[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, 4 insertions, 3 deletions

diff --git a/addons/note/tests/test_note.py b/addons/note/tests/test_note.py
index 124f45ca0af..598f3eaea1f 100644
--- a/addons/note/tests/test_note.py
+++ b/addons/note/tests/test_note.py
@@ -1,13 +1,14 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from odoo.tests import common
+from odoo.addons.base.tests.common import TransactionCaseWithUserDemo
 
-class TestNote(common.TransactionCase):
+
+class TestNote(TransactionCaseWithUserDemo):
 
     def test_bug_lp_1156215(self):
         """ ensure any users can create new users """
-        demo_user = self.env.ref('base.user_demo')
+        demo_user = self.user_demo
         group_erp = self.env.ref('base.group_erp_manager')
 
         demo_user.write({