'Verify that users who aren\'t authors of the course are unable to export it'

def test_non_course_author(self):

    (_, nonstaff_user) = self.create_non_staff_authed_user_client()
    key = str(self.course.location.course_key)
    result = export_olx.delay(nonstaff_user.id, key, u'en')
    self._assert_failed(result, u'Permission    denied')
