Fixed #21977 -- Deprecated SimpleTestCase.urls

tests/deprecation/tests.py

@@ -1,10 +1,13 @@
 from __future__ import unicode_literals
 
+import os
+import unittest
 import warnings
 
 from django.test import SimpleTestCase, RequestFactory, override_settings
 from django.utils import six, translation
 from django.utils.deprecation import RenameMethodsBase
+from django.utils.encoding import force_text
 from django.utils.functional import memoize
 
 
@@ -220,3 +223,26 @@ class DeprecatingMemoizeTest(SimpleTestCase):
             self.assertEqual(msg,
                 'memoize wrapper is deprecated and will be removed in Django '
                 '1.9. Use django.utils.lru_cache instead.')
+
+
+class DeprecatingSimpleTestCaseUrls(unittest.TestCase):
+
+    def test_deprecation(self):
+        """
+        Ensure the correct warning is raised when SimpleTestCase.urls is used.
+        """
+        class TempTestCase(SimpleTestCase):
+            urls = 'tests.urls'
+
+            def test(self):
+                pass
+
+        with warnings.catch_warnings(record=True) as recorded:
+            suite = unittest.TestLoader().loadTestsFromTestCase(TempTestCase)
+            with open(os.devnull, 'w') as devnull:
+                unittest.TextTestRunner(stream=devnull, verbosity=2).run(suite)
+                msg = force_text(recorded.pop().message)
+                self.assertEqual(msg,
+                    "SimpleTestCase.urls is deprecated and will be removed in "
+                    "Django 2.0. Use @override_settings(ROOT_URLCONF=...) "
+                    "in TempTestCase instead.")