Method roundtrip

test/ext/test_associationproxy.py:293–299

(self, obj)

            assert isinstance(p1.children, abc_)

    def roundtrip(self, obj):
        if obj not in self.session:
            self.session.add(obj)
        self.session.flush()
        id_, type_ = obj.id, type(obj)
        self.session.expunge_all()
        return self.session.get(type_, id_)

    def _test_sequence_ops(self):
        Parent, Child = self.classes("Parent", "Child")