Use testtools as test base class.

On the path to testr migration, we need to replace the unittest base classes
with testtools.
Replace tearDown with addCleanup, addCleanup is more resilient than tearDown.
The fixtures library has excellent support for managing and cleaning
tempfiles. Use it.
Replace skip_ with testtools.skipTest

Part of blueprint grizzly-testtools.

Change-Id: I45e11bbb1ff9b31f3278d3b016737dcb7850cd98

1 files changed, 1 insertions, 1 deletions

diff --git a/HACKING.rst b/HACKING.rst
index 39f94df..7dda11a 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -65,9 +65,9 @@ Example::
   import random
   import StringIO
   import time
-  import unittest
 
   import eventlet
+  import testtools
   import webob.exc
 
   import nova.api.ec2