[choward]

> With this setup, test coverage will be at 100% even though we did not test the case where the toaster is not plugged because it is too simple. Writing a test for this "functionality" would not be worth it. Therefore we explicitly exclude it from coverage. You should revisit this decision if it becomes more complex and needs to be tested.

This is ridiculous. He writes unreachable code and says he doesn't test it because it's "too simple". No, you're not testing it because you can't test it, because it's code that will NEVER run. Instead of deleting the pointless code he marks it as not needing test coverage.