'Verify that we get a `HttpResponseBadRequest` (bad request) when the
page we request isn\'t a positive integer.'

def test_non_positive_page(self):

    users = [UserFactory() for _ in range(5)]
    cohort = CohortFactory(course_id=self.course.id, users=users)
    self.request_users_in_cohort(cohort, self.course, 'invalid', should_return_bad_request=True)
    self.request_users_in_cohort(cohort, self.course, (-1), should_return_bad_request=True)
