From what I understand, those tests are totally unreliable. I don't think I've ever heard of someone getting back the results they expect. Also, I've never seen any documentation on what kind of markers they look for. Dog breeds are somewhat artificial and arbitrary. Some are very, very old, and some are pretty new. I don't think it's imprinted "Hi, I Am A _______" anywhere on the genome.
So I guess what I'm saying is no, I wouldn't do it.
