Find a mom and pops store and not the big boys. The smaller loally owned places ususally don't test as it costs extra and whatnot.
Here's a big tip, don't ask if they test. If they don't mention it, then roll with it but be on guard for a while. Almost every job I've had was supposed to test acording to policy, but never tested me and I kept my mouth shut.
Most places will tell you at some point during the initial meetings if they do or not.