Fatal error: Uncaught Error: Class "MediaWiki\Tests\HookContainer\HookRunnerTestBase" not found in C:\xampp\htdocs\extensions\DiscussionTools\tests\phpunit\unit\HookRunnerTest.php:11 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\DiscussionTools\tests\phpunit\unit\HookRunnerTest.php on line 11