Testing

I have to admit that I know too little about software testing in practice to be a well-rounded software developer. That does not mean that I am adverse to testing, on the contrary I think that many architecture focus on properties discernible by the end user and not the developers where testers are a key developer role.
So I am curios if there are any patterns on how to design a testable architecture.

I enjoy the blog thoughts from the test eye, which also has a blog roll if you want to explore further test blogs.
I also stumbled across a very good powerpoint summary about testing in industrial settings from Lappeenranta University of Technology.