Empirical evaluation of the textual differencing regression testing technique

Filippos I. Vokolos, Phyllis G. Frankl

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    Regression testing is a commonly used activity whose purpose is to determine whether the modifications made to a software system have introduced new faults. Textual differencing is a new, safe and fairly precise, selective regression testing technique that works by comparing source files from the old and the new version of the program. We have implemented the textual differencing technique in a tool called Pythia. Pythia has been developed primarily through the integration of standard, well known UNIX programs, and is capable of analyzing large software systems written in C. In this paper we present results from a case study involving a software system of approximately 11,000 lines of source code written for the European Space Agency. The results provide empirical evidence that textual differencing is very fast and capable of achieving substantial reductions in the size of the regression test suite.

    Original languageEnglish (US)
    Pages44-53
    Number of pages10
    StatePublished - 1998
    EventProceedings of the 1998 IEEE International Conference on Software Maintenance, ICSM - Bethesda, MD, USA
    Duration: Nov 16 1998Nov 20 1998

    Other

    OtherProceedings of the 1998 IEEE International Conference on Software Maintenance, ICSM
    CityBethesda, MD, USA
    Period11/16/9811/20/98

    ASJC Scopus subject areas

    • Software

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