python runtime_error ai_generated true

test_example 的 teardown 阶段出错

ERROR at teardown of test_example

ID: python/pytest-teardown-error

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80%修复率
84%置信度
0证据数
2024-06-18首次发现

版本兼容性

版本状态引入弃用备注
7.x active — — —
8.x active — — —

根因分析

夹具或测试的清理阶段抛出异常。这通常发生在清理代码（关闭连接、删除文件）因先前测试失败或资源泄漏而失败时。

English

The teardown phase of a fixture or test raised an exception. This often happens when cleanup code (closing connections, deleting files) fails due to prior test failures or resource leaks.

generic

解决方案

  1. 85% 成功率 
    @pytest.fixture
def resource():
    r = acquire()
    yield r
    try:
        r.release()
    except Exception as e:
        logging.warning(f'Teardown failed: {e}')
  2. 88% 成功率 
    @pytest.fixture
def resource(request):
    r = acquire()
    def cleanup():
        try:
            r.release()
        except Exception:
            pass
    request.addfinalizer(cleanup)
    return r

无效尝试

常见但无效的做法:

  1. 90% 失败

    This flag only affects collection errors, not teardown errors. The teardown failure will still be reported.

  2. 95% 失败

    This leaves resources open, causing cascading failures in subsequent tests (e.g., database locks, port conflicts).