Fixed #31223 -- Added __class_getitem__() to Manager and QuerySet.

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/managers_regress/tests.py b/tests/managers_regress/tests.py
index 3c2ba5e1f1..7fa6815959 100644
--- a/tests/managers_regress/tests.py
+++ b/tests/managers_regress/tests.py
@@ -1,7 +1,10 @@
+from unittest import skipUnless
+
 from django.db import models
 from django.template import Context, Template
 from django.test import SimpleTestCase, TestCase, override_settings
 from django.test.utils import isolate_apps
+from django.utils.version import PY37
 
 from .models import (
     AbstractBase1, AbstractBase2, AbstractBase3, Child1, Child2, Child3,
@@ -285,3 +288,7 @@ class TestManagerInheritance(SimpleTestCase):
 
         self.assertEqual(TestModel._meta.managers, (TestModel.custom_manager,))
         self.assertEqual(TestModel._meta.managers_map, {'custom_manager': TestModel.custom_manager})
+
+    @skipUnless(PY37, '__class_getitem__() was added in Python 3.7')
+    def test_manager_class_getitem(self):
+        self.assertIs(models.Manager[Child1], models.Manager)