Manual:PHP unit testing/en

Introduction
We do unit and integration testing of MediaWiki's PHP code base using the PHPUnit framework. View MediaWiki core's test coverage.

MediaWiki core's PHP unit and integration tests are in the  directory. When adding new tests, unit tests should be placed in  and integration tests should be placed in  The directory structure roughly matches that of the code being tested. For example: you can find the unit tests for file  in.

Extensions have PHPUnit tests in a  subdirectory, ideally also using subdirectories to separate unit and integration tests.

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