Rails 的阿喀琉斯之踵在于没有合适的方法来测试您的 RJS。随着展示行为的日益复杂，无法测试它变成了一个真实的问题。现在好了。

凯文·克拉克 发布了 ARTS，一种用于测试 RJS 的机制。它的 API 简单而灵活。一个单一的入口点可让您测试您能生成的相当数量的 RJS。以下是可操作的一些想法

  assert_rjs :alert, 'Hi!'                                                     
  assert_rjs :assign, 'a', '2'                                                 
  assert_rjs :call, 'foo', 'bar', 'baz'                                        
  assert_rjs :draggable, 'draggable_item'                                      
  assert_rjs :drop_receiving, 'receiving_item'                                 
  assert_rjs :hide, "post_1", "post_2", "post_3"                               
  assert_rjs :insert_html, :bottom, 'posts'                                    
  assert_rjs :redirect_to, :action => 'list'                                   
  assert_rjs :remove, "post_1", "post_2", "post_3"                             
  assert_rjs :replace, 'completely_replaced_div', '<p>This replaced the        
div</p>'                                                                       
  assert_rjs :replace_html, 'replaceable_div', "This goes inside the           
div"                                                                           
  assert_rjs :show, "post_1", "post_2", "post_3"                               
  assert_rjs :sortable, 'sortable_item'                                        
  assert_rjs :toggle, "post_1", "post_2", "post_3"                             
  assert_rjs :visual_effect, :highlight, "posts", :duration => '1.0'           

他撰写了一份 详尽的教程，助您开始使用。