Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/extensions/AbuseFilter/tests/phpunit/integration/Hooks/CheckUserHandlerTest.php:15 Stack trace: #0 {main} thrown in /var/www/html/extensions/AbuseFilter/tests/phpunit/integration/Hooks/CheckUserHandlerTest.php on line 15