a }))
+            .build()
+        val expected = StringBuilder(DebugInfoActivity.IntentBuilder.MAX_ELEMENT_SIZE)
+        expected.append(String(ByteArray(DebugInfoActivity.IntentBuilder.MAX_ELEMENT_SIZE - 3) { a }))
+        expected.append("...")
+        assertEquals(expected.toString(), intent.getStringExtra("logs"))
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/webdav/CredentialsStoreTest.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.webdav
+
+import at.bitfire.davdroid.db.Credentials
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class CredentialsStoreTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var store: CredentialsStore
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+    }
+
+    @Test
+    fun testSetGetDelete() {
+        store.setCredentials(0, Credentials(username = "myname", password = "12345"))
+        assertEquals(Credentials(username = "myname", password = "12345"), store.getCredentials(0))
+
+        store.setCredentials(0, null)
+        assertNull(store.getCredentials(0))
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/webdav/DavDocumentsProviderTest.kt

@@ -0,0 +1,254 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.webdav
+
+import android.content.Context
+import android.security.NetworkSecurityPolicy
+import at.bitfire.davdroid.R
+import at.bitfire.davdroid.db.AppDatabase
+import at.bitfire.davdroid.db.WebDavDocument
+import at.bitfire.davdroid.db.WebDavMount
+import at.bitfire.davdroid.network.HttpClient
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import okhttp3.CookieJar
+import okhttp3.mockwebserver.Dispatcher
+import okhttp3.mockwebserver.MockResponse
+import okhttp3.mockwebserver.MockWebServer
+import okhttp3.mockwebserver.RecordedRequest
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class DavDocumentsProviderTest {
+
+    companion object {
+        private const val PATH_WEBDAV_ROOT = "/webdav"
+    }
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    @ApplicationContext
+    lateinit var context: Context
+
+    @Inject
+    lateinit var db: AppDatabase
+
+    @Inject
+    lateinit var logger: java.util.logging.Logger
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+    }
+
+
+    private var mockServer =  MockWebServer()
+
+    private lateinit var client: HttpClient
+
+
+    @Before
+    fun mockServerSetup() {
+        // Start mock web server
+        mockServer.dispatcher = TestDispatcher(logger)
+        mockServer.start()
+
+        client = HttpClient.Builder(context).build()
+
+        // mock server delivers HTTP without encryption
+        assertTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
+    }
+
+    @After
+    fun cleanUp() {
+        mockServer.shutdown()
+        db.close()
+    }
+
+
+    @Test
+    fun testDoQueryChildren_insert() {
+        // Create parent and root in database
+        val id = db.webDavMountDao().insert(WebDavMount(0, "Cat food storage", mockServer.url(PATH_WEBDAV_ROOT)))
+        val webDavMount = db.webDavMountDao().getById(id)
+        val parent = db.webDavDocumentDao().getOrCreateRoot(webDavMount)
+        val cookieStore = mutableMapOf<Long, CookieJar>()
+
+        // Query
+        DavDocumentsProvider.DavDocumentsActor(context, db, logger, cookieStore, CredentialsStore(context), context.getString(R.string.webdav_authority))
+            .queryChildren(parent)
+
+        // Assert new children were inserted into db
+        assertEquals(3, db.webDavDocumentDao().getChildren(parent.id).size)
+        assertEquals("Secret_Document.pages", db.webDavDocumentDao().getChildren(parent.id)[0].displayName)
+        assertEquals("MeowMeow_Cats.docx", db.webDavDocumentDao().getChildren(parent.id)[1].displayName)
+        assertEquals("Library", db.webDavDocumentDao().getChildren(parent.id)[2].displayName)
+    }
+
+    @Test
+    fun testDoQueryChildren_update() {
+        // Create parent and root in database
+        val mountId = db.webDavMountDao().insert(WebDavMount(0, "Cat food storage", mockServer.url(PATH_WEBDAV_ROOT)))
+        val webDavMount = db.webDavMountDao().getById(mountId)
+        val parent = db.webDavDocumentDao().getOrCreateRoot(webDavMount)
+        val cookieStore = mutableMapOf<Long, CookieJar>()
+        assertEquals("Cat food storage", db.webDavDocumentDao().get(parent.id)!!.displayName)
+
+        // Create a folder
+        val folderId = db.webDavDocumentDao().insert(
+            WebDavDocument(
+                0,
+                mountId,
+                parent.id,
+                "My_Books",
+                true,
+                "My Books",
+            )
+        )
+        assertEquals("My_Books", db.webDavDocumentDao().get(folderId)!!.name)
+        assertEquals("My Books", db.webDavDocumentDao().get(folderId)!!.displayName)
+
+        // Query - should update the parent displayname and folder name
+        DavDocumentsProvider.DavDocumentsActor(context, db, logger, cookieStore, CredentialsStore(context), context.getString(R.string.webdav_authority))
+            .queryChildren(parent)
+
+        // Assert parent and children were updated in database
+        assertEquals("Cats WebDAV", db.webDavDocumentDao().get(parent.id)!!.displayName)
+        assertEquals("Library", db.webDavDocumentDao().getChildren(parent.id)[2].name)
+        assertEquals("Library", db.webDavDocumentDao().getChildren(parent.id)[2].displayName)
+
+    }
+
+    @Test
+    fun testDoQueryChildren_delete() {
+        // Create parent and root in database
+        val mountId = db.webDavMountDao().insert(WebDavMount(0, "Cat food storage", mockServer.url(PATH_WEBDAV_ROOT)))
+        val webDavMount = db.webDavMountDao().getById(mountId)
+        val parent = db.webDavDocumentDao().getOrCreateRoot(webDavMount)
+        val cookieStore = mutableMapOf<Long, CookieJar>()
+
+        // Create a folder
+        val folderId = db.webDavDocumentDao().insert(
+            WebDavDocument(0, mountId, parent.id, "deleteme", true, "Should be deleted")
+        )
+        assertEquals("deleteme", db.webDavDocumentDao().get(folderId)!!.name)
+
+        // Query - discovers serverside deletion
+        DavDocumentsProvider.DavDocumentsActor(context, db, logger, cookieStore, CredentialsStore(context), context.getString(R.string.webdav_authority))
+            .queryChildren(parent)
+
+        // Assert folder got deleted
+        assertEquals(null, db.webDavDocumentDao().get(folderId))
+    }
+
+    @Test
+    fun testDoQueryChildren_updateTwoParentsSimultaneous() {
+        // Create root in database
+        val mountId = db.webDavMountDao().insert(WebDavMount(0, "Cat food storage", mockServer.url(PATH_WEBDAV_ROOT)))
+        val webDavMount = db.webDavMountDao().getById(mountId)
+        val root = db.webDavDocumentDao().getOrCreateRoot(webDavMount)
+        val cookieStore = mutableMapOf<Long, CookieJar>()
+
+        // Create two parents
+        val parent1Id = db.webDavDocumentDao().insert(WebDavDocument(0, mountId, root.id, "parent1", true))
+        val parent2Id = db.webDavDocumentDao().insert(WebDavDocument(0, mountId, root.id, "parent2", true))
+        val parent1 = db.webDavDocumentDao().get(parent1Id)!!
+        val parent2 = db.webDavDocumentDao().get(parent2Id)!!
+        assertEquals("parent1", parent1.name)
+        assertEquals("parent2", parent2.name)
+
+        // Query - find children of two nodes simultaneously
+        DavDocumentsProvider.DavDocumentsActor(context, db, logger, cookieStore, CredentialsStore(context), context.getString(R.string.webdav_authority))
+            .queryChildren(parent1)
+        DavDocumentsProvider.DavDocumentsActor(context, db, logger, cookieStore, CredentialsStore(context), context.getString(R.string.webdav_authority))
+            .queryChildren(parent2)
+
+        // Assert the two folders names have changed
+        assertEquals("childOne.txt", db.webDavDocumentDao().getChildren(parent1Id)[0].name)
+        assertEquals("childTwo.txt", db.webDavDocumentDao().getChildren(parent2Id)[0].name)
+    }
+
+
+    // mock server
+
+    class TestDispatcher(
+        private val logger: java.util.logging.Logger
+    ): Dispatcher() {
+
+        data class Resource(
+            val name: String,
+            val props: String
+        )
+
+        override fun dispatch(request: RecordedRequest): MockResponse {
+            val requestPath = request.path!!.trimEnd('/')
+
+            if (request.method.equals("PROPFIND", true)) {
+
+                val propsMap = mutableMapOf(
+                    PATH_WEBDAV_ROOT to arrayOf(
+                        Resource("",
+                            "<resourcetype><collection/></resourcetype>" +
+                            "<displayname>Cats WebDAV</displayname>"
+                        ),
+                        Resource("Secret_Document.pages",
+                            "<displayname>Secret_Document.pages</displayname>",
+                        ),
+                        Resource("MeowMeow_Cats.docx",
+                            "<displayname>MeowMeow_Cats.docx</displayname>"
+                        ),
+                        Resource("Library",
+                            "<resourcetype><collection/></resourcetype>" +
+                            "<displayname>Library</displayname>"
+                        )
+                    ),
+
+                    "$PATH_WEBDAV_ROOT/parent1" to arrayOf(
+                        Resource("childOne.txt",
+                            "<displayname>childOne.txt</displayname>"
+                        ),
+                    ),
+                    "$PATH_WEBDAV_ROOT/parent2" to arrayOf(
+                        Resource("childTwo.txt",
+                            "<displayname>childTwo.txt</displayname>"
+                        )
+                    )
+                )
+
+                val responses = propsMap[requestPath]?.joinToString { resource ->
+                    "<response><href>$requestPath/${resource.name}</href><propstat><prop>" +
+                            resource.props +
+                    "</prop></propstat></response>"
+                }
+
+                val multistatus =
+                    "<multistatus xmlns='DAV:' " +
+                        "xmlns:CARD='urn:ietf:params:xml:ns:carddav' " +
+                        "xmlns:CAL='urn:ietf:params:xml:ns:caldav'>" +
+                        responses +
+                    "</multistatus>"
+
+                logger.info("Query path: $requestPath")
+                logger.info("Response: $multistatus")
+                return MockResponse()
+                    .setResponseCode(207)
+                    .setBody(multistatus)
+            }
+
+            return MockResponse().setResponseCode(404)
+        }
+
+    }
+
+}

