This is are the slides of a presentation that I gave at the Ruby Meetup Monterrey, the last year.

The slides have some information about XP (Extreme programming) and the term “test first”, and some of the problems that it tries to fight. Like scope creep, coupling and cohesion, trust and rhythm.

In the slides I also explain with some examples what I understand about the “Magic Tricks of Testing by Sandi Metz”. And I also give some advices to some ways to start writing fast tests in the app that you are working on.

I hope you find it useful.