Nope. No wage, no tips. In my case it lasted two nights only, and was paid the third night (and making the big bucks on weekend nights within a couple of months), but I'd heard of it being as long as a week at other places.
The worst part was, you wouldn't even know how long the trial period was -- they'd just ask you, last minute, if you could come in again for another trial. If it's a place you wanted to work at eventually, you'd say yes.