1 files changed, 7 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/dispatcher.rb b/actionpack/lib/action_controller/dispatcher.rb
index 6e1e7a261f..b40f1ba9be 100644
--- a/actionpack/lib/action_controller/dispatcher.rb
+++ b/actionpack/lib/action_controller/dispatcher.rb
@@ -96,7 +96,7 @@ module ActionController
     include ActiveSupport::Callbacks
     define_callbacks :prepare_dispatch, :before_dispatch, :after_dispatch
 
-    def initialize(output, request = nil, response = nil)
+    def initialize(output = $stdout, request = nil, response = nil)
       @output, @request, @response = output, request, response
     end
 
@@ -123,6 +123,12 @@ module ActionController
       failsafe_rescue exception
     end
 
+    def call(env)
+      @request = RackRequest.new(env)
+      @response = RackResponse.new
+      dispatch
+    end
+
     def reload_application
       # Run prepare callbacks before every request in development mode
       run_callbacks :prepare_dispatch