def METHOD_NAME(
    self, test_config_env  # pylint: disable=unused-argument
):
    result = execute_cli()
    expected_message = [
        "usage: simpleResolver.py [-h] traitset entityref",
        "simpleResolver.py: error: the following arguments are required: traitset, entityref",
    ]
    assert result.stderr.splitlines() == expected_message
    assert result.returncode == 2