Pega testing is followed in agile model. Pega is fast growing tool which makes millions of users happy. It is a business process management (BPM) tool which was founded by Alen Trefler. Pega PRPC is an Application Development Product from Pega Systems. To Test Pega Applications one need to know the Testing Management Framework (TMF) from Pega as well as Required knowledge in Manual Testing and Regressive Testing. Using Pega Unit Testing Feature one can test the Flow Rules, Decision Rules, Integrations and Automated Regression Testing. With the help of pega testing we test the pega applications very wisely and deliver as a defect free.It uses concept called PRPC which is a pega rules and process commander. It uses Rules set to design the pega applications.