[MERGE] various: Make the test suite demo data independant

Purpose
=======

This is the first huge step to improve the test suite in several ways:

- Make them demo data independent, allowing to modify the demo data without having to adapt the tests depending on it. It also allows to have a beautiful + convenient demo dataset to make a demonstration, and to configure complex data in the tests to manage the corner cases.
- Improve the test performances by converting them into SavepointCase. Each test will be rollbacked to it's initial state, after the setUpClass call. That way the different data are not re-created at each test for nothing.
- Introduce several test classes in base/tests/common.py to launch a TransactionCase, HttpCase or SavepointCase test with an available demo user, portal user or a large set of partners.
- This is the first step to tend to a rolling release process, allowing to execute the tests (or a subset of the tests) on a migrated base, for example.

closes odoo/odoo#39868

Taskid: 2075739
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/sale_coupon/tests/test_program_with_code_operations.py b/addons/sale_coupon/tests/test_program_with_code_operations.py
index 90452422a3b..d0010915357 100644
--- a/addons/sale_coupon/tests/test_program_with_code_operations.py
+++ b/addons/sale_coupon/tests/test_program_with_code_operations.py
@@ -36,7 +36,7 @@ class TestProgramWithCodeOperations(TestSaleCouponCommon):
 
         # Test the valid code on a wrong sales order
         wrong_partner_order = self.env['sale.order'].create({
-            'partner_id': self.env.ref('base.res_partner_1').id,
+            'partner_id': self.env['res.partner'].create({'name': 'My Partner'}).id,
         })
         with self.assertRaises(UserError):
             self.env['sale.coupon.apply.code'].with_context(active_id=wrong_partner_order.id).create({