Fixed #32379 -- Started deprecation toward changing default USE_TZ to True.

Co-authored-by: Nick Pope <nick@nickpope.me.uk>
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/settings_tests/tests.py b/tests/settings_tests/tests.py
index c0c53fe391..ba38fd87ba 100644
--- a/tests/settings_tests/tests.py
+++ b/tests/settings_tests/tests.py
@@ -13,6 +13,7 @@ from django.test import (
 )
 from django.test.utils import requires_tz_support
 from django.urls import clear_script_prefix, set_script_prefix
+from django.utils.deprecation import RemovedInDjango50Warning
 
 
 @modify_settings(ITEMS={
@@ -332,6 +333,21 @@ class SettingsTests(SimpleTestCase):
         with self.assertRaisesMessage(ValueError, 'Incorrect timezone setting: test'):
             settings._setup()
 
+    def test_use_tz_false_deprecation(self):
+        settings_module = ModuleType('fake_settings_module')
+        settings_module.SECRET_KEY = 'foo'
+        sys.modules['fake_settings_module'] = settings_module
+        msg = (
+            'The default value of USE_TZ will change from False to True in '
+            'Django 5.0. Set USE_TZ to False in your project settings if you '
+            'want to keep the current default behavior.'
+        )
+        try:
+            with self.assertRaisesMessage(RemovedInDjango50Warning, msg):
+                Settings('fake_settings_module')
+        finally:
+            del sys.modules['fake_settings_module']
+
 
 class TestComplexSettingOverride(SimpleTestCase):
     def setUp(self):
@@ -398,6 +414,7 @@ class IsOverriddenTest(SimpleTestCase):
     def test_module(self):
         settings_module = ModuleType('fake_settings_module')
         settings_module.SECRET_KEY = 'foo'
+        settings_module.USE_TZ = False
         sys.modules['fake_settings_module'] = settings_module
         try:
             s = Settings('fake_settings_module')