1 files changed, 41 insertions, 0 deletions
diff --git a/tests/deprecation/test_signed_cookie_legacy_salt_fallback.py b/tests/deprecation/test_signed_cookie_legacy_salt_fallback.py
new file mode 100644
index 0000000000..4b51707e45
--- /dev/null
+++ b/tests/deprecation/test_signed_cookie_legacy_salt_fallback.py
@@ -0,0 +1,41 @@
+import sys
+from types import ModuleType
+
+from django.conf import (
+    SIGNED_COOKIE_LEGACY_SALT_DEPRECATED_MSG,
+    LazySettings,
+    Settings,
+    settings,
+)
+from django.test import SimpleTestCase
+from django.utils.deprecation import RemovedInDjango70Warning
+
+
+# RemovedInDjango70Warning.
+class SignedCookieLegacySaltFallbackDeprecationTests(SimpleTestCase):
+    msg = SIGNED_COOKIE_LEGACY_SALT_DEPRECATED_MSG
+
+    def test_override_settings_warning(self):
+        with self.assertRaisesMessage(RemovedInDjango70Warning, self.msg):
+            with self.settings(SIGNED_COOKIE_LEGACY_SALT_FALLBACK=True):
+                pass
+
+    def test_settings_init_warning(self):
+        settings_module = ModuleType("fake_settings_module")
+        settings_module.USE_TZ = False
+        settings_module.SIGNED_COOKIE_LEGACY_SALT_FALLBACK = True
+        sys.modules["fake_settings_module"] = settings_module
+        try:
+            with self.assertRaisesMessage(RemovedInDjango70Warning, self.msg):
+                Settings("fake_settings_module")
+        finally:
+            del sys.modules["fake_settings_module"]
+
+    def test_settings_assignment_warning(self):
+        lazy_settings = LazySettings()
+        with self.assertRaisesMessage(RemovedInDjango70Warning, self.msg):
+            lazy_settings.SIGNED_COOKIE_LEGACY_SALT_FALLBACK = True
+
+    def test_access(self):
+        # Warning is not raised on access.
+        self.assertEqual(settings.SIGNED_COOKIE_LEGACY_SALT_FALLBACK, False)