Open source projects that demonstrate TDD and SOLID priciples [closed]

Question

I asked a similar question before, and got some good answers, but I think it was too general.

Examples of great software design and implementation

Does anyone know of any open-source projects that demonstrate really good TDD practices, and SOLID principles? TDD and SOLID are widely publicized, but I've never seen it really done myself, I'd just like to get an idea of what it might look like in a project (large or small)?

Answer 1

FitNesse. This is about 50K lines of Java code. It was build with TDD, and has about 90% code coverage (probably higher). There is a strong use of SOLID principles throughout.

I'm sure you can find some parts you don't like. I often do. But overall the system is very robust. We have thousands of users, and a very small buglist. We make frequent releases, and the sole QA test is: ant testbuild. If the tests pass, we ship it.