Unit tests are the de-facto way to validate the code we write. But do you know how good are your unit tests? How much coverage do you have? Do you have tests for all possible scenarios? What if I say with a simple maven plugin you can validate and put a coverage percentage to your unit tests. In this 16 minutes let me take you on a quick journey on pi-test/mutation test and show you how you can easily achieve this on your build pipeline.