Fatal error: Uncaught Error: Interface "MediaWiki\DomainEvent\DomainEventSubscriber" not found in /var/www/html/w/tests/phpunit/mocks/NullDomainEventSubscriber.php:17 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/mocks/NullDomainEventSubscriber.php on line 17