implement token bucket rate limiting

test/functional/posts_controller_test.rb

@@ -19,16 +19,18 @@ class PostsControllerTest < ActionController::TestCase
     context "for api calls" do
       context "passing the api limit" do
         setup do
-          User.any_instance.stubs(:api_hourly_limit).returns(5)
+          @post = FactoryGirl.create(:post)
+          @bucket = TokenBucket.create(user_id: @user.id, token_count: 5, last_touched_at: Time.now)
+          User.any_instance.stubs(:api_burst_limit).returns(5)
         end
         
         should "work" do
-          CurrentUser.user.api_hourly_limit.times do
-            get :index, {:format => "json", :login => @user.name, :api_key => @user.api_key.key}
+          @user.api_burst_limit.times do
+            post :update, {:format => "json", :id => @post.id, :post => {:rating => "q"}, :login => @user.name, :api_key => @user.api_key.key}
             assert_response :success
           end
 
-          get :index, {:format => "json", :login => @user.name, :api_key => @user.api_key.key}
+            post :update, {:format => "json", :id => @post.id, :post => {:rating => "q"}, :login => @user.name, :api_key => @user.api_key.key}
           assert_response 429
         end
       end