def test_traverse_course_dependencies(self):
geometry = Course('geometry')
physics = Course('physics')
algebra = Course('algebra')
physics.add_prerequisite_courses(algebra)
physics.add_prerequisite_courses(geometry)
scheduler = Scheduler('mock_courses.json')
scheduler.traverse_course_dependencies(physics)
self.assertEqual(len(scheduler.ordered_course_list), 3)
self.assertEqual(scheduler.ordered_course_list[2].name, 'Physics')
