Yes, Pega Academy contains information about Testing Applications. Please click on following link https://pdn.pega.com/testing-applications for some overview information and details on such topics as the Automated Unit Testing and the Test Management Framework.
That was not my question. I am not asking for documentation but for a real program that I could play with, like a VM (like Pega Academy exercise VMs) or an application that I could import into a Pega instance. Is there such a thing?
Thanks for the clarification. There is not a separate program for the automated unit testing as it is part of the standard Pega install. You will need to get access to a Pega instance and make sure your operator ID has the AutomatedTesting privilege through an access role, you can use the Automated Unit Testing landing page to work with recorded test cases and unit test suites, including playing them back, scheduling when to run them, and examining their results.