Let's write yet another FizzBuzz because that's what the world needs. Here's the twist though: ours won't be like those other fuddy-duddy lame and bloated enterprise-grade FizzBuzzes. Oh no, we are ahead of the curve this time, it's functional time, baby! We will be using Python though, because Python and Javascript is the closest most of us will ever get to using a functional programming language in production.
Let's write a ring buffer in Python! OK, that's not particularly exciting. Let's use test-drivent development, that should make things a bit more interesting. In this blog post I will go over the individual steps and my train of thought, because TDD requires a certain discipline and mindset. Why a ring buffer? A ring buffer is not quite trivial to implement because it has a couple of edge cases, but at the same time it is not hard to implement either. This is a post to follow along at home, so grab your text editor and let's get going.