首页|Understanding and Identifying Technical Debt in the Co-Evolution of Production and Test Code

Understanding and Identifying Technical Debt in the Co-Evolution of Production and Test Code

扫码查看
原文链接
  • NETL
  • NSTL
  • IEEE
The co-evolution of production and test code (PT co-evolution) has received increasing attention in recent years. However, we found that existing work did not comprehensively study various PT co-evolution scenarios, such as the qualification and persistence of their effects on software. Inspired by technical debt (TD), we refer to TD generated during the co-evolution between production and test code as PT co-evolution technical debt (PTCoTD). To better understand PT co-evolution, we first conducted an exploratory study on its characteristics on 15 open-source projects, finding unbalanced PT co-evolution prevalent and summarizing five potential PT flaws. Then we proposed an approach to identify and quantify PTCoTDs of these flaw patterns, considering evolutionary and structural relationships. We also built prediction models to describe cost trajectories and rank all PTCoTDs to prioritize expensive ones. The evaluation on the 15 projects shows that our approach can identify PTCoTDs that deserve attention. The identified PTCoTDs account for about half of the project's total maintenance costs, and the cost proportion of the expensive Top-5 is 1.8x more than the file proportion they contain. Almost all covered maintenance costs persist as PTCoTD in the future, with an average increase of 6.8% between the last two releases. Our approach also accurately predicts the costs of PTCoTD with an average prediction deviation of only 8.3%. Our study provides valuable insights into PT co-evolution scenarios and their effects, which can guide practices and inspire future work on software testing and maintenance.

CostsMaintenanceProductionCodesSoftwarePredictive modelsFault diagnosisTrajectoryReviewsHistory

Yimeng Guo、Zhifei Chen、Lu Xiao、Lin Chen、Yanhui Li、Yuming Zhou

展开 >

State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China

School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China

Department of Systems and Enterprises, Charles V. Schaefer, Jr. School of Engineering and Science, Stevens Institute of Technology, Hoboken, NJ, USA

2025

10.1109/TSE.2025.3553112

IEEE transactions on software engineering

IEEE transactions on software engineering

ISSN：
年,卷(期)：2025.51(5)
  • 102