Exploring presenter first technique by implementing contact management tool from the following article: https://kxcdn.atomicobject.com/uploads/archive/files/BigComplexTested_Feb07.pdf
More on presenter first: https://atomicobject.com/resources/presenter-first
Don't miss the paper: https://atomicobject.com/uploads/archive/files/PF_March2005.pdf
Just run the specs: