Manual:PHP unit testing

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We do unit testing of MediaWiki's PHP code base using the PHPUnit framework. View our test coverage.

Core MediaWiki PHP unit tests are in the tests/phpunit directory. The directory structure roughly matches that of the code being tested. For example: you can find the unit tests for file includes/libs/IP.php in tests/phpunit/unit/includes/libs/IPTest.php.

Extensions often have tests in a tests subdirectory.

Use the navigation table or the links below to browse through this manual, or begin your journey by installing PHPUnit.