Class DontCompareMeToString

test/orm/test_mapper.py:516–517

        m = self.mapper(Foo, foo_t)

        class DontCompareMeToString(int):
            pass

        foos = [Foo(id_="f%d" % i) for i in range(5)]
        states = [attributes.instance_state(f) for f in foos]