More class based handlers

tests/test_dispatcher/test_handler/test_callback_query.py

@@ -0,0 +1,26 @@
+from typing import Any
+
+import pytest
+from aiogram.api.types import CallbackQuery, User
+from aiogram.dispatcher.handler import CallbackQueryHandler
+
+
+class TestCallbackQueryHandler:
+    @pytest.mark.asyncio
+    async def test_attributes_aliases(self):
+        event = CallbackQuery(
+            id="chosen",
+            from_user=User(id=42, is_bot=False, first_name="Test"),
+            data="test",
+            chat_instance="test",
+        )
+
+        class MyHandler(CallbackQueryHandler):
+            async def handle(self) -> Any:
+                assert self.event == event
+                assert self.from_user == self.event.from_user
+                assert self.callback_data == self.event.data
+                assert self.message == self.message
+                return True
+
+        assert await MyHandler(event)