1 files changed, 6 insertions, 1 deletions
diff --git a/railties/test/application/middleware_test.rb b/railties/test/application/middleware_test.rb
index 31696598ce..0b92cdba54 100644
--- a/railties/test/application/middleware_test.rb
+++ b/railties/test/application/middleware_test.rb
@@ -23,7 +23,6 @@ module ApplicationTests
         "ActionDispatch::Cookies",
         "ActionDispatch::Session::CookieStore",
         "ActionDispatch::Flash",
-        "ActionDispatch::Cascade",
         "ActionDispatch::ParamsParser",
         "Rack::MethodOverride",
         "ActionDispatch::Head",
@@ -70,6 +69,12 @@ module ApplicationTests
       assert_equal "Rack::Config", middleware.first
     end
 
+    test "shows cascade if any metal exists" do
+      app_file "app/metal/foo.rb", "class Foo; end"
+      boot!
+      assert middleware.include?("ActionDispatch::Cascade")
+    end
+
     private
       def boot!
         require "#{app_path}/config/environment"