python runtime_error ai_generated true

断言错误：期望 'foo' 以 (1,) 被调用，但实际以 (2,) 被调用

AssertionError: Expected 'foo' to be called with (1,) but was called with (2,)

ID: python/unittest-mock-side-effect-assertion-error

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80%修复率
85%置信度
0证据数
2025-08-01首次发现

版本兼容性

版本状态引入弃用备注
3.x active — — —

根因分析

mock 的调用参数与预期参数不匹配，通常是由于输入错误或 mock 配置错误。

English

The mock's call arguments don't match the expected arguments, often due to incorrect input or mock configuration.

generic

解决方案

  1. 90% 成功率 
    print(mock.call_args)
assert mock.call_args == call(1,)
  2. 85% 成功率 
    mock.assert_any_call(1)

无效尝试

常见但无效的做法:

  1. 80% 失败

    This hides the real bug in the code.

  2. 90% 失败

    It still fails if arguments don't match.