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Automated robustness testing of off-the-shelf software components

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3 Author(s)
Kropp, N.P. ; Inst. for Complex Eng. Syst., Carnegie Mellon Univ., Pittsburgh, PA, USA ; Koopman, P.J. ; Siewiorek, D.P.

Mission-critical system designers may have to use a commercial off-the-shelf (COTS) approach to reduce costs and shorten development time, even though COTS software components may not specifically be designed for robust operation. Automated testing can assess component robustness without sacrificing the advantages of a COTS approach. This paper describes the Ballista methodology for scalable, portable, automated robustness testing of component interfaces. An object-oriented approach based on parameter data types rather than component functionality essentially eliminates the need for function-specific test scaffolding. A full-scale implementation that automatically tests the robustness of 233 operating system software components has been ported to ten POSIX systems. Between 42% and 63% of components tested had robustness problems, with a normalized failure rate ranging from 10% to 23% of tests conducted. Robustness testing could be used by developers to measure and improve robustness, or by consumers to compare the robustness of competing COTS component libraries.

Published in:

Fault-Tolerant Computing, 1998. Digest of Papers. Twenty-Eighth Annual International Symposium on

Date of Conference:

23-25 June 1998