Understanding the Red, Green, Refactor Cycle

Originally published at: https://froware.com/2019/03/29/understanding-the-red-green-refactor-cycle/

This week, I have continued creating a human vs. human Tic Tac Toe game in Ruby, using Test Driven Development. I have also been trying to get familiar with a number of principles and rules, such as SOLID principles and the Four Rules of Simple Design.