python runtime_error ai_generated true

AssertionError: ValueError not raised by my_function

ID: python/unittest-assertraises-not-raising

Also available as: JSON · Markdown · 中文
80%Fix Rate
82%Confidence
0Evidence
2024-06-20First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

The code under test does not raise the expected exception, or the exception is caught inside the function.

generic

中文

被测代码未引发预期的异常，或异常在函数内部被捕获。

Workarounds

  1. 90% success 
    Run the function in a Python shell and check if it raises ValueError. If not, fix the function or update the test to expect the correct exception.
  2. 85% success 
    with pytest.raises(ValueError):
    my_function()
This provides clearer error messages and works with pytest's assertion introspection.

Dead Ends

Common approaches that don't work:

  1. 90% fail

    The test then passes even if no exception is raised, missing the intended validation.

  2. 70% fail

    This may pass but does not verify the correct exception type, reducing test effectiveness.