基于场景法的列控系统等级转换功能测试用例设计

为了改善当前列控系统等级转换功能测试用例覆盖不全面的问题,以CTCS-2级转CTCS-3级功能为研究对象,采用场景法分析转换逻辑,设计测试用例。首先,分析CTCS-2级转CTCS-3级的功能逻辑;然后,介绍场景法设计测试用例的过程及基本流和备选流划分原则;最后,采用场景法对CTCS-2级转CTCS-3级过程中的基本流和备选流进行划分,确定基本流和备选流有向图,设计测试用例。结果表明,该方法设计的测试用例能够提高列控系统功能性和安全性测试的完备性,从而保障列控系统产品的质量。

Design of Test Cases for Level Transition Function of Train Control System Based on Scene Method

In order to improve the incomprehensive test case coverage of the current test system level conversion function, CTCS-2 level converted to CTCS-3 level function is taken as the research object, and the conversion logic is analyzed by the scene method to design test cases. First, the function logic of CTCS-2 converted to CTCS-3 is analyzed. Then, the process of designing test cases by scenario method and the principle of basic stream and alternative stream division are introduced. Finally, the scene method is used to divide the elementary flow and the alternative flow in the process of converting CTCS-2 to CTCS-3, to determine the basic flow and the alternative flow directed graph and to design test cases. The results show that the test cases designed by this method can improve the completeness of the functional and safety tests of the train control system, thus ensuring the quality of train control system products.