diff --git a/allauth_ens/tests.py b/allauth_ens/tests.py
index f8bf5c0..a35ca3b 100644
--- a/allauth_ens/tests.py
+++ b/allauth_ens/tests.py
@@ -9,13 +9,14 @@ from django.core import mail
 from django.test import TestCase, override_settings
 
 from allauth.socialaccount.models import SocialAccount
-from allauth_ens.utils import get_ldap_infos
 
 import six
 from allauth_cas.test.testcases import CASTestCase
 from fakeldap import MockLDAP
 from mock import patch
 
+from allauth_ens.utils import get_ldap_infos
+
 from .adapter import deprecate_clippers, install_longterm_adapter
 
 _mock_ldap = MockLDAP()
@@ -375,4 +376,4 @@ class LongTermClipperTests(CASTestCase):
         for uid in uids:
             with self.assertRaises(ValueError) as cm:
                 get_ldap_infos(uid)
-            self.assertIn(uid, cm.exception.message)
+            self.assertIn(uid, str(cm.exception))