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基于浮点计算程序的复合蜕变测试方法研究
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作者 邱舒婷 吴诗帆 刘春光 《舰船电子工程》 2024年第7期161-164,174,共5页
IEEE754标准下的浮点数在计算时总是伴随着舍入,增加了浮点计算结果不精确甚至出现异常的可能性,并且在实际应用中,无论采用什么样的计算方法、设置多高的精度,都无法完全避免浮点计算异常对计算结果的干扰。论文提出用蜕变测试技术来... IEEE754标准下的浮点数在计算时总是伴随着舍入,增加了浮点计算结果不精确甚至出现异常的可能性,并且在实际应用中,无论采用什么样的计算方法、设置多高的精度,都无法完全避免浮点计算异常对计算结果的干扰。论文提出用蜕变测试技术来测试遥测数据处理程序中遇到的这种不可测的FPC程序,针对这类FPC程序的特征构造复合蜕变关系来缓解Oracle问题,以此提高浮点计算的准确性,进一步确保软件的可靠性。 展开更多
关键词 浮点计算 FPC程序 复合蜕变关系 蜕变测试
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Case studies on testing with compositional metamorphic relations 被引量:1
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作者 董国伟 徐宝文 +2 位作者 陈林 聂长海 王璐璐 《Journal of Southeast University(English Edition)》 EI CAS 2008年第4期437-443,共7页
Some metamorphic relations (MR) are not good at detecting faults in metamorphic testing. In this paper, the method of making compositional MR (CMR) based on the speculative law of proposition logic is presented. T... Some metamorphic relations (MR) are not good at detecting faults in metamorphic testing. In this paper, the method of making compositional MR (CMR) based on the speculative law of proposition logic is presented. This method constructs new MRs by composing existing MRs in a pairwise way. Because CMR contains all the advantages of the MRs that form it, its fault detection performance is wonderful. On the other hand, the number of relations will decrease greatly after composing, so a program can be tested with much fewer test cases when CMRs are used. In order to research the characteristics of a CMR, two case studies are analyzed. The experimental results show that the CMR's performance is mostly determined by the central MRs forming it and the sequence of composition. Testing efficiency is improved greatly when CMRs are used. 展开更多
关键词 software testing metamorphic testing compositional metamorphic relation
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