def test_bytes(self):
        pl = self._create()
        data = plistlib.dumps(pl)
        pl2 = plistlib.loads(data)
        self.assertNotIsInstance(pl, plistlib._InternalDict)
        self.assertEqual(dict(pl), dict(pl2))
        data2 = plistlib.dumps(pl2)
        self.assertEqual(data, data2)