Never treat action or controller as unpermitted params

1 files changed, 10 insertions, 0 deletions

diff --git a/actionpack/test/controller/parameters/raise_on_unpermitted_parameters_test.rb b/actionpack/test/controller/parameters/raise_on_unpermitted_parameters_test.rb
index 747b8123ea..3cedc16730 100644
--- a/actionpack/test/controller/parameters/raise_on_unpermitted_parameters_test.rb
+++ b/actionpack/test/controller/parameters/raise_on_unpermitted_parameters_test.rb
@@ -30,4 +30,14 @@ class RaiseOnUnpermittedParametersTest < ActiveSupport::TestCase
       params.permit(book: [:pages])
     end
   end
+  
+  test "action and controller keys are safe to ignore" do
+    params = ActionController::Parameters.new({
+      action: 'index', controller: 'stuff', book: { pages: 65 }
+    })
+
+    assert_nothing_raised do
+      params.permit(book: [:pages])
+    end
+  end
 end