Testing is a good example of a field that is ineffective if you don’t adopt this sort of adversarial approach. When I’m writing unit tests for something, as wel

Testing is a good example of a field that is ineffective if you don’t adopt this sort of adversarial approach. When I’m writing unit tests for something, as well as having some regular test cases of expected inputs and outputs, I’m always trying to find ways of breaking the code under test. This regularly surfaces problems that might otherwise have been overlooked and caused trouble (most commonly logic errors that can be a nightmare to diagnose if you don’t have a time-travelling debugger) later on.