Abstract
This paper presents an integrated metamorphic testing environment MTest and reports an experimental analysis of the effectiveness of metamorphic testing, which is carried out using MTest with a real program of sparse matrix multiplication. Quantitative evaluation and comparison of special case testing, metamorphic testing with special and random test cases are illustrated with two measurements: mutation score and fault detection ratio. The case study shows that metamorphic testing and special case testing are complementary to each other, and with
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