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Test-driven development (TDD) is a programming technique that reverses the usual sequence of coding and testing. By writing tests just in advance of the code needed to satisfy them, programmers: * Work with confidence * Work on a series of achievable steps instead of tackling a big problem all at once * Ensure that software design meets the need of the actual code * Leave behind a suite of tests to help preserve the integrity of the code Watch this screencast

RSpec gives us many powerful tools to make our tests readable. Matchers allow us to provide custom predicates to our should statements that succinctly define the behavior of our code. Watch this screencast

Shoulda is a framework that sits on top of Test::Unit and adds a ton of nice features like macro's, nested context, and the ability to create custom tests in a block-based DSL. Watch this screencast

A/B Testing (or Split Testing) is a way to experiment with variations in an application to see the most effective option. Watch this screencast

The Cucumber behavior-driven development framework is appreciated by developers from many languages. It makes it easy to write plain-text stories that run executable Ruby code against your application. In this hour and ten minute screencast, you’ll learn the basics of Cucumber. You’ll learn the syntax, organization, and philosophy of writing... Watch this screencast

For our first in the series of ’same kata, multiple languages,’ we have a treat for everyone, Gabriele Lana is doing it in Erlang. Gabriele Lana is a software journeyman living in Milan (Italy). Since 1998 he works as a developer and consultant. In 2000 he started using Agile practices in real time and embedded industries, proving their effectiveness [...] Watch this screencast

Here, at long last, is a recording of the Prime Factors Kata in Ruby, done to the tune of the Flower Duet from Lakme’.  This version is much more polished than previous versions, though is still not perfect.  It will take many more weeks of practice to perfect. Many things have changed since the last version.  [...] Watch this screencast

With Rspec and Cucumber, Ruby has brought testing to a whole new level, but tests still require a lot of work. But things just got better. Llewellyn Falco will show you new patterns and practices to dramatically decrease the amount of effort needed to test. Bonus content: download the slides from this talk. Watch this screencast

Sometimes bad code slips into production and triggers a 500 error. Learn how to be notified of this and resolve it through integration tests. Watch this screencast

Il Test-Driven Development (TDD) si è affermato negli ultimi anni come una delle novità più interessanti emerse in seno alla comunità di Extreme Programming (XP). Il TDD costituisce una tecnica di sviluppo molto efficace, ma richiede anche molta pratica per essere padroneggiata appieno. In questo corso il Coach XP, Piergiuliano... Watch this screencast