对于软件系统来说，接口是连通所有配置项的桥梁。系统的接口一旦发生异常，轻则导致整个系统的运行不畅，严重的会导致系统无法正常工作，其风险性不言而喻。因此在软件开发阶段尽可能地发现接口缺陷可以大大降低软件成本，并提升软件的稳定性。但是当前针对配置项间的接口测试主要依靠网络上的一些网络口/串口报文收发工具。这些工具虽然能满足基本的报文收发功能，却无法从测试的角度针对各个报文字段灵活地生成正常/异常测试数据并根据测试需要灵活收发。文中探讨了接口测试需求，并在此基础上给出了通过VBA技术实现的工具实例。%For the software system,the interface is the bridge for all the configuration items. In case that the interface of the system is ab-normal,it will cause the operation of the whole system which is not smooth,it will even cause the whole system can't work normally. Its risk is self-evident. Therefore,discovering the bugs of interface in the software development period as much as possible can greatly reduce the cost of the software,and enhance the stability of the software. But the interface of the testing for the configuration items mainly relies on some network ports on the Internet or serial messaging tools. Although these tools can satisfy the basic function of the message receiv-ing and sending,it can't create flexibly the normal or abnormal testing data from the view of testing each message field and it can't re-ceive and send flexibly according to testing needs. It discusses the interface testing requirements and then gives the tool cases through the VBA technology which has practical reference value.
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