twitter_home_page.rb

class TwitterHomePage
  PAGE_URL = "http://www.twitter.com"
  def initialize(world)
    @world = world
    @browser = $selenium_helper.browser
  end

  def visit
    @browser.open PAGE_URL
    @browser.wait_for_page_to_load
    @browser.title.should == "Twitter"
  end

  def has_popular_topics?
    @browser.element? POP_TOPICS_LOCATOR
  end

  def most_popular_topic
    @browser.text FIRST_POP_TOPIC_LOCATOR
  end

  def search(topic)
    @browser.type SEARCH_BOX_LOCATOR, topic
    @browser.click SEARCH_BUTTON_LOCATOR
    @browser.wait_for_element RESULTS_HEADING_LOCATOR
  end

  private

  POP_TOPICS_LOCATOR = %Q{//div[@id = "trends"]//div[@class = "current"]}
  FIRST_POP_TOPIC_LOCATOR = "#{POP_TOPICS_LOCATOR}/ul/li[1]/a"
  SEARCH_BOX_LOCATOR = %Q{//input[@id="home_search_q"]}
  SEARCH_BUTTON_LOCATOR = %Q{//a[@id="home_search_submit"]}
  RESULTS_HEADING_LOCATOR = %Q{//div[@id="content"]/h2[@id="timeline_heading"]}
end

twitter_results_page.rb

class TwitterResultsPage
  def initialize(world)
    @world = world
    @browser = $selenium_helper.browser
  end

  def tweets
    # ajax results, give them a chance to load
    @browser.wait_for_element(TIMELINE_LOCATOR)
    result_count = @browser.get_xpath_count(TIMELINE_LOCATOR).to_i
    
    (1..result_count).collect do |count|
      {
        :author => @browser.get_text(tweet_author_locator(count)),
        :tweet => @browser.get_text(tweet_text_locator(count))
      }
    end
  end

  def wait_for_more_results(timeout_secs)
    @browser.wait_for_element(MORE_RESULTS_LOCATOR,{:timeout_in_secs => timeout_secs})
  end

  private

  def tweet_author_locator(count)
    %Q{#{tweet_locator(count)}//a[contains(@class, "screen-name")]}
  end

  def tweet_text_locator(count)
    %Q{#{tweet_locator(count)}//span[contains(@class, "msgtxt")]}
  end

  def tweet_locator(count)
    %Q{#{TIMELINE_LOCATOR}[#{count}]}
  end

  TIMELINE_LOCATOR = %Q{//ol[@id="timeline"]/li}
  MORE_RESULTS_LOCATOR = %Q{//div[@id="new_results_notification"]/a[@id="results_update" and not(contains(@style, "display: none"))]}
end