diff --git a/addons/sale/tests/test_sale_common.py b/addons/sale/tests/test_sale_common.py
index 85ecdeac108..ebea8f85c5f 100644
--- a/addons/sale/tests/test_sale_common.py
+++ b/addons/sale/tests/test_sale_common.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
-
+from collections import OrderedDict
 from odoo.addons.account.tests.account_test_classes import AccountingTestCase
 
 
@@ -27,11 +27,11 @@ class TestSale(AccountingTestCase):
             'groups_id': [(6, 0, [group_user.id])]
         })
         # create quotation with differend kinds of products (all possible combinations)
-        self.products = {
-            'prod_order': self.env.ref('product.product_order_01'),
-            'prod_del': self.env.ref('product.product_delivery_01'),
-            'serv_order': self.env.ref('product.service_order_01'),
-            'serv_del': self.env.ref('product.service_delivery'),
-        }
+        self.products = OrderedDict([
+            ('prod_order', self.env.ref('product.product_order_01')),
+            ('serv_del', self.env.ref('product.service_delivery')),
+            ('serv_order', self.env.ref('product.service_order_01')),
+            ('prod_del', self.env.ref('product.product_delivery_01')),
+        ])
 
         self.partner = self.env.ref('base.res_partner_1')