tree c1b8001d46af49d57ec8f6ad8b24fb495d1c57d7
parent 1a347326fab2cd5248ef4e2998f82f89112a7027
author llg8212 <lilinguo@huawei.com> 1392437661 +0800
committer llg8212 <lilinguo@huawei.com> 1392437735 +0800

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: I2732b3e747bd9394f9add7f1b077b366864fddd7
Closes-Bug:#1280522