aiogram/tests/test_api/test_methods/test_get_chat.py

import pytest
from aiogram.api.methods import GetChat, Request
from aiogram.api.types import Chat
from tests.mocked_bot import MockedBot


class TestGetChat:
    @pytest.mark.asyncio
    async def test_method(self, bot: MockedBot):
        prepare_result = bot.add_result_for(
            GetChat, ok=True, result=Chat(id=-42, type="channel", title="chat")
        )

        response: Chat = await GetChat(chat_id=-42)
        request: Request = bot.get_request()
        assert request.method == "getChat"
        assert response == prepare_result.result

    @pytest.mark.asyncio
    async def test_bot_method(self, bot: MockedBot):
        prepare_result = bot.add_result_for(
            GetChat, ok=True, result=Chat(id=-42, type="channel", title="chat")
        )

        response: Chat = await bot.get_chat(chat_id=-42)
        request: Request = bot.get_request()
        assert request.method == "getChat"
        assert response == prepare_result.result