软件可靠性耦合度量的测试用例约简优化

Optimization of Test Case Reduction for Software Reliability Coupling Measurement

常规软件测试用例中存在冗余用例,会提高软化测试的复杂度,为保证软件可靠性测试的精度,降低运行代价,提出一种基于耦合度量的软件可靠性测试用例约简优化方法。对软件可靠性测试用例展开耦合度量,保留耦合程度高的软件可靠性测试用例,对剩余测试用例展开约简优化,去除冗余用例;在最小用例集原则的基础上,建立软件可靠性测试用例约简优化目标函数,并将蚁群算法引入目标函数的求解过程中,获得约简后的最优软件可靠性测试用例集,完成软件可靠性测试用例的约简优化。实验结果表明,所提方法的约简效果好、运行代价小、丢失率低。

At present,some redundant test cases exist in conventional software test cases,which may increase the complexity of softening tests.In order to ensure the accuracy of reliability tests and reduce the cost,a method of reducing and optimizing software reliability test cases based on coupling metrics was put forward.Firstly,we performed the coupling measurement for software reliability test cases,and retained the case with high coupling degree.Then we carried out the reduction optimization for the remaining test cases,thus removing redundant cases.According to the principle of minimum case set,we constructed the objective function of reducing and optimizing sofware reliability test cases.Meanwhile,the ant colony algorithm was introduced into the solution process of the objective function,so that we obtained the optimal case set.Finally,we completed the reduction and optimization of software reliability test cases.Experimental results show that the proposed method has good reduction effect,low running cost and low loss rate.