UPD: improved tests.

apps/base/tests/test_urls.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+from django.test import SimpleTestCase
+from django.urls import reverse
+
+
+class UrlsTestCase(SimpleTestCase):
+    def test_root_reverse(self):
+        response = self.client.get(reverse('root'))
+        self.assertEqual(response.status_code, 200)