Yesterday, I came across a great website for visualizing your tests - because they actually have a video of each test next to the written movements!
Here is the link, where the list each test.
... and here is a short clip of my latest dressage test on youtube. I put it up recently to show what they are looking for in the release of rein in the Third 2 canter circle. (it is mostly so I can experiment with putting video up on my blog!)