It’s the one and only Slimey Worm from Sesame Street! When you write a new feature using a Test-Driven Development process you start out with a simple test, often creating an instance and calling a method on it: If you are strictly following TDD, you’ll try to write the simplest code that could pass the test, so your first code that passes the test might look like this. The code has no real logic, but it does pass the test, by just returning the expected value as a constant. This techniq...