Fatal error: Uncaught Error: Class "ApiTestCase" not found in /var/www/html/extensions/DiscussionTools/tests/phpunit/integration/ApiParseDiscussionToolsTest.php:12 Stack trace: #0 {main} thrown in /var/www/html/extensions/DiscussionTools/tests/phpunit/integration/ApiParseDiscussionToolsTest.php on line 12