From 700e6b83c178168c369df1cad358eab483e1a8df Mon Sep 17 00:00:00 2001
From: Adrian Mugnolo and Santiago Pastorino <adrian+santiago@wyeworks.com>
Date: Mon, 16 Dec 2013 17:55:41 -0200
Subject: [PATCH] Serializers now inherit root

---
 lib/active_model/serializer.rb                 |  1 +
 test/unit/active_model/serializer/root_test.rb | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/lib/active_model/serializer.rb b/lib/active_model/serializer.rb
index 871e3a76..1bacab29 100644
--- a/lib/active_model/serializer.rb
+++ b/lib/active_model/serializer.rb
@@ -13,6 +13,7 @@ module ActiveModel
 
     class << self
       def inherited(base)
+        base._root = _root
         base._attributes = (_attributes || []).dup
         base._associations = (_associations || {}).dup
       end
diff --git a/test/unit/active_model/serializer/root_test.rb b/test/unit/active_model/serializer/root_test.rb
index 6cf2c546..e3a160ce 100644
--- a/test/unit/active_model/serializer/root_test.rb
+++ b/test/unit/active_model/serializer/root_test.rb
@@ -54,6 +54,20 @@ module ActiveModel
           name: 'Name 1', description: 'Description 1'
         }, @serializer.as_json)
       end
+
+      def test_root_inheritance
+        ProfileSerializer._root = 'profile'
+
+        inherited_serializer_klass = Class.new(ProfileSerializer)
+        inherited_serializer_klass._root = 'inherited_profile'
+
+        another_inherited_serializer_klass = Class.new(ProfileSerializer)
+
+        assert_equal('inherited_profile',
+                     inherited_serializer_klass._root)
+        assert_equal('profile',
+                     another_inherited_serializer_klass._root)
+      end
     end
 
     class RootInSerializerTest < ActiveModel::TestCase