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Experiments with test case prioritization using relevant slices
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DOI：10.1016/j.jss.2007.05.006.png)
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Software testing and retesting occurs continuously during the software development lifecycle to detect errors as early as possible and to gain confidence that changes to software do not introduce defects. Once developed, test suites are reused and updated frequently, and their sizes grow as software evolves. Due to time and resource constraints, an important goal during regression testing of software is to prioritize the execution of test cases in a suite so as to improve the chances of increasing the rate of fault detection. Prior techniques for test case prioritization are based on the total number of coverage requirements exercised by the test cases. In this paper, we present a new approach to prioritize test cases that takes into account the coverage requirements present in the relevant slices of the outputs of test cases. We have implemented three different heuristics based on our relevant slicing based approach to prioritize test cases and conducted experiments to compare the effectiveness of our techniques with those of the traditional techniques that only account for the total requirement coverage. Our detailed experimental study and results provide interesting insights into the effectiveness of using relevant slices for test case prioritization in terms of ability to achieve high rate of fault detection. Published by Elsevier Inc.
Keyword:
test case prioritization
relevant slices based model
test suite management
experimental studies
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