Method test_many_to_one_only

test/orm/test_cycles.py:328–350

test similar to SelfReferentialTest.testmanytooneonly

(self)

        )

    def test_many_to_one_only(self):
        """test similar to SelfReferentialTest.testmanytooneonly"""

        Child1, Child2 = self.classes.Child1, self.classes.Child2

        session = fixture_session()

        c1 = Child1()
        c1.child1_data = "qwerty"
        session.add(c1)
        session.flush()
        session.expunge_all()

        c1 = session.query(Child1).filter_by(child1_data="qwerty").one()
        c2 = Child2()
        c2.child1 = c1
        c2.child2_data = "asdfgh"
        session.add(c2)

        # the flush will fail if the UOW does not set up a many-to-one DP
        # attached to a task corresponding to c1, since "child1_id" is not
        # nullable
        session.flush()


class InheritTestTwo(fixtures.MappedTest):