在Rails 3上嵌套路線的功能測試

Question

我有一個帶有以下嵌套路由的Rails 3應用程序：

resources :games do
  collection do
    get :all
    get :unassigned
  end
  resources :messages
  resources :comments
end

一個游戲有很多注釋，一個游戲也有很多消息。

我期望“ / games / 1 / comments”路由到comments控制器上的index操作，並在params哈希中設置:game_id => 1 。

在應用程序中一切正常。 但是，我的路線測試失敗了，我不知道為什么。

當我嘗試這個：

assert_routing({:path => "/games/1/messages", :method => :get},
  { :controller => "messages", :action => "index", :game_id => 1})

我得到這個：

  2) Failure:
test_route_one(MessagesControllerTest)
    [actionpack (3.0.3) lib/action_dispatch/testing/assertions/routing.rb:52:in `assert_recognizes'
     actionpack (3.0.3) lib/action_dispatch/testing/assertions/routing.rb:120:in `assert_routing'
     test/functional/messages_controller_test.rb:106:in `test_route_one'
     activesupport (3.0.3) lib/active_support/testing/setup_and_teardown.rb:67:in `__send__'
     activesupport (3.0.3) lib/active_support/testing/setup_and_teardown.rb:67:in `run'
     activesupport (3.0.3) lib/active_support/callbacks.rb:438:in `_run_setup_callbacks'
     activesupport (3.0.3) lib/active_support/testing/setup_and_teardown.rb:65:in `run']:
The recognized options <{"action"=>"index", "game_id"=>"1", "controller"=>"messages"}> 
did not match <{"action"=>"index", "game_id"=>1, "controller"=>"messages"}>, 
difference: <{"game_id"=>1}>

當我嘗試這樣做時（請注意:game_id上的引號）：

assert_routing({:path => "/games/1/messages", :method => :get},
  { :controller => "messages", :action => "index", :game_id => "1"})

我得到這個：

  3) Failure:
test_route_two(MessagesControllerTest)
    [actionpack (3.0.3) lib/action_dispatch/testing/assertions/routing.rb:90:in `assert_generates'
     actionpack (3.0.3) lib/action_dispatch/testing/assertions/routing.rb:127:in `assert_routing'
     test/functional/messages_controller_test.rb:111:in `test_route_two'
     activesupport (3.0.3) lib/active_support/testing/setup_and_teardown.rb:67:in `__send__'
     activesupport (3.0.3) lib/active_support/testing/setup_and_teardown.rb:67:in `run'
     activesupport (3.0.3) lib/active_support/callbacks.rb:438:in `_run_setup_callbacks'
     activesupport (3.0.3) lib/active_support/testing/setup_and_teardown.rb:65:in `run']:
found extras <{:game_id=>"1"}>, not <{}>

還嘗試了這個：

assert_routing({:path => "/games/1/messages", :method => :get}, {:controller => "messages", :action => "index"}, {}, {:game_id => "1"})

響應：

The recognized options <{"action"=>"index", "game_id"=>"1", "controller"=>"messages"}> 
did not match <{"action"=>"index", "controller"=>"messages"}>, difference: <{"game_id"=>"1"}>

我認為，以某種方式，我迷上了在嵌套資源上測試路由的語法。 有任何想法嗎？

提前致謝 -

Answer 1

斷言路由按此順序執行兩件事

• assert_recognizes
• assert_generates

因此，您的測試用例2進一步提高了/性能更好。

現在， assert_generates檢查url_for是否返回您提供的url。

url_for(:controller => "messages", :action => "index", :game_id => "1")
# should return: /games/1/messages

但是根據異常，它返回/messages?game_id=1 （額外的是game_id ）。 只有在您的resources :games 之前有resources :messages規則時， 才應該/只能發生這種情況。 如果是這種情況，請將其移到后面，以便嵌套規則首先出現。

Answer 2

嘗試

assert_routing({:path => "/games/1/messages", :method => :get}, {:controller => "messages", :action => "index"}, {}, {:game_id => "1"})