Method test_no_contains_eager_opt

test/orm/test_query.py:5549–5565

(self)

        )

    def test_no_contains_eager_opt(self):
        self._eagerload_mappings()

        User = self.classes.User
        sess = fixture_session()
        q = (
            sess.query(User)
            .join(User.addresses)
            .options(contains_eager(User.addresses))
            .yield_per(1)
        )
        assert_raises_message(
            sa_exc.InvalidRequestError,
            "Can't use yield_per with eager loaders that require "
            "uniquing or row buffering",
            q.all,
        )

    def test_no_subqueryload_opt(self):
        self._eagerload_mappings()