Fatal error: Uncaught Error: Class "MediaWiki\Tests\Mocks\Json\JsonDeserializableSuperClass" not found in /var/www/html/w/tests/phpunit/mocks/Json/JsonDeserializableSubClass.php:11 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/mocks/Json/JsonDeserializableSubClass.php on line 11