Fixes keystone auth test failures in python 2.6.

Fixes bug 909408.

(cherry picked from commit 00ac2c7)

Change-Id: I18f5bf43f390c8a69f49e5f038acb9dcd80ca502

Authors

@@ -19,6 +19,7 @@ Josh Kearney <josh@jk0.org>
 Justin Shepherd <jshepher@rackspace.com>
 Ken Pepple <ken.pepple@gmail.com>
 Kevin L. Mitchell <kevin.mitchell@rackspace.com>
+Major Hayden <major@mhtx.net>
 Mark McLoughlin <markmc@redhat.com>
 Matt Dietz <matt.dietz@rackspace.com>
 Mike Lundy <mike@pistoncloud.com>

glance/tests/unit/test_auth.py

@@ -166,7 +166,7 @@ def fake_do_request(cls, url, method, headers=None, body=None):
 
         for creds in good_creds:
             plugin = auth.KeystoneStrategy(creds)
-            self.assertIsNone(plugin.authenticate())
+            self.assertTrue(plugin.authenticate() is None)
 
     def test_v2_auth(self):
         """Test v2 auth code paths"""
@@ -267,4 +267,4 @@ def fake_do_request(cls, url, method, headers=None, body=None):
 
         for creds in good_creds:
             plugin = auth.KeystoneStrategy(creds)
-            self.assertIsNone(plugin.authenticate())
+            self.assertTrue(plugin.authenticate() is None)