Privatize unneededly protected methods in Action View tests

actionview/test/abstract_unit.rb

@@ -163,7 +163,7 @@ def self.build_app(routes = nil)
   # Stub Rails dispatcher so it does not get controller references and
   # simply return the controller#action as Rack::Body.
   class StubDispatcher < ::ActionDispatch::Routing::RouteSet::Dispatcher
-    protected
+    private
       def controller_reference(controller_param)
         controller_param
       end

actionview/test/activerecord/form_helper_activerecord_test.rb

@@ -52,7 +52,7 @@ def test_nested_fields_for_with_child_index_option_override_on_a_nested_attribut
     assert_dom_equal expected, output_buffer
   end
 
-  protected
+  private
 
     def hidden_fields(method = nil)
       txt = %{<input name="utf8" type="hidden" value="&#x2713;" />}

actionview/test/template/form_helper/form_with_test.rb

@@ -2184,7 +2184,7 @@ def test_form_with_only_instantiates_builder_once
     assert_equal 1, initialization_count, "form builder instantiated more than once"
   end
 
-  protected
+  private
     def hidden_fields(options = {})
       method = options[:method]
 

actionview/test/template/form_helper_test.rb

@@ -3439,7 +3439,7 @@ def test_form_for_only_instantiates_builder_once
     assert_equal 1, initialization_count, "form builder instantiated more than once"
   end
 
-  protected
+  private
 
     def hidden_fields(options = {})
       method = options[:method]

actionview/test/template/url_helper_test.rb

@@ -810,7 +810,7 @@ def show
     render_default
   end
 
-  protected
+  private
     def render_default
       render inline: "<%= link_to_unless_current('tasks', tasks_path) %>\n" +
         "<%= link_to_unless_current('tasks', tasks_url) %>"