app/src/androidTest/kotlin/at/bitfire/davdroid/webdav/WebDavMountRepositoryTest.kt

@@ -0,0 +1,66 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package at.bitfire.davdroid.webdav
+
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import kotlinx.coroutines.runBlocking
+import okhttp3.mockwebserver.MockResponse
+import okhttp3.mockwebserver.MockWebServer
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import javax.inject.Inject
+
+@HiltAndroidTest
+class WebDavMountRepositoryTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Inject
+    lateinit var repository: WebDavMountRepository
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+    }
+
+    val web = MockWebServer()
+    val url = web.url("/")
+
+    @Test
+    fun testHasWebDav_NoDavHeader() = runBlocking {
+        web.enqueue(MockResponse().setResponseCode(200))
+        assertFalse(repository.hasWebDav(url, null))
+    }
+
+    @Test
+    fun testHasWebDav_DavClass1() = runBlocking {
+        web.enqueue(MockResponse()
+            .setResponseCode(200)
+            .addHeader("DAV: 1"))
+        assertTrue(repository.hasWebDav(url, null))
+    }
+
+    @Test
+    fun testHasWebDav_DavClass2() = runBlocking {
+        web.enqueue(MockResponse()
+            .setResponseCode(200)
+            .addHeader("DAV: 1, 2"))
+        assertTrue(repository.hasWebDav(url, null))
+    }
+
+    @Test
+    fun testHasWebDav_DavClass3() = runBlocking {
+        web.enqueue(MockResponse()
+            .setResponseCode(200)
+            .addHeader("DAV: 1, 3"))
+        assertTrue(repository.hasWebDav(url, null))
+    }
+
+}

app/src/androidTest/res/values/strings.xml

@@ -10,5 +10,6 @@
 <resources>
 
     <string name="app_name">Davx5Test</string>
+    <string name="account_type_test">at.bitfire.davdroid.test</string>
 
-</resources>
+</resources>

app/src/androidTest/res/xml/test_account_authenticator.xml

@@ -1,3 +1,5 @@
 <account-authenticator xmlns:android="http://schemas.android.com/apk/res/android"
-    android:accountType="at.bitfire.davdroid.SyncManagerTest"
+    android:accountType="@string/account_type_test"
+    android:icon="@android:drawable/star_on"
+    android:smallIcon="@android:drawable/star_on"
     android:label="Test Account" />

app/src/debug/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="primaryColor">#E07C25</color>
+    <color name="primaryLightColor">#E5A371</color>
+    <color name="primaryDarkColor">#7C3E07</color>
+</resources>

app/src/debug/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">DAVx⁵ Debug</string>
+</resources>

app/src/main/AndroidManifest.xml

@@ -1,14 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest package="at.bitfire.davdroid"
-          xmlns:android="http://schemas.android.com/apk/res/android"
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools"
           android:installLocation="internalOnly">
 
     <!-- normal permissions -->
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
     <uses-permission android:name="android.permission.READ_SYNC_SETTINGS"/>
     <uses-permission android:name="android.permission.READ_SYNC_STATS"/>
     <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS"/>
@@ -39,25 +38,36 @@
 
     <!-- ical4android declares task access permissions -->
 
+    <!-- Disable GPS capability requirement, which is implicitly derived from ACCESS_FINE_LOCATION
+    permission and makes app unusable on some devices without GPS. We need location permissions only
+    to get the current WiFi SSID, and we don't need GPS for that. -->
+    <uses-feature android:name="android.hardware.location.gps" android:required="false" />
+
     <application
         android:name=".App"
         android:allowBackup="false"
         android:networkSecurityConfig="@xml/network_security_config"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme"
+        android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
         android:resizeableActivity="true"
         tools:ignore="UnusedAttribute"
         android:supportsRtl="true">
 
-        <service android:name=".DavService"/>
-        <service android:name=".ForegroundService"/>
+        <!-- required for Hilt/WorkManager integration -->
+        <provider
+            android:name="androidx.startup.InitializationProvider"
+            android:authorities="${applicationId}.androidx-startup"
+            tools:node="remove">
+        </provider>
 
-        <activity android:name=".ui.intro.IntroActivity" android:theme="@style/AppTheme.NoActionBar" />
+        <!-- Remove the node added by AppAuth (remove only from net.openid.appauth library, not from our flavor manifest files) -->
+        <activity android:name="net.openid.appauth.RedirectUriReceiverActivity"
+            tools:node="remove" tools:selector="net.openid.appauth"/>
+
+        <activity android:name=".ui.intro.IntroActivity" />
         <activity
             android:name=".ui.AccountsActivity"
-            android:label="@string/app_name"
-            android:theme="@style/AppTheme.NoActionBar"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
@@ -68,7 +78,6 @@
         <activity
             android:name=".ui.AboutActivity"
             android:label="@string/navigation_drawer_about"
-            android:theme="@style/AppTheme.NoActionBar"
             android:parentActivityName=".ui.AccountsActivity"/>
 
         <activity
@@ -102,47 +111,65 @@
 
         <activity
             android:name=".ui.setup.LoginActivity"
-            android:label="@string/login_title"
             android:parentActivityName=".ui.AccountsActivity"
+            android:windowSoftInputMode="adjustResize"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <data android:scheme="caldav"/>
+                <data android:scheme="caldavs"/>
+                <data android:scheme="carddav"/>
+                <data android:scheme="carddavs"/>
+                <data android:scheme="davx5"/>
+            </intent-filter>
+            <intent-filter>
+                <action android:name="loginFlow" /> <!-- Ensures this filter matches, even if the sending app is not defining an action -->
+                <category android:name="android.intent.category.DEFAULT" />
+                <data
+                    tools:ignore="AppLinkUrlError"
+                    android:scheme="http" />
+                <data android:scheme="https" />
+            </intent-filter>
         </activity>
 
         <activity
             android:name=".ui.account.AccountActivity"
             android:parentActivityName=".ui.AccountsActivity"
-            android:theme="@style/AppTheme.NoActionBar"/>
+            android:exported="true">
+        </activity>
+        <activity
+            android:name=".ui.account.CollectionActivity"
+            android:parentActivityName=".ui.account.AccountActivity" />
         <activity
             android:name=".ui.account.CreateAddressBookActivity"
-            android:label="@string/create_addressbook"
             android:parentActivityName=".ui.account.AccountActivity" />
         <activity
             android:name=".ui.account.CreateCalendarActivity"
-            android:label="@string/create_calendar"
             android:parentActivityName=".ui.account.AccountActivity" />
         <activity
-            android:name=".ui.account.SettingsActivity"
+            android:name=".ui.account.AccountSettingsActivity"
             android:parentActivityName=".ui.account.AccountActivity" />
         <activity
             android:name=".ui.account.WifiPermissionsActivity"
-            android:label="@string/wifi_permissions_label"
-            android:parentActivityName=".ui.account.SettingsActivity" />
+            android:parentActivityName=".ui.account.AccountSettingsActivity" />
 
