zhang-jinnan 33a459c2c3 Replace assertEqual(None, *) with assertIsNone in tests
Replace assertEqual(None, *) with assertIsNone in tests to have
more clear messages in case of failure.

Change-Id: I0d38a82e78fbe94657ab9a71c08422007843d179
2014-02-16 17:31:28 +08:00
..
2013-05-17 12:54:12 -07:00