[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>

2 files changed, 9 insertions, 2 deletions

diff --git a/odoo/addons/test_impex/tests/contacts.json b/odoo/addons/test_impex/tests/contacts.json
index a024d2b7ee4..8bf490bb4c0 100644
--- a/odoo/addons/test_impex/tests/contacts.json
+++ b/odoo/addons/test_impex/tests/contacts.json
@@ -1 +1 @@
-[["Wood y Wood Pecker", "", "Snow Street, 25", "Kainuu", "Finland", "Vendor", "1", ""], ["Roger Pecker", "Contact", "Snow Street, 27", "Kainuu", "Finland", "Vendor", "0", "Wood y Wood Pecker"], ["Sharon Pecker", "Delivery Address", "Snow Street, 28", "Kainuu", "Finland", "Vendor", "0", "Wood y Wood Pecker"], ["Thomas Pecker", "Contact", "Snow Street, 27", "Kainuu", "Finland", "Vendor", "0", "Wood y Wood Pecker"], ["Norseman Roundabout", "", "Atonium Street, 45a", "Brussels", "Belgium", "Vendor", "1", ""], ["Yvan Holiday", "Invoice Address", "Atonium Street, 45b", "Brussels", "Belgium", "Vendor", "0", "Norseman Roundabout"], ["Jack Unsworth", "Contact", "Atonium Street, 45a", "Brussels", "Belgium", "Vendor", "0", "Norseman Roundabout"]]
+[["Wood y Wood Pecker", "", "Snow Street, 25", "Kainuu", "Finland", "Sellers", "1", ""], ["Roger Pecker", "Contact", "Snow Street, 27", "Kainuu", "Finland", "Sellers", "0", "Wood y Wood Pecker"], ["Sharon Pecker", "Delivery Address", "Snow Street, 28", "Kainuu", "Finland", "Sellers", "0", "Wood y Wood Pecker"], ["Thomas Pecker", "Contact", "Snow Street, 27", "Kainuu", "Finland", "Sellers", "0", "Wood y Wood Pecker"], ["Norseman Roundabout", "", "Atonium Street, 45a", "Brussels", "Belgium", "Sellers", "1", ""], ["Yvan Holiday", "Invoice Address", "Atonium Street, 45b", "Brussels", "Belgium", "Sellers", "0", "Norseman Roundabout"], ["Jack Unsworth", "Contact", "Atonium Street, 45a", "Brussels", "Belgium", "Sellers", "0", "Norseman Roundabout"]]
diff --git a/odoo/addons/test_impex/tests/test_load.py b/odoo/addons/test_impex/tests/test_load.py
index edd346c6220..d2bd80f7e56 100644
--- a/odoo/addons/test_impex/tests/test_load.py
+++ b/odoo/addons/test_impex/tests/test_load.py
@@ -6,6 +6,7 @@ import pkgutil
 import re
 
 from odoo import fields
+from odoo.addons.base.tests.common import SavepointCaseWithUserDemo
 from odoo.tests import common
 from odoo.tools.misc import mute_logger
 
@@ -1007,7 +1008,13 @@ class test_o2m_multiple(ImporterCase):
         self.assertEqual(set(values(b.child2)), set([21, 22, 23]))
 
 
-class test_realworld(common.TransactionCase):
+class test_realworld(SavepointCaseWithUserDemo):
+
+    @classmethod
+    def setUpClass(cls):
+        super(test_realworld, cls).setUpClass()
+        cls._load_partners_set()
+
     def test_bigfile(self):
         data = json.loads(pkgutil.get_data(self.__module__, 'contacts_big.json').decode('utf-8'))
         result = self.env['res.partner'].load(['name', 'mobile', 'email', 'image_1920'], data)