The primary advantage to this practice is that it requires far less time and effort to perform. Regression Test Selection: As a slightly toned-down alternative to retest all, regression test selection encourages the team to extract a representative selection of tests from the full test suite that will approximate the average test case of the entire testing suite as a whole.However, this lack of human intervention can also be problematic, so it’s critical to have a backup plan like an error monitoring tool, which will ensure anything that slips through the cracks is caught and dealt with. In most cases, the majority of testing is actually automated using assorted tools and test-driven development practices, since it’s neither feasible nor economical for humans to perform such a massive quantity of testing. Retest All: A retest all practice, as the name implies, aims to re-test the entire software suite.Regression testing simply confirms that modified software hasn’t unintentionally changed and it is typically performed using any combination of the following techniques: Let’s get to it! What is Regression Testing?
Throughout this article we’ll further examine what regression testing is and provide a handful of useful tips for how to properly implement regression testing into your team’s software development life cycles. Regression testing is ideally performed every time a software component or feature is modified, to help identify (and resolve) any newly discovered or regressed issues. The term regression actually means “the act of reverting back to a previous state.” By extrapolating that definition into the realm of software development we can infer that regression testing is performed to verify that software has not unintentionally regressed to a previous state. Regression testing is a form of software testing that confirms or denies a software’s functionality after the software undergoes changes.