there is no test for guys for HPV. It is bullshit but the only way to tell if a guy has it, is when he passes it along to a girl, and then the girl comes up with an abnormal pap smear. It's total BS... Even in females it isn't commonly tested for in STD screening.
Go get the shot! Even if you have HPV (it's a bummer but 66% of people have it so you at least aren't alone)-- gardasil can protect against other strains of HPV...