Method test_no_subqueryload_opt

test/orm/test_query.py:5495–5506

(self)

        )

    def test_no_subqueryload_opt(self):
        self._eagerload_mappings()

        User = self.classes.User
        sess = fixture_session()
        q = sess.query(User).options(subqueryload(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_mapping(self):
        self._eagerload_mappings(addresses_lazy="subquery")