The amount of code paths that even simply code can traverse can become vastly large quickly. Negative testing is often like shooting in the dark. Negative test

The amount of code paths that even simply code can traverse can become vastly large quickly. Negative testing is often like shooting in the dark. Negative tests from what I've seen accrue by encountering unexpected results from code in the wild and writing tests to make sure they are handled. They are a result of code being used, not by proactive or predictive design.