Method _check_weakref

Lib/test/test_copy.py:838–847

(self, _copy)

        self.assertEqual(copy.deepcopy(bar), bar)

    def _check_weakref(self, _copy):
        class C(object):
            pass
        obj = C()
        x = weakref.ref(obj)
        y = _copy(x)
        self.assertIs(y, x)
        del obj
        y = _copy(x)
        self.assertIs(y, x)

    def test_copy_weakref(self):
        self._check_weakref(copy.copy)