There were all kinds of notices...lol
Not including that it's has been stated here in the forums before the test even started that there would be an end and then that was updated yesterday to have the time and day it would end. Today in game an hour and half before it closed it warned us, then warned again at an hour and then at 30 minutes.
I, for once, would like a test that isn't running during a normal work week. Some of us have jobs! :-(
[EDIT] Yes, I know, there have been tests spanning a weekend. But most of them have been a Tues-Fri (or a variant). I'll just be over here on my harrumph cushion. *sulks*