Testing Metrics – Normal Ratio of Functional Lines of Code to Test Lines of Code

It's perfectly legit. Red, Green, Refactor.

The first test passes.

Add the second test, with a new input.

Now quickly get to green, you could add an if-else, which works fine. It passes, but you are not done yet.

The third part of Red, Green, Refactor is the most important. Refactor to remove duplication. You WILL have duplication in your code now. Two statements returning integers. And the only way to remove that duplication is to code the function correctly.

I'm not saying don't write it correctly the first time. I'm just saying it's not cheating if you don't.

TDD isn't about testing, it's about design. Writing the tests forces you to think about how the class is supposed to work and what kind of interface you need. The tests are a happy side effect that makes it easier to refactor later.

So, with that in mind, what is the behavior of a static page and what is the interface?

My first response would be "none" and "none".