python runtime_error ai_generated true

AssertionError：assert {'a': 1, 'b': 2} == {'a': 1, 'b': 3} 省略了 1 个相同项，使用 -vv 显示不同项：

AssertionError: assert {'a': 1, 'b': 2} == {'a': 1, 'b': 3} Omitting 1 identical items, use -vv to show Differing items:

ID: python/pytest-assertion-introspection-noqa

其他格式: JSON · Markdown 中文 · English

80%修复率

87%置信度

0证据数

2024-04-15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

断言差异默认被截断；开发者认为差异缺失，实际上 -vv 会显示它。有时真正的错误是类型不匹配（1 与 '1'）。

English

The assertion diff is truncated by default; developers think the diff is missing when actually -vv would show it. Sometimes the real bug is a type mismatch (1 vs '1').

generic

解决方案

95% 成功率
```
pytest -vv tests/test_x.py::test_dict
```

90% 成功率

# pytest.ini
[pytest]
addopts = -vv --showlocals

无效尝试

常见但无效的做法:

70% 失败
Adds noise; the real fix is enabling verbose diff.
75% 失败
unittest diff is also truncated by default.
80% 失败
Only shows the message, not the structured diff.