| Module | ActionController::Assertions::DomAssertions | 
| In: | lib/action_controller/assertions/dom_assertions.rb | 
Test two HTML strings for equivalency (e.g., identical up to reordering of attributes)
  # assert that the referenced method generates the appropriate HTML string
  assert_dom_equal '<a href="http://www.example.com">Apples</a>', link_to("Apples", "http://www.example.com")