Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/extensions/MobileFrontend/tests/phpunit/integration/models/MobileCollectionTest.php:11 Stack trace: #0 {main} thrown in /var/www/html/extensions/MobileFrontend/tests/phpunit/integration/models/MobileCollectionTest.php on line 11