改进的正交试验法在发动机控制软件测试中的应用

Application of Improved Orthogonal Experiment Method for Aero-engine Control Software Testing

在发动机控制软件测试中,因为输入的无限性,无法对软件进行全面测试,如何从输入中挑选出适量的典型性的数据是需要解决的一个问题。利用正交试验法的代表性可以大量精简测试用例,但是没有考虑输入间的约束,直接使用会存在部分无价值的用例,因此对正交试验法进行了改进,引入输入间约束,开发工具可以自动生成在符合约束前提下的正交测试用例表,改进方法应用于航空发动机控制软件测试,可以有效地改善测试效果,提升测试效率。

It′s difficult to test completely because of inexhaustibility of input′s combination in aero engine control software testing.How to select representational and representative data from large numbers of inputs need to resolve.It can overcome the hardship of a large number of test cases versus using the representation of orthogonal experiment,but it usually doesn′t consider restriction of inputs.It may bring many invalid testcases if we use orthogonal experiment method without preamble.So,the paper researchs orthogonal experiment method combined with restriction of inputs,produces testcases which satisfied orthogonal and restriction of inputs automatically by robot.The results shows it can improve testing effect and efficiency greatly.