testing-cabal/testtools — pull request #45 by zyluo (2013-09-09 07:35:05+00:00)
Title: Implements assertNotIsInstance

The method 'assertNotIsInstance' was introduced in python 2.7 but was not
able to call through testtools in python 2.6.
http://docs.python.org/2/library/unittest.html#unittest.TestCase.assertNotIs

This patch implements the 'assertNotIsInstance' testcase.