Demonstrates pytest_factoryboy issue with SubFactory fixture names

test_subfactory_different_name.py

import factory
from pytest_factoryboy import register


class AModel:
    """Simple model that refers to another model"""

    def __init__(self, b_model):
        self.b_model = b_model


class BModel:
    """The referred to model by A that has a name."""

    def __init__(self, name):
        self.name = name


class BModelFactory(factory.Factory):
    """Factory that creates B models."""

    class Meta:
        model = BModel

    name = "John""


class AModelFactory(factory.Factory):
    """Factory that creates A models using a SubFactory to set the b_model attribute."""

    class Meta:
        model = AModel

    b_model = factory.SubFactory(BModelBobFactory)


register(BModelFactory, "b_model_with_some_other_name")
register(AModelFactory)


def test_wrong_fixture_name(a_model):
    """This fails at the setup step due to not finding a fixture named "b_model__name".

    The issue appears to be that while generating the fixtures for the AModelFactory's
    SubFactory(BModelFactory) the `register` code doesn't take into account that the
    BModelFactory was registered.

    It actually looks like there isn't a clear way to properly introspect whether a
    given factory class to be used for a SubFactory has already been registered with
    an overridden model_name. I think some extra metadata will be required in order for
    subsequent calls to `register` to be able to determine that?
    """
    pass