Fatal error: Uncaught Error: Class "MediaWikiLangTestCase" not found in /var/www/html/orian-wiki/tests/phpunit/integration/includes/Rest/Handler/MediaFileHandlerTest.php:17 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/tests/phpunit/integration/includes/Rest/Handler/MediaFileHandlerTest.php on line 17