Function test_pytest_param_id_requires_string

testing/test_mark.py:1185–1193

()

def test_pytest_param_id_requires_string() -> None:
    with pytest.raises(TypeError) as excinfo:
        pytest.param(id=True)  # type: ignore[arg-type]
    (msg,) = excinfo.value.args
    expected = (
        "Expected id to be a string or a `pytest.HIDDEN_PARAM` sentinel, "
        "got <class 'bool'>: True"
    )
    assert msg == expected


@pytest.mark.parametrize("s", (None, "hello world"))