tree 4af20b198406fcc5e2174b7dfe32f08be71a6ece
parent e9f3a611555cbfc2071ac76b61601cf14c04d6cd
author melissaml <ma.lei@99cloud.net> 1475483793 +0800
committer melissaml <ma.lei@99cloud.net> 1475483793 +0800

Replace assertTrue(isinstance()) with assertIsInstance()

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: I32afee50ebabab9595b05bbfdf83d49aa09858f1