From 86e13843c2ab510fba1de84588efe7fd03555531 Mon Sep 17 00:00:00 2001
From: Adam Johnson <me@adamj.eu>
Date: Thu, 27 Jun 2024 21:42:57 +0100
Subject: Refs #25466 -- Removed unused DeprecationInstanceCheck.

Unused since ff419de263138e905dff44c5cb806310c70f32aa.
---
 tests/deprecation/tests.py | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

(limited to 'tests')

diff --git a/tests/deprecation/tests.py b/tests/deprecation/tests.py
index b64691eb55..5548e90285 100644
--- a/tests/deprecation/tests.py
+++ b/tests/deprecation/tests.py
@@ -1,12 +1,7 @@
 import warnings
 
 from django.test import SimpleTestCase
-from django.utils.deprecation import (
-    DeprecationInstanceCheck,
-    RemovedAfterNextVersionWarning,
-    RemovedInNextVersionWarning,
-    RenameMethodsBase,
-)
+from django.utils.deprecation import RemovedAfterNextVersionWarning, RenameMethodsBase
 
 
 class RenameManagerMethods(RenameMethodsBase):
@@ -166,14 +161,3 @@ class RenameMethodsTests(SimpleTestCase):
         self.assertTrue(
             issubclass(RemovedAfterNextVersionWarning, PendingDeprecationWarning)
         )
-
-
-class DeprecationInstanceCheckTest(SimpleTestCase):
-    def test_warning(self):
-        class Manager(metaclass=DeprecationInstanceCheck):
-            alternative = "fake.path.Foo"
-            deprecation_warning = RemovedInNextVersionWarning
-
-        msg = "`Manager` is deprecated, use `fake.path.Foo` instead."
-        with self.assertWarnsMessage(RemovedInNextVersionWarning, msg):
-            isinstance(object, Manager)
-- 
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