Fatal error: Uncaught Error: Class "MediaWiki\Tests\Structure\AbstractSchemaTestBase" not found in C:\xampp\htdocs\extensions\AbuseFilter\tests\phpunit\integration\AbuseFilterSchemaTest.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\AbuseFilter\tests\phpunit\integration\AbuseFilterSchemaTest.php on line 12