Unit Test and named urls

tests/test_settings_attr.py

@@ -0,0 +1,21 @@
+from django.test import TestCase
+from pwa import app_settings
+
+
+class AppSettingsTest(TestCase):
+    def test_has_defined(self):
+        """Must have the attributes defined in app_settings.py"""
+        attributes = [
+            'PWA_SERVICE_WORKER_PATH',
+            'PWA_APP_NAME',
+            'PWA_APP_DESCRIPTION',
+            'PWA_APP_ROOT_URL',
+            'PWA_APP_THEME_COLOR',
+            'PWA_APP_BACKGROUND_COLOR',
+            'PWA_APP_DISPLAY',
+            'PWA_APP_START_URL',
+            'PWA_APP_ICONS'
+        ]
+        for attr in attributes:
+            with self.subTest():
+                self.assertTrue(hasattr(app_settings, attr))