         <activity
             android:name=".ui.webdav.WebdavMountsActivity"
-            android:label="@string/webdav_mounts_title"
-            android:parentActivityName=".ui.AccountsActivity"
-            android:exported="true" />
+            android:exported="true"
+            android:parentActivityName=".ui.AccountsActivity" />
         <activity
             android:name=".ui.webdav.AddWebdavMountActivity"
-            android:label="@string/webdav_add_mount_title"
-            android:parentActivityName=".ui.webdav.WebdavMountsActivity" />
+            android:parentActivityName=".ui.webdav.WebdavMountsActivity"
+            android:windowSoftInputMode="adjustResize" />
 
         <!-- account type "DAVx⁵" -->
         <service
-            android:name=".syncadapter.AccountAuthenticatorService"
+            android:name=".sync.account.AccountAuthenticatorService"
             android:exported="false">
             <intent-filter>
                 <action android:name="android.accounts.AccountAuthenticator"/>
@@ -152,7 +179,7 @@
                 android:resource="@xml/account_authenticator"/>
         </service>
         <service
-            android:name=".syncadapter.CalendarsSyncAdapterService"
+            android:name=".sync.CalendarsSyncAdapterService"
             android:exported="true"
             tools:ignore="ExportedService">
             <intent-filter>
@@ -163,7 +190,18 @@
                 android:resource="@xml/sync_calendars"/>
         </service>
         <service
-            android:name=".syncadapter.OpenTasksSyncAdapterService"
+            android:name=".sync.JtxSyncAdapterService"
+            android:exported="true"
+            tools:ignore="ExportedService">
+            <intent-filter>
+                <action android:name="android.content.SyncAdapter"/>
+            </intent-filter>
+            <meta-data
+                android:name="android.content.SyncAdapter"
+                android:resource="@xml/sync_notes"/>
+        </service>
+        <service
+            android:name=".sync.OpenTasksSyncAdapterService"
             android:exported="true"
             tools:ignore="ExportedService">
             <intent-filter>
@@ -174,7 +212,7 @@
                 android:resource="@xml/sync_opentasks"/>
         </service>
         <service
-            android:name=".syncadapter.TasksOrgSyncAdapterService"
+            android:name=".sync.TasksOrgSyncAdapterService"
             android:exported="true"
             tools:ignore="ExportedService">
             <intent-filter>
@@ -197,8 +235,9 @@
 
         <!-- account type "DAVx⁵ Address book" -->
         <service
-            android:name=".syncadapter.NullAuthenticatorService"
-            android:exported="true">   <!-- Since Android 11, this must be true so that Google Contacts shows the address book accounts -->
+            android:name=".sync.account.AddressBookAuthenticatorService"
+            android:exported="true"
+            tools:ignore="ExportedService">   <!-- Since Android 11, this must be true so that Google Contacts shows the address book accounts -->
             <intent-filter>
                 <action android:name="android.accounts.AccountAuthenticator"/>
             </intent-filter>
@@ -207,26 +246,8 @@
                 android:name="android.accounts.AccountAuthenticator"
                 android:resource="@xml/account_authenticator_address_book"/>
         </service>
-        <provider
-            android:authorities="@string/address_books_authority"
-            android:exported="false"
-            android:label="@string/address_books_authority_title"
-            android:name=".syncadapter.AddressBookProvider"
-            android:multiprocess="false"/>
         <service
-            android:name=".syncadapter.AddressBooksSyncAdapterService"
-            android:exported="true"
-            tools:ignore="ExportedService">
-            <intent-filter>
-                <action android:name="android.content.SyncAdapter"/>
-            </intent-filter>
-
-            <meta-data
-                android:name="android.content.SyncAdapter"
-                android:resource="@xml/sync_address_books"/>
-        </service>
-        <service
-            android:name=".syncadapter.ContactsSyncAdapterService"
+            android:name=".sync.ContactsSyncAdapterService"
             android:exported="true"
             tools:ignore="ExportedService">
             <intent-filter>
@@ -241,14 +262,6 @@
                 android:resource="@xml/contacts"/>
         </service>
 
-        <receiver
-            android:name=".BootCompletedReceiver"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="android.intent.action.BOOT_COMPLETED" />
-            </intent-filter>
-        </receiver>
-
         <!-- provider to share debug info/logs -->
         <provider
             android:name="androidx.core.content.FileProvider"
@@ -260,11 +273,39 @@
                 android:resource="@xml/debug_paths" />
         </provider>
 
+        <!-- UnifiedPush receiver -->
+        <receiver android:exported="true"  android:enabled="true"  android:name=".push.UnifiedPushReceiver" tools:ignore="ExportedReceiver">
+            <intent-filter>
+                <action android:name="org.unifiedpush.android.connector.MESSAGE"/>
+                <action android:name="org.unifiedpush.android.connector.UNREGISTERED"/>
+                <action android:name="org.unifiedpush.android.connector.NEW_ENDPOINT"/>
+                <action android:name="org.unifiedpush.android.connector.REGISTRATION_FAILED"/>
+            </intent-filter>
+        </receiver>
+
+        <!-- Widgets -->
+        <receiver android:name=".ui.widget.SyncButtonWidgetReceiver"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_info_sync_button" />
+        </receiver>
+
     </application>
 
     <!-- package visiblity – which apps do we need to see? -->
     <queries>
+        <!-- system providers (listing them is technically not required, but some apps like the
+        Huawei calendar take this as indication of whether these providers are accessed) -->
+        <provider android:authorities="com.android.calendar"/>
+        <provider android:authorities="com.android.contacts"/>
+
         <!-- task providers -->
+        <package android:name="at.techbee.jtx" />
         <package android:name="org.dmfs.tasks" />
         <package android:name="org.tasks" />
 
@@ -293,4 +334,4 @@
         </intent>
     </queries>
 
-</manifest>
+</manifest>

app/src/main/assets/known-base-urls.txt

@@ -1,22 +0,0 @@
-carddav.a1.net
-aol.com
-dav.edis.at
-dav.fruux.com
-caldav.gmx.net
-carddav.gmx.net
-icloud.com
-cloud.liberta.vip
-office.luckycloud.de
-calendar.mail.ru
-mailbox.org
-mailfence.com
-posteo.de:8443
-live.teambox.eu
-spica.t-online.de
-caldav.calendar.yahoo.com
-yandex.ru
-webmail.your-server.de/rpc.php/
-calendar.zoho.com
-calendar.zoho.eu
-contacts.zoho.com
-contacts.zoho.eu

app/src/main/assets/logging.properties

@@ -0,0 +1,4 @@
+
+# reduce verbose of some otherwise annoying ical4j messages
+net.fortuna.ical4j.data.level = INFO
+net.fortuna.ical4j.model.Recur.level = INFO

