Fatal error: Uncaught Error: Class 'advanced_testcase' not found in /home/aefn/public_html/moodle/files/tests/local/archive_writer/zip_writer_test.php:38 Stack trace: #0 {main} thrown in /home/aefn/public_html/moodle/files/tests/local/archive_writer/zip_writer_test.php on line 38