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Zaidman, A.E. (author), Khatami, Ali (author)Software engineers employ a variety of approaches to ensure the quality of software systems, including software testing, modern code review, automated static analysis, build automation, and continuous integration. To make effective decisions regarding quality assurance (QA), software engineers need to have an awareness of (1) the QA approaches...conference paper 2023
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Deljouyi, A. (author), Zaidman, A.E. (author)Automatic unit test generators such as EvoSuite are able to automatically generate unit test suites with high coverage. This removes the burden of writing unit tests from developers, but the generated tests are often difficult to understand for them. In this paper, we introduce the MicroTestCarver approach that generates unit tests starting from...conference paper 2023
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Brandt, C.E. (author), Wang, D. (author), Zaidman, A.E. (author)Test amplification generates new tests by mutating existing, developer-written tests and keeping those tests that improve the coverage of the test suite. Current amplification tools focus on starting from a specific test and propose coverage improvements all over a software project, requiring considerable effort from the software engineer to...conference paper 2023
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Ardıç, B.A. (author), Zaidman, A.E. (author)Software testing is generally acknowledged to be an important weapon in the arsenal of software engineers to produce correct and reliable software systems. However, given the importance of the topic, little is known about where software engineers get their testing knowledge and skills from. Is this through (higher) education, training...conference paper 2023
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van Dinten, I. (author), Zaidman, A.E. (author), Panichella, A. (author)Test case prioritization techniques have emerged as effective strategies to optimize this process and mitigate the regression testing costs. Commonly, black-box heuristics guide optimal test ordering, leveraging information retrieval (e.g., cosine distance) to measure the test case distance and sort them accordingly. However, a challenge...conference paper 2023
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Hugtenburg, S. (author), Zaidman, A.E. (author)Community Question Answering (CQA) platforms like Stack Over- flow enable gamified and moderated community-driven knowledge creation. We report on our experiences of introducing Stack Over- flow in our Computer Science BSc programme and explore whether these platforms can (1) reduce the workload of lecturers in answer- ing questions in large...conference paper 2022
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Botocan, Cristian Alexandru (author), Deshmukh, Piyush (author), Makridis, Pavlos (author), Huidobro, Jorge Romeu (author), Sundarrajan, Mathanrajan (author), Aniche, Maurício (author), Zaidman, A.E. (author)Software testing is one of the most important aspects of modern software development. To ensure the quality of the software, developers should ideally write and execute automated tests regularly as their code-base evolves. TestKnight, a plugin for the IntelliJ IDEA integrated development environment (IDE), aims to help Java developers improve...conference paper 2022
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Boone, Casper (author), Brandt, C.E. (author), Zaidman, A.E. (author)The most common reason for Continuous Integration (CI) builds to break is failing tests. When a build breaks, a developer often has to scroll through hundreds to thousands of log lines to find which test is failing and why. Finding the issue is a tedious process that relies on a developer's experience and increases the cost of software testing....conference paper 2022
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Brandt, C.E. (author), Zaidman, A.E. (author)Developer testing, the practice of software engineers programmatically checking that their own components behave as they expect, has become the norm in today's software projects. With the constantly growing size and complexity of software projects and with the rise of automated test generation tools, understanding a test case is becoming more...conference paper 2022
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Oosterbroek, W. (author), Brandt, C.E. (author), Zaidman, A.E. (author)Test amplification generates new tests by modifying existing, manually written tests.<br/>Up until now, this process preserves statements that were relevant for the original test case but are no longer needed for the behavior of the new test case.<br/>These unnecessary statements impact the readability of the tests in question.<br/>As a part of...conference paper 2021
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Nijkamp, N. (author), Brandt, C.E. (author), Zaidman, A.E. (author)Test amplification generates new test cases that improve the coverage of an existing test suite. To convince developers to integrate these new test cases into their test suite, it is crucial to convey the behavior and the improvement in coverage that the amplified test case provides. In this paper, we present NATIC, an approach to generate names...conference paper 2021
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van Mil, Frenk (author), Rastogi, A. (author), Zaidman, A.E. (author)Background: Personality plays a pivotal role in our understanding of human actions and behavior. Today, the applications of personality are widespread, built on the solutions from psychology to infer personality. Aim: In software engineering, for instance, one widely used solution to infer personality uses textual communication data. As studies...conference paper 2021
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Derakhshanfar, P. (author), Devroey, Xavier (author), Perrouin, Gilles (author), Zaidman, A.E. (author), van Deursen, A. (author)This is an extended abstract of the article: Pouria Derakhshanfar, Xavier Devroey, Gilles Perrouin, Andy Zaidman and Arie van Deursen. 2019. Search-based crash reproduction using behavioural model seeding. In: Software Testing, Verification and Reliability (May 2020). http://doi.org/10.1002/stvr.1733.conference paper 2021
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Alderliesten, Jan Willem Davis (author), Zaidman, A.E. (author)In order to help newcomers to open source projects identify tasks that are suitable to them and their level of expertise within the project, issues can get the good first issue label on the GitHub platform. In this paper we report on a preliminary investigation of good first issues in terms of how they effective they are for developer onboarding...conference paper 2021
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Derakhshanfar, P. (author), Devroey, Xavier (author), Zaidman, A.E. (author)Search-based techniques have been widely used for white-box test generation. Many of these approaches rely on the approach level and branch distance heuristics to guide the search process and generate test cases with high line and branch coverage. Despite the positive results achieved by these two heuristics, they only use the information...conference paper 2020
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Evers, B. (author), Derakhshanfar, P. (author), Devroey, Xavier (author), Zaidman, A.E. (author)Various search-based test generation techniques have been proposed to automate the generation of unit tests fulfilling different criteria (e.g., line coverage, branch coverage, mutation score, etc.). Despite several advances made over the years, search-based unit test generation still suffers from a lack of guidance due to the limited amount of...conference paper 2020
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Derakhshanfar, P. (author), Devroey, Xavier (author), Zaidman, A.E. (author), van Deursen, A. (author), Panichella, A. (author)Evolutionary-based crash reproduction techniques aid developers in their debugging practices by generating a test case that reproduces a crash given its stack trace. In these techniques, the search process is typically guided by a single search objective called Crash Distance. Previous studies have shown that current approaches could only...conference paper 2020
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Brandt, C.E. (author), Panichella, A. (author), Zaidman, A.E. (author), Beller, M.M. (author)Build logs are textual by-products that a software build process creates, often as part of its Continuous Integration (CI) pipeline. Build logs are a paramount source of information for developers when debugging into and understanding a build failure. Recently, attempts to partly automate this time-consuming, purely manual activity have come up,...conference paper 2020
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Derakhshanfar, P. (author), Devroey, Xavier (author), Panichella, A. (author), Zaidman, A.E. (author), van Deursen, A. (author)Approaches for automatic crash reproduction aim to generate test cases that reproduce crashes starting from the crash stack traces. These tests help developers during their debugging practices. One of the most promising techniques in this research field leverages search-based software testing techniques for generating crash reproducing test...conference paper 2020
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Derakhshanfar, P. (author), Devroey, Xavier (author), Zaidman, A.E. (author), van Deursen, A. (author), Panichella, A. (author)Writing a test case reproducing a reported software crash is a common practice to identify the root cause of an anomaly in the software under test. However, this task is usually labor-intensive and time-taking. Hence, evolutionary intelligence approaches have been successfully applied to assist developers during debugging by generating a test...conference paper 2020