Fatal error: Uncaught Error: Class "core\tests\courses_tasks_testcase" not found in /srv/www/htdocs/moodle/lib/tests/task/hide_ended_courses_task_test.php:31 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/tests/task/hide_ended_courses_task_test.php on line 31