python type_error ai_generated true

AttributeError: Mock 对象没有属性 'close' 处理上述异常时又出现另一个异常: TypeError: MagicMock 对象不能在 'await' 表达式中使用

AttributeError: Mock object has no attribute 'close' During handling of the above exception, another exception occurred: TypeError: object MagicMock can't be used in 'await' expression

ID: python/pytest-mock-magicmock-spec-missing

其他格式: JSON · Markdown 中文 · English
80%修复率
88%置信度
0证据数
2024-06-11首次发现

版本兼容性

版本状态引入弃用备注
3.8 active — — —
3.11 active — — —
3.12 active — — —

根因分析

MagicMock 被返回，但期望的是异步上下文管理器或特定接口。MagicMock 会自动创建属性，但其返回值不可 await；协程应使用 AsyncMock 并配置魔术方法。

English

A MagicMock was returned where an async context manager or specific interface was expected. MagicMock auto-creates attributes but its return values are not awaitable; use AsyncMock for coroutines and configure magic methods.

generic

解决方案

  1. 93% 成功率 
    Use AsyncMock for async interfaces:
  from unittest.mock import AsyncMock
  mock_client = AsyncMock()
  mock_client.get.return_value = {'ok': True}
  2. 85% 成功率 
    Configure magic methods on MagicMock:
  m = MagicMock()
  m.__aenter__ = AsyncMock(return_value=m)
  m.__aexit__ = AsyncMock(return_value=None)

无效尝试

常见但无效的做法:

  1. 70% 失败

    Fixes only the first error; await-related TypeError persists for async usage.

  2. 85% 失败

    Plain Mock does not support __aenter__/__aexit__ or magic methods; more AttributeErrors appear.