30 Days of TDD: Day Five – Make Your Code SOLID

In the previous two posts we started our practice of TDD with a simple example of a requirement, a couple of test cases and tests to match. We implemented the code necessary to make those tests pass. Along the way we discussed some of the tools we’ll be using going forward, including NUnit and JustCode. In this post I’ll be discussing the SOLID principals and how they can help with your practice of TDD and help you write better software in general.