python type_error ai_generated true

类型错误：test_case() 缺少 1 个必需的位置参数：'expected'

TypeError: test_case() missing 1 required positional argument: 'expected'

ID: python/typeerror-test-case-missing-args

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80%修复率
86%置信度
0证据数
2024-04-05首次发现

版本兼容性

版本状态引入弃用备注
3.8 active — — —
3.9 active — — —
3.10 active — — —

根因分析

测试函数定义了必需参数但调用时未提供所有参数。

English

Test function defined with required arguments but called without providing all arguments.

generic

解决方案

  1. 95% 成功率 Provide the missing argument in the test call 
    def test_case(input, expected): ... ; test_case(5, 10)
  2. 98% 成功率 Use pytest parametrize to supply arguments 
    @pytest.mark.parametrize('input,expected', [(5,10)]) 
def test_case(input, expected): ...

无效尝试

常见但无效的做法:

  1. Adding a default value to expected 50% 失败

    Default values may mask missing arguments but still cause logic errors if not intended.

  2. Ignoring the error and rerunning 90% 失败

    The test will continue to fail until the argument is provided.