app/src/main/assets/translators.json

@@ -1 +1 @@
-{"ar_SA":["abdunnasir"],"bg":["dpa_transifex"],"ca":["Kintu","jordibrus","zagur"],"cs":["pavelb","tomas.odehnal"],"da":["Tntdruid_","knutztar","mjjzf","twikedk"],"de":["Atalanttore","TheName","Wyrrrd","YvanM","amandablue","anestiskaci","corppneq","crit12","maxkl","nicolas_git","owncube"],"el":["KristinaQejvanaj","anestiskaci","diamond_gr"],"es":["Ark74","Elhea","GranPC","aluaces","jcvielma","plaguna","polkhas","xphnx"],"eu":["Osoitz","Thadah","cockeredradiation"],"fa":["Numb","ahangarha","amiraliakbari","joojoojoo","maryambehzi","mtashackori","taranehsaei"],"fi_FI":["raketti","tseipii"],"fr":["AlainR","Amadeen","Floflr","Jorg722","Llorc","LoiX07","Novick","Poussinou","Thecross","YvanM","alkino2","boutil","callmemagnus","chfo","chrcha","grenatrad","jokx","mathieugfortin","vincen","ÉricB."],"fr_FR":["Llorc","Poussinou","chrcha"],"gl":["aluaces","pikamoku"],"hu":["Roshek","jtg"],"it":["Damtux","FranzMari","ed0","malaerba","noccio","nwandy","rickyroo","technezio"],"it_IT":["malaerba"],"ja":["Naofumi"],"nb_NO":["elonus"],"nl":["XtremeNova","davtemp","dehart","erikhubers","frankyboy1963","glotzbach","toonvangerwen"],"pl":["TORminator","TheName","Valdnet","gsz","mg6","oskarjakiela"],"pt":["amalvarenga","wanderlei.huttel"],"pt_BR":["wanderlei.huttel"],"ru":["aigoshin","anm","astalavister","nick.savin","vaddd"],"sk_SK":["brango67","tiborepcek"],"sl_SI":["MrLaaky","uroszor"],"sr":["daimonion"],"sv":["campbelldavid"],"szl":["chlodny"],"tr_TR":["ooguz","pultars"],"uk":["androsua","olexn","twixi007"],"uk_UA":["astalavister"],"zh_CN":["anolir","jxj2zzz79pfp9bpo","linuxbckp","mofitt2016","oksjd","phy","spice2wolf"],"zh_TW":["linuxbckp","mofitt2016","phy","waiabsfabuloushk"]}
+{"ar_SA":["abdunnasir"],"bg":["dpa_transifex"],"ca":["Kintu","jordibrus","zagur"],"cs":["pavelb","svetlemodry","tomas.odehnal"],"da":["Tntdruid_","knutztar","mjjzf","twikedk"],"de":["Atalanttore","TheName","Wyrrrd","YvanM","amandablue","anestiskaci","corppneq","crit12","hammaschlach","maxkl","nicolas_git","owncube"],"el":["KristinaQejvanaj","anestiskaci","diamond_gr"],"es":["Ark74","Elhea","GranPC","aluaces","jcvielma","plaguna","polkhas","xphnx"],"eu":["Osoitz","Thadah","cockeredradiation"],"fa":["Numb","ahangarha","amiraliakbari","joojoojoo","maryambehzi","mtashackori","taranehsaei"],"fr":["AlainR","Amadeen","Floflr","JorisBodin","Llorc","LoiX07","Novick","Poussinou","Thecross","YvanM","alkino2","boutil","callmemagnus","chrcha","grenatrad","jokx","mathieugfortin","paullbn","vincen","ÉricB."],"fr_FR":["Llorc","Poussinou","chrcha"],"gl":["aluaces","pikamoku"],"hu":["Roshek","infeeeee","jtg"],"it":["Damtux","FranzMari","ed0","malaerba","noccio","nwandy","rickyroo","technezio"],"it_IT":["malaerba"],"ja":["Naofumi","yanorei32"],"nb_NO":["elonus"],"nl":["XtremeNova","davtemp","dehart","erikhubers","frankyboy1963"],"pl":["TORminator","TheName","Valdnet","gsz","mg6","oskarjakiela"],"pt":["amalvarenga","wanderlei.huttel"],"pt_BR":["wanderlei.huttel"],"ru":["aigoshin","anm","ashed","astalavister","nick.savin","vaddd"],"sk_SK":["brango67","tiborepcek"],"sl_SI":["MrLaaky","uroszor"],"sr":["daimonion"],"sv":["Mikaelb","campbelldavid"],"szl":["chlodny"],"tr_TR":["ooguz","pultars"],"uk":["androsua","olexn","twixi007"],"uk_UA":["astalavister"],"zh_CN":["anolir","jxj2zzz79pfp9bpo","linuxbckp","mofitt2016","oksjd","phy","spice2wolf"],"zh_TW":["linuxbckp","mofitt2016","phy","waiabsfabuloushk"]}

app/src/main/java/at/bitfire/davdroid/AndroidSingleton.kt

@@ -1,29 +0,0 @@
-package at.bitfire.davdroid
-
-import android.content.Context
-
-abstract class AndroidSingleton<T> {
-
-    var creatingSingleton = false
-    var singleton: T? = null
-
-    @Synchronized
-    fun getInstance(context: Context): T {
-        singleton?.let {
-            return it
-        }
-
-        if (creatingSingleton)
-            throw IllegalStateException("AndroidSingleton::getInstance() must not be called while createInstance()")
-        creatingSingleton = true
-
-        val newSingleton = createInstance(context.applicationContext)
-        singleton = newSingleton
-
-        creatingSingleton = false
-        return newSingleton
-    }
-
-    protected abstract fun createInstance(context: Context): T
-
-}

app/src/main/java/at/bitfire/davdroid/App.kt

@@ -1,99 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-package at.bitfire.davdroid
-
-import android.app.Application
-import android.content.Context
-import android.content.Intent
-import android.net.Uri
-import android.os.StrictMode
-import androidx.appcompat.content.res.AppCompatResources
-import androidx.core.graphics.drawable.toBitmap
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.ui.DebugInfoActivity
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.davdroid.ui.UiUtils
-import java.util.logging.Level
-import kotlin.concurrent.thread
-import kotlin.system.exitProcess
-
-@Suppress("unused")
-class App: Application(), Thread.UncaughtExceptionHandler {
-
-    companion object {
-
-        fun getLauncherBitmap(context: Context) =
-                AppCompatResources.getDrawable(context, R.mipmap.ic_launcher)?.toBitmap()
-
-        fun homepageUrl(context: Context) =
-                Uri.parse(context.getString(R.string.homepage_url)).buildUpon()
-                        .appendQueryParameter("pk_campaign", BuildConfig.APPLICATION_ID)
-                        .appendQueryParameter("pk_kwd", context::class.java.simpleName)
-                        .appendQueryParameter("app-version", BuildConfig.VERSION_NAME)
-                        .build()!!
-
-    }
-
-
-    override fun onCreate() {
-        super.onCreate()
-        Logger.initialize(this)
-
-        if (BuildConfig.DEBUG)
-            // debug builds
-            StrictMode.setVmPolicy(StrictMode.VmPolicy.Builder()
-                    .detectActivityLeaks()
-                    .detectFileUriExposure()
-                    .detectLeakedClosableObjects()
-                    .detectLeakedRegistrationObjects()
-                    .detectLeakedSqlLiteObjects()
-                    .penaltyLog()
-                    .build())
-        else // if (BuildConfig.FLAVOR == FLAVOR_STANDARD)
-            // handle uncaught exceptions in non-debug standard flavor
-            Thread.setDefaultUncaughtExceptionHandler(this)
-
-        NotificationUtils.createChannels(this)
-
-        // set light/dark mode
-        UiUtils.setTheme(this)      // when this is called in the asynchronous thread below, it recreates
-                                    // some current activity and causes an IllegalStateException in rare cases
-
-        // don't block UI for some background checks
-        thread {
-            // create/update app shortcuts
-            UiUtils.updateShortcuts(this)
-
-            // watch installed/removed apps
-            TasksWatcher(this)
-
-            // check whether a tasks app is currently installed
-            TasksWatcher.updateTaskSync(this)
-
-            // check/repair sync intervals
-            AccountSettings.repairSyncIntervals(this)
-
-            // foreground service (possible workaround for devices which prevent DAVx5 from being started)
-            ForegroundService.startIfEnabled(this)
-        }
-    }
-
-    override fun uncaughtException(t: Thread, e: Throwable) {
-        Logger.log.log(Level.SEVERE, "Unhandled exception!", e)
-
-        val intent = Intent(this, DebugInfoActivity::class.java)
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-        intent.putExtra(DebugInfoActivity.EXTRA_CAUSE, e)
-        startActivity(intent)
-
-        exitProcess(1)
-    }
-
-}

app/src/main/java/at/bitfire/davdroid/BootCompletedReceiver.kt

@@ -1,22 +0,0 @@
-package at.bitfire.davdroid
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import at.bitfire.davdroid.log.Logger
-
-/**
- * There are circumstances when Android drops automatic sync of accounts and resets them
- * to manual synchronization, for instance when the device is booted into safe mode.
- *
- * This receiver causes the app to be started when the device is rebooted. When the app
- * is started, it checks (and repairs, if necessary) the sync intervals in [App.onCreate].
- */
-class BootCompletedReceiver: BroadcastReceiver() {
-
-    override fun onReceive(context: Context, intent: Intent) {
-        Logger.log.info("Device has been rebooted; checking sync intervals etc.")
-        // sync intervals are checked in App.onCreate()
-    }
-
-}

app/src/main/java/at/bitfire/davdroid/CompatUtils.kt

@@ -1,12 +0,0 @@
-package at.bitfire.davdroid
-
-import android.content.ContentProviderClient
-import android.os.Build
-
-@Suppress("DEPRECATION")
-fun ContentProviderClient.closeCompat() {
-    if (Build.VERSION.SDK_INT >= 24)
-        close()
-    else
-        release()
-}

app/src/main/java/at/bitfire/davdroid/Constants.kt

@@ -1,28 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-package at.bitfire.davdroid
-
-object Constants {
-
-    const val DAVDROID_GREEN_RGBA = 0xFF8bc34a.toInt()
-
-    /**
-     * Context label for [org.apache.commons.lang3.exception.ContextedException].
-     * Context value is the [at.bitfire.davdroid.resource.LocalResource]
-     * which is related to the exception cause.
-     */
-    const val EXCEPTION_CONTEXT_LOCAL_RESOURCE = "localResource"
-
-    /**
-     * Context label for [org.apache.commons.lang3.exception.ContextedException].
-     * Context value is the [okhttp3.HttpUrl] of the remote resource
-     * which is related to the exception cause.
-     */
-    const val EXCEPTION_CONTEXT_REMOTE_RESOURCE = "remoteResource"
-
-}

