diff --git a/tests/meson.build b/tests/meson.build
index 8b6aa2d9..852eceab 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -359,6 +359,7 @@ foreach testcase : wrapped_tests
     'test-summaries.sh' : 60,
     'test-unused.sh' : 90,
     'test-update-portal.sh' : 90,
+    'test-extra-data.sh' : 90,
   }.get(script, 30)
 
   is_parallel = {
diff --git a/tests/test-extra-data.sh b/tests/test-extra-data.sh
new file mode 100755
index 00000000..8bac805b
--- /dev/null
+++ b/tests/test-extra-data.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+#
+# Copyright (C) 2025 Red Hat, Inc
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+set -euo pipefail
+
+. "$(dirname $0)/libtest.sh"
+
+skip_without_bwrap
+
+REPONAME="test"
+BRANCH="master"
+COLLECTION_ID="org.test.Collection.${REPONAME}"
+
+setup_repo ${REPONAME} ${COLLECTION_ID}
+
+# create the extra data
+EXTRA_DATA_FILE="extra-data-test"
+EXTRA_DATA_DIR="${TEST_DATA_DIR}/extra-data-server/"
+mkdir -p "${EXTRA_DATA_DIR}"
+echo "extra-data-test-content" > "${EXTRA_DATA_DIR}/${EXTRA_DATA_FILE}"
+
+# serve the extra data
+httpd web-server.py "${EXTRA_DATA_DIR}"
+EXTRA_DATA_URL="http://127.0.0.1:$(cat httpd-port)/${EXTRA_DATA_FILE}"
+
+# download to get the size and sha256 sum
+DOWNLOADED_EXTRA_DATA="${TEST_DATA_DIR}/downloaded-extra-data"
+curl "${EXTRA_DATA_URL}" -o "${DOWNLOADED_EXTRA_DATA}"
+EXTRA_DATA_SIZE=$(stat --printf="%s" "${DOWNLOADED_EXTRA_DATA}")
+EXTRA_DATA_SHA256=$(sha256sum "${DOWNLOADED_EXTRA_DATA}" | cut -f1 -d' ')
+
+echo "1..2"
+
+# build the app with the extra data
+EXTRA_DATA="--extra-data=test:${EXTRA_DATA_SHA256}:${EXTRA_DATA_SIZE}:${EXTRA_DATA_SIZE}:${EXTRA_DATA_URL}"
+BUILD_FINISH_ARGS=${EXTRA_DATA} make_updated_app ${REPONAME} ${COLLECTION_ID} ${BRANCH} UPDATE1
+
+# ensure it installs correctly
+install_repo ${REPONAME} ${BRANCH}
+
+# ensure the right extra-data got downloaded
+${FLATPAK} run --command=sh org.test.Hello -c "cat /app/extra/test" > out
+assert_file_has_content out "extra-data-test-content"
+
+${FLATPAK} ${U} uninstall -y org.test.Hello >&2
+
+ok "install extra data app with ostree"
+
+# Start the fake registry server
+
+httpd oci-registry-server.py --dir=.
+port=$(cat httpd-port)
+scheme=http
+
+client="python3 $test_srcdir/oci-registry-client.py --url=${scheme}://127.0.0.1:${port}"
+
+# Add OCI bundles to it
+
+${FLATPAK} build-bundle --runtime --oci $FL_GPGARGS repos/test oci/platform-image org.test.Platform >&2
+$client add platform latest "$(pwd)/oci/platform-image"
+
+${FLATPAK} build-bundle --oci $FL_GPGARGS repos/test oci/app-image org.test.Hello >&2
+$client add hello latest "$(pwd)/oci/app-image"
+
+# Add an OCI remote
+
+${FLATPAK} remote-add ${U} oci-registry "oci+${scheme}://127.0.0.1:${port}" >&2
+
+# Check that the images we expect are listed
+
+images=$(${FLATPAK} remote-ls ${U} --columns=app oci-registry | sort | tr '\n' ' ' | sed 's/ $//')
+assert_streq "$images" "org.test.Hello org.test.Platform"
+
+${FLATPAK} ${U} install -y oci-registry org.test.Hello >&2
+
+# ensure the right extra-data got downloaded
+${FLATPAK} run --command=sh org.test.Hello -c "cat /app/extra/test" > out
+assert_file_has_content out "extra-data-test-content"
+
+${FLATPAK} ${U} uninstall -y org.test.Hello >&2
+
+ok "install extra data app with oci"
\ No newline at end of file
diff --git a/tests/test-matrix/meson.build b/tests/test-matrix/meson.build
index 3c20abed..466ab0f7 100644
--- a/tests/test-matrix/meson.build
+++ b/tests/test-matrix/meson.build
@@ -29,6 +29,8 @@ wrapped_tests += {'name' : 'test-summaries@user.wrap', 'script' : 'test-summarie
 wrapped_tests += {'name' : 'test-summaries@system.wrap', 'script' : 'test-summaries.sh'}
 wrapped_tests += {'name' : 'test-subset@user.wrap', 'script' : 'test-subset.sh'}
 wrapped_tests += {'name' : 'test-subset@system.wrap', 'script' : 'test-subset.sh'}
+wrapped_tests += {'name' : 'test-extra-data@user.wrap', 'script' : 'test-extra-data.sh'}
+wrapped_tests += {'name' : 'test-extra-data@system.wrap', 'script' : 'test-extra-data.sh'}
 wrapped_tests += {'name' : 'test-basic.sh', 'script' : 'test-basic.sh'}
 wrapped_tests += {'name' : 'test-completion.sh', 'script' : 'test-completion.sh'}
 wrapped_tests += {'name' : 'test-config.sh', 'script' : 'test-config.sh'}
diff --git a/tests/update-test-matrix b/tests/update-test-matrix
index 3a51d0ba..2e26a6f2 100755
--- a/tests/update-test-matrix
+++ b/tests/update-test-matrix
@@ -34,6 +34,7 @@ TEST_MATRIX_SOURCE=(
 	'tests/test-prune.sh' \
 	'tests/test-seccomp.sh' \
 	'tests/test-repair.sh' \
+	'tests/test-extra-data.sh{user+system}' \
 )
 
 "${tests_srcdir}/expand-test-matrix.sh" --meson "${TEST_MATRIX_SOURCE[*]}" > "${tests_srcdir}/test-matrix/meson.build"