Rest Week?

I went out for a six mile run today per my training plan and was surprised that my legs felt as good as they did. Despite the relatively light training in the last couple of weeks, one thing that I've noticed is that on runs, my legs have felt a little heavy (I've been told to get used to this- heavy legs IS Ironman). I was also surprised to note that I felt so good that I was having trouble keeping the pace at "easy" (it did also help that this is the first time that I could breathe in two weeks).
Then I remembered. It is a "rest" week. The reason that I put rest in quotes is that I have a hard time calling any week that involves workouts called "tests" that can make grown men cry a "rest week". The whole idea of the rest week is ironic (in that Alanis Morisette calling things that aren't really ironic ironic kind of way). You always reduce volume periodically in training to gain fitness and assure that one is not over training. Runners leave it at that (Rest= Rest). We, however, are reducing volume and checking fitness at the same time. So, our rest week now contains three different fitness tests. The tests are only 20 minutes (reduced volume) but are extremely high intensity. You basically go as hard as you can for 20 minutes (the longest 20 minutes of your life will either be "going as hard as you can" on a bike, or in my 7th period journalism class).
 At the end of the bike test Tuesday, I was covered in sweat, felt like I was going to throw up, was literally drooling on myself, and may have cried a little bit. And then my coach came over and said that she thought I could go harder. I guess there were several bodily functions at the end of the test that still worked, and that was a problem.
Tomorrow is the swim test. I guess no one has ever drowned during it, so that is a good thing. Losing bodily function in the pool seems a bit more dangerous than on a bike hooked into a computrainer, but whatever. It's the run test that really worries me. I know I'm not a good biker, and I have no idea what to expect from the swim, but I know where I am with running. I know that I'm not fit enough to run where I should be even though my legs felt fresh today. I also know that I will probably run too hard too fast and blow up on the path like I have in every 5k I've ever run.
Hopefully, as a more experienced runner, I somehow manage to drool less than I did on the bike. I guess that's where we are as far as measuring success right now.
It think tha,t for now, I'm going to have to be okay with that.