Description: Non-regression Testing is a set of procedures designed to ensure that recent modifications to a software’s code have not introduced errors in existing functionalities. This type of testing focuses on validating that previously implemented features continue to work as expected after changes, such as adding new functionalities, fixing bugs, or system updates. Non-regression tests are essential in test-driven development (TDD), where tests are created before writing the code, ensuring that each new line of code does not negatively affect already tested parts of the software. These tests can be manual or automated, and their implementation is crucial for maintaining software quality over time. By detecting issues before the software reaches production, the risks of system failures are minimized, and end-user satisfaction is improved. In summary, non-regression testing is a fundamental practice in the software development lifecycle, contributing to the stability and reliability of the final product.
