使用Flash事件系统或构建自己的观察者设计模式？(Use Flash Event System or build own Observer Design Pattern?)

 您的测试中有几个问题 
 
 第一个是在每个场景之前运行前块，并且当第二个场景运行时，创建的对象的id可能是2（除非先前的场景创建了更多的位置然后它会更高），等等。为了解决这个问题，你要解决这个问题。应该保存您正在创建的对象，然后使用其id生成要访问的路径 
 
before do
  @place = create(:place, :reviewed)
end
 
 然后当你需要访问它 
 
visit("/places/#{@place.id}/edit") 
 
 或使用路线助手 
 
visit(edit_place_path(@place))  # preferred unless you're actually testing the text used for the url
 
 第二个问题是，在访问新位置之前，您不是在等click_on完成它正在做的任何事情。 使用支持JS的驱动程序时，无法保证当这些操作返回时，浏览器点击/交互触发的操作已完成。 您需要在访问新位置之前检查指示操作已完成的可见更改，否则新访问可以在完成之前取消触发或处理的操作。 
 
click_on('Update Place')
page.must_have_content('Place Updated') #whatever message is displayed
visit '/places'

You have a couple of issues in your tests
 
The first is that the before block is run before each scenario, and when the second scenario is run the id of the object created is probably 2 (unless the previous scenario created more places then it would be higher), etc. To solve this you should be saving the object you're creating and then using its id to generate the path to visit
 
before do
  @place = create(:place, :reviewed)
end
 
then when you need to visit it
 
visit("/places/#{@place.id}/edit") 
 
or using the route helpers
 
visit(edit_place_path(@place))  # preferred unless you're actually testing the text used for the url
 
The second issue is that you're not waiting for click_on to complete whatever it's doing before visiting a new location. When using JS capable drivers there is no guarantee that actions triggered by browser clicks/interactions have completed when those actions return. You need to check for visible changes that indicate the actions are complete before visiting a new location or the new visit can cancel the action triggered or get processed before it completes.
 
click_on('Update Place')
page.must_have_content('Place Updated') #whatever message is displayed
visit '/places'