Method test_null_argument

tests/db_functions/comparison/test_nullif.py:35–39

(self)

        )

    def test_null_argument(self):
        authors = Author.objects.annotate(
            nullif=NullIf("name", Value(None))
        ).values_list("nullif")
        self.assertCountEqual(authors, [("John Smith",), ("Rhonda",)])

    def test_too_few_args(self):
        msg = "'NullIf' takes exactly 2 arguments (1 given)"