gplx/mediawiki/tests/phpunit/README.md

MediaWiki PHPUnit tests

WARNING: Integration tests may be destructive and alter or remove parts of your local database. We try to use temporary tables where possible, but you must never run tests on a production server or on a wiki where you don't want to lose data.

Running tests

If you haven't already, run composer update (specifically without --no-dev) in the MediaWiki core directory. This will install PHPUnit.

To read about how to run specific tests, refer to:

https://www.mediawiki.org/wiki/Manual:PHP_unit_testing/Running_the_tests

Writing tests

A guide to writing PHPUnit tests for MediaWiki can be found at:

https://www.mediawiki.org/wiki/Manual:PHP_unit_testing