Software testing in the agile development is too complex issue in the Information Technology world. Since agile methods don't focus much on testing activities and agile software development doesn't include testing practices required for the quality of project, the process of finding the suitable method for testing, mainly for large scale projects is challenging. In this paper, we propose a concept of integrated agile software testing in a large scale project. This research define the software testing process technologies and principles for the agile software testing and identifies the best practices for testing software products in agile development process.