Integrate django-autoadmin into the core apps

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

mayan/apps/autoadmin/tests/test_models.py

@@ -0,0 +1,43 @@
+from __future__ import unicode_literals
+
+import logging
+
+from django.test import TestCase
+
+from mayan.apps.common.tests.utils import mute_stdout
+
+from ..models import AutoAdminSingleton
+from ..settings import setting_username
+
+from .literals import TEST_ADMIN_USER_PASSWORD
+
+
+class AutoAdminHandlerTestCase(TestCase):
+    def test_post_admin_creation(self):
+        logging.disable(logging.INFO)
+
+        with mute_stdout():
+            AutoAdminSingleton.objects.create_autoadmin()
+
+        self.assertEqual(
+            AutoAdminSingleton.objects.get().account.username,
+            setting_username.value
+        )
+
+        user = AutoAdminSingleton.objects.get().account
+
+        user.set_password(TEST_ADMIN_USER_PASSWORD)
+        user.save(update_fields=['password'])
+
+        self.assertEqual(AutoAdminSingleton.objects.get().account, None)
+
+    def test_double_creation(self):
+        with mute_stdout():
+            AutoAdminSingleton.objects.create_autoadmin()
+
+        self.assertEqual(AutoAdminSingleton.objects.count(), 1)
+
+        logging.disable(logging.ERROR)
+
+        AutoAdminSingleton.objects.create_autoadmin()
+        self.assertEqual(AutoAdminSingleton.objects.count(), 1)