'Verify that command raises CommandError when `org` and `course_key` both are given.'

def test_with_org_and_course_key(self):

    self._enroll_users(self.course, self.users, 'audit')
    CourseModeFactory(course_id=self.course.id, mode_slug='no-id-professional')
    with self.assertRaises(CommandError):
        call_command('bulk_change_enrollment', org=self.org, course=unicode(self.course.id), from_mode='audit', to_mode='no-id-professional', commit=True)
