Fatal error: Uncaught Error: Class "MediaWikiUnitTestCase" not found in /var/www/html/w/extensions/VisualEditor/tests/phpunit/unit/EditCheckConfigMergerTest.php:11 Stack trace: #0 {main} thrown in /var/www/html/w/extensions/VisualEditor/tests/phpunit/unit/EditCheckConfigMergerTest.php on line 11