Method test_no_autobegin

test/orm/test_session.py:258–318

(self, op, trigger)

    )
    @testing.combinations("commit", "close", "rollback", None, argnames="op")
    def test_no_autobegin(self, op, trigger):
        User, users = self.classes.User, self.tables.users
        Address, addresses = self.classes.Address, self.tables.addresses

        self.mapper_registry.map_imperatively(
            User, users, properties={"addresses": relationship(Address)}
        )
        self.mapper_registry.map_imperatively(Address, addresses)

        with Session(testing.db) as sess:
            sess.add(User(name="u1"))
            sess.commit()

        s = Session(testing.db, autobegin=False)

        orm_trigger = trigger == "lazyload" or trigger == "unitofwork"
        with expect_raises_message(
            exc.InvalidRequestError,
            r"Autobegin is disabled on this Session; please call "
            r"session.begin\(\) to start a new transaction",
        ):
            if op or orm_trigger:
                s.begin()

                is_true(s.in_transaction())

                if orm_trigger:
                    u1 = s.scalar(select(User).filter_by(name="u1"))
                else:
                    eq_(s.scalar(select(1)), 1)

                if op:
                    getattr(s, op)()
                elif orm_trigger:
                    s.rollback()

                is_false(s.in_transaction())

            if trigger == "select1":
                s.execute(select(1))
            elif trigger == "lazyload":
                if op == "close":
                    s.add(u1)
                else:
                    u1.addresses
            elif trigger == "unitofwork":
                s.add(u1)

        s.begin()
        if trigger == "select1":
            s.execute(select(1))
        elif trigger == "lazyload":
            if op == "close":
                s.add(u1)
            u1.addresses

        is_true(s.in_transaction())