They were talking about it on City Hospital a few weeks ago. Most of the time, lads can get away with a urine test, but it's probably best to get the swab done too.
I've never had a test myself, but us ladies have to have regular ones when we get to a certain age anyway to detect signs of cervical cancer and the like.
We should be more open about things like this... it's a shame people have trouble talking about it. It's a serious issue, and the consequences of STI's are not nearly advertised enough.
I say, if you're in doubt have a test. It's a moment's discomfort that could save a lifetime of problems...