Employing static information in the generation of test cases

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Abstract
A commonly used approach for detecting defects in a program is to generate a suite of test inputs which exercises the entire program under a given testing criterion. Current techniques to generate test cases automatically that satisfy a testing criterion choose test input data by considering the testing requirements in an arbitrary order. In this paper, a technique is presented that groups the requirements and orders the generation of the test cases to reduce the number of test cases generated. The grouping is based on the statically determined property of post‐dominance. Test cases for each group are generated taking into account requirements for other groups. The use of this technique to generate test cases can be expected to produce fewer test cases that have to be retained with the software. A smaller number of test cases will require less effort and resources to test the software. The technique is especially useful in the maintenance environment, whether retesting of a changed program is done exhaustively or incrementally. The technique not only attempts to minimize the number of test cases generated but also reduces the effort to generate the test cases using the concept of a program slice.

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