app/src/main/java/at/bitfire/davdroid/DavService.kt

@@ -1,406 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-package at.bitfire.davdroid
-
-import android.accounts.Account
-import android.app.IntentService
-import android.app.PendingIntent
-import android.content.ContentResolver
-import android.content.Intent
-import android.os.Binder
-import android.os.Bundle
-import androidx.annotation.WorkerThread
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
-import at.bitfire.dav4jvm.DavResource
-import at.bitfire.dav4jvm.Response
-import at.bitfire.dav4jvm.UrlUtils
-import at.bitfire.dav4jvm.exception.HttpException
-import at.bitfire.dav4jvm.property.*
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.model.*
-import at.bitfire.davdroid.model.Collection
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.ui.DebugInfoActivity
-import at.bitfire.davdroid.ui.NotificationUtils
-import okhttp3.HttpUrl
-import okhttp3.OkHttpClient
-import java.lang.ref.WeakReference
-import java.util.*
-import java.util.logging.Level
-import kotlin.collections.*
-
-@Suppress("DEPRECATION")
-class DavService: IntentService("DavService") {
-
-    companion object {
-
-        const val ACTION_REFRESH_COLLECTIONS = "refreshCollections"
-        const val EXTRA_DAV_SERVICE_ID = "davServiceID"
-
-        /** Initialize a forced synchronization. Expects intent data
-            to be an URI of this format:
-            contents://<authority>/<account.type>/<account name>
-         **/
-        const val ACTION_FORCE_SYNC = "forceSync"
-
-        val DAV_COLLECTION_PROPERTIES = arrayOf(
-                ResourceType.NAME,
-                CurrentUserPrivilegeSet.NAME,
-                DisplayName.NAME,
-                Owner.NAME,
-                AddressbookDescription.NAME, SupportedAddressData.NAME,
-                CalendarDescription.NAME, CalendarColor.NAME, SupportedCalendarComponentSet.NAME,
-                Source.NAME
-        )
-
-    }
-
-    /**
-     * List of [Service] IDs for which the collections are currently refreshed
-     */
-    private val runningRefresh = Collections.synchronizedSet(HashSet<Long>())
-
-    /**
-     * Currently registered [RefreshingStatusListener]s, which will be notified
-     * when a collection refresh status changes
-     */
-    private val refreshingStatusListeners = Collections.synchronizedList(LinkedList<WeakReference<RefreshingStatusListener>>())
-
-    @WorkerThread
-    override fun onHandleIntent(intent: Intent?) {
-        if (intent == null)
-            return
-
-        val id = intent.getLongExtra(EXTRA_DAV_SERVICE_ID, -1)
-
-        when (intent.action) {
-            ACTION_REFRESH_COLLECTIONS ->
-                if (runningRefresh.add(id)) {
-                    refreshingStatusListeners.forEach { listener ->
-                        listener.get()?.onDavRefreshStatusChanged(id, true)
-                    }
-
-                    val db = AppDatabase.getInstance(this@DavService)
-                    refreshCollections(db, id)
-                }
-
-            ACTION_FORCE_SYNC -> {
-                val uri = intent.data!!
-                val authority = uri.authority!!
-                val account = Account(
-                        uri.pathSegments[1],
-                        uri.pathSegments[0]
-                )
-                forceSync(authority, account)
-            }
-
-        }
-    }
-
-
-    /* BOUND SERVICE PART
-       for communicating with the activities
-    */
-
-    interface RefreshingStatusListener {
-        fun onDavRefreshStatusChanged(id: Long, refreshing: Boolean)
-    }
-
-    private val binder = InfoBinder()
-
-    inner class InfoBinder: Binder() {
-        fun isRefreshing(id: Long) = runningRefresh.contains(id)
-
-        fun addRefreshingStatusListener(listener: RefreshingStatusListener, callImmediateIfRunning: Boolean) {
-            refreshingStatusListeners += WeakReference<RefreshingStatusListener>(listener)
-            if (callImmediateIfRunning)
-                synchronized(runningRefresh) {
-                    for (id in runningRefresh)
-                        listener.onDavRefreshStatusChanged(id, true)
-                }
-        }
-
-        fun removeRefreshingStatusListener(listener: RefreshingStatusListener) {
-            val iter = refreshingStatusListeners.iterator()
-            while (iter.hasNext()) {
-                val item = iter.next().get()
-                if (item == listener || item == null)
-                    iter.remove()
-            }
-        }
-    }
-
-    override fun onBind(intent: Intent?) = binder
-
-
-
-    /* ACTION RUNNABLES
-       which actually do the work
-     */
-
-    private fun forceSync(authority: String, account: Account) {
-        Logger.log.info("Forcing $authority synchronization of $account")
-        val extras = Bundle(2)
-        extras.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true)        // manual sync
-        extras.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true)     // run immediately (don't queue)
-        ContentResolver.requestSync(account, authority, extras)
-    }
-
-    private fun refreshCollections(db: AppDatabase, serviceId: Long) {
-        val homeSetDao = db.homeSetDao()
-        val collectionDao = db.collectionDao()
-
-        val service = db.serviceDao().get(serviceId) ?: throw IllegalArgumentException("Service not found")
-        val account = Account(service.accountName, getString(R.string.account_type))
-
-        val homeSets = homeSetDao.getByService(serviceId).associateBy { it.url }.toMutableMap()
-        val collections = collectionDao.getByService(serviceId).associateBy { it.url }.toMutableMap()
-
-        /**
-         * Checks if the given URL defines home sets and adds them to the home set list.
-         *
-         * @param personal Whether this is the "outer" call of the recursion.
-         *
-         * *true* = found home sets belong to the current-user-principal; recurse if
-         * calendar proxies or group memberships are found
-         *
-         * *false* = found home sets don't directly belong to the current-user-principal; don't recurse
-         *
-         * @throws java.io.IOException
-         * @throws HttpException
-         * @throws at.bitfire.dav4jvm.exception.DavException
-         */
-        fun queryHomeSets(client: OkHttpClient, url: HttpUrl, personal: Boolean = true) {
-            val related = mutableSetOf<HttpUrl>()
-
-            fun findRelated(root: HttpUrl, dav: Response) {
-                // refresh home sets: calendar-proxy-read/write-for
-                dav[CalendarProxyReadFor::class.java]?.let {
-                    for (href in it.hrefs) {
-                        Logger.log.fine("Principal is a read-only proxy for $href, checking for home sets")
-                        root.resolve(href)?.let { proxyReadFor ->
-                            related += proxyReadFor
-                        }
-                    }
-                }
-                dav[CalendarProxyWriteFor::class.java]?.let {
-                    for (href in it.hrefs) {
-                        Logger.log.fine("Principal is a read/write proxy for $href, checking for home sets")
-                        root.resolve(href)?.let { proxyWriteFor ->
-                            related += proxyWriteFor
-                        }
-                    }
-                }
-
-                // refresh home sets: direct group memberships
-                dav[GroupMembership::class.java]?.let {
-                    for (href in it.hrefs) {
-                        Logger.log.fine("Principal is member of group $href, checking for home sets")
-                        root.resolve(href)?.let { groupMembership ->
-                            related += groupMembership
-                        }
-                    }
-                }
-            }
-
-            val dav = DavResource(client, url)
-            when (service.type) {
-                Service.TYPE_CARDDAV ->
-                    try {
-                        dav.propfind(0, DisplayName.NAME, AddressbookHomeSet.NAME, GroupMembership.NAME) { response, _ ->
-                            response[AddressbookHomeSet::class.java]?.let { homeSet ->
-                                for (href in homeSet.hrefs)
-                                    dav.location.resolve(href)?.let {
-                                        val foundUrl = UrlUtils.withTrailingSlash(it)
-                                        homeSets[foundUrl] = HomeSet(0, service.id, personal, foundUrl)
-                                    }
-                            }
-
-                            if (personal)
-                                findRelated(dav.location, response)
-                        }
-                    } catch (e: HttpException) {
-                        if (e.code/100 == 4)
