Add default_serializer_options test

MIT-LICENSE

@@ -0,0 +1,21 @@
+Copyright (c) 2011-2012 José Valim & Yehuda Katz
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+

test/integration/action_controller/serialization_test.rb

@@ -40,6 +40,36 @@ module ActionController
       end
     end
 
+    class DefaultOptionsForSerializerScopeTest < ActionController::TestCase
+      class MyController < ActionController::Base
+        def default_serializer_options
+          { scope: current_admin }
+        end
+
+        def render_using_scope_set_in_default_serializer_options
+          render json: Profile.new({ name: 'Name 1', description: 'Description 1', comments: 'Comments 1' })
+        end
+
+        private
+
+        def current_user
+          'current_user'
+        end
+
+        def current_admin
+          'current_admin'
+        end
+      end
+
+      tests MyController
+
+      def test_render_using_scope_set_in_default_serializer_options
+        get :render_using_scope_set_in_default_serializer_options
+        assert_equal 'application/json', @response.content_type
+        assert_equal '{"profile":{"name":"Name 1","description":"Description 1 - current_admin"}}', @response.body
+      end
+    end
+
     class ExplicitSerializerScopeTest < ActionController::TestCase
       class MyController < ActionController::Base
         def render_using_implicit_serializer_and_explicit_scope