Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/extensions/MobileFrontend/tests/phpunit/specials/SpecialMobileWatchlistTest.php:10 Stack trace: #0 {main} thrown in /var/www/html/extensions/MobileFrontend/tests/phpunit/specials/SpecialMobileWatchlistTest.php on line 10