1444             self.assertEqual(x._proto, None)
1446             self.assertEqual(x._proto, proto)
1448             self.assertEqual(y._proto, None)
1453             self.assertEqual(x._proto, None)
1455             self.assertEqual(x._proto, proto)
1457             self.assertEqual(y._proto, None)
1462             self.assertEqual(x._proto, None)
1464             self.assertEqual(x._proto, proto)
1466             self.assertEqual(y._proto, proto)
1580     _proto = None  variable in REX_two
1582         self._proto = proto
1587     _proto = None  variable in REX_three
1589         self._proto = proto
1595     _proto = None  variable in REX_four
1597         self._proto = proto