Handling cookies in Capybara with Rack::Test so that controllers see them

gistfile1.txt

  def set_cookie(key, value)
    # This is how one needs to set cookies in Rack::Test.
    jar.merge "#{key.to_s}=#{value};domain=#{domain};path=/"
  end

  def get_cookie(key)
    jar[key.to_s]
  end

  def jar
    # Sorry Selenium!
    driver = Capybara.current_session.driver
    driver.class.should == Capybara::RackTest::Driver

    @jar ||= driver.browser.rack_mock_session.cookie_jar
  end
  
  def domain
    @domain ||= current_host.sub /\A (?:https?:\/\/)? (.*) (?::\d+)? \z/x, '\\1'
  end