Untested code.. even if you're writing a kernel, you've got to find a way to mock/stub/double/fake your way into unit testing, smoke testing and integration tes

Untested code.. even if you're writing a kernel, you've got to find a way to mock/stub/double/fake your way into unit testing, smoke testing and integration testing. Cucumber isn't a requirement, but having appropriate layers of assuring production code is correct is fundamental to sustainable software engineering.