Ugh. I had to take tests like that when I was interviewing right out of college. The whole experience rubbed me the wrong way. I ended up telling them I smoked (they were 100% smoke free and you could be fired for testing positive for nicotine) just to get them to leave me alone as smoking immediately knocked you out of the running.

Not surprisingly, my company has hired several people from them and absolutely no one has a good thing to say about working there.