Abstract
One of the most expensive and time-consuming components of the debugging process is locating the errors or faults. To locate faults, developers must identify statements involved in failures and select suspicious statements that might contain faults. This paper presents a new technique that uses visualization to assist with these tasks. The technique uses color to visually map the participation of each program statement in the out ome of the execution of the program with a test suite, onsisting of both passed and failed test cases. Based on this visual mapping, a user can inspe t the statements in the program, identify statements involved in failures, and locate potentially faulty statements. The paper also describes a prototype tool that implements our technique along with a set of empirical studies that use the tool for evaluation of the technique. The empirical studies show that, for the subject we studied, the technique can be eeffective in helping a user locate faults in a program.
keywords: software visualization,fault localization,debugging,testing
总体评价
Motivation
人工定位bug是想当费事的事情，因此希望使用自动执行测试的办法在执行过程中使用不同的颜色以及颜色的不同深度来映射代码的可信程度，帮助用户来定位bug