tree 7c53881461bc01582711438b67fd0bdb1e164a30
parent 3ca71ed94b242dc28e51816443b2e6c07e75595f
author gecong1973 <ge.cong@zte.com.cn> 1472543774 +0800
committer gecong <ge.cong@zte.com.cn> 1472603214 +0000

Change assertTrue(isinstance()) by optimal assert

Some of tests use different method of assertTrue(isinstance(A, B))
The correct way is to use assertIsInstance(A, B) provided by testtools

Change-Id: Ie21fb409edf558409aa4bf5dfe59893c5b544aa8