Add a few unittest2 assertions to TestCase
|Reported by:||Julian Berman||Owned by:||Tom Prince|
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This begins to add some of unittest2's assertions to TestCase. Some of these are needed (assertIs and assertIsNot) because they will be replacing assertIdentical and assertNotIdentical.
Others are just plain dumb (assertIsNone) though unittest2 has them, and eventually it would be nice to have full unittest2 compatibility (once again, unittest2 is the name for pyunit in 2.7+). So these are here for now to help that move forward. Eventually they will be removed and only defined on Python 2.6.