Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/w/extensions/Echo/tests/phpunit/integration/Formatters/EchoUserBlockStatusPresentationModelTest.php:15 Stack trace: #0 {main} thrown in /var/www/html/w/extensions/Echo/tests/phpunit/integration/Formatters/EchoUserBlockStatusPresentationModelTest.php on line 15