Showing papers by "Hyunsook Do published in 2004"

Empirical studies of test case prioritization in a JUnit testing environment

Abstract: Test case prioritization provides a way to run test cases with the highest priority earliest. Numerous empirical studies have shown that prioritization can improve a test suite's rate of fault detection, but the extent to which these results generalize is an open question because the studies have all focused on a single procedural language, C, and a few specific types of test suites, in particular, Java and the JUnit testing framework are being used extensively in practice, and the effectiveness of prioritization techniques on Java systems tested under JUnit has not been investigated. We have therefore designed and performed a controlled experiment examining whether test case prioritization can be effective on Java programs tested under JUnit, and comparing the results to those achieved in earlier studies. Our analyses show that test case prioritization can significantly improve the rate of fault detection of JUnit test suites, but also reveal differences with respect to previous studies that can be related to the language and testing paradigm.

Infrastructure support for controlled experimentation with software testing and regression testing techniques

Abstract: Where the creation, understanding, and assessment of software testing and regression testing techniques are concerned, controlled experimentation is an indispensable research methodology. Obtaining the infrastructure necessary to support such experimentation, however, is difficult and expensive. As a result, progress in experimentation with testing techniques has been slow, and empirical data on the costs and effectiveness of techniques remains relatively scarce. To help address this problem, we have been designing and constructing infrastructure to support controlled experimentation with testing and regression testing techniques. This paper reports on the challenges faced by researchers experimenting with testing techniques, including those that inform the design of our infrastructure. The paper then describes the infrastructure that we are creating in response to these challenges, and that we are now making available to other researchers, and discusses the impact that this infrastructure has and can be expected to have.

Building an infrastructure to support experimentation with software testing techniques

Abstract: Experimentation is necessary to provide advances in research on software testing, but without infrastructure to support that experimentation, progress cannot occur. To help with this problem, we have been designing and constructing infrastructure to support controlled experimentation with software testing techniques. This position paper describes our efforts, and the challenges faced in creating infrastructure and making it available.