1 files changed, 14 insertions, 0 deletions
diff --git a/actionpack/test/dispatch/routing/route_set_test.rb b/actionpack/test/dispatch/routing/route_set_test.rb
index fe52c50336..9327fe12c6 100644
--- a/actionpack/test/dispatch/routing/route_set_test.rb
+++ b/actionpack/test/dispatch/routing/route_set_test.rb
@@ -17,6 +17,16 @@ module ActionDispatch
         @set = RouteSet.new
       end
 
+      test "not being empty when route is added" do
+        assert empty?
+
+        draw do
+          get 'foo', to: SimpleApp.new('foo#index')
+        end
+
+        assert_not empty?
+      end
+
       test "url helpers are added when route is added" do
         draw do
           get 'foo', to: SimpleApp.new('foo#index')
@@ -136,6 +146,10 @@ module ActionDispatch
         def url_helpers
           @set.url_helpers
         end
+
+        def empty?
+          @set.empty?
+        end
     end
   end
 end