paths.rb

# features/support/paths.rb
module NavigationHelpers
  # Maps a name to a path. Used by the
  #
  #   When /^I go to (.+)$/ do |page_name|
  #
  # step definition
  #
  def path_to(page_name)
    case page_name

    when /^the home\s?page$/
      '/'

    # Add more mappings here.
    # Here is an example that pulls values out of the Regexp:
    #
    #   when /^(.*)'s profile page$/i
    #     user_profile_path(User.find_by_login($1))

    else
      begin
        page_name =~ /^the (.*) page$/
        path_components = $1.split(/\s+/)
        self.send(path_components.push('path').join('_').to_sym)
      rescue NoMethodError, ArgumentError
        raise "Can't find mapping from \"#{page_name}\" to a path.\n" +
          "Now, go and add a mapping in #{__FILE__}"
      end
    end
  end
end

World(NavigationHelpers)

selectors.rb

# features/support/selectors.rb
module HtmlSelectorsHelpers
  # Maps a name to a selector. Used primarily by the
  #
  #   When /^(.+) within (.+)$/ do |step, scope|
  #
  # step definitions
  #
  def selector_for(locator)
    case locator

    when "the page"
      "html > body"

    # Add more mappings here.
    # Here is an example that pulls values out of the Regexp:
    #
    #  when /^the (notice|error|info) flash$/
    #    ".flash.#{$1}"

    # You can also return an array to use a different selector
    # type, like:
    #
    #  when /the header/
    #    [:xpath, "//header"]

    # This allows you to provide a quoted selector as the scope
    # for "within" steps as was previously the default for the
    # web steps:
    when /^"(.+)"$/
      $1

    else
      raise "Can't find mapping from \"#{locator}\" to a selector.\n" +
        "Now, go and add a mapping in #{__FILE__}"
    end
  end
end

World(HtmlSelectorsHelpers)

web_steps.rb

# features/step_definitions/web_steps.rb
require 'cucumber/websteps'