Giordano Scalzo's Personal Blog

I really do like Rspec and so do Cucumber, but, often, I don’t like switch between them during my develompment.
Today I stumbled upon ‘Gibbon‘ a clever hack by Stephen Caudill, of tomatoi.st fame,
that add support for GIVEN/WHEN/THEN templates.

It simple needs to add this file into your spec/support directory:

module Spec::DSL::Main
  alias :Feature :describe
  def Story(description)
    @description_args.push("\n#{description}\n")
  end
end

module Spec::Example::ExampleGroupMethods
  def executes(scope=:all, &blk)
    before(scope, &blk)
  end

  def Scenario(description, &blk)
    describe("Scenario:  #{description}", &blk)
  end

  def Background(description, &blk)
    describe("Background #{description}", &blk)
  end

  def Given(description, &blk)
    describe("Given #{description}", &blk)
  end

  def When(description, &blk)
    describe("When #{description}", &blk)
  end

  def Then(description, &blk)
    example("Then #{description}", &blk)
  end

  def And(description, &blk)
    example("And #{description}", &blk)
  end

  def But(description, &blk)
    example("But #{description}", &blk)
  end
end

and it’ll be possible write specs like that:

  Feature "A Tomatoist does a pomodoro" do
    Story <<-eos
    In order to perform a focused unit of work
    As a Tomatoist
    I want to start a pomodoro
    eos

    Scenario "Starting a pomodoro" do
      When "I go to the home page" do
        executes { visit '/' }

        Then "I should be sent to a new session" do
          current_url.should =~ /\/\w{3,}/
        end

        And "I should see an unstarted timer" do
          response.should have_tag('#timer .countdown_row','00:00')
        end

        And "I should see a pomdoro button" do
          response.should have_tag('input[type=submit][value=?]','Pomdoro')
        end

        When "I click the pomodoro button" do
          executes do
            @session_url = current_url
            click_button 'Pomodoro'
          end

          Then "I should be on my session's page" do
            current_url.should == @session_url
          end

          And "my timers should have been initialized" do
            response.should have_tag('#timer .countdown_row','25:00')
          end

          And "my timer history should show the current pomdoro" do
            response.should have_tag('#history ul li', /Pomodoro/, 1)
          end

          And "the pomodoro button should be highlighted" do
            response.should have_tag('form.current input[type=submit][value=?]','Pomdoro')
          end
        end
      end
    end
  end
  

Neat hack, indeed!

I'll try it as soon as possible.

Technorati Tags: bdd, ruby

Tags: bdd, ruby