diff --git a/mail_activity/tests/test_mail_activity.py b/mail_activity/tests/test_mail_activity.py
index 7ec3715a..339a1ad9 100644
--- a/mail_activity/tests/test_mail_activity.py
+++ b/mail_activity/tests/test_mail_activity.py
@@ -7,7 +7,7 @@ from openerp.tests.common import TransactionCase
 
 class TestMailActivity(TransactionCase):
     def test_mail_activity(self):
-        partner = self.env['res.partner'].search([], limit=1)
+        partner = self.env.ref('base.res_partner_address_1')
         activity = self.env['mail.activity'].with_context(
             default_res_model=partner._name,
         ).create({
@@ -16,11 +16,29 @@ class TestMailActivity(TransactionCase):
                 'mail_activity.mail_activity_data_meeting',
             ).id,
             'date_deadline': fields.Date.today(),
+            'summary': 'Hello world',
         })
         self.assertEqual(activity.res_name, partner.display_name)
         self.assertEqual(activity.state, 'today')
         self.assertEqual(partner.activity_state, 'today')
         activity.write({'user_id': self.env.ref('base.user_demo').id})
+        self.assertIn(
+            partner,
+            self.env['res.partner'].search([
+                ('activity_user_id', '=', activity.user_id.id),
+            ])
+        )
+        self.assertIn(
+            partner,
+            self.env['res.partner'].search([
+                ('activity_summary', 'like', 'Hello world'),
+            ])
+        )
         activity.action_feedback('feedback')
         self.assertIn('feedback', partner.message_ids[:1].body)
         self.assertFalse(activity.exists())
+        partner.unlink()
+        self.assertFalse(self.env['mail.activity'].search([
+            ('res_model', '=', 'res.partner'),
+            ('res_id', '=', partner.id),
+        ]))