What is Regression Testing?
Regression testing is a type of software testing that ensures that recent code changes have not adversely affected existing functionalities. It is a crucial part of the software development lifecycle, primarily performed after modifications to the code, such as enhancements, bug fixes, or new features, are implemented.
The primary goal of regression testing is to detect any unintended side effects that could arise from changes made to the software. By re-running previously conducted tests, teams can confirm that the application still operates as expected.
Regression tests can be manual or automated. Automated tests are particularly advantageous, as they allow for quicker validation of software integrity and can be executed frequently throughout the development process. This ensures that issues can be identified and addressed sooner, reducing time and costs associated with later-stage fixes.
In terms of practices, regression testing can be categorized as a part of several methodologies including Agile and DevOps. Given the rapid pace of software development, maintaining a robust regression testing suite is essential for delivering high-quality software, ensuring that ongoing changes enhance rather than disrupt the user experience.