test_serializers.py 文件源码

def test_update_generates_validation_error_when_required_many_to_one_instance_not_found(self):
        vehicle = Vehicle(
            name='Test vehicle', type=VehicleType.bus, engine=Engine(4, 1234, None,
                                                                     None), owner=session.query(Owner).get(1),
            other=VehicleOther(advertising_cost=4321), options=session.query(Option).filter(Option.id.in_([1, 2])).all()
        )

        class VehicleSerializer(ModelSerializer):

            class Meta:
                model = Vehicle
                session = session
                fields = ('owner', )
                extra_kwargs = {'owner': {'allow_null': False}}

        data = {'owner': {'id': 1234}}

        serializer = VehicleSerializer(instance=vehicle, data=data, partial=True)
        self.assertTrue(serializer.is_valid(), serializer.errors)

        with self.assertRaises(ValidationError):
            serializer.update(vehicle, serializer.validated_data)