Fixed #22640 -- Raised TypeError when instantiating model with keyword and positional args for the same field.

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/basic/tests.py b/tests/basic/tests.py
index 43c7ccdfa6..c99fc7e723 100644
--- a/tests/basic/tests.py
+++ b/tests/basic/tests.py
@@ -68,6 +68,15 @@ class ModelInstanceCreationTests(TestCase):
         a.save()
         self.assertEqual(a.headline, 'Fourth article')
 
+    def test_positional_and_keyword_args_for_the_same_field(self):
+        msg = "Article() got both positional and keyword arguments for field '%s'."
+        with self.assertRaisesMessage(TypeError, msg % 'headline'):
+            Article(None, 'Fifth article', headline='Other headline.')
+        with self.assertRaisesMessage(TypeError, msg % 'headline'):
+            Article(None, 'Sixth article', headline='')
+        with self.assertRaisesMessage(TypeError, msg % 'pub_date'):
+            Article(None, 'Seventh article', datetime(2021, 3, 1), pub_date=None)
+
     def test_cannot_create_instance_with_invalid_kwargs(self):
         with self.assertRaisesMessage(TypeError, "Article() got an unexpected keyword argument 'foo'"):
             Article(