gistfile1.txt

fn last_but_one(list: Vec<int>) -> Option<int> {
    println!("{}", list.reverse());
    match list.is_empty() {
        true => { None }
        false => { list.reverse().get(1) }
    };
}


#[test]
fn test_last_but_one_with_empty_list() {
    assert_eq!(last_but_one(Vec::<int>::new()), None)
}

#[test]
fn test_gets_penultimate_element() {
    assert_eq!(last_but_one(vec!(1, 5, 6, 7, 2, 4)), Some(2));
}