Comment 3 for bug 942789

It's true that the script shouldn't try and disconnect already inactive devices, but at the same time the whole concept of testing wireless before and after suspend depends on their being a pre-existing wireless connection. You *should* have been prompted to create one before this test ran (by virtue of the networking/wireless_connection running). Can you confirm if that was the case? If not we'll need to fix things so that networking/wireless_connection does run beforehand.

I'm not saying this isn't a bug, but at best it's a matter of just prettifying the error - the test will and should fail anyway.