def test_both_complex_complex_schema_all_items_valid(self):
        serialized = self.complex_schema.serialize()
        try:
            jsonschema.validate(
                {
                    "complex_complex_item": {
                        "hungry": True,
                        "complex_item": {"thirsty": True},
                    }
                },
                serialized,
            )
        except jsonschema.exceptions.ValidationError as exc:
            self.fail("ValidationError raised: {}".format(exc))