-                            Logger.log.log(Level.INFO, "Ignoring Client Error 4xx while looking for addressbook home sets", e)
-                        else
-                            throw e
-                    }
-                Service.TYPE_CALDAV -> {
-                    try {
-                        dav.propfind(0, DisplayName.NAME, CalendarHomeSet.NAME, CalendarProxyReadFor.NAME, CalendarProxyWriteFor.NAME, GroupMembership.NAME) { response, _ ->
-                            response[CalendarHomeSet::class.java]?.let { homeSet ->
-                                for (href in homeSet.hrefs)
-                                    dav.location.resolve(href)?.let {
-                                        val foundUrl = UrlUtils.withTrailingSlash(it)
-                                        homeSets[foundUrl] = HomeSet(0, service.id, personal, foundUrl)
-                                    }
-                            }
-
-                            if (personal)
-                                findRelated(dav.location, response)
-                        }
-                    } catch (e: HttpException) {
-                        if (e.code/100 == 4)
-                            Logger.log.log(Level.INFO, "Ignoring Client Error 4xx while looking for calendar home sets", e)
-                        else
-                            throw e
-                    }
-                }
-            }
-
-            // query related homesets (those that do not belong to the current-user-principal)
-            for (resource in related)
-                queryHomeSets(client, resource, false)
-        }
-
-        fun saveHomesets() {
-            DaoTools(homeSetDao).syncAll(
-                    homeSetDao.getByService(serviceId),
-                    homeSets,
-                    { it.url })
-        }
-
-        fun saveCollections() {
-            DaoTools(collectionDao).syncAll(
-                    collectionDao.getByService(serviceId),
-                    collections, { it.url }) { new, old ->
-                new.forceReadOnly = old.forceReadOnly
-                new.sync = old.sync
-            }
-        }
-
-        try {
-            Logger.log.info("Refreshing ${service.type} collections of service #$service")
-
-            // cancel previous notification
-            NotificationManagerCompat.from(this)
-                    .cancel(service.toString(), NotificationUtils.NOTIFY_REFRESH_COLLECTIONS)
-
-            // create authenticating OkHttpClient (credentials taken from account settings)
-            HttpClient.Builder(this, AccountSettings(this, account))
-                    .setForeground(true)
-                    .build().use { client ->
-                val httpClient = client.okHttpClient
-
-                // refresh home set list (from principal)
-                service.principal?.let { principalUrl ->
-                    Logger.log.fine("Querying principal $principalUrl for home sets")
-                    queryHomeSets(httpClient, principalUrl)
-                }
-
-                // now refresh homesets and their member collections
-                val itHomeSets = homeSets.iterator()
-                while (itHomeSets.hasNext()) {
-                    val (homeSetUrl, homeSet) = itHomeSets.next()
-                    Logger.log.fine("Listing home set $homeSetUrl")
-
-                    try {
-                        DavResource(httpClient, homeSetUrl).propfind(1, *DAV_COLLECTION_PROPERTIES) { response, relation ->
-                            if (!response.isSuccess())
-                                return@propfind
-
-                            if (relation == Response.HrefRelation.SELF) {
-                                // this response is about the homeset itself
-                                homeSet.displayName = response[DisplayName::class.java]?.displayName
-                                homeSet.privBind = response[CurrentUserPrivilegeSet::class.java]?.mayBind ?: true
-                            }
-
-                            // in any case, check whether the response is about a useable collection
-                            val info = Collection.fromDavResponse(response) ?: return@propfind
-                            info.serviceId = serviceId
-                            info.refHomeSet = homeSet
-                            info.confirmed = true
-                            info.owner = response[Owner::class.java]?.href?.let { response.href.resolve(it) }
-                            Logger.log.log(Level.FINE, "Found collection", info)
-
-                            // remember usable collections
-                            if ((service.type == Service.TYPE_CARDDAV && info.type == Collection.TYPE_ADDRESSBOOK) ||
-                                    (service.type == Service.TYPE_CALDAV && arrayOf(Collection.TYPE_CALENDAR, Collection.TYPE_WEBCAL).contains(info.type)))
-                                collections[response.href] = info
-                        }
-                    } catch(e: HttpException) {
-                        if (e.code in arrayOf(403, 404, 410))
-                            // delete home set only if it was not accessible (40x)
-                            itHomeSets.remove()
-                    }
-                }
-
-                // check/refresh unconfirmed collections
-                val itCollections = collections.entries.iterator()
-                while (itCollections.hasNext()) {
-                    val (url, info) = itCollections.next()
-                    if (!info.confirmed)
-                        try {
-                            // this collection doesn't belong to a homeset anymore, otherwise it would have been confirmed
-                            info.homeSetId = null
-
-                            DavResource(httpClient, url).propfind(0, *DAV_COLLECTION_PROPERTIES) { response, _ ->
-                                if (!response.isSuccess())
-                                    return@propfind
-
-                                val collection = Collection.fromDavResponse(response) ?: return@propfind
-                                collection.confirmed = true
-
-                                // remove unusable collections
-                                if ((service.type == Service.TYPE_CARDDAV && collection.type != Collection.TYPE_ADDRESSBOOK) ||
-                                    (service.type == Service.TYPE_CALDAV && !arrayOf(Collection.TYPE_CALENDAR, Collection.TYPE_WEBCAL).contains(collection.type)) ||
-                                    (collection.type == Collection.TYPE_WEBCAL && collection.source == null))
-                                    itCollections.remove()
-                            }
-                        } catch(e: HttpException) {
-                            if (e.code in arrayOf(403, 404, 410))
-                                // delete collection only if it was not accessible (40x)
-                                itCollections.remove()
-                            else
-                                throw e
-                        }
-                }
-            }
-
-            db.runInTransaction {
-                saveHomesets()
-
-                // use refHomeSet (if available) to determine homeset ID
-                for (collection in collections.values)
-                    collection.refHomeSet?.let { homeSet ->
-                        collection.homeSetId = homeSet.id
-                    }
-                saveCollections()
-            }
-
-        } catch(e: InvalidAccountException) {
-            Logger.log.log(Level.SEVERE, "Invalid account", e)
-        } catch(e: Exception) {
-            Logger.log.log(Level.SEVERE, "Couldn't refresh collection list", e)
-
-            val debugIntent = Intent(this, DebugInfoActivity::class.java)
-            debugIntent.putExtra(DebugInfoActivity.EXTRA_CAUSE, e)
-            debugIntent.putExtra(DebugInfoActivity.EXTRA_ACCOUNT, account)
-
-            val notify = NotificationUtils.newBuilder(this, NotificationUtils.CHANNEL_GENERAL)
-                    .setSmallIcon(R.drawable.ic_sync_problem_notify)
-                    .setContentTitle(getString(R.string.dav_service_refresh_failed))
-                    .setContentText(getString(R.string.dav_service_refresh_couldnt_refresh))
-                    .setContentIntent(PendingIntent.getActivity(this, 0, debugIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE))
-                    .setSubText(account.name)
-                    .setCategory(NotificationCompat.CATEGORY_ERROR)
-                    .build()
-            NotificationManagerCompat.from(this)
-                    .notify(serviceId.toString(), NotificationUtils.NOTIFY_REFRESH_COLLECTIONS, notify)
-        } finally {
-            runningRefresh.remove(serviceId)
-            refreshingStatusListeners.mapNotNull { it.get() }.forEach {
-                it.onDavRefreshStatusChanged(serviceId, false)
-            }
-        }
-
-    }
-
-}

