Add test case to make sure we can implicit convert a Parameters to a Hash

1 files changed, 7 insertions, 0 deletions

diff --git a/actionpack/test/controller/parameters/parameters_permit_test.rb b/actionpack/test/controller/parameters/parameters_permit_test.rb
index daef9ad892..ae2b45c9f0 100644
--- a/actionpack/test/controller/parameters/parameters_permit_test.rb
+++ b/actionpack/test/controller/parameters/parameters_permit_test.rb
@@ -416,6 +416,13 @@ class ParametersPermitTest < ActiveSupport::TestCase
     assert_not_kind_of ActionController::Parameters, @params.to_hash
   end
 
+  test "parameters can be implicit converted to Hash" do
+    params = ActionController::Parameters.new
+    params.permit!
+
+    assert_equal({ a: 1 }, { a: 1 }.merge!(params))
+  end
+
   test "to_hash returns converted hash when .permit_all_parameters is set" do
     begin
       ActionController::Parameters.permit_all_parameters = true