[1.8.x] Silenced deprecation warning in refs #24287 test.

tests/app_loading/tests.py

@@ -2,14 +2,16 @@ from __future__ import unicode_literals
 
 import os
 import sys
+import warnings
 
 from django.apps import apps
 from django.core.exceptions import ImproperlyConfigured
 from django.db import models
 from django.test import TestCase
 from django.test.utils import extend_sys_path
-from django.utils._os import upath
 from django.utils import six
+from django.utils._os import upath
+from django.utils.deprecation import RemovedInDjango19Warning
 
 
 class EggLoadingTest(TestCase):
@@ -98,6 +100,7 @@ class GetModelsTest(TestCase):
             'Ensure that its module, "models_that_do_not_live_in_an_app", '
             'is located inside an installed app.'
         )
-
+        with warnings.catch_warnings():
+            warnings.filterwarnings('ignore', category=RemovedInDjango19Warning)
             with self.assertRaisesMessage(ImproperlyConfigured, msg):
                 declare_model_outside_app()