diff --git a/gestioncof/models.py b/gestioncof/models.py
index 19590aff..01798180 100644
--- a/gestioncof/models.py
+++ b/gestioncof/models.py
@@ -5,11 +5,12 @@ from __future__ import print_function
 from __future__ import unicode_literals
 
 from django.db import models
+from django.dispatch import receiver
 from django.contrib.auth.models import User
 from django.utils.translation import ugettext_lazy as _
 from django.utils.encoding import python_2_unicode_compatible
 import django.utils.six as six
-from django.db.models.signals import post_save
+from django.db.models.signals import post_save, post_delete
 
 from gestioncof.petits_cours_models import choices_length
 
@@ -78,10 +79,15 @@ class CofProfile(models.Model):
         return six.text_type(self.user.username)
 
 
+@receiver(post_save, sender=User)
 def create_user_profile(sender, instance, created, **kwargs):
     if created:
         CofProfile.objects.get_or_create(user=instance)
-post_save.connect(create_user_profile, sender=User)
+
+
+@receiver(post_delete, sender=CofProfile)
+def post_delete_user(sender, instance, *args, **kwargs):
+    instance.user.delete()
 
 
 @python_2_unicode_compatible
diff --git a/gestioncof/tests.py b/gestioncof/tests.py
index a83ebffc..66043daf 100644
--- a/gestioncof/tests.py
+++ b/gestioncof/tests.py
@@ -12,10 +12,22 @@ from __future__ import unicode_literals
 
 from django.test import TestCase
 
+from gestioncof.models import CofProfile, User
+
 
 class SimpleTest(TestCase):
-    def test_basic_addition(self):
-        """
-        Tests that 1 + 1 always equals 2.
-        """
-        self.assertEqual(1 + 1, 2)
+    def test_delete_user(self):
+        u = User(username='foo', first_name='foo', last_name='bar')
+
+        # to each user there's a cofprofile associated
+        u.save()
+        self.assertTrue(CofProfile.objects.filter(user__username='foo').exists())
+
+        # there's no point in having a cofprofile without a user associated.
+        u.delete()
+        self.assertFalse(CofProfile.objects.filter(user__username='foo').exists())
+
+        # there's no point in having a user without a cofprofile associated.
+        u.save()
+        CofProfile.objects.get(user__username='foo').delete()
+        self.assertFalse(User.objects.filter(username='foo').exists())
diff --git a/provisioning/bootstrap.sh b/provisioning/bootstrap.sh
index 89e8790d..413c445e 100644
--- a/provisioning/bootstrap.sh
+++ b/provisioning/bootstrap.sh
@@ -21,6 +21,7 @@ echo "mysql-server mysql-server/root_password_again password $DBPASSWD" | debcon
 apt-get install -y mysql-server
 
 mysql -uroot -p$DBPASSWD -e "CREATE DATABASE $DBNAME; GRANT ALL PRIVILEGES ON $DBNAME.* TO '$DBUSER'@'localhost' IDENTIFIED BY '$DBPASSWD'"
+mysql -uroot -p$DBPASSWD -e "CREATE DATABASE test_$DBNAME; GRANT ALL PRIVILEGES ON test_$DBNAME.* TO '$DBUSER'@'localhost'"
 
 # Installation et configuration d'Apache
 apt-get install -y apache2