tree 930ff8231a133bbe31d4cd79763292a83b82e983
parent e82c2762e4aaca5fab6260aaa089dd849bed0bff
author Shuquan Huang <huang.shuquan@99cloud.net> 1451549684 +0800
committer Shuquan Huang <huang.shuquan@99cloud.net> 1451549684 +0800

Change assertTrue(isinstance()) by optimal assert

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

Change-Id: I9053c9deaa71ee12e10db73b19250b3a32f3d93c
Closes-bug: #1268480