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Regression testing is the process of testing a modified system using the old test suite. As the test suite size is large, system retesting consumes large amount of time and computing resources. This issue of retesting of software systems can be handled using a good test case prioritization technique. A prioritization technique schedules the test cases for execution so that the test cases with higher priority executed before lower priority. The objective of test case prioritization is to detect fault as early as possible so that the debuggers can begin their work earlier. In this paper we propose a new prioritization technique to prioritize the test cases to perform regression testing for Component Based Software System (CBSS). The components and the state changes for a component based software systems are being represented by UML state chart diagrams which are then converted into Component Interaction Graph (CIG) to describe the interrelation among components. Our prioritization algorithm takes this CIG as input along with the old test cases and generates a prioritized test suit taking into account total number of state changes and total number of database access, both direct and indirect, encountered due to each test case. Our algorithm is found to be very effective in maximizing the objective function and minimizing the cost of system retesting when applied to few JAVA projects.
Electronics Computer Technology (ICECT), 2011 3rd International Conference on (Volume:2 )
Date of Conference: 8-10 April 2011