Fatal error: Uncaught Error: Class "MediaWiki\Tests\Json\JsonUnserializableSuperClass" not found in /var/www/html/orian-wiki/tests/phpunit/mocks/json/JsonUnserializableSubClass.php:12 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/tests/phpunit/mocks/json/JsonUnserializableSubClass.php on line 12