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- Ahmad, Azeem, et al.
(author)
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Identifying Randomness related Flaky Tests through Divergence and Execution Tracing
- 2022
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In: 2022 IEEE 15TH INTERNATIONAL CONFERENCE ON SOFTWARE TESTING, VERIFICATION AND VALIDATION WORKSHOPS (ICSTW 2022). - : IEEE COMPUTER SOC. - 9781665496285 ; , s. 293-300
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Conference paper (peer-reviewed)abstract
- Developers often spend time to determine whether test case failures are real failures or flaky. The flaky tests, known as non-deterministic tests, change their outcomes without any changes in the codebase, thus reducing the trust of developers during a software release as well as in the quality of a product. While rerunning test cases is a common approach, it is resource intensive, unreliable, and does not uncover the actual cause of test flakiness. Our paper evaluates an approach to identify randomness-related flaky. This paper used a divergence algorithm and execution tracing techniques to identify flaky tests, which resulted in the FLAKYPY prototype. In addition, this paper discusses the cases where FLAKYPY successfully identified the flaky test as well as those cases where FLAKYPY failed. The papers discuss how the reporting mechanism of FLAKYPY can help developers in identifying the root cause of randomness-related test flakiness. Thirty-two open-source projects were used in this. We concluded that FLAKYPY can detect most of the randomness-related test flakiness. In addition, the reporting mechanism of FLAKYPY reveals sufficient information about possible root causes of test flakiness.
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| 3. |
- Salari, Mikael Ebrahimi, et al.
(author)
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Choosing a Test Automation Framework for Programmable Logic Controllers in CODESYS Development Environment
- 2022
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In: Proceedings - 2022 IEEE 14th International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2022. - : Institute of Electrical and Electronics Engineers Inc.. - 9781665496285 ; , s. 277-284
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Conference paper (peer-reviewed)abstract
- Programmable Logic Controllers are computer devices often used in industrial control systems as primary components that provide operational control and monitoring. The software running on these controllers is usually programmed in an Integrated Development Environment using a graphical or textual language defined in the IEC 61131-3 standard. Although traditionally, engineers have tested programmable logic controllers' software manually, test automation is being adopted during development in various compliant development environments. However, recent studies indicate that choosing a suitable test automation framework is not trivial and hinders industrial applicability. In this paper, we tackle the problem of choosing a test automation framework for testing programmable logic controllers, by focusing on the COntroller DEvelopment SYStem (CODESYS) development environment. CODESYS is deemed popular for device-independent programming according to IEC 61131-3. We explore the CODESYS-supported test automation frameworks through a grey literature review and identify the essential criteria for choosing such a test automation framework. We validate these criteria with an industry practitioner and compare the resulting test automation frameworks in an industrial case study. Next, we summarize the steps for selecting a test automation framework and the identification of 29 different criteria for test automation framework evaluation. This study shows that CODESYS Test Manager and CoUnit are mentioned the most in the grey literature review results. The industrial case study aims to increase the know-how in automated testing of programmable logic controllers and help other researchers and practitioners identify the right framework for test automation in an industrial context.
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