In this course, we’ll build a relatively simple Rails application, using behavior-driven development. Along the way, you’ll learn how to write Cucumber features and use them for acceptance testing, how to test-drive Rails views, controllers and models with the help of Rspec, and much more. You’ll learn a lot, so, if you’re ready, let’s get started!
More info:
https://tutsplus.com/course/bdd-rails-application/