Fatal error: Uncaught Error: Class "MediaWikiUnitTestCase" not found in /var/www/html/w/tests/phpunit/unit/includes/HistoryBlob/DiffHistoryBlobTest.php:6 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/unit/includes/HistoryBlob/DiffHistoryBlobTest.php on line 6