Использование helpers в Cucumber

# step_definitions/general_steps.rb
Then /^he should see an error message "(.+)"$/ do |text|
  within(error_message) do
    page.should have_content(text)
  end
end

# support/general_helpers.rb
module GeneralHelpers
  def error_message
    page.first('div.alert.alert-error')
  end
end

World(GeneralHelpers)