( ! ) Fatal error: Uncaught Error: Class "advanced_testcase" not found in C:\wamp64\www\question\engine\tests\question_reference_manager_test.php on line 33
( ! ) Error: Class "advanced_testcase" not found in C:\wamp64\www\question\engine\tests\question_reference_manager_test.php on line 33
Call Stack
#	Time	Memory	Function	Location
1	0.0004	358808	{main}( )	...\question_reference_manager_test.php:0