What is Regression Testing?
Regression testing is a type of software testing that ensures changes to the software, such as enhancements or bug fixes, do not adversely affect the existing functionality. It is an essential part of the software testing lifecycle, particularly within the context of Functional Testing.
The primary goal of regression testing is to catch any unintended side effects that might occur when new code is integrated into the existing codebase. It involves re-running previously completed tests to verify that the application still performs as expected. This testing is particularly crucial after code changes, including new features, updates, or refactoring processes.
Regression tests can be manual or automated. Automated regression testing is often preferred for its efficiency, enabling faster feedback on the software's stability. Continuous integration and delivery practices frequently incorporate automated regression testing to ensure ongoing quality throughout the software development lifecycle.
In conclusion, regression testing serves as a safeguard in software development, helping teams to deliver reliable, high-quality applications. By ensuring that newly introduced changes do not disrupt existing functionality, regression testing fosters confidence in the release process, ultimately enhancing user satisfaction and trust in the product.