关于蜕变测试和特殊用例测试的实例研究

提出了基于蜕变测试方法的集成测试环境MTest,进而为检验蜕变测试方法的能力和效率,以稀疏矩阵乘法程序为例设计了一组实验.该实验基于变异分析技术,分别以mutation score和错误发现率为度量指标,定量地分析和对比了特殊用例测试,以特殊测试用例和随机测试用例为源测试用例的蜕变测试这3种方法的测试能力和效率.该实验可在MTest测试环境下自动完成.实验结果表明,蜕变测试与特殊用例测试之间是互补的,而且就蜕变测试的源测试用例而言,随机测试用例在测试能力和效率上优于特殊测试用例.

Metamorphic Testing and Special Case Testing: A Case Study

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 respect to source test case for metamorphic testing, random test cases are preferred to special test cases.