Engineers and developers tend to be passionate about building something great, and Drupal is the ideal foundation.

In this presentation from DrupalCamp Atlanta 2015, I explain why testing is the best way to ensure sustainable quality in what you build. While Drupal already uses some great tools for this (simpletest, php code sniffer, php unit) I like to talk about another option: Behat, and the Behavior Driven Development paradigm that it encourages.