Fatal error: Uncaught Error: Class "MediaWikiTestCase" not found in /var/www/html/orian-wiki/skins/Vector/tests/phpunit/integration/SkinVersionLookupTest.php:28 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/skins/Vector/tests/phpunit/integration/SkinVersionLookupTest.php on line 28