diff --git a/spec/factories/order.rb b/spec/factories/order.rb
index 27af29d6..f3bf1bde 100644
--- a/spec/factories/order.rb
+++ b/spec/factories/order.rb
@@ -24,4 +24,8 @@ FactoryGirl.define do
     end
   end
 
+  # requires order and article
+  factory :order_article do
+  end
+
 end
diff --git a/spec/factories/supplier.rb b/spec/factories/supplier.rb
index fdb2fa03..e4a1c18b 100644
--- a/spec/factories/supplier.rb
+++ b/spec/factories/supplier.rb
@@ -13,7 +13,7 @@ FactoryGirl.define do
 
     after :create do |supplier, evaluator|
       article_count = evaluator.article_count
-      article_count = rand(1..100) if article_count == true
+      article_count = rand(1..99) if article_count == true
       FactoryGirl.create_list :article, article_count, supplier: supplier
     end
   end
diff --git a/spec/models/group_order_article_spec.rb b/spec/models/group_order_article_spec.rb
index 759e2afc..160b312f 100644
--- a/spec/models/group_order_article_spec.rb
+++ b/spec/models/group_order_article_spec.rb
@@ -24,20 +24,20 @@ describe GroupOrderArticle do
     end
 
     it 'can be ordered in larger amounts' do
-      quantity, tolerance = rand(13..100), rand(0..100)
+      quantity, tolerance = rand(13..99), rand(0..99)
       goa.update_quantities(quantity, tolerance)
       expect(goa.quantity).to eq(quantity)
       expect(goa.tolerance).to eq(tolerance)
     end
 
     it 'has a proper total price' do
-      quantity = rand(1..100)
+      quantity = rand(1..99)
       goa.update_quantities(quantity, 0)
       expect(goa.total_price).to eq(quantity * goa.order_article.price.fc_price)
     end
 
     it 'can unorder a product' do
-      goa.update_quantities(rand(1..100), rand(0..100))
+      goa.update_quantities(rand(1..99), rand(0..99))
       goa.update_quantities(0, 0)
       expect(goa.quantity).to eq(0)
       expect(goa.tolerance).to eq(0)