diff --git a/spec/models/group_order_article_spec.rb b/spec/models/group_order_article_spec.rb
index b4888df4..1e7a2d3a 100644
--- a/spec/models/group_order_article_spec.rb
+++ b/spec/models/group_order_article_spec.rb
@@ -40,6 +40,15 @@ describe GroupOrderArticle do
       goa.update_quantities(0, 0)
       expect(GroupOrderArticle.exists?(goa.id)).to be false
     end
+
+    it 'updates quantity and tolerance' do
+        goa.update_quantities(2,2)
+        goa.update_quantities(1,1)
+        expect(goa.quantity).to eq(1)
+        expect(goa.tolerance).to eq(1)
+        goa.update_quantities(1,2)
+        expect(goa.tolerance).to eq(2)
+    end
   end
 
   describe 'distribution strategy' do