On Partitioning the Domain for Test Case Reusability (Short Paper)

Abstract

During the life time of software or even within the development stage, it is inevitable that the software needs to be modified. Test cases used before for the previous version could be reused in order to reduce the cost of regression testing. This paper proposes a regression testing methodology, called Partitioning of Domain Testing (PDT), to analyze the input domains of the previous version and the modified version so that test cases can be maximally reused. As a result, software test engineers can spend less effort in generating test cases to test the modified software. This methodology is different from traditional domain-based testing strategies in the sense that the partitioning is achieved by two supplementary perspectives, namely the specifications of the program and its testing criterion. First, the input domain is partitioned according to the specification and testing criterion of the program under test. Then, further refining methods are introduced to obtain 100% reusable test cases. We also illustrate the idea of PDT using a case study with 3 different testing criteria.

Experiments on Test Case Reuse of Test Coverage Criteria

“…Regression testing also has been extensively studied for new software developing methodology, for example, [3] has presented a framework and introduced many techniques to classing test cases according to the modifying of Control Flow Graph between original program and modified program, However, selecting reusing test case is expensive for computing modifying of CFG. [4] Presents domain based testing method to evaluate test cases reusability in aggression testing with input domain, which relies on software object modeling on three levels: Scripting, individual Manipulation of Object and Objective Attribute Value Section. Though it facilitates reusing of test case in regression testing, the selection of reusable test cases is a complicated and expensive job.…”