Fixed #35815 -- Made system check accept db_default literals when DatabaseFeatures.supports_expression_defaults = False.

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/invalid_models_tests/test_ordinary_fields.py b/tests/invalid_models_tests/test_ordinary_fields.py
index e30d411138..1fcf3f708d 100644
--- a/tests/invalid_models_tests/test_ordinary_fields.py
+++ b/tests/invalid_models_tests/test_ordinary_fields.py
@@ -1207,6 +1207,23 @@ class InvalidDBDefaultTests(TestCase):
         expected_error = Error(msg=msg, obj=field, id="fields.E012")
         self.assertEqual(errors, [expected_error])
 
+    def test_literals_not_treated_as_expressions(self):
+        """
+        DatabaseFeatures.supports_expression_defaults = False shouldn't
+        prevent non-expression literals (integer, float, boolean, etc.) from
+        being used as database defaults.
+        """
+
+        class Model(models.Model):
+            field = models.FloatField(db_default=1.0)
+
+        field = Model._meta.get_field("field")
+        with unittest.mock.patch.object(
+            connection.features, "supports_expression_defaults", False
+        ):
+            errors = field.check(databases=self.databases)
+        self.assertEqual(errors, [])
+
 
 @isolate_apps("invalid_models_tests")
 class GeneratedFieldTests(TestCase):