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Retrieval Augmented Generation (RAG) has advanced software engineering tasks but remains underexplored in unit test generation. To bridge this gap, we investigate the efficacy of RAG-based unit test generation for machine learning (ML/DL)…

Software Engineering · Computer Science 2025-10-20 Jiho Shin , Nima Shiri Harzevili , Reem Aleithan , Hadi Hemmati , Song Wang

In large-scale software systems, there are often no fully-fledged bug reports with human-written descriptions when an error occurs. In this case, developers rely on stack traces, i.e., series of function calls that led to the error. Since…

Software Engineering · Computer Science 2024-12-20 Egor Shibaev , Denis Sushentsev , Yaroslav Golubev , Aleksandr Khvorov

Regression testing is crucial in ensuring that pure code refactoring does not adversely affect existing software functionality, but it can be expensive, accounting for half the cost of software maintenance. Automated test case generation…

Software Engineering · Computer Science 2024-01-05 Alejandra Duque-Torres , Claus Klammer , Dietmar Pfahl , Stefan Fischer , Rudolf Ramler

Large Language Models (LLMs) are increasingly applied to automated software testing, yet their ability to generalize beyond memorized patterns and reason about natural language bug reports remains unclear. We present a systematic evaluation…

Software Engineering · Computer Science 2025-10-08 Irtaza Sajid Qureshi , Zhen Ming , Jiang

During testing, developers can place oracles externally or internally with respect to a method. Given a faulty execution state, i.e., one that differs from the expected one, an oracle might be unable to expose the fault if it is placed at a…

Software Engineering · Computer Science 2020-11-24 Gunel Jahangirova , David Clark , Mark Harman , Paolo Tonella

Regression bugs occur whenever software functionality that previously worked as desired stops working, or no longer works as expected. Code changes, such as bug fixes or new feature work, may result in a regression bug. Regression bugs are…

Software Engineering · Computer Science 2015-05-07 Dekel Cohen , Amiram Yehudai

The null-type is a major source of faults in Java programs, and its overuse has a severe impact on software maintenance. Unfortunately traditional mutation testing operators do not cover null-type faults by default, hence cannot be used as…

Software Engineering · Computer Science 2020-04-10 Ali Parsai , Serge Demeyer

Refactoring is the art of improving the design of a system without altering its external behavior. Refactoring has become a well established and disciplined software engineering practice that has attracted a significant amount of research…

Software Engineering · Computer Science 2021-03-26 Eman Abdullah AlOmar , Anthony Peruma , Mohamed Wiem Mkaouer , Christian Newman , Ali Ouni , Marouane Kessentini

The main stretch in the paper is buffer overflow anomaly occurring in major source codes, designed in various programming language. It describes the various as to how to improve your code and increase its strength to withstand security…

Cryptography and Security · Computer Science 2012-08-17 Manas Gaur

Automatic Program translation has enormous application value and hence has been attracting significant interest from AI researchers. However, we observe that current program translation models still make elementary syntax errors,…

Software Engineering · Computer Science 2023-10-24 Mengnan Qi , Yufan Huang , Maoquan Wang , Yongqiang Yao , Zihan Liu , Bin Gu , Colin Clement , Neel Sundaresan

During compilation from Java source code to bytecode, some information is irreversibly lost. In other words, compilation and decompilation of Java code is not symmetric. Consequently, the decompilation process, which aims at producing…

Software Engineering · Computer Science 2019-12-19 Nicolas Harrand , César Soto-Valero , Martin Monperrus , Benoit Baudry

Solving an NP-hard optimization problem often requires reformulating it for a specific solver -- quantum hardware, a commercial optimizer, or a domain heuristic. A tool for polynomial-time reductions between hard problems would let…

Artificial Intelligence · Computer Science 2026-05-08 Xi-Wei Pan , Shi-Wen An , Jin-Guo Liu

Unit tests often lack concise summaries that convey test intent, especially in auto-generated or poorly documented codebases. Large Language Models (LLMs) offer a promising solution, but their effectiveness depends heavily on how they are…

Software Engineering · Computer Science 2025-11-11 Anamul Haque Mollah , Ahmed Aljohani , Hyunsook Do

Web applications are distributed applications, they are programs that run on more than one computer and communicate through a network or server. This very distributed nature of web applications, combined with the scale and sheer complexity…

Cryptography and Security · Computer Science 2022-10-17 Akash Nagaraj , Bishesh Sinha , Mukund Sood , Yash Mathur , Sanchika Gupta , Dinkar Sitaram

Static analysis tools are commonly used to detect defects before the code is released. Previous research has focused on their overall effectiveness and their ability to detect defects. However, little is known about the usage patterns of…

Software Engineering · Computer Science 2023-11-14 Georgios Liargkovas , Evangelia Panourgia , Diomidis Spinellis

Context: Code refactoring is widely recognized as an essential software engineering practice that improves the understandability and maintainability of source code. Several studies attempted to detect refactoring activities through mining…

Software Engineering · Computer Science 2025-02-07 Eman Abdullah AlOmar

Iteration is a programming operation that traditionally refers to visiting the elements of a data structure in sequence. However, modern programming systems such as Rust, Java, and C# generalise iteration far beyond the traditional use…

Logic in Computer Science · Computer Science 2022-10-19 Aurel Bílý , Jonas Hansen , Peter Müller , Alexander J. Summers

Test smells, similar to code smells, can negatively impact both the test code and the production code being tested. Despite extensive research on test smells in languages like Java, Scala, and Python, automated tools for detecting test…

Software Engineering · Computer Science 2024-05-08 Partha P. Paul , Md Tonoy Akanda , M. Raihan Ullah , Dipto Mondal , Nazia S. Chowdhury , Fazle M. Tawsif

Despite huge software engineering efforts and programming language support, resource and memory leaks are still a troublesome issue, even in memory-managed languages such as Java. Understanding the properties of leak-inducing defects, how…

Software Engineering · Computer Science 2019-12-17 Mohammadreza Ghanavati , Diego Costa , Janos Seboek , David Lo , Artur Andrzejak

Instructed code editing is a significant challenge for large language models (LLMs). On the EditBench benchmark, 39 of 40 evaluated models obtain a task success rate (TSR) below 60 percent, highlighting a gap between general code generation…

Software Engineering · Computer Science 2026-04-29 Noam Tarshish , Nofar Selouk , Daniel Hodisan , Bar Ezra Gafniel , Yuval Elovici , Asaf Shabtai , Eliya Nachmani