@mock.patch('django_testing.models.SampleManager.get_last')
    @mock.patch('django_testing.models.SampleManager.get_first')
    def test_result_of_one_query_in_args_of_another(self, get_first, get_last):
        result = models.Sample.objects.get_first_and_last()
        self.assertEqual((get_first.return_value, get_last.return_value), result)