def test_structs(self): v = Security.AuthorizationExternalForm() self.assertEqual(v.bytes, None) v.bytes = b"\x00" * 32 w = objc.repythonify(v, Security.AuthorizationExternalForm.__typestr__) self.assertIsInstance(w, Security.AuthorizationExternalForm) self.assertEqual(w.bytes, (0,) * 32)