use subject_source::vec::access;

#[test]
pub fn add_last_two_not_enough() {
    assert_eq!(access::add_last_two(&[1.0]), None);
}

#[test]
pub fn add_last_two_enough() {
    assert_eq!(access::add_last_two(&[1.0, 2.0, 3.0]), Some(5.0));
}