在Rails 3上嵌套路线的功能测试

Question

我有一个带有以下嵌套路由的Rails 3应用程序：

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

一个游戏有很多注释，一个游戏也有很多消息。

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

在应用程序中一切正常。 但是，我的路线测试失败了，我不知道为什么。

当我尝试这个：

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

我得到这个：

  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}>

当我尝试这样做时（请注意:game_id上的引号）：

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

我得到这个：

  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 <{}>

还尝试了这个：

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

响应：

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

我认为，以某种方式，我迷上了在嵌套资源上测试路由的语法。 有任何想法吗？

提前致谢 -

Answer 1

断言路由按此顺序执行两件事

• assert_recognizes
• assert_generates

因此，您的测试用例2进一步提高了/性能更好。

现在， assert_generates检查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

但是根据异常，它返回/messages?game_id=1 （额外的是game_id ）。 只有在您的resources :games 之前有resources :messages规则时， 才应该/只能发生这种情况。 如果是这种情况，请将其移到后面，以便嵌套规则首先出现。

Answer 2

尝试

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