Method _fixture

test/orm/test_attributes.py:1487–1528

(self)

class PendingBackrefTest(fixtures.ORMTest):
    def _fixture(self):
        class Post:
            def __init__(self, name):
                self.name = name

            __hash__ = None

            def __eq__(self, other):
                return other is not None and other.name == self.name

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

            __hash__ = None

            def __eq__(self, other):
                return other is not None and other.name == self.name

        lazy_posts = Mock()

        instrumentation.register_class(Post)
        instrumentation.register_class(Blog)
        _register_attribute(
            Post,
            "blog",
            uselist=False,
            backref="posts",
            trackparent=True,
            useobject=True,
        )
        _register_attribute(
            Blog,
            "posts",
            uselist=True,
            backref="blog",
            callable_=lazy_posts,
            trackparent=True,
            useobject=True,
        )

        return Post, Blog, lazy_posts

    def test_lazy_add(self):
        Post, Blog, lazy_posts = self._fixture()