如何测试Rails 4.x中不存在路由(How to test that a route does not exist in Rails 4.x)

 如果我有一个未定义的路由，我该如何测试它返回404？ 
 
 这是routes.rb的相关部分 
 
resources :reservations, only: [:index,:create,:destroy]
 
 您可以创建，销毁和列出预订，但不能更改它们。 
 
 那么测试是： 
 
patch :update, id: @reservation, reservation: { somefield: "data" }
assert_response :missing
 
 这应该通过，因为缺少路由应返回404.相反，我得到一个UrlGenerationError： 
 
ActionController::UrlGenerationError: No route matches {:action=>"update", :controller=>"reservations", :id=>"980190962", :reservation=>{:somefield=>"data"}}
 
 我知道了; 来自测试的patch调用无法生成URL。 那么如何测试这样的URL调用会产生404？ 

If I have a route not defined, how do I test that it returns a 404?
 
Here is the relevant part of routes.rb
 
resources :reservations, only: [:index,:create,:destroy]
 
You can create, destroy and list reservations, but not change them.
 
The test then is:
 
patch :update, id: @reservation, reservation: { somefield: "data" }
assert_response :missing
 
This should pass, since the lack of a route should return a 404. Instead, I get a UrlGenerationError:
 
ActionController::UrlGenerationError: No route matches {:action=>"update", :controller=>"reservations", :id=>"980190962", :reservation=>{:somefield=>"data"}}
 
I get it; the patch call from the test cannot generate a URL. So how do I test that such a URL call would generate a 404?

原文：https://stackoverflow.com/questions/30262023