Comment 1 for bug 834772

I see the 2 implementations of this fix involve unittest2. I'm going ahead and merge propping this:

https://code.launchpad.net/~cbehrens/nova/assert-in-fixes/+merge/73208

which is a smaller change. I feel a switch to unittest2 should be a separate proposal, if we wish to do that.

I'll let people fight it out for what they want. No offense taken if my merge prop is not chosen. :)