Given When Then for Capybara DSL

GivenWhenThen.rb

# Throw this into your spec/support directory
# Usage:
# 
# feature 'Dashboard' do
#   scenario 'all' do
#     Given 'I am an authenticated user' do
#       authenticate_user
#     end
#     And 'there are assignments' do
#       create(:assignment)
#     end
#     When  'I visit the dashboard' do
#       get dashboard_path
#     end
#     Then  'I should see my assignments' do
#       current_user.assignments.each do |assignment|
#         page.body.should include(assignment.title)
#       end
#     end
#   end
#

def AcceptanceCondition(description = '', &block)
  example.metadata[:description] << "\n\s\s\s\s#{description}" if description.to_s.strip.size > 0
  if block_given?
    yield
  else
    pending 'This step has not be written yet'
  end
end

def Given(description = '', &block)
  AcceptanceCondition("Given #{description}", &block)
end

def When(description = '', &block)
  AcceptanceCondition("When #{description}", &block)
end

def Then(description = '', &block)
  AcceptanceCondition("Then #{description}", &block)
end

def And(description = '', &block)
  AcceptanceCondition("And #{description}", &block)
end

def But(description = '', &block)
  AcceptanceCondition("But #{description}", &block)
end