Code review comment for lp:~unity-2d-team/unity-2d/filter-option-compact-shell

The lenses are something we don't have control over. However in the absense of test lenses, we've got to assume *some* lenses are there. I'm happy assuming Applications, Documents & Music are there, as they're the defaults.

And to do a reliable test, we've got to know a lens with filter-check-option, and one with filter-check-option-compact. Applications & Music (resp.) are suitable. Cycling through them doesn't test something we know, only that we found a lens which claims to have 2 or 3 columns.

So I think these tests are sufficient.

Long term goal is to have a test lens, so we don't need to worry about lens changes.