Background & Motivation

Negative tests are a crucial part of application testing – they ensure us the application contains "bad" user behavior and illegal inputs in a controlled fashion. Having said that, usually there’s never enough time, resources and personal to automate the "positive" tests; let alone the negative ones. This is not an inevitable situation – if we’ll write our positive tests in a generic and sophisticated manner, extending them into a set of negative tests will be fairly easy, and will require only minimal effort and resources.