Description: Patch validation testing is a set of procedures designed to ensure that patches applied to software function correctly and do not introduce new errors. These tests are essential in the software development lifecycle, as they verify that bug fixes, performance improvements, or new features implemented through patches do not negatively affect the existing system. Patch validation testing is typically performed after a patch has been applied and may include functional testing, regression testing, and performance testing. Automating these tests is particularly valuable, as it allows for rapid and repetitive execution of a test suite, ensuring that each patch is validated efficiently. This is crucial in agile development environments, where patches are applied frequently and software quality must remain high. Additionally, automation helps reduce the time and effort required for manual testing, allowing development teams to focus on more strategic tasks. In summary, patch validation testing is a fundamental practice in automated testing, ensuring that software remains stable and functional after updates are applied.