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The use of LLMs for code generation has naturally extended to code testing and evaluation. As codebases grow in size and complexity, so does the need for automated test generation. Current approaches for LLM-based test generation rely on…

Software Engineering · Computer Science 2026-04-08 Alfonso Amayuelas , Firas Laakom , Piotr Piękos , Wenyi Wang , Yifan Xu , Yuhui Wang , Jürgen Schmidhuber , William Wang

Testing plays a crucial role in the software development cycle, enabling the detection of bugs, vulnerabilities, and other undesirable behaviors. To perform software testing, testers need to write code snippets that execute the program…

Software Engineering · Computer Science 2025-02-04 Wenhan Wang , Chenyuan Yang , Zhijie Wang , Yuheng Huang , Zhaoyang Chu , Da Song , Lingming Zhang , An Ran Chen , Lei Ma

Test generation has been a critical and labor-intensive process in hardware design verification. Recently, the emergence of Large Language Model (LLM) with their advanced understanding and inference capabilities, has introduced a novel…

Software Engineering · Computer Science 2025-01-03 Ruiyang Ma , Yuxin Yang , Ziqian Liu , Jiaxi Zhang , Min Li , Junhua Huang , Guojie Luo

Recent advances in automated test generation utilises language models to produce unit tests. While effective, language models tend to generate many incorrect tests with respect to both syntax and semantics. Although such incorrect tests can…

Software Engineering · Computer Science 2025-07-25 Michael Konstantinou , Renzo Degiovanni , Jie M. Zhang , Mark Harman , Mike Papadakis

Software testing is a critical aspect of software development, yet generating test cases remains a routine task for engineers. This paper presents a benchmark, CLOVER, to evaluate models' capabilities in generating and completing test cases…

Software Engineering · Computer Science 2025-02-14 Jiacheng Xu , Bo Pang , Jin Qu , Hiroaki Hayashi , Caiming Xiong , Yingbo Zhou

Coverage analysis is widely used but can suffer from high overhead. This overhead is especially acute in the context of Python, which is already notoriously slow (a recent study observes a roughly 30x slowdown vs. native code). We find that…

Software Engineering · Computer Science 2023-06-01 Juan Altmayer Pizzorno , Emery D Berger

Automatic test generation aims to save developers time and effort by producing test suites with reasonably high coverage and fault detection. However, the focus of search-based generation tools in maximizing coverage leaves other…

Software Engineering · Computer Science 2025-04-11 Geraldine Galindo-Gutierrez

Large language models (LLMs) have behaved well in generating unit tests for Java projects. However, the performance for covering the complex focal methods within the projects is poor. Complex methods comprise many conditions and loops,…

Software Engineering · Computer Science 2024-08-22 Zejun Wang , Kaibo Liu , Ge Li , Zhi Jin

Unit testing is crucial for detecting bugs in individual program units but consumes time and effort. Recently, large language models (LLMs) have demonstrated remarkable capabilities in generating unit test cases. However, several problems…

Software Engineering · Computer Science 2025-04-01 Siqi Gu , Quanjun Zhang , Kecheng Li , Chunrong Fang , Fangyuan Tian , Liuchuan Zhu , Jianyi Zhou , Zhenyu Chen

Large Language Models (LLMs) for code generation evolve rapidly through fine-tuning, merging, or new model releases. However, such updates can introduce regressions, not only in correctness but also in code quality and performance. To…

Software Engineering · Computer Science 2025-07-28 Altaf Allah Abbassi , Leuson Da Silva , Amin Nikanjam , Foutse Khomh

Large language models (LLMs) have shown significant advancements in code generation, but still face challenges on tasks beyond their basic capabilities. Recently, the notion of self-debugging has been proposed to boost the performance of…

Software Engineering · Computer Science 2025-01-23 Xiancai Chen , Zhengwei Tao , Kechi Zhang , Changzhi Zhou , Wanli Gu , Yuanpeng He , Mengdi Zhang , Xunliang Cai , Haiyan Zhao , Zhi Jin

While leveraging LLMs to automatically generate SystemVerilog assertions (SVAs) from natural language specifications holds great potential, existing techniques face a key challenge: LLMs often lack sufficient understanding of IC design,…

Hardware Architecture · Computer Science 2026-02-18 Yonghao Wang , Jiaxin Zhou , Yang Yin , Hongqin Lyu , Zhiteng Chao , Wenchao Ding , Jing Ye , Tiancheng Wang , Huawei Li

This work investigates the potential of tailoring Large Language Models (LLMs), specifically GPT3.5 and GPT4, for the domain of chip testing. A key aspect of chip design is functional testing, which relies on testbenches to evaluate the…

Hardware Architecture · Computer Science 2025-06-24 Jitendra Bhandari , Johann Knechtel , Ramesh Narayanaswamy , Siddharth Garg , Ramesh Karri

Testing is an important aspect in professional software development, both to avoid and identify bugs as well as to increase maintainability. However, increasing the number of tests beyond a reasonable amount hinders development progress. To…

Programming Languages · Computer Science 2022-05-23 Alexandros Efremidis , Joshua Schmidt , Sebastian Krings , Philipp Körner

Code generation with Large Language Models (LLMs) has been extensively studied and achieved remarkable progress. As a complementary aspect to code generation, test case generation is of crucial importance in ensuring the quality and…

Software Engineering · Computer Science 2024-04-23 Kefan Li , Yuan Yuan

Large Language Models (LLMs) have become a popular choice for many Natural Language Processing (NLP) tasks due to their versatility and ability to produce high-quality results. Specifically, they are increasingly used for automatic code…

Artificial Intelligence · Computer Science 2024-08-30 Jessica López Espejel , Mahaman Sanoussi Yahaya Alassan , Merieme Bouhandi , Walid Dahhane , El Hassane Ettifouri

Automated code generation is gaining significant importance in intelligent computer programming and system deployment. However, current approaches often face challenges in computational efficiency and lack robust mechanisms for code parsing…

Software Engineering · Computer Science 2025-06-24 Muntasir Adnan , Zhiwei Xu , Carlos C. N. Kuhn

Register Transfer Level (RTL) design validation is a crucial stage in the hardware design process. We present a new approach to enhancing RTL design validation using available software techniques and tools. Our approach converts the source…

Software Engineering · Computer Science 2016-02-22 Yu Zhang , Wenlong Feng , Mengxing Huang

Implementing automated unit tests is an important but time-consuming activity in software development. To assist developers in this task, many techniques for automating unit test generation have been developed. However, despite this effort,…

Software Engineering · Computer Science 2025-01-16 Rangeet Pan , Myeongsoo Kim , Rahul Krishna , Raju Pavuluri , Saurabh Sinha

Branch coverage of source code is a very widely used test criterion. Moreover, branch coverage is a similar problem to line coverage, MC/DC and the coverage of assertion violations, certain runtime errors and various other types of test…

Software Engineering · Computer Science 2021-05-13 Nicky Williams