diff --git a/tests/db_utils/tests.py b/tests/db_utils/tests.py index 4e35e6bb8b..a6cfb43667 100644 --- a/tests/db_utils/tests.py +++ b/tests/db_utils/tests.py @@ -10,8 +10,18 @@ from django.test import SimpleTestCase, TestCase class ConnectionHandlerTests(SimpleTestCase): def test_connection_handler_no_databases(self): - """Empty DATABASES setting defaults to the dummy backend.""" - DATABASES = {} + """ + Empty DATABASES and empty 'default' settings default to the dummy + backend. + """ + for DATABASES in ( + {}, # Empty DATABASES setting. + {'default': {}}, # Empty 'default' database. + ): + with self.subTest(DATABASES=DATABASES): + self.assertImproperlyConfigured(DATABASES) + + def assertImproperlyConfigured(self, DATABASES): conns = ConnectionHandler(DATABASES) self.assertEqual(conns[DEFAULT_DB_ALIAS].settings_dict['ENGINE'], 'django.db.backends.dummy') msg = (