Dynamic Regression Test Selection Based on a File Cache An Industrial Evaluation

  • Authors:
  • Greger Wikstrand;Robert Feldt;Jeevan Kumar Gorantla;Wang Zhe;Conor White

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • ICST '09 Proceedings of the 2009 International Conference on Software Testing Verification and Validation
  • Year:
  • 2009

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Abstract

This paper presents a simple method that computes test case coverage information from information on what files were updated to fix a fault found by the test case. It uses a cache to monitor fault-prone files and recommends test cases to rerun to cover updated files. We present an evaluation of the method during two months of development of a large, industrial, embedded, real-time software system. Our results show that the method is effective, reaching weekly cache hit rates in the range 50-80%.