[MODEL] Added missing test for Response::Records#ids

Author: karmi

elasticsearch-model/test/unit/response_records_test.rb

@@ -20,15 +20,15 @@ def self.find(*args)
       end
     end
 
-    RESPONSE = { 'hits' => { 'total' => 123, 'max_score' => 456, 'hits' => [{'foo' => 'bar'}] } }
+    RESPONSE = { 'hits' => { 'total' => 123, 'max_score' => 456, 'hits' => [{'_id' => '1', 'foo' => 'bar'}] } }
     RESULTS  = Elasticsearch::Model::Response::Results.new DummyModel, RESPONSE
 
     setup do
       search   = Elasticsearch::Model::Searching::SearchRequest.new DummyModel, '*'
       search.stubs(:execute!).returns RESPONSE
 
       response = Elasticsearch::Model::Response::Response.new DummyModel, search
-      @records = Elasticsearch::Model::Response::Records.new DummyModel, response
+      @records = Elasticsearch::Model::Response::Records.new  DummyModel, response
     end
 
     should "access the records" do
@@ -58,6 +58,10 @@ def self.find(*args)
       assert_equal ['FOO---bar'], @records.map_with_hit { |record, hit| "#{record}---#{hit.foo}" }
     end
 
+    should "return the IDs" do
+      assert_equal ['1'], @records.ids
+    end
+
     context "with adapter" do
       module DummyAdapter
         module RecordsMixin