Many standard testing tools will work with Progress. But if you are testing a GUI application then the more up to date the Progress release the better (Progress' internal GUI controls are not very well supported).
The trick with all automated testing is to obtain, or create, a test suite for the application that you want to test. And even if you can find something for the application you need to take into account your implementation of that application and how you actually use it -- "no two qad users are alike" isn't just an expression... That is generally a major endeavor. I have heard that qad has done automated testing internally but, SFAIK, the test suite is not publicly available so you would have to develop your own. Unless you can find another qad user who has one and who doesn't mind sharing with you.