In this paper, the authors deal with the introducing of new unit code testing technique called KRS unit code test, and new test approach called KRS approach, the combination of KRS unit code test and KRS approach is called KRS technique of testing. The paper is introducing a new way of unit code testing by clubbing of unit code test and Integration test into one unit. In this testing the main aim is to reduce the errors occur in the code and while integration. While in the KRS test approach they try to increase the efficiency of the testing with the help of KRS unit code test. This new approach is built only by considering the KRS unit code test.