Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/extensions/Gadgets/tests/phpunit/integration/MediaWikiGadgetsJsonRepoTest.php:10 Stack trace: #0 {main} thrown in /var/www/html/extensions/Gadgets/tests/phpunit/integration/MediaWikiGadgetsJsonRepoTest.php on line 10