Function test_check

testing/python/raises_group.py:408–436

()

def test_check() -> None:
    exc = ExceptionGroup("", (ValueError(),))

    def is_exc(e: ExceptionGroup[ValueError]) -> bool:
        return e is exc

    is_exc_repr = repr_callable(is_exc)
    with RaisesGroup(ValueError, check=is_exc):
        raise exc

    with (
        fails_raises_group(
            f"check {is_exc_repr} did not return True on the ExceptionGroup"
        ),
        RaisesGroup(ValueError, check=is_exc),
    ):
        raise ExceptionGroup("", (ValueError(),))

    def is_value_error(e: BaseException) -> bool:
        return isinstance(e, ValueError)

    # helpful suggestion if the user thinks the check is for the sub-exception
    with (
        fails_raises_group(
            f"check {is_value_error} did not return True on the ExceptionGroup, but did return True for the expected ValueError. You might want RaisesGroup(RaisesExc(ValueError, check=<...>))"
        ),
        RaisesGroup(ValueError, check=is_value_error),
    ):
        raise ExceptionGroup("", (ValueError(),))


def test_unwrapped_match_check() -> None: