Method test_one

test/orm/test_cycles.py:1457–1493

Test that post_update remembers to be involved in update operations as well, since it replaces the normal dependency processing completely [ticket:413]

(self)

            pass

    def test_one(self):
        """
        Test that post_update remembers to be involved in update operations as
        well, since it replaces the normal dependency processing completely
        [ticket:413]

        """

        A, a_table = self.classes.A, self.tables.a_table

        self.mapper_registry.map_imperatively(
            A,
            a_table,
            properties={
                "foo": relationship(
                    A, remote_side=[a_table.c.id], post_update=True
                )
            },
        )

        session = fixture_session()

        f1 = A(fui="f1")
        session.add(f1)
        session.flush()

        f2 = A(fui="f2", foo=f1)

        # at this point f1 is already inserted.  but we need post_update
        # to fire off anyway
        session.add(f2)
        session.flush()
        session.expunge_all()

        f1 = session.get(A, f1.id)
        f2 = session.get(A, f2.id)
        assert f2.foo is f1


class SelfReferentialPostUpdateTest3(fixtures.MappedTest):