def METHOD_NAME(self):
    lti_initializer = LtiInitializerView()
    teacher_role = "urn:something/something-else/Instructor,urn:something/something-else/Student"
    self.assertEqual(lti_initializer.determine_role(teacher_role), "Teacher")
    student_role = "urn:something/something-else/not-Instructor,urn:something/something-else/Student"
    self.assertEqual(lti_initializer.determine_role(student_role), "Student")
    # roles of None will also return "Student"
    self.assertEqual(lti_initializer.determine_role(None), "Student")