Bypassing the Combinatorial Explosion: Using Similarity to Generate and Prioritize T-Wise Test Suites for Large Software Product Lines

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Executive Summary

Software Product Lines (SPLs) are families of products whose commonalities and variability can be captured by Feature Models (FMs). T-wise testing aims at finding errors triggered by all interactions amongst t features, thus reducing drastically the number of products to test. T-wise testing approaches for SPLs are limited to small values of t - which miss faulty interactions - or limited by the size of the FM. Furthermore, they neither prioritize the products to test nor provide means to finely control the generation process. This paper offers a search-based approach capable of generating products for large SPLs, forming a scalable and flexible alternative to current techniques and prioritization algorithms for any set of products.

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