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Publication Citation: Isolating Failure-Inducing Combinations in Combinatorial Testing using Test Augmentation and Classification

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Author(s): Kiran Shakya; Tao Xie; Nuo Li; Yu Lei; Raghu N. Kacker; David R. Kuhn;
Title: Isolating Failure-Inducing Combinations in Combinatorial Testing using Test Augmentation and Classification
Published: April 21, 2012
Abstract: Combinatorial Testing (CT) is a systematic way of sampling input parameters of the software under test (SUT). A t-way combinatorial test set can exercise all behaviors of the SUT caused by interactions between t input parameters or less. Although combinatorial testing can provide fault detection capability, it is often desirable to isolate the input combinations that cause failures. Isolating these failure-inducing combinations aids developers in understanding the causes of failures. Previous work directly uses classification tree analysis on the results of combinatorial testing to model the failure inducing combinations. But in many scenarios, the effectiveness of classification depends upon whether the analyzed test set is sufficient for classification. In addition, generating combinatorial tests for more-than-6-way combination is generally expensive. To address these issues, we propose an approach that uses existing combinatorial testing results to generate additional tests that enhance the effectiveness of classification. In addition, our approach also includes a technique to reduce the complexity of the resulting classification tree so that developers can understand the nature of failure-inducing combinations. We present the preliminary results of our approach applied on the TCAS benchmark.
Conference: First International Workshop on Combinatorial Testing
Proceedings: Proceedings of the IEEE Fifth International Conference on Software, Testing, Verification and Validation (ICST 2012)
Pages: pp. 620 - 623
Location: Montreal, -1
Dates: April 17-21, 2012
Keywords: Classification Tree, Combinatorial Testing, Fault Localization
Research Areas: Math, Software
DOI: http://dx.doi.org/10.1109/ICST.2012.149  (Note: May link to a non-U.S. Government webpage)
PDF version: PDF Document Click here to retrieve PDF version of paper (115KB)