Fixed error overlapping when validation error is caused by remove_unset root validator in base types and methods. (#1290)

* Ensure base type validation can handle non-dictionary values

The update introduces a condition to verify whether the values being validated are a dictionary before attempting to handle UNSET_TYPE in the aiogram base type. This adjustment helps to prevent potential errors or incorrect validation when non-dictionary values are faced.

* Added a test case for non-dictionary input in remove_unset method

* Added changelog

* Fixed tests

CHANGES/1290.bugfix.rst

@@ -0,0 +1 @@
+Fixed error overlapping when validation error is caused by remove_unset root validator in base types and methods.

aiogram/methods/base.py

@@ -61,6 +61,8 @@ class TelegramMethod(BotContextController, BaseModel, Generic[TelegramType], ABC
         but UNSET might be passing to a model initialization from `Bot.method_name`,
         so we must take care of it and remove it before fields validation.
         """
+        if not isinstance(values, dict):
+            return values
         return {k: v for k, v in values.items() if not isinstance(v, UNSET_TYPE)}
 
     if TYPE_CHECKING:

aiogram/types/base.py

@@ -28,6 +28,8 @@ class TelegramObject(BotContextController, BaseModel):
         but UNSET might be passed to a model initialization from `Bot.method_name`,
         so we must take care of it and remove it before fields validation.
         """
+        if not isinstance(values, dict):
+            return values
         return {k: v for k, v in values.items() if not isinstance(v, UNSET_TYPE)}
 
 

tests/test_api/test_methods/test_base.py

@@ -3,7 +3,7 @@ from unittest.mock import sentinel
 import pytest
 
 from aiogram.methods import GetMe, TelegramMethod
-from aiogram.types import User
+from aiogram.types import User, TelegramObject
 from tests.mocked_bot import MockedBot
 
 
@@ -16,10 +16,15 @@ class TestTelegramMethodRemoveUnset:
             [{"foo": "bar", "baz": sentinel.DEFAULT}, {"foo"}],
         ],
     )
-    def test_remove_unset(self, values, names):
-        validated = TelegramMethod.remove_unset(values)
+    @pytest.mark.parametrize("obj", [TelegramMethod, TelegramObject])
+    def test_remove_unset(self, values, names, obj):
+        validated = obj.remove_unset(values)
         assert set(validated.keys()) == names
 
+    @pytest.mark.parametrize("obj", [TelegramMethod, TelegramObject])
+    def test_remove_unset_non_dict(self, obj):
+        assert obj.remove_unset("") == ""
+
 
 class TestTelegramMethodCall:
     async def test_async_emit_unsuccessful(self, bot: MockedBot):