shelfmark/tests

Test Suite

This directory contains the test suite for CWA Book Downloader. Tests are organized by scope and component.

Quick Start

# Run all unit tests (fast, no external dependencies)
docker exec test-cwabd python3 -m pytest tests/ -v -m "not integration and not e2e"

# Run E2E API tests
docker exec test-cwabd python3 -m pytest tests/e2e/ -v -m e2e

# Run everything except integration tests
docker exec test-cwabd python3 -m pytest tests/ -v -m "not integration"

Test Structure

tests/
├── e2e/                    # End-to-end API tests
│   ├── conftest.py         # Fixtures (APIClient, DownloadTracker)
│   ├── test_api.py         # Core API endpoint tests
│   ├── test_download_flow.py   # Full download journey tests
│   └── test_prowlarr_flow.py   # Prowlarr-specific tests
│
├── prowlarr/               # Prowlarr plugin tests
│   ├── conftest.py         # Shared fixtures
│   ├── test_clients.py     # DownloadClient base, registry, DownloadStatus
│   ├── test_qbittorrent_client.py  # qBittorrent client unit tests
│   ├── test_transmission_client.py # Transmission client unit tests
│   ├── test_nzbget_client.py       # NZBGet client unit tests
│   ├── test_sabnzbd_client.py      # SABnzbd client unit tests
│   ├── test_handler.py     # ProwlarrHandler unit tests
│   ├── test_torrent_utils.py   # Bencode, hash extraction, URL parsing
│   ├── test_bencode.py     # Bencode encoding/decoding
│   ├── test_source.py      # Release source (size parsing, format detection)
│   ├── test_cache.py       # Release cache
│   ├── test_integration_clients.py  # Integration tests (require Docker stack)
│   └── test_integration_handler.py  # Handler integration tests
│
└── README.md               # This file

Test Types

Unit Tests

Fast tests that mock external dependencies. Run these frequently during development.

docker exec test-cwabd python3 -m pytest tests/prowlarr/ -v -m "not integration"

What they test:

• Download client logic (status mapping, URL handling, error cases)
• Bencode encoding/decoding for torrent files
• Hash extraction from magnet links and .torrent files
• Protocol detection (torrent vs usenet)
• Release cache operations
• Handler download flow logic

E2E Tests

Test the full application through its HTTP API. Require the app to be running.

docker exec test-cwabd python3 -m pytest tests/e2e/ -v -m e2e

What they test:

• Health check endpoint
• Configuration endpoint
• Metadata provider search (Hardcover, etc.)
• Release source listing
• Download queue operations (add, cancel, reorder, clear)
• Settings API
• Prowlarr integration

Integration Tests

Test against real services (qBittorrent, Transmission, etc.). Require the full Docker test stack.

# Start the test stack first
docker compose -f docker-compose.test-clients.yml up -d

# Run integration tests
docker exec test-cwabd python3 -m pytest tests/prowlarr/ -v -m integration

What they test:

• Real connections to download clients
• Adding/removing actual torrents
• Status polling from real clients

Test Markers

Marker	Description	When to Skip
integration	Requires running services (qBittorrent, etc.)	Default skip with -m "not integration"
e2e	End-to-end API tests	When app isn't running
slow	Tests that take longer (network calls, polling)	Quick feedback with -m "not slow"

Common Commands

# Run specific test file
docker exec test-cwabd python3 -m pytest tests/prowlarr/test_clients.py -v

# Run specific test class
docker exec test-cwabd python3 -m pytest tests/e2e/test_api.py::TestHealthEndpoint -v

# Run specific test
docker exec test-cwabd python3 -m pytest tests/e2e/test_api.py::TestHealthEndpoint::test_health_returns_ok -v

# Run with short traceback (cleaner output)
docker exec test-cwabd python3 -m pytest tests/ -v --tb=short -m "not integration"

# Run and stop on first failure
docker exec test-cwabd python3 -m pytest tests/ -v -x -m "not integration"

# Run with coverage (if pytest-cov installed)
docker exec test-cwabd python3 -m pytest tests/ --cov=cwa_book_downloader -m "not integration"

Writing New Tests

Unit Test Example

from unittest.mock import MagicMock, patch

class TestMyFeature:
    def test_something(self, monkeypatch):
        # Mock config values
        monkeypatch.setattr(
            "cwa_book_downloader.module.config.get",
            lambda key, default="": {"KEY": "value"}.get(key, default),
        )

        # Test your code
        result = my_function()
        assert result == expected

E2E Test Example

import pytest
from .conftest import APIClient, DownloadTracker

@pytest.mark.e2e
class TestMyEndpoint:
    def test_endpoint_works(self, api_client: APIClient):
        resp = api_client.get("/api/my-endpoint")
        assert resp.status_code == 200

    def test_with_cleanup(self, api_client: APIClient, download_tracker: DownloadTracker):
        # Track IDs for automatic cleanup after test
        download_tracker.track("some-id")
        # ... test code ...

Test Fixtures

E2E Fixtures (tests/e2e/conftest.py)

Fixture	Scope	Description
api_client	session	HTTP client for API calls
download_tracker	function	Tracks downloads for cleanup
server_config	session	Cached server configuration

Prowlarr Fixtures (tests/prowlarr/conftest.py)

Fixture	Scope	Description
transmission_client	module	Real Transmission client (integration)
qbittorrent_client	module	Real qBittorrent client (integration)
deluge_client	module	Real Deluge client (integration)
nzbget_client	module	Real NZBGet client (integration)
sabnzbd_client	module	Real SABnzbd client (integration)

Expected Skips

Some tests skip when external services aren't available. This is normal:

• "No metadata providers available" - Metadata provider not responding
• "Prowlarr not configured" - Prowlarr settings not set up
• "No releases found" - No indexers configured in Prowlarr
• "Legacy search source unavailable" - Direct download source offline
• "Transmission/qBittorrent not available" - Docker test stack not running

Troubleshooting

Tests can't connect to app

# Check the app is running
docker ps | grep test-cwabd

# Check app logs
docker logs test-cwabd

Import errors

# Make sure you're running inside the container
docker exec test-cwabd python3 -m pytest ...

# Not from your local machine
pytest ...  # This won't work

Integration tests failing

# Make sure test stack is running
docker compose -f docker-compose.test-clients.yml up -d

# Check client containers
docker ps | grep -E "qbittorrent|transmission|deluge|nzbget|sabnzbd"

Stale test data

# Clear the queue between test runs
docker exec test-cwabd python3 -c "
from cwa_book_downloader.core.queue import book_queue
book_queue.clear()
"