Regression Testing in Software Testing is a process used to ensure that recent changes or updates to a software application have not caused unintended issues or defects in previously working functionality. It verifies that existing features continue to work as expected after modifications are made to the software.
The primary purpose of Regression Testing is to maintain the stability and reliability of the software. It aims to identify and fix any regressions or unintended consequences introduced by new code changes, ensuring that the software performs consistently across different versions and updates.
Regression Testing works by re-running test cases that cover critical areas of the software affected by recent modifications. Testers systematically validate whether all previously functioning features still behave correctly and that no new bugs have been introduced. This can involve manual testing or automated tools to detect regressions efficiently.
Regression Testing provides several benefits:
In software development, Regression Testing is crucial for ensuring that changes to the software do not unintentionally disrupt existing functionality. By conducting regular Regression Testing, teams can mitigate risks, maintain software integrity, and deliver reliable software updates to users.