Fatal error: Uncaught Error: Class "MediaWiki\Extension\DiscussionTools\LanguageData" not found in /var/www/html/orian-wiki/extensions/DiscussionTools/tests/phpunit/MockLanguageData.php:7 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/extensions/DiscussionTools/tests/phpunit/MockLanguageData.php on line 7