Function push_front

tests