Yes a little unclear, but a servo tester may fit the bill?
http://www.andymark.com/product-p/am-2503.htm
We have a few that we picked up at a hobby shop for less than $10 each, but they don't seem to run a jag or a victor to full speed, but perfectly fine for testing systems. The AM one started last year, and may be calibrated to the motor controllers, as opposed to the hobby servos? Or maybe you get what you pay for?