Adding Webrat, Cucumber and RSpec to a new Rails 3 project

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Problem

You would like to start using BDD in a new Ruby on Rails 3 application, and would like to install Webrat, Cucumber and RSpec to your project.

Solution

Follow the steps below (taken from the RSpec Book), for creating a new Rails 3 application and adding the necessary testing frameworks:

  1. Create your new ruby on rails application: rails new my_app
  2. Go to your new application directory: cd my_app
  3. Edit your Gemfile to include the following:
    group :development, :test do
    gem "rspec-rails", ">= 2.0.0"
    gem "cucumber-rails", ">= 0.3.2"
    gem "webrat", ">= 0.7.2"
    end
  4. Use bundler to install all the gems and dependencies: bundle install
  5. Install the rspec files: script/rails generate rspec:install
  6. Install the cucumber files: script/rails generate cucumber:install
  7. Run the following and you shouldn’t be seeing any errors:
    rake db:migrate
    rake db:test:prepare
    rake spec
    rake cucumber