The Community for Technology Leaders
2010 Third International Conference on Software Testing, Verification and Validation (2010)
Paris, France
Apr. 6, 2010 to Apr. 9, 2010
ISBN: 978-0-7695-3990-4
pp: 75-78
Background: The fix-cache approach to regression test selection was proposed to identify the most fault-prone files and corresponding test cases through analysis of fixed defect reports. Aim: The study aims at evaluating the efficiency of this approach, compared to the previous regression test selection strategy in a major corporation, developing embedded systems. Method: We launched a post-hoc case study applying the fix-cache selection method during six iterations of development of a multi-million LOC product. The test case execution was monitored through the test management and defect reporting systems of the company. Results: From the observations, we conclude that the fix-cache method is more efficient in four iterations. The difference is statistically significant at alpha = 0.05. Conclusions: The new method is significantly more efficient in our case study. The study will be replicated in an environment with better control of the test execution.

G. Wikstrand, P. Runeson and E. Engström, "An Empirical Evaluation of Regression Testing Based on Fix-Cache Recommendations," 2010 Third International Conference on Software Testing, Verification and Validation(ICST), Paris, France, 2010, pp. 75-78.
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