nextcloud/apps/files_external/tests/README.md

How to run the files external unit tests

Components

The files_external relies - as the name already says - on external file system providers. To test easily against such a provider we use some scripts to setup a provider (and of course also cleanup that provider). Those scripts can be found in the tests/env folder of the files_external app.

Naming Conventions

The current implementation supports a script that starts with start- for the setup step which is executed before the PHPUnit run and an optional script starting with stop- (and have the same ending as the start script) to cleanup the provider. For example: start-webdav-ownCloud.sh and stop-webdav-ownCloud.sh. As a second requirement after this prefix there has to be the name of the backend test suite. In the above example the test suite tests/backends/webdav.php is used. The last part is a name that can be chosen freely.

Hands-on way of unit test execution

Run all files_external unit tests by invoking the following in the Nextcloud core root folder:

./autotest-external.sh

This script supports to get passed a database as first argument:

./autotest-external.sh sqlite

You can also pass the name of the external file system provider as a second argument that should be executed. This is the name of the script without the prefix start- (or stop-) and without the extension .sh from the above mentioned components in test/env. So if you want to start the WebDAV backend tests against an ownCloud instance you can run following:

./autotest-external.sh sqlite webdav-ownCloud

This runs the script start-webdav-ownCloud.sh from the tests/env folder, then runs the unit test suite from backends/webdav.php (because the middle part of the name of the script is webdav) and finally tries to call stop-webdav-ownCloud.sh for cleanup purposes.

If common-tests is supplied as second argument it will skip the backend specific part completely and just run the common files_external unit tests:

./autotest-external.sh sqlite common-tests

The more manual way of unit test execution

If you want to debug your external storage provider, you maybe don't want to fire it up, execute the unit tests and clean everything up for each debugging step. In this case you can simply start the external storage provider instance and run the unit test multiple times against the instance for debugging purposes. To do this you just need to follow these steps (from within apps/files_external/tests):

1. run the start step (env/start-BACKEND-NAME.sh) or start the environment by hand (i.e. setting up an instance manually in a virtual box)
2. run the unit tests with following command (you can repeat that step multiple times): phpunit --configuration ../../../tests/phpunit-autotest-external.xml backends/BACKEND.php
3. call the cleanup script (env/stop-BACKEND-NAME.sh) or cleanup by hand