Method test_bad_newobj_class

Lib/test/pickletester.py:1860–1870

(self)

                    f'when serializing {REX.__module__}.REX object'])

    def test_bad_newobj_class(self):
        obj = REX((copyreg.__newobj__, (NoNew(),)))
        for proto in protocols[2:]:
            with self.subTest(proto=proto):
                with self.assertRaises(pickle.PicklingError) as cm:
                    self.dumps(obj, proto)
                self.assertIn(str(cm.exception), {
                    'first argument to __newobj__() has no __new__',
                    f'first argument to __newobj__() must be a class, not {NoNew.__module__}.NoNew'})
                self.assertEqual(cm.exception.__notes__, [
                    f'when serializing {REX.__module__}.REX object'])

    def test_wrong_newobj_class(self):
        obj = REX((copyreg.__newobj__, (str,)))