diff --git a/tests/schema/tests.py b/tests/schema/tests.py
index d31a12e504..e516b17b59 100644
--- a/tests/schema/tests.py
+++ b/tests/schema/tests.py
@@ -1346,6 +1346,20 @@ class SchemaTests(TransactionTestCase):
         with connection.schema_editor() as editor:
             editor.alter_field(IntegerPK, old_field, new_field, strict=True)
 
+        # A model representing the updated model.
+        class IntegerPKToAutoField(Model):
+            i = AutoField(primary_key=True)
+            j = IntegerField(unique=True)
+
+            class Meta:
+                app_label = 'schema'
+                apps = new_apps
+                db_table = IntegerPK._meta.db_table
+
+        # An id (i) is generated by the database.
+        obj = IntegerPKToAutoField.objects.create(j=1)
+        self.assertIsNotNone(obj.i)
+
     def test_alter_int_pk_to_bigautofield_pk(self):
         """
         Should be able to rename an IntegerField(primary_key=True) to
@@ -1362,6 +1376,20 @@ class SchemaTests(TransactionTestCase):
         with connection.schema_editor() as editor:
             editor.alter_field(IntegerPK, old_field, new_field, strict=True)
 
+        # A model representing the updated model.
+        class IntegerPKToBigAutoField(Model):
+            i = BigAutoField(primary_key=True)
+            j = IntegerField(unique=True)
+
+            class Meta:
+                app_label = 'schema'
+                apps = new_apps
+                db_table = IntegerPK._meta.db_table
+
+        # An id (i) is generated by the database.
+        obj = IntegerPKToBigAutoField.objects.create(j=1)
+        self.assertIsNotNone(obj.i)
+
     @isolate_apps('schema')
     def test_alter_smallint_pk_to_smallautofield_pk(self):
         """