1 files changed, 27 insertions, 8 deletions
diff --git a/actionpack/test/controller/required_params_test.rb b/actionpack/test/controller/required_params_test.rb
index b6efcd6f9a..4a83d07e7d 100644
--- a/actionpack/test/controller/required_params_test.rb
+++ b/actionpack/test/controller/required_params_test.rb
@@ -1,4 +1,6 @@
-require 'abstract_unit'
+# frozen_string_literal: true
+
+require "abstract_unit"
 
 class BooksController < ActionController::Base
   def create
@@ -32,7 +34,6 @@ class ActionControllerRequiredParamsTest < ActionController::TestCase
 end
 
 class ParametersRequireTest < ActiveSupport::TestCase
-
   test "required parameters should accept and return false value" do
     assert_equal(false, ActionController::Parameters.new(person: false).require(:person))
   end
@@ -50,17 +51,17 @@ class ParametersRequireTest < ActiveSupport::TestCase
   end
 
   test "require array when all required params are present" do
-    safe_params = ActionController::Parameters.new(person: {first_name: 'Gaurish', title: 'Mjallo', city: 'Barcelona'})
+    safe_params = ActionController::Parameters.new(person: { first_name: "Gaurish", title: "Mjallo", city: "Barcelona" })
       .require(:person)
       .require([:first_name, :title])
 
     assert_kind_of Array, safe_params
-    assert_equal ['Gaurish', 'Mjallo'], safe_params
+    assert_equal ["Gaurish", "Mjallo"], safe_params
   end
 
   test "require array when a required param is missing" do
     assert_raises(ActionController::ParameterMissing) do
-      ActionController::Parameters.new(person: {first_name: 'Gaurish', title: nil})
+      ActionController::Parameters.new(person: { first_name: "Gaurish", title: nil })
         .require(:person)
         .require([:first_name, :title])
     end
@@ -73,9 +74,27 @@ class ParametersRequireTest < ActiveSupport::TestCase
     assert params.value?("cinco")
   end
 
-  test "Deprecated methods are deprecated" do
-    assert_deprecated do
-      ActionController::Parameters.new(foo: "bar").merge!({bar: "foo"})
+  test "to_param works like in a Hash" do
+    params = ActionController::Parameters.new(nested: { key: "value" }).permit!
+    assert_equal({ nested: { key: "value" } }.to_param, params.to_param)
+
+    params = { root: ActionController::Parameters.new(nested: { key: "value" }).permit! }
+    assert_equal({ root: { nested: { key: "value" } } }.to_param, params.to_param)
+
+    assert_raise(ActionController::UnfilteredParameters) do
+      ActionController::Parameters.new(nested: { key: "value" }).to_param
+    end
+  end
+
+  test "to_query works like in a Hash" do
+    params = ActionController::Parameters.new(nested: { key: "value" }).permit!
+    assert_equal({ nested: { key: "value" } }.to_query, params.to_query)
+
+    params = { root: ActionController::Parameters.new(nested: { key: "value" }).permit! }
+    assert_equal({ root: { nested: { key: "value" } } }.to_query, params.to_query)
+
+    assert_raise(ActionController::UnfilteredParameters) do
+      ActionController::Parameters.new(nested: { key: "value" }).to_query
     end
   end
 end