Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/w/tests/phpunit/integration/includes/Rest/Handler/TransformHtmlToWikitextTitleHandlerTest.php:17 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/integration/includes/Rest/Handler/TransformHtmlToWikitextTitleHandlerTest.php on line 17