diff --git a/ruby/gilded_rose_spec.rb b/ruby/gilded_rose_spec.rb
index 0ff3837a..0e0ff881 100644
--- a/ruby/gilded_rose_spec.rb
+++ b/ruby/gilded_rose_spec.rb
@@ -60,16 +60,25 @@ describe GildedRose do
   end
 
   context 'para items Sulfuras' do
-    it 'no cambia su calidad' do
-      items = [Item.new("Sulfuras, Hand of Ragnaros", 10, 80)]
-      gilded = GildedRose.new(items)
-
-      gilded.update_quality()
-
-      expect(items[0].quality).to eq 80
+    before do
+      ## Arrange
+      @items = [Item.new("Sulfuras, Hand of Ragnaros", 10, 2)]
+      @gilded = GildedRose.new(@items)
     end
 
-    it 'no cambia los dias para venderlo'
+    it 'no cambia su calidad' do
+      @gilded.update_quality()
+
+      expect(@items[0].quality).to eq 80
+    end
+
+    it 'no cambia los dias para venderlo' do
+      @items[0].sell_in = 10
+
+      @gilded.update_quality()
+
+      expect(@items[0].sell_in).to eq 10
+    end
   end
 
   context 'para items Backstage Pass' do