Unit Testing and test driven mentality

During the last few years I've started to attend the London Yii Meetup and as we are using Yii quite extensibly at work, we're also trying to do as much TDD as possible.

I'm presenting here the slides that accompanied the talk I've given in June 2013.
I will also try to dig into some of the fears that some developers have while approaching Unit Testing and TDD.

How Yii virtual attributes work

In this article I'd like to share some technical insights of a very useful aspect of Yii models: virtual attributes, how to use them correctly and avoid possible problems and headaches.

Although the actual content of the article is definitely targeted towards Yii developers, I'll try to link as much as possible to additional resources for anyone can actually explore the content a little bit more.