Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /home/reminder_calling/srg.kuality.ca/extensions/Echo/tests/phpunit/NotificationsTest.php:18 Stack trace: #0 {main} thrown in /home/reminder_calling/srg.kuality.ca/extensions/Echo/tests/phpunit/NotificationsTest.php on line 18