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Imitation learning from a large set of human demonstrations has proved to be an effective paradigm for building capable robot agents. However, the demonstrations can be extremely costly and time-consuming to collect. We introduce MimicGen,…

Unit tests play a vital role in uncovering potential faults in software. While tools like EvoSuite focus on maximizing code coverage, recent advances in large language models (LLMs) have shifted attention toward LLM-based test generation.…

Software Engineering · Computer Science 2026-04-17 Guancheng Wang , Qinghua Xu , Lionel Briand , Kui Liu

The prevalence of software systems has become an integral part of modern-day living. Software usage has increased significantly, leading to its growth in both size and complexity. Consequently, software development is becoming a more…

Software Engineering · Computer Science 2023-06-07 Tiago Dias , Arthur Batista , Eva Maia , Isabel Praça

We introduce UniGen, a unified multimodal large language model (MLLM) capable of image understanding and generation. We study the full training pipeline of UniGen from a data-centric perspective, including multi-stage pre-training,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Rui Tian , Mingfei Gao , Mingze Xu , Jiaming Hu , Jiasen Lu , Zuxuan Wu , Yinfei Yang , Afshin Dehghan

Test case maintainability is an important concern, especially in open source and distributed development environments where projects typically have high contributor turnover with varying backgrounds and experience, and where code ownership…

Software Engineering · Computer Science 2019-10-01 Danielle Gonzalez , Joanna C. S. Santos , Andrew Popovich , Mehdi Mirakhorli , Mei Nagappan

In this paper, we aim at the automated unit coverage-based testing for embedded software. To achieve the goal, by analyzing the industrial requirements and our previous work on automated unit testing tool CAUT, we rebuild a new tool,…

Software Engineering · Computer Science 2018-06-19 Chengyu Zhang , Yichen Yan , Hanru Zhou , Yinbo Yao , Ke Wu , Ting Su , Weikai Miao , Geguang Pu

To adequately test modern code generation systems, evaluation benchmarks must execute and test the code generated by the system. However, these execution and testing requirements have largely limited benchmarks to settings where code is…

Software Engineering · Computer Science 2024-10-04 Yiqing Xie , Alex Xie , Divyanshu Sheth , Pengfei Liu , Daniel Fried , Carolyn Rose

Fuzzing is a technique widely used in vulnerability detection. The process usually involves writing effective fuzz driver programs, which, when done manually, can be extremely labor intensive. Previous attempts at automation leave much to…

Software Engineering · Computer Science 2021-03-02 Mingrui Zhang , Jianzhong Liu , Fuchen Ma , Huafeng Zhang , Yu Jiang

Many software systems originate as prototypes or minimum viable products (MVPs), developed with an emphasis on delivery speed and responsiveness to changing requirements rather than long-term code maintainability. While effective for rapid…

Software Engineering · Computer Science 2026-04-06 Ema Smolic , Mario Brcic , Luka Hobor , Mihael Kovac

Automated unit test case generation tools facilitate test-driven development and support developers by suggesting tests intended to identify flaws in their code. Existing approaches are usually guided by the test coverage criteria,…

Software Engineering · Computer Science 2021-05-24 Michele Tufano , Dawn Drain , Alexey Svyatkovskiy , Shao Kun Deng , Neel Sundaresan

Automated random testing has shown to be an effective approach to finding faults but still faces a major unsolved issue: how to generate test inputs diverse enough to find many faults and find them quickly. Stateful testing, the automated…

Software Engineering · Computer Science 2013-08-14 Yi Wei , Hannes Roth , Carlo A. Furia , Yu Pei , Alexander Horton , Michael Steindorfer , Martin Nordio , Bertrand Meyer

Context: Machine learning (ML) may enable effective automated test generation. Objective: We characterize emerging research, examining testing practices, researcher goals, ML techniques applied, evaluation, and challenges. Methods: We…

Software Engineering · Computer Science 2023-04-18 Afonso Fontes , Gregory Gay

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

Model-based testing relies on behavior models for the generation of model traces: input and expected output---test cases---for an implementation. We use the case study of an automotive network controller to assess different test suites in…

Observability is important to ensure the reliability of microservice applications. These applications are often prone to failures, since they have many independent services deployed on heterogeneous environments. When employed "correctly",…

Software Engineering · Computer Science 2024-09-26 Maria C. Borges , Joshua Bauer , Sebastian Werner

Mobile apps often suffer from functional bugs that do not cause crashes but instead manifest as incorrect behaviors under specific user interactions. Such bugs are difficult to detect automatically because they often lack explicit test…

Software Engineering · Computer Science 2026-04-16 Yiheng Xiong , Shiwen Song , Bo Ma , Ting Su , Xiaofei Xie

In the context of black-box testing, generating test cases through model mutation is known to produce powerful test suites but usually has the drawback of being prohibitively expensive. This paper presents a new version of the tool…

Software Engineering · Computer Science 2016-12-22 Willibald Krenn , Rupert Schlick

Meta-learning and few-shot prompting are viable methods to induce certain types of compositional behaviour. However, these methods can be very sensitive to the choice of support examples used. Choosing good supports from the training data…

Computation and Language · Computer Science 2024-10-15 Sam Spilsbury , Pekka Marttinen , Alexander Ilin

In literature, we can find research tools to automatically generate test cases for RESTful APIs, addressing the specificity of this particular programming domain. However, no direct comparison of these tools is available to guide developers…

Software Engineering · Computer Science 2021-08-19 Davide Corradini , Amedeo Zampieri , Michele Pasqua , Mariano Ceccato

One of the main challenges that developers face when testing their systems lies in engineering test cases that are good enough to reveal bugs. And while our body of knowledge on software testing and automated test case generation is already…

Software Engineering · Computer Science 2021-11-09 Maurício Aniche , Christoph Treude , Andy Zaidman