基于TTCN-3的CTCS-3级车载设备虚拟分布式测试框架研究及应用

Research and Application of Virtual Distributed Test Framework of On-board CTCS-3 Level Equipment Based on TTCN-3

分析了客运专线CTCS-3级列控系统车载设备软件的功能测试需求和现状,以及TTCN-3测试语言在基于消息黑盒测试领域的优势;在此基础上提出了基于TTCN-3语言的分布式虚拟车载设备测试框架;并根据CTCS-3级规范中提取了车载设备的功能需求作为测试案例,在TTWorkbench环境中实现了对仿真车载设备的功能测试和实时性测试,对测试数据收集分析,验证了测试框架的可行性和优势。

This paper analyses the requirements and the status of functional testing for on-board equipment TTCN-3testing language in message-based black box testing,and then presents a virtual distributed testing framework of on-board equipment of CTCS-3level based on TTCN-3testing language.At last,taking related functional requirements from the CTCS-3Functional Requirement Specification as testing cases,we conducted functional testing and real-time performance testing of the simulated on-board equipment with TTworkbench tool.Through collecting and analyzing the testing data,the feasibility and advantages of the testing framework were validated.