Add database conversion test to the common app.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

HISTORY.rst

@@ -9,6 +9,7 @@
 * Add an user test mixin to group user testing.
 * Add test the user managament app for database conversion.
 * Add support for natural keys to the DocumentPageImageCache model.
+* Add database conversion test to the common app.
 
 3.1.1 (2018-09-18)
 ==================

mayan/apps/common/tests/test_models.py

@@ -0,0 +1,10 @@
+from __future__ import unicode_literals
+
+from common.tests import BaseTestCase
+from user_management.tests.mixins import UserTestMixin
+
+
+class UserLocaleProfileTestCase(UserTestMixin, BaseTestCase):
+    def test_natural_keys(self):
+        self._create_user()
+        self._test_database_conversion('auth', 'common')