1. The four Ws of BDD
1.1. What ?
BDD (Behaviour-Driven Development) is a concept in which acceptance tests are written as examples that anyone on the team can understand. The process of writing those examples is a collaborative effort of the developers, testers, and the business owner (“los tres amigos”). They decide together if the thing they set out to be built is the right one, before starting implementing it. In doing so, a deliberate effort to develop a shared, ubiquitous language (used and understood by everyone involved in the project) for talking about the system is created.
BDD scenarios are built around…