1. Yes, in Pega 7.2.2 there is the PegaUnit testing features which you can use to configure automated test cases for a number of different rule types.  These tests can be grouped together into Test Suites which can be executed from a Continuous Integration tool such as Jenkins.

There are quite a  few articles about PegaUnit testing on the Pega Community:

https://community.pega.com/knowledgebase/articles/pegaunit-testing

https://pdn.pega.com/running-all-data-page-unit-test-cases-execute-tests-service/running-all-data-page-unit-test-cases

Pega AUT provides a limited coverage to automate test cases. There are various limitations of AUT.

If you want to perform functional automation then you can think of Selenium / UFT. 

Kind Regards,

Fayaz Chaudhari

​https://www.linkedin.com/in/fayazchaudhari/