Outside-In development with Double Loop TDD

In my last post, I started talking about London School TDD, and the two features of it that I think distinguish it from Classic TDD. The first was Outside-In development with Double Loop TDD, which I’d like to talk more about in this post. The second was...

Principles of Agile Test Automation

Please note – As of March 2013, I have rewritten this post in the light of further experience and discussions. The updated post is available here. I feel like I’ve spent most of my career learning how to write good automated tests in an agile environment....

What is Text-Based Testing?

Programmers have a vested interest in making sure the software they create does what they think it does. When I’m coding I prefer to work in the context of feedback from automated tests, that help me to keep track of what works and how far I’ve got....