diff --git a/actionpack/test/controller/test_case_test.rb b/actionpack/test/controller/test_case_test.rb
index 6c176b5144f8d41af2a6786d4756b068f61e86cd..0d6d303b5130e6cd917dd19e94ed91e8bf51d08c 100644
--- a/actionpack/test/controller/test_case_test.rb
+++ b/actionpack/test/controller/test_case_test.rb
@@ -886,3 +886,24 @@ def test_should_be_able_to_use_named_routes_before_a_request_is_done
     end
   end
 end
+
+class AnonymousControllerTest < ActionController::TestCase
+  def setup
+    @controller = Class.new(ActionController::Base) do
+      def index
+        render :text => params[:controller]
+      end
+    end.new
+
+    @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
+      r.draw do
+        get ':controller(/:action(/:id))'
+      end
+    end
+  end
+
+  def test_controller_name
+    get :index
+    assert_equal 'anonymous', @response.body
+  end
+end
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