diff --git a/ldap_sync/tests.py b/ldap_sync/tests.py
index 7ce503c2..27c6d3f5 100644
--- a/ldap_sync/tests.py
+++ b/ldap_sync/tests.py
@@ -1,3 +1,101 @@
+# Re2o est un logiciel d'administration développé initiallement au Rézo Metz. Il
+# se veut agnostique au réseau considéré, de manière à être installable en
+# quelques clics.
+#
+# Copyright © 2017  Gabriel Détraz
+# Copyright © 2017  Lara Kermarec
+# Copyright © 2017  Augustin Lemesle
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+"""users.tests
+The tests for the Users module.
+"""
+
+import os.path
+
+import volatildap
+from django.conf import settings
 from django.test import TestCase
 
-# Create your tests here.
+from . import models
+
+class LdapEnabledTestCase(TestCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.ldap = volatildap.LdapServer(
+            # Load some initial data
+            initial={'ou=people': {
+                'ou': ['people'],
+                'objectClass': ['organizationalUnit'],
+            }},
+            # Enable more LDAP schemas
+            schemas=['core.schema', 'cosine.schema', 'inetorgperson.schema', 'nis.schema'],
+        )
+        # The volatildap server uses specific defaults, and listens on an arbitrary port.
+        # Copy the server-side values to Django settings
+        settings.DATABASES['ldap']['USER'] = cls.ldap.rootdn
+        settings.DATABASES['ldap']['PASSWORD'] = cls.ldap.rootpw
+        settings.DATABASES['ldap']['NAME'] = cls.ldap.uri
+
+    def setUp(self):
+        super().setUp()
+        # Starting an already-started volatildap server performs a data reset
+        self.ldap.start()
+
+    @classmethod
+    def tearDownClass(cls):
+        # Free up resources on teardown.
+        cls.ldap.stop()
+        super().tearDownClass()
+
+class LdapUserTestCase(TestCase):
+    def test_create_ldap_user(self):
+        g = models.LdapUser.objects.create(
+            gid="500",
+            name="users_test_ldapuser",
+            uid="users_test_ldapuser",
+            uidNumber="21001",
+            sn="users_test_ldapuser",
+            login_shell="/bin/false",
+            mail="user@example.net",
+            given_name="users_test_ldapuser",
+            home_directory="/home/moamoak",
+            display_name="users_test_ldapuser",
+            dialupAccess="False",
+            sambaSID="21001",
+            user_password="{SSHA}aBcDeFgHiJkLmNoPqRsTuVwXyZ012345",
+            sambat_nt_password="0123456789ABCDEF0123456789ABCDEF",
+            macs=[],
+            shadowexpire="0",
+        )
+        self.assertEqual(g.name, "users_test_ldapuser")
+
+
+class LdapUserGroupTestCase(TestCase):
+    def test_create_ldap_user_group(self):
+        g = models.LdapUserGroup.objects.create(
+            gid="501", members=[], name="users_test_ldapusergroup"
+        )
+        self.assertEqual(g.name, "users_test_ldapusergroup")
+
+
+class LdapServiceUserTestCase(TestCase):
+    def test_create_ldap_service_user(self):
+        g = models.LdapServiceUser.objects.create(
+            name="users_test_ldapserviceuser",
+            user_password="{SSHA}AbCdEfGhIjKlMnOpQrStUvWxYz987654",
+        )
+        self.assertEqual(g.name, "users_test_ldapserviceuser")
diff --git a/users/tests.py b/users/tests.py
index 805fbaa8..954d4fc5 100644
--- a/users/tests.py
+++ b/users/tests.py
@@ -42,43 +42,3 @@ class ListShellTestCase(TestCase):
     def test_shell_are_created(self):
         s = models.ListShell.objects.create(shell="/bin/zsh")
         self.assertEqual(s.shell, "/bin/zsh")
-
-
-class LdapUserTestCase(TestCase):
-    def test_create_ldap_user(self):
-        g = models.LdapUser.objects.create(
-            gid="500",
-            name="users_test_ldapuser",
-            uid="users_test_ldapuser",
-            uidNumber="21001",
-            sn="users_test_ldapuser",
-            login_shell="/bin/false",
-            mail="user@example.net",
-            given_name="users_test_ldapuser",
-            home_directory="/home/moamoak",
-            display_name="users_test_ldapuser",
-            dialupAccess="False",
-            sambaSID="21001",
-            user_password="{SSHA}aBcDeFgHiJkLmNoPqRsTuVwXyZ012345",
-            sambat_nt_password="0123456789ABCDEF0123456789ABCDEF",
-            macs=[],
-            shadowexpire="0",
-        )
-        self.assertEqual(g.name, "users_test_ldapuser")
-
-
-class LdapUserGroupTestCase(TestCase):
-    def test_create_ldap_user_group(self):
-        g = models.LdapUserGroup.objects.create(
-            gid="501", members=[], name="users_test_ldapusergroup"
-        )
-        self.assertEqual(g.name, "users_test_ldapusergroup")
-
-
-class LdapServiceUserTestCase(TestCase):
-    def test_create_ldap_service_user(self):
-        g = models.LdapServiceUser.objects.create(
-            name="users_test_ldapserviceuser",
-            user_password="{SSHA}AbCdEfGhIjKlMnOpQrStUvWxYz987654",
-        )
-        self.assertEqual(g.name, "users_test_ldapserviceuser")