The growth of the software development industry approaches the new development methodologies to deliver the error free software to its end-user fulfilling the business values to product. The growth of tools and technology has brought the automation in the development and software testing process, it has also increased the demand of the fast testing and delivery of the software to end customers. Traditional software development methodologies to trending agile software development trend have brought new philosophy, dimensions, and processes having invested new tools to make process easy. The Agile development (Scrum, XP, FDD, BDD, ATDD, ASD, DSDM, Kanban, Crystal and Lean) process also faces the software testing model crises because of the fast development of life cycles, fast delivery to end users without having appropriate test metrics which make the software testing process slow as well as increase the risk. The analysis of the testing metrics in the software testing process and setting the right lean test metrics help to improve the software quality effectively in agile process.