Fatal error: Uncaught Error: Class "MediaWikiUnitTestCase" not found in /var/www/html/orian-wiki/extensions/Gadgets/tests/phpunit/unit/GadgetTest.php:9 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/extensions/Gadgets/tests/phpunit/unit/GadgetTest.php on line 9