Method test_no_orphan

test/orm/test_lazy_relations.py:212–240

test that a lazily loaded child object is not marked as an orphan

(self)

        ] == sess.query(User).all()

    def test_no_orphan(self):
        """test that a lazily loaded child object is not marked as an orphan"""

        users, Address, addresses, User = (
            self.tables.users,
            self.classes.Address,
            self.tables.addresses,
            self.classes.User,
        )

        self.mapper_registry.map_imperatively(
            User,
            users,
            properties={
                "addresses": relationship(
                    Address, cascade="all,delete-orphan", lazy="select"
                )
            },
        )
        self.mapper_registry.map_imperatively(Address, addresses)

        sess = fixture_session()
        user = sess.get(User, 7)
        assert getattr(User, "addresses").hasparent(
            attributes.instance_state(user.addresses[0]), optimistic=True
        )
        assert not sa.orm.class_mapper(Address)._is_orphan(
            attributes.instance_state(user.addresses[0])
        )

    def test_limit(self):
        """test limit operations combined with lazy-load relationships."""