Refs #22997 -- Prevented requesting a default value for auto fields.

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/migrations/test_autodetector.py b/tests/migrations/test_autodetector.py
index 33196ea6f4..ac725d317e 100644
--- a/tests/migrations/test_autodetector.py
+++ b/tests/migrations/test_autodetector.py
@@ -1596,6 +1596,34 @@ class AutodetectorTests(BaseAutodetectorTests):
         )
 
     @mock.patch(
+        "django.db.migrations.questioner.MigrationQuestioner.ask_not_null_addition"
+    )
+    def test_add_auto_field_does_not_request_default(self, mocked_ask_method):
+        initial_state = ModelState(
+            "testapp",
+            "Author",
+            [
+                ("pkfield", models.IntegerField(primary_key=True)),
+            ],
+        )
+        for auto_field in [
+            models.AutoField,
+            models.BigAutoField,
+            models.SmallAutoField,
+        ]:
+            with self.subTest(auto_field=auto_field):
+                updated_state = ModelState(
+                    "testapp",
+                    "Author",
+                    [
+                        ("id", auto_field(primary_key=True)),
+                        ("pkfield", models.IntegerField(primary_key=False)),
+                    ],
+                )
+                self.get_changes([initial_state], [updated_state])
+                mocked_ask_method.assert_not_called()
+
+    @mock.patch(
         "django.db.migrations.questioner.MigrationQuestioner.ask_not_null_alteration",
         return_value=models.NOT_PROVIDED,
     )