A Tool For Detecting Duplicated Test Code Based On Test Coverage to Assist TDD

概要

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The amount of test code has increased as the test technology has developed and the amount of duplicated test code that is redundant has also increased. Duplicated test code that does not change defects which are found when testing software even if it is removed. This increases the size of test code and decreases the efficiency of execution and maintenance of software testing. We therefore propose techniques of detecting duplicated test code based on test coverage supporting multiple programming languages. We define the inclusion relation of test code based on test coverage and present techniques of detection and the implementation of a detection tool supporting three programming languages: Java, C and Python. We explain an experiment for detecting duplicated test code in open source software with the detection tool and discuss the benefits of the proposed techniques. Moreover, we show that the duplicated test code that is detected with the detection tool does not influence the results obtained from measuring the test coverage and demonstrate that the change in using test coverage can change the measurement criteria.
2011-06-23