[IMP] mail: add basic for update notification (ping)

Ensures no regression on a3509d2

Author: bouvyd

addons/mail/tests/__init__.py

@@ -10,3 +10,4 @@
 import test_mail_template
 import test_invite
 import test_ir_actions
+import test_update_notification

addons/mail/tests/test_update_notification.py

@@ -0,0 +1,11 @@
+# -*- coding: utf-8 -*-
+from odoo.tests.common import TransactionCase
+
+
+class TestUpdateNotification(TransactionCase):
+    def test_user_count(self):
+        ping_msg = self.env['publisher_warranty.contract'].with_context(active_test=False)._get_message()
+        user_count = self.env['res.users'].search_count([('active', '=', True)])
+        self.assertEqual(ping_msg.get('nbr_users'), user_count, 'Update Notification: Users count is badly computed in ping message')
+        share_user_count = self.env['res.users'].search_count([('active', '=', True), ('share', '=', True)])
+        self.assertEqual(ping_msg.get('nbr_share_users'), share_user_count, 'Update Notification: Portal Users count is badly computed in ping message')