Fatal error: Uncaught Error: Class 'MediaWikiTestCase' not found in /var/www/html/wiki_2023/extensions/PageImages/tests/phpunit/Hooks/LinksUpdateHookHandlerTest.php:25 Stack trace: #0 {main} thrown in /var/www/html/wiki_2023/extensions/PageImages/tests/phpunit/Hooks/LinksUpdateHookHandlerTest.php on line 25