1 files changed, 12 insertions, 0 deletions
diff --git a/actionpack/test/dispatch/routing/direct_url_helpers_test.rb b/actionpack/test/dispatch/routing/direct_url_helpers_test.rb
index 56bb7f13b3..24e46758cc 100644
--- a/actionpack/test/dispatch/routing/direct_url_helpers_test.rb
+++ b/actionpack/test/dispatch/routing/direct_url_helpers_test.rb
@@ -212,4 +212,16 @@ class TestDirectUrlHelpers < ActionDispatch::IntegrationTest
       end
     end
   end
+
+  def test_defining_inside_a_scope_raises_runtime_error
+    routes = ActionDispatch::Routing::RouteSet.new
+
+    assert_raises RuntimeError do
+      routes.draw do
+        namespace :admin do
+          direct(:rubyonrails) { "http://www.rubyonrails.org" }
+        end
+      end
+    end
+  end
 end