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A Package Level Regression Test Selection Approach for java software systems

IEEE Access 2025年 13卷 87848-87861页

作者： Al-Refai, Mohammed Hammad, Mahmoud M. Faculty of Computer and Information Technology Computer Science Department Jordan university of science and technology P.O. Box 3030 Irbid 22110 Jordan Ajman University Department of Information Technology Faculty of Engineering and Information Technology Ajman United Arab Emirates Jordan University of Science and Technology Faculty of Computer and Information Technology Software Engineering Department P.O. Box 3030 Irbid 22110 Jordan

Regression testing of software systems is an important and critical activity but can be expensive and resource-intensive. An approach to enhance its efficiency is Regression Test Selection (RTS), which selectively re-executes a subset of relevant tests that are impacted by code modifications. Previous studies on static and dynamic RTS for java software have shown that selecting tests at the class level is more effective than using finer granularities like methods or statements. Nevertheless, RTS at the package level, which is a coarser granularity than class level, has not been thoroughly investigated or evaluated for java projects. To address this gap, we propose PKRTS, a static package-level RTS approach that utilizes the structural dependencies of the software system under test to construct a package-level dependency graph. PKRTS analyzes dependencies in the graph and identifies relevant tests that can reach modified packages, i.e., packages containing altered classes. In contrast to conventional static RTS techniques, PKRTS implicitly considers dynamic dependencies, such as java reflection and virtual method calls, among classes belonging to the same package by treating all those classes as a single cohesive node in the dependency graph. We evaluated PKRTS on 885 revisions of 9 open-source java projects, with its performance compared to Ekstazi, a state-of-the-art dynamic class-level approach, and STARTS, a state-of-the-art static class-level approach. We used Ekstazi as the baseline to measure the safety and precision violations of PKRTS and STARTS. The results indicated that PKRTS outperformed static class-level RTS in terms of safety violation, which measures the extent to which relevant test cases are missed. PKRTS showed an average safety violation of 2.29%, while STARTS recorded 5.94%. Despite this, PKRTS demonstrated lower average precision violation than class-level RTS, as it selected a higher number of irrelevant test cases. The average reduction in te

关键词： Dynamic analysis java software systems Package-level dependencies Regression test selection software testing Static analysis

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A Case Study on the Relationship between Code Ownership and Refactoring Activities in a java software System 7

A Case Study on the Relationship between Code Ownership and ...

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7th IEEE/ACM International Workshop on Emerging Trends in software Metrics (WETSoM)

作者： Orru, Matteo Marchesi, Michele Univ Cagliari Dept Elect & Elect Engn Piazza DArmi I-09123 Cagliari Italy

ISBN: (纸本)9781450341776

Refactoring, the activity of changing source code design without affecting its external behavior, is a widely used practice among developers, since it is considered to positively affect the quality of software systems. However, there are some "human factors" to be considered while performing refactoring, including developers knowledge of systems architecture. Recent studies showed how much "people" metrics, such as code ownership, might affect software quality as well. In this preliminary study we investigated the relationship between code ownership and refactoring activity performed by developers. This study can provide useful insights on who performs refactoring and help team leaders to properly manage human resources during software development.

关键词： Code ownership Refactoring Developers Activity java software systems

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Assessment of Approaches for the Analysis of Refactoring Activity on software Repositories An Empirical Study

Assessment of Approaches for the Analysis of Refactoring Act...

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Workshop on Large Scale Agile Development. / 1st International Workshop on Emerging Trends in DevOps and Infrastructure / 2nd International Workshop on Agile Development of Safety-Critical software / International Workshop on Refactoring and Testing

作者： Orru, Matteo Marchesi, Michele Univ Cagliari Dept Elect & Elect Engn Piazza DArmi 09123 Cagliari Italy

ISBN: (纸本)9781450341349

Refactoring is the practice of changing source code without altering its external behavior. It is widely used since it is acknowledged to have a positive effect on software quality. However, different studies on the impact of Refactoring on software quality led to contrasting results. This might be due also to the fact that research works on Refactoring rely on different approaches to collect information about the refactoring activity on software repositories. Having a reliable approach is fundamental to draw solid conclusions. In this paper we empirically analyzed two of the most popular approaches to detect the refactoring activity on software repositories, finding that they return different outcomes. These results should be taken into account by researchers while designing the experimental settings of their studies.

关键词： Refactoring Mining software Repositories Developers Activity java software systems

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