3 files changed, 6 insertions, 12 deletions
diff --git a/actionpack/lib/action_controller/dispatch/dispatcher.rb b/actionpack/lib/action_controller/dispatch/dispatcher.rb
index 75b778a676..e04da42637 100644
--- a/actionpack/lib/action_controller/dispatch/dispatcher.rb
+++ b/actionpack/lib/action_controller/dispatch/dispatcher.rb
@@ -7,12 +7,6 @@ module ActionController
     cattr_accessor :prepare_each_request
     self.prepare_each_request = false
 
-    cattr_accessor :router
-    self.router = Routing::Routes
-
-    cattr_accessor :middleware
-    self.middleware = ActionDispatch::MiddlewareStack.new
-
     class << self
       def define_dispatcher_callbacks(cache_classes)
         unless cache_classes
@@ -21,7 +15,7 @@ module ActionController
 
           # Development mode callbacks
           ActionDispatch::Callbacks.before_dispatch do |app|
-            ActionController::Dispatcher.router.reload
+            ActionController::Routing::Routes.reload
           end
 
           ActionDispatch::Callbacks.after_dispatch do
@@ -55,7 +49,8 @@ module ActionController
         :to => ActionDispatch::Callbacks
 
       def new
-        @@middleware.build(@@router)
+        # DEPRECATE Rails application fallback
+        Rails.application
       end
     end
   end
diff --git a/actionpack/lib/action_controller/testing/process.rb b/actionpack/lib/action_controller/testing/process.rb
index fd368a7d79..bbc7f3c8f9 100644
--- a/actionpack/lib/action_controller/testing/process.rb
+++ b/actionpack/lib/action_controller/testing/process.rb
@@ -99,7 +99,6 @@ module ActionController #:nodoc:
 
       temporary_routes = ActionController::Routing::RouteSet.new
       ActionController::Routing.module_eval { const_set :Routes, temporary_routes }
-      ActionController::Dispatcher.router = temporary_routes
 
       yield temporary_routes
     ensure
@@ -107,7 +106,6 @@ module ActionController #:nodoc:
         ActionController::Routing.module_eval { remove_const :Routes }
       end
       ActionController::Routing.const_set(:Routes, real_routes) if real_routes
-      ActionController::Dispatcher.router = ActionController::Routing::Routes
     end
   end
 end
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index f5dcea9158..9f7877fa46 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -484,8 +484,9 @@ module ActionDispatch
     @@app = nil
 
     def self.app
-      # DEPRECATE AC::Dispatcher fallback
-      @@app || ActionController::Dispatcher.new
+      # DEPRECATE Rails application fallback
+      # This should be set by the initializer
+      @@app || (defined?(Rails.application) && Rails.application) || nil
     end
 
     def self.app=(app)