def test_none_method_queryset(self):
        """Test that none() method in the queryset returns [], not error"""
        request_count_0 = salesforce.backend.query.request_count
        self.assertEqual(tuple(Contact.objects.none()), ())
        self.assertEqual(tuple(Contact.objects.all().none().all()), ())
        self.assertTrue(repr(Contact.objects.none()) in '[]')
        self.assertEqual(salesforce.backend.query.request_count, request_count_0,
                "Do database requests should be done with .none() method")
dataset/ETHPy150Open django-salesforce/django-salesforce/salesforce/tests/test_unit.py/TestQueryCompiler.test_none_method_queryset/swapped operands of `in`