Code review comment for lp:~attente/unity/gnome-key-grabber

I don't get failures as well.

However, speaking of the code itself, I'm ok with it now.

As for testing this AP code sees a little too complex: I mean, it's better to keep single tests small adding more functions. Also, since we're in the AP land, it would be nice if you might test the real world usage (i.e. open a window, better a mocked one, and test that it's menus are shown on Alt or opened on accelerators).
In general I prefer unit tests (especially for non-visual things like this), and in this case you might have done them quite easily.