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-rw-r--r--actionpack/test/controller/parameters/parameters_permit_test.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/actionpack/test/controller/parameters/parameters_permit_test.rb b/actionpack/test/controller/parameters/parameters_permit_test.rb
index 12555c3136..6d41d4fc64 100644
--- a/actionpack/test/controller/parameters/parameters_permit_test.rb
+++ b/actionpack/test/controller/parameters/parameters_permit_test.rb
@@ -443,6 +443,16 @@ class ParametersPermitTest < ActiveSupport::TestCase
assert_equal expected, params.to_unsafe_h
end
+ test "to_unsafe_h does not mutate the parameters" do
+ params = ActionController::Parameters.new("f" => { "language_facet" => ["Tibetan"] })
+ params[:f]
+
+ params.to_unsafe_h
+
+ assert_not_predicate params, :permitted?
+ assert_not_predicate params[:f], :permitted?
+ end
+
test "to_h only deep dups Ruby collections" do
company = Class.new do
attr_reader :dupped