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SIGSOFT
2007
ACM

Differential testing: a new approach to change detection

13 years 21 days ago
Differential testing: a new approach to change detection
Regression testing, as it's commonly practiced, is unsound due to inconsistent test repair and test addition. This paper presents a new technique, differential testing, that alleviates the test repair problem and detects more changes than regression testing alone. Differential testing works by creating test suites for both the original system and the modified system and contrasting both versions of the system with these two suites. Differential testing is made possible by recent advances in automated unit test generation. Furthermore, it makes automated erators more useful because it abstracts away the interpretation and management of large volumes of tests by focusing on the changes between test suites. In our preliminary empirical study of 3 subjects, differential testing discovered 21%, 34%, and 21% more behavior changes than regression testing alone. Categories and Subject Descriptors D.2.5 [Software Engineering]: Testing and Debugging ? Testing Tools, Debugging Aids General ...
Robert B. Evans, Alberto Savoia
Added 20 Nov 2009
Updated 20 Nov 2009
Type Conference
Year 2007
Where SIGSOFT
Authors Robert B. Evans, Alberto Savoia
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