Fatal error: Uncaught Error: Class "advanced_testcase" not found in /srv/www/htdocs/moodle/lib/tests/output/progress_trace/html_progress_trace_test.php:28 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/tests/output/progress_trace/html_progress_trace_test.php on line 28