app/src/main/java/at/bitfire/davdroid/DavUtils.kt

@@ -1,206 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-package at.bitfire.davdroid
-
-import android.accounts.Account
-import android.annotation.TargetApi
-import android.content.ContentResolver
-import android.content.Context
-import android.net.ConnectivityManager
-import android.os.Build
-import android.os.Bundle
-import android.provider.CalendarContract
-import android.provider.ContactsContract
-import androidx.core.content.getSystemService
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.resource.LocalAddressBook
-import at.bitfire.davdroid.resource.TaskUtils
-import okhttp3.HttpUrl
-import org.xbill.DNS.*
-import java.util.*
-
-/**
- * Some WebDAV and related network utility methods
- */
-object DavUtils {
-
-    enum class SyncStatus {
-        ACTIVE, PENDING, IDLE
-    }
-
-    const val MIME_TYPE_ALL = "*/*"
-
-
-    @Suppress("FunctionName")
-    fun ARGBtoCalDAVColor(colorWithAlpha: Int): String {
-        val alpha = (colorWithAlpha shr 24) and 0xFF
-        val color = colorWithAlpha and 0xFFFFFF
-        return String.format(Locale.ROOT, "#%06X%02X", color, alpha)
-    }
-
-
-    fun lastSegmentOfUrl(url: HttpUrl): String {
-        // the list returned by HttpUrl.pathSegments() is unmodifiable, so we have to create a copy
-        val segments = LinkedList(url.pathSegments)
-        segments.reverse()
-
-        return segments.firstOrNull { it.isNotEmpty() } ?: "/"
-    }
-
-
-    fun prepareLookup(context: Context, lookup: Lookup) {
-        @TargetApi(Build.VERSION_CODES.O)
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            /* Since Android 8, the system properties net.dns1, net.dns2, ... are not available anymore.
-               The current version of dnsjava relies on these properties to find the default name servers,
-               so we have to add the servers explicitly (fortunately, there's an Android API to
-               get the active DNS servers). */
-            val connectivity = context.getSystemService<ConnectivityManager>()!!
-            val activeLink = connectivity.getLinkProperties(connectivity.activeNetwork)
-            if (activeLink != null) {
-                // get DNS servers of active network link and set them for dnsjava so that it can send SRV queries
-                val simpleResolvers = activeLink.dnsServers.map {
-                    Logger.log.fine("Using DNS server ${it.hostAddress}")
-                    val resolver = SimpleResolver()
-                    resolver.setAddress(it)
-                    resolver
-                }
-                val resolver = ExtendedResolver(simpleResolvers.toTypedArray())
-                lookup.setResolver(resolver)
-            } else
-                Logger.log.severe("Couldn't determine DNS servers, dnsjava queries (SRV/TXT records) won't work")
-        }
-    }
-
-    fun selectSRVRecord(records: Array<out Record>?): SRVRecord? {
-        if (records == null)
-            return null
-
-        val srvRecords = records.filterIsInstance(SRVRecord::class.java)
-        if (srvRecords.size <= 1)
-            return srvRecords.firstOrNull()
-
-        /* RFC 2782
-
-           Priority
-                The priority of this target host.  A client MUST attempt to
-                contact the target host with the lowest-numbered priority it can
-                reach; target hosts with the same priority SHOULD be tried in an
-                order defined by the weight field. [...]
-
-           Weight
-                A server selection mechanism.  The weight field specifies a
-                relative weight for entries with the same priority. [...]
-
-                To select a target to be contacted next, arrange all SRV RRs
-                (that have not been ordered yet) in any order, except that all
-                those with weight 0 are placed at the beginning of the list.
-
-                Compute the sum of the weights of those RRs, and with each RR
-                associate the running sum in the selected order. Then choose a
-                uniform random number between 0 and the sum computed
-                (inclusive), and select the RR whose running sum value is the
-                first in the selected order which is greater than or equal to
-                the random number selected. The target host specified in the
-                selected SRV RR is the next one to be contacted by the client.
-        */
-        val minPriority = srvRecords.map { it.priority }.minOrNull()
-        val useableRecords = srvRecords.filter { it.priority == minPriority }.sortedBy { it.weight != 0 }
-
-        val map = TreeMap<Int, SRVRecord>()
-        var runningWeight = 0
-        for (record in useableRecords) {
-            val weight = record.weight
-            runningWeight += weight
-            map[runningWeight] = record
-        }
-
-        val selector = (0..runningWeight).random()
-        return map.ceilingEntry(selector)!!.value
-    }
-
-    fun pathsFromTXTRecords(records: Array<Record>?): List<String> {
-        val paths = LinkedList<String>()
-        records?.filterIsInstance(TXTRecord::class.java)?.forEach { txt ->
-            @Suppress("UNCHECKED_CAST")
-            for (segment in txt.strings as List<String>)
-                if (segment.startsWith("path=")) {
-                    paths.add(segment.substring(5))
-                    break
-                }
-        }
-        return paths
-    }
-
-
-    /**
-     * Returns the sync status of a given account. Checks the account itself and possible
-     * sub-accounts (address book accounts).
-     *
-     * @param authorities sync authorities to check (usually taken from [syncAuthorities])
-     *
-     * @return sync status of the given account
-     */
-    fun accountSyncStatus(context: Context, authorities: Iterable<String>, account: Account): SyncStatus {
-        // check active syncs
-        if (authorities.any { ContentResolver.isSyncActive(account, it) })
-            return SyncStatus.ACTIVE
-
-        val addrBookAccounts = LocalAddressBook.findAll(context, null, account).map { it.account }
-        if (addrBookAccounts.any { ContentResolver.isSyncActive(it, ContactsContract.AUTHORITY) })
-            return SyncStatus.ACTIVE
-
-        // check get pending syncs
-        if (authorities.any { ContentResolver.isSyncPending(account, it) } ||
-            addrBookAccounts.any { ContentResolver.isSyncPending(it, ContactsContract.AUTHORITY) })
-            return SyncStatus.PENDING
-
-        return SyncStatus.IDLE
-    }
-
-    /**
-     * Requests an immediate, manual sync of all available authorities for the given account.
-     *
-     * @param account account to sync
-     */
-    fun requestSync(context: Context, account: Account) {
-        for (authority in syncAuthorities(context)) {
-            val extras = Bundle(2)
-            extras.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true)        // manual sync
-            extras.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true)     // run immediately (don't queue)
-            ContentResolver.requestSync(account, authority, extras)
-        }
-    }
-
-    /**
-     * Returns a list of all available sync authorities for main accounts (!= address book accounts):
-     *
-     *   1. address books authority (not [ContactsContract.AUTHORITY], but the one which manages address book accounts)
-     *   1. calendar authority
-     *   1. tasks authority (if available)
-     *
-     * Checking the availability of authorities may be relatively expensive, so the
-     * result should be cached for the current operation.
-     *
-     * @return list of available sync authorities for main accounts
-     */
-    fun syncAuthorities(context: Context): List<String> {
-        val result = mutableListOf(
-                context.getString(R.string.address_books_authority),
-                CalendarContract.AUTHORITY
-        )
-
-        TaskUtils.currentProvider(context)?.let { taskProvider ->
-            result += taskProvider.authority
-        }
-
-        return result
-    }
-
-}

app/src/main/java/at/bitfire/davdroid/ForegroundService.kt

@@ -1,62 +0,0 @@
-package at.bitfire.davdroid
-
-import android.app.PendingIntent
-import android.app.Service
-import android.content.Context
-import android.content.Intent
-import android.os.Build
-import androidx.core.app.NotificationCompat
-import at.bitfire.davdroid.settings.Settings
-import at.bitfire.davdroid.settings.SettingsManager
-import at.bitfire.davdroid.ui.AppSettingsActivity
-import at.bitfire.davdroid.ui.NotificationUtils
-
-class ForegroundService : Service() {
-
-    companion object {
-
-        /**
-         * Starts/stops a foreground service, according to the app setting [Settings.FOREGROUND_SERVICE].
-         */
-        const val ACTION_FOREGROUND = "foreground"
-
-        fun isEnabled(context: Context): Boolean {
-            val settings = SettingsManager.getInstance(context)
-            return settings.getBooleanOrNull(Settings.FOREGROUND_SERVICE) == true
-        }
-
-        fun startIfEnabled(context: Context) {
-            if (isEnabled(context)) {
-                val serviceIntent = Intent(ACTION_FOREGROUND, null, context, ForegroundService::class.java)
-                if (Build.VERSION.SDK_INT >= 26)
-                    context.startForegroundService(serviceIntent)
-                else
-                    context.startService(serviceIntent)
-            }
-        }
-
-    }
-
-
-    override fun onBind(intent: Intent?): Nothing? = null
-
-    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
-        if (isEnabled(this)) {
-            val settingsIntent = Intent(this, AppSettingsActivity::class.java).apply {
-                putExtra(AppSettingsActivity.EXTRA_SCROLL_TO, Settings.FOREGROUND_SERVICE)
-            }
-            val builder = NotificationCompat.Builder(this, NotificationUtils.CHANNEL_STATUS)
-                    .setSmallIcon(R.drawable.ic_foreground_notify)
-                    .setContentTitle(getString(R.string.foreground_service_notify_title))
-                    .setContentText(getString(R.string.foreground_service_notify_text))
-                    .setStyle(NotificationCompat.BigTextStyle())
-                    .setContentIntent(PendingIntent.getActivity(this, 0, settingsIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE))
-            startForeground(NotificationUtils.NOTIFY_FOREGROUND, builder.build())
-            return START_STICKY
-        } else {
-            stopForeground(true)
-            return START_NOT_STICKY
-        }
-    }
-
-}

