Updated JSONField's test_invalid_value.

Author: timgraham

tests/model_fields/test_jsonfield.py

@@ -45,8 +45,8 @@
 @skipUnlessDBFeature("supports_json_field")
 class JSONFieldTests(TestCase):
     def test_invalid_value(self):
-        msg = "is not JSON serializable"
-        with self.assertRaisesMessage(TypeError, msg):
+        msg = "cannot encode native uuid.UUID with UuidRepresentation.UNSPECIFIED"
+        with self.assertRaisesMessage(ValueError, msg):
             NullableJSONModel.objects.create(
                 value={
                     "uuid": uuid.UUID("d85e2076-b67c-4ee7-8c3a-2bf5a2cc2475"),