Fatal error: Uncaught Error: Class "MediaWiki\Tests\Api\ApiTestCase" not found in C:\xampp\htdocs\extensions\CheckUser\tests\phpunit\integration\Api\ApiQueryCheckUserTest.php:40 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\CheckUser\tests\phpunit\integration\Api\ApiQueryCheckUserTest.php on line 40