Example Behat feature for testing element existence

Homepage.feature

Feature: Home Page Tests
  As an anonymous user 
  I should see a set of tabs that display the conference sponsors
  I should see a large rotating banner
  I should see the home page video
  I should be able to click the Register Now Button

  @javascript @api
  Scenario: Checking that important elements have rendered
    Given I am not logged in
    When I visit "/"
    Then the element "div[id=views_slideshow_cycle_main_sliding_banners-sliding_banner]" should exist
    Then the element "div[id=tabset]" should exist
    Then the element "a[class=speaker]" should exist
    Then "div[id=register-block]" should be visible
    Then the element "div[id=mediafront_nodeplayer_default]" should exist

    When I click "Register Now for 2014"
    Then the response should contain "Brushfire"
    Then print current URL