Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/w/tests/phpunit/integration/includes/Watchlist/WatchlistManagerTest.php:14 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/integration/includes/Watchlist/WatchlistManagerTest.php on line 14