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The Essential Guide to Regression Testing in Software Development

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Regression testing is a crucial component of software testing. It guarantees that code modifications have no effect on previously functional features. Regression testing becomes more crucial as regression testing in software testing guarantees quality. We will go over every important aspect of regression testing in this blog.  

What is Regression Testing?

The practice of assessing existing software applications to make sure that functional characteristics are unaffected by code changes is known as regression testing. To ensure that there haven’t been any unanticipated effects from recent code revisions, this is done. In order to verify that software that has not been updated continues to operate as intended, regression tests are repeats of previous, successful tests. It is confident that code changes will only impact the intended functionality thanks to this testing.    

When is Regression Testing Performed?

Regression testing is carried out subsequent to program improvements, bug repairs, or configuration modifications. It’s done on a regular basis during the life cycle of software development. After significant functional improvements or code modifications, thorough regression testing is carried out. Both acceptability testing and unit testing may be carried out at this level. Regression testing is helpful when transferring software to several platforms or settings. It increases assurance that functionalities have not been impacted by modifications.  

Scope of Regression Testing

The scope of regression testing can be extensive for large enterprise applications. All key workflows, use cases, and business scenarios need to be re-tested. Critical functionality and integration points need to be priorities. Since exhaustive regression testing can be time-consuming, test automation is used to rerun automated test scripts. Testers need to analyze impact of code changes and define the scope smartly based on risk.

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Importance of Test Automation

Automating repetitive regression test cases is vital for efficiency. Scripts can be scheduled to run automatically whenever code changes are made. Test automation significantly reduces the time and effort for regression testing. It also enables a wider test coverage of application modules. When test scripts are automated early in the development cycle, they become reusable assets that improve quality. Effective test automation is a key enabler of successful regression testing.

Challenges in Regression Testing

While regression testing is simple in concept, executing it well can be challenging. Repeating all tests with every code change is not practical. Determining what to test and optimizing cycles is key. Lack of automated tests, complex integrations, multiple environments, incomplete requirements, traceability and time pressures make regression testing difficult. Maintaining a living document of all functionality tested is crucial. Teams should anticipate challenges and budget time for rigorous regression testing.

Conclusion

Thorough regression testing is one of the most important software testing activities to keep pace with evolving applications. Opkey, an AI-powered no-code automation platform, streamlines regression testing by transforming manual tests into automated scripts with one click. Its repository of 30,000+ pre-built test cases boost coverage. Change impact analysis prioritizes tests to run. Self-healing fixes broken tests automatically. End-to-end testing ensures integrations and customizations work after each change. Companies like Just Group have cut cycle times 68% and achieved optimal coverage with Opkey. 

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