[MODEL] Fixed incorrect as_json serialization for Response::Result

Author: karmi

elasticsearch-model/lib/elasticsearch/model/response/result.rb

@@ -38,6 +38,10 @@ def respond_to?(method_name, include_private = false)
           super
         end
 
+        def as_json(options={})
+          @result.as_json(options)
+        end
+
         # TODO: #to_s, #inspect, with support for Pry
 
       end

elasticsearch-model/test/unit/response_result_test.rb

@@ -40,5 +40,13 @@ class Elasticsearch::Model::ResultTest < Test::Unit::TestCase
       assert_raise(NoMethodError) { result.does_not_exist }
     end
 
+    should "delegate as_json to @result even when ActiveSupport changed half of Ruby" do
+      require 'active_support/json/encoding'
+      result = Elasticsearch::Model::Response::Result.new foo: 'bar'
+
+      result.instance_variable_get(:@result).expects(:as_json)
+      result.as_json(except: 'foo')
+    end
+
   end
 end