app/src/main/java/at/bitfire/davdroid/HttpClient.kt

@@ -1,268 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-package at.bitfire.davdroid
-
-import android.content.Context
-import android.os.Build
-import android.security.KeyChain
-import at.bitfire.cert4android.CustomCertManager
-import at.bitfire.dav4jvm.BasicDigestAuthHandler
-import at.bitfire.dav4jvm.UrlUtils
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.model.Credentials
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.settings.Settings
-import at.bitfire.davdroid.settings.SettingsManager
-import okhttp3.*
-import okhttp3.brotli.BrotliInterceptor
-import okhttp3.internal.tls.OkHostnameVerifier
-import okhttp3.logging.HttpLoggingInterceptor
-import java.io.File
-import java.net.InetSocketAddress
-import java.net.Proxy
-import java.net.Socket
-import java.security.KeyStore
-import java.security.Principal
-import java.text.SimpleDateFormat
-import java.util.*
-import java.util.concurrent.TimeUnit
-import java.util.logging.Level
-import javax.net.ssl.*
-
-class HttpClient private constructor(
-        val okHttpClient: OkHttpClient,
-        private val certManager: CustomCertManager?
-): AutoCloseable {
-
-    companion object {
-        /** max. size of disk cache (10 MB) */
-        const val DISK_CACHE_MAX_SIZE: Long = 10*1024*1024
-
-        /** [OkHttpClient] singleton to build all clients from */
-        val sharedClient: OkHttpClient = OkHttpClient.Builder()
-                // Set timeouts. According to [AbstractThreadedSyncAdapter], when there is no network
-                // traffic within a minute, a sync will be cancelled.
-                .connectTimeout(15, TimeUnit.SECONDS)
-                .writeTimeout(30, TimeUnit.SECONDS)
-                .readTimeout(120, TimeUnit.SECONDS)
-                .pingInterval(45, TimeUnit.SECONDS)     // avoid cancellation because of missing traffic; only works for HTTP/2
-
-                // keep TLS 1.0 and 1.1 for now; remove when major browsers have dropped it (probably 2020)
-                .connectionSpecs(listOf(
-                        ConnectionSpec.CLEARTEXT,
-                        ConnectionSpec.COMPATIBLE_TLS
-                ))
-
-                // don't allow redirects by default, because it would break PROPFIND handling
-                .followRedirects(false)
-
-                // add User-Agent to every request
-                .addInterceptor(UserAgentInterceptor)
-
-                .build()
-    }
-
-
-    override fun close() {
-        okHttpClient.cache?.close()
-        certManager?.close()
-    }
-
-    class Builder(
-            val context: Context? = null,
-            accountSettings: AccountSettings? = null,
-            val logger: java.util.logging.Logger? = Logger.log,
-            val loggerLevel: HttpLoggingInterceptor.Level = HttpLoggingInterceptor.Level.BODY
-    ) {
-        private var certManager: CustomCertManager? = null
-        private var certificateAlias: String? = null
-        private var offerCompression: Boolean = false
-
-        // default cookie store for non-persistent cookies (some services like Horde use cookies for session tracking)
-        private var cookieStore: CookieJar? = MemoryCookieStore()
-
-        private val orig = sharedClient.newBuilder()
-
-        init {
-            // add network logging, if requested
-            if (logger != null && logger.isLoggable(Level.FINEST)) {
-                val loggingInterceptor = HttpLoggingInterceptor { message -> logger.finest(message) }
-                loggingInterceptor.level = loggerLevel
-                orig.addNetworkInterceptor(loggingInterceptor)
-            }
-
-            if (context != null) {
-                val settings = SettingsManager.getInstance(context)
-
-                // custom proxy support
-                try {
-                    if (settings.getBoolean(Settings.OVERRIDE_PROXY)) {
-                        val address = InetSocketAddress(
-                                settings.getString(Settings.OVERRIDE_PROXY_HOST),
-                                settings.getInt(Settings.OVERRIDE_PROXY_PORT)
-                        )
-
-                        val proxy = Proxy(Proxy.Type.HTTP, address)
-                        orig.proxy(proxy)
-                        Logger.log.log(Level.INFO, "Using proxy", proxy)
-                    }
-                } catch (e: Exception) {
-                    Logger.log.log(Level.SEVERE, "Can't set proxy, ignoring", e)
-                }
-
-                // TODO don't instantiate CustomCertManager in .Builder (causes service leaks)
-                customCertManager(CustomCertManager(context, true /*BuildConfig.customCertsUI*/,
-                        !(settings.getBoolean(Settings.DISTRUST_SYSTEM_CERTIFICATES))))
-            }
-
-            // use account settings for authentication and cookies
-            accountSettings?.let {
-                addAuthentication(null, it.credentials())
-            }
-        }
-
-        constructor(context: Context, host: String?, credentials: Credentials?): this(context) {
-            if (credentials != null)
-                addAuthentication(host, credentials)
-        }
-
-        fun addAuthentication(host: String?, credentials: Credentials, insecurePreemptive: Boolean = false): Builder {
-            if (credentials.userName != null && credentials.password != null) {
-                val authHandler = BasicDigestAuthHandler(UrlUtils.hostToDomain(host), credentials.userName, credentials.password, insecurePreemptive)
-                orig.addNetworkInterceptor(authHandler)
-                    .authenticator(authHandler)
-            }
-            if (credentials.certificateAlias != null)
-                certificateAlias = credentials.certificateAlias
-            return this
-        }
-
-        fun allowCompression(allow: Boolean): Builder {
-            offerCompression = allow
-            return this
-        }
-
-        fun cookieStore(store: CookieJar?): Builder {
-            cookieStore = store
-            return this
-        }
-
-        fun followRedirects(follow: Boolean): Builder {
-            orig.followRedirects(follow)
-            return this
-        }
-
-        fun customCertManager(manager: CustomCertManager) {
-            certManager = manager
-        }
-        fun setForeground(foreground: Boolean): Builder {
-            certManager?.appInForeground = foreground
-            return this
-        }
-
-        fun withDiskCache(context: Context): Builder {
-            for (dir in arrayOf(context.externalCacheDir, context.cacheDir).filterNotNull()) {
-                if (dir.exists() && dir.canWrite()) {
-                    val cacheDir = File(dir, "HttpClient")
-                    cacheDir.mkdir()
-                    Logger.log.fine("Using disk cache: $cacheDir")
-                    orig.cache(Cache(cacheDir, DISK_CACHE_MAX_SIZE))
-                    break
-                }
-            }
-            return this
-        }
-
-        fun build(): HttpClient {
-            cookieStore?.let {
-                orig.cookieJar(it)
-            }
-
-            if (offerCompression)
-                // offer Brotli and gzip compression
-                orig.addInterceptor(BrotliInterceptor)
-
-            val trustManager = certManager ?: run {
-                val factory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
-                factory.init(null as KeyStore?)
-                factory.trustManagers.first() as X509TrustManager
-            }
-
-            val hostnameVerifier = certManager?.hostnameVerifier(OkHostnameVerifier)
-                    ?: OkHostnameVerifier
-
-            var keyManager: KeyManager? = null
-            certificateAlias?.let { alias ->
-                val context = requireNotNull(context)
-
-                // get provider certificate and private key
-                val certs = KeyChain.getCertificateChain(context, alias) ?: return@let
-                val key = KeyChain.getPrivateKey(context, alias) ?: return@let
-                logger?.fine("Using provider certificate $alias for authentication (chain length: ${certs.size})")
-
-                // create KeyManager
-                keyManager = object : X509ExtendedKeyManager() {
-                    override fun getServerAliases(p0: String?, p1: Array<out Principal>?): Array<String>? = null
-                    override fun chooseServerAlias(p0: String?, p1: Array<out Principal>?, p2: Socket?) = null
-
-                    override fun getClientAliases(p0: String?, p1: Array<out Principal>?) =
-                            arrayOf(alias)
-
-                    override fun chooseClientAlias(p0: Array<out String>?, p1: Array<out Principal>?, p2: Socket?) =
-                            alias
-
-                    override fun getCertificateChain(forAlias: String?) =
-                            certs.takeIf { forAlias == alias }
-
-                    override fun getPrivateKey(forAlias: String?) =
-                            key.takeIf { forAlias == alias }
-                }
-
-                // HTTP/2 doesn't support client certificates (yet)
-                // see https://tools.ietf.org/html/draft-ietf-httpbis-http2-secondary-certs-04
-                orig.protocols(listOf(Protocol.HTTP_1_1))
-            }
-
-            val sslContext = SSLContext.getInstance("TLS")
-            sslContext.init(
-                    if (keyManager != null) arrayOf(keyManager) else null,
-                    arrayOf(trustManager),
-                    null)
-            orig.sslSocketFactory(sslContext.socketFactory, trustManager)
-            orig.hostnameVerifier(hostnameVerifier)
-
-            return HttpClient(orig.build(), certManager)
-        }
-
-    }
-
-
-    private object UserAgentInterceptor: Interceptor {
-        // use Locale.ROOT because numbers may be encoded as non-ASCII characters in other locales
-        private val userAgentDateFormat = SimpleDateFormat("yyyy/MM/dd", Locale.ROOT)
-        private val userAgentDate = userAgentDateFormat.format(Date(BuildConfig.buildTime))
-        private val userAgent = "${BuildConfig.userAgent}/${BuildConfig.VERSION_NAME} ($userAgentDate; dav4jvm; " +
-                "okhttp/${OkHttp.VERSION}) Android/${Build.VERSION.RELEASE}"
-
-        init {
-            Logger.log.info("Will set \"User-Agent: $userAgent\" for further requests")
-        }
-
-        override fun intercept(chain: Interceptor.Chain): Response {
-            val locale = Locale.getDefault()
-            val request = chain.request().newBuilder()
-                    .header("User-Agent", userAgent)
-                    .header("Accept-Language", "${locale.language}-${locale.country}, ${locale.language};q=0.7, *;q=0.5")
-                    .build()
-            return chain.proceed(request)
-        }
-
-    }
-
-}

app/src/main/java/at/bitfire/davdroid/InvalidAccountException.kt

@@ -1,13 +0,0 @@
-/*
- * Copyright © Ricki Hirner (bitfire web engineering).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- */
-
-package at.bitfire.davdroid
-
-import android.accounts.Account
-
-class InvalidAccountException(account: Account): Exception("Invalid account: $account")