Following the hallowed US American tradition of declaring war on whatever things you don't like, I've decided to declare war on legacy code this week.

By legacy code, I mostly mean untested code, following the definition of Michael Feathers' book Working with Legacy Code. That's a great read, by the …

I've just fixed a bug in a web app that I'm working on with a couple of colleagues, a bug that is a great example of a hard to find, easy to fix bug that could have been avoided by some defensive programming.

I thought I'd share this titbit to …