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As REST APIs have become widespread in modern web services, comprehensive testing of these APIs is increasingly crucial. Because of the vast search space of operations, parameters, and parameter values, along with their dependencies and…

Software Engineering · Computer Science 2025-03-05 Tyler Stennett , Myeongsoo Kim , Saurabh Sinha , Alessandro Orso

Modern web services rely heavily on REST APIs, typically documented using the OpenAPI specification. The widespread adoption of this standard has resulted in the development of many black-box testing tools that generate tests based on…

Software Engineering · Computer Science 2025-04-07 Myeongsoo Kim , Saurabh Sinha , Alessandro Orso

This paper presents a system that uses Large Language Models (LLMs)-based agents to automate the API-first development of RESTful microservices. This system helps to create an OpenAPI specification, generate server code from it, and refine…

Recent advancements in integrating large language models (LLMs) with application programming interfaces (APIs) have gained significant interest in both academia and industry. Recent work demonstrates that these API-based agents exhibit…

Software Engineering · Computer Science 2025-01-24 Haiyang Shen , Yue Li , Desong Meng , Dongqi Cai , Sheng Qi , Li Zhang , Mengwei Xu , Yun Ma

Cloud high quality API (Application Programming Interface) testing is essential for supporting the API economy. Autotest is a random test generator that addresses this need. It reads the API specification and deduces a model used in the…

Software Engineering · Computer Science 2022-11-08 Eitan Farchi , Krithika Prakash , Vitali Sokhin

Large Language Models (LLMs) are increasingly used to support software testing tasks, yet there is little evidence of their effectiveness for REST API testing in industrial settings. To address this gap, we replicate our earlier work on…

Software Engineering · Computer Science 2026-01-27 Tolgahan Bardakci , Andreas Faes , Mutlu Beyazit , Serge Demeyr

The proliferation of Large Language Models like ChatGPT has significantly advanced language understanding and generation, impacting a broad spectrum of applications. However, these models predominantly excel in text-based tasks, overlooking…

Computation and Language · Computer Science 2023-11-23 Xiao Liu , Jianfeng Lin , Jiawei Zhang

The growing need for scalable, maintainable, and fast-deploying systems has made microservice architecture widely popular in software development. This paper presents a system that uses Large Language Models (LLMs) to automate the API-first…

Software Engineering · Computer Science 2025-03-05 Saurabh Chauhan , Zeeshan Rasheed , Abdul Malik Sami , Zheying Zhang , Jussi Rasku , Kai-Kristian Kemell , Pekka Abrahamsson

Despite being one of the largest and most popular projects, the official Android framework has only provided test cases for less than 30% of its APIs. Such a poor test case coverage rate has led to many compatibility issues that can cause…

Software Engineering · Computer Science 2022-08-30 Xiaoyu Sun , Xiao Chen , Yanjie Zhao , Pei Liu , John Grundy , Li Li

Scripting interfaces enable users to automate tasks and customize software workflows, but creating scripts traditionally requires programming expertise and familiarity with specific APIs, posing barriers for many users. While Large Language…

Artificial Intelligence · Computer Science 2026-02-09 Paiheng Xu , Gang Wu , Xiang Chen , Tong Yu , Chang Xiao , Franck Dernoncourt , Tianyi Zhou , Wei Ai , Viswanathan Swaminathan

APIs play a pivotal role in modern software development by enabling seamless communication and integration between various systems, applications, and services. Component-based API synthesis is a form of program synthesis that constructs an…

Software Engineering · Computer Science 2025-02-24 Hua Zhong , Shan Jiang , Sarfraz Khurshid

Large Language Models (LLMs) are widely used in Software Engineering (SE) for various tasks, including generating code, designing and documenting software, adding code comments, reviewing code, and writing test scripts. However, creating…

Software Engineering · Computer Science 2024-06-12 Abdul Malik Sami , Zeeshan Rasheed , Muhammad Waseem , Zheying Zhang , Herda Tomas , Pekka Abrahamsson

Unit tests play a key role in ensuring the correctness of software. However, manually creating unit tests is a laborious task, motivating the need for automation. Large Language Models (LLMs) have recently been applied to this problem,…

Software Engineering · Computer Science 2023-12-12 Max Schäfer , Sarah Nadi , Aryaz Eghbali , Frank Tip

Automated test generation has become a key technique for ensuring software quality, particularly in modern API-based architectures. However, automatically generated test cases are typically assigned non-descriptive names (e.g., test0,…

Software Engineering · Computer Science 2025-12-02 Philip Garrett , Juan P. Galeotti , Andrea Arcuri , Alexander Poth , Olsi Rrjolli

Digital tool-based agents, powered by Large Language Models (LLMs), that invoke external Application Programming Interfaces (APIs) often rely on documentation to understand API functionality. However, such documentation is frequently…

Artificial Intelligence · Computer Science 2025-11-13 Bhrij Patel , Ashish Jagmohan , Aditya Vempaty

Large Language Models (LLMs) have demonstrated remarkable capabilities across various domains, with code generation emerging as a key area of focus. While numerous benchmarks have been proposed to evaluate their code generation abilities,…

Large language model (LLM)-powered assistants are increasingly used for generating program code and unit tests, but their application in acceptance testing remains underexplored. To help address this gap, this paper explores the use of LLMs…

Software Engineering · Computer Science 2026-02-26 Margarida Ferreira , Luis Viegas , Joao Pascoal Faria , Bruno Lima

Large language models (LLMs) have limitations in handling tasks that require real-time access to external APIs. While several benchmarks like ToolBench and APIGen have been developed to assess LLMs' API-use capabilities, they often suffer…

Artificial Intelligence · Computer Science 2024-09-25 Woojeong Kim , Ashish Jagmohan , Aditya Vempaty

The advancement of function-calling agent models requires diverse, reliable, and high-quality datasets. This paper presents APIGen, an automated data generation pipeline designed to synthesize verifiable high-quality datasets for…

Testing web forms is an essential activity for ensuring the quality of web applications. It typically involves evaluating the interactions between users and forms. Automated test-case generation remains a challenge for web-form testing: Due…

Software Engineering · Computer Science 2025-05-20 Tao Li , Chenhui Cui , Rubing Huang , Dave Towey , Lei Ma