Regression testing is a crucial part of the software development process that helps ensure the stability and reliability of a software application. It involves retesting a software application after changes have been made to it, to ensure that these changes have not introduced new defects or caused existing ones to resurface. But when exactly should you perform regression testing? Below, we will explore the key factors that influence the timing of regression automation testing in the software development lifecycle.

After Environment or Configuration Changes:
Sometimes, changes to the testing environment or configuration settings can impact the behavior of the software. Compatibility problems may arise, for instance, from modifications made to the web server, operating system, or database version. To ensure that the program continues to operate as intended in the modified environment or configuration, regression testing has to be done.

On a Regular Basis:
Regression testing should not be limited to specific milestones or events in the development process. Your development cycle should include regression testing regularly. The frequency of completion of this task might vary based on the project’s size and complexity, such as daily, weekly, or otherwise. Regular testing helps identify issues early and reduces the amount of labor required to fix them, resulting in a more dependable software product.

Before Major Releases:
Before releasing a new version of your software, it’s crucial to perform comprehensive regression testing. Before a significant release, regression testing helps ensure that the new version is free of regression issues that might negatively affect the user experience and harm your program’s reputation.

When Critical Bug Fixes Are Implemented:
If a critical bug is identified and fixed in the software, regression testing becomes paramount. Sometimes resolving one issue unintentionally creates additional ones. Regression testing that is concentrated on the parts of the code that are impacted by the bug patch will help to reduce this risk. This focused testing aids in verifying that regression flaws were not introduced by the repair.

After Automated Test Script Updates:
If your regression tests are automated, keep in mind that changes to the test scripts themselves can impact the validity of the tests. Regression tests must be performed again after updating or changing automated test scripts to confirm that the scripts correctly reflect the intended test cases and continue to yield dependable results.

Conclusion

Regression testing is an essential step in the software development process that shouldn’t be taken lightly. Maintaining software quality and avoiding regression flaws in your product need knowing when to conduct regression testing.

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