diff --git a/connector_search_engine/tests/common.py b/connector_search_engine/tests/common.py
index 65a9a79..74d07be 100644
--- a/connector_search_engine/tests/common.py
+++ b/connector_search_engine/tests/common.py
@@ -4,7 +4,7 @@
 # Sébastien BEAU <sebastien.beau@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 import mock
-from odoo import api, models
+from odoo import models
 from odoo.addons.component.tests.common import SavepointComponentCase
 
 
@@ -25,18 +25,18 @@ class TestSeBackendCase(SavepointComponentCase):
     Tests With a fake Se Backend
     """
 
-    def _init_test_model(self, model_cls):
+    @classmethod
+    def _init_test_model(cls, model_cls):
         """
         Function to init/create a new Odoo Model during unit test.
         Based on base_kanban_stage/test/test_base_kanban_abstract.py
         :param model_cls: Odoo Model class
         :return: instance of model (empty)
         """
-        registry = self.env.registry
-        registry.enter_test_mode()
-        cr = self.env.cr
+        registry = cls.env.registry
+        cr = cls.env.cr
         model_cls._build_model(registry, cr)
-        model = self.env[model_cls._name].with_context(todo=[])
+        model = cls.env[model_cls._name].with_context(todo=[])
         model._prepare_setup()
         model._setup_base(partial=False)
         model._setup_fields(partial=False)
@@ -44,23 +44,28 @@ def _init_test_model(self, model_cls):
         model._auto_init()
         model.init()
         model._auto_end()
-        return self.env[model_cls._name]
+        return cls.env[model_cls._name]
+
+    @classmethod
+    def setUpClass(cls):
+        super(TestSeBackendCase, cls).setUpClass()
+        cls.env.cr.commit = mock.MagicMock()
+        cls._init_test_model(TestSeBackend)
 
     def setUp(self):
         super(TestSeBackendCase, self).setUp()
-        # To load a new Model, we have to use a new cursor and env.
-        # Because there is a commit on the model._auto_init()
-        # Based on base_kanban_stage/test/test_base_kanban_abstract.py
-        # self.registry.enter_test_mode()
-        # self.old_cursor = self.cr
-        # self.cr = self.registry.cursor()
-        self.cr.commit = mock.MagicMock()
-        self.env = api.Environment(self.cr, self.uid, {})
-        self._init_test_model(TestSeBackend)
         self.se_backend = self.env['test.se.backend'].create({
             'specific_model': 'test.se.backend',
         })
 
-    def tearDown(self):
-        self.registry.leave_test_mode()
-        super(TestSeBackendCase, self).tearDown()
+    @classmethod
+    def tearDownClass(cls):
+        # The cursor have been not commited as it have been mocked
+        # so there is not table 'test_se_backend' in the DB
+        # but the registry have been polluted by the class test.se.backend
+        # To avoid having error message (missing table 'test.se.backend' when
+        # running the test on several module
+        # We flag this class as an abstract class
+        # so odoo will do not care that the table do not exist
+        cls.env.registry['test.se.backend']._abstract = True
+        super(TestSeBackendCase, cls).tearDownClass()