Fatal error: Uncaught Error: Class "advanced_testcase" not found in /srv/www/htdocs/moodle/lib/dml/tests/mysqli_native_moodle_database_test.php:33 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/dml/tests/mysqli_native_moodle_database_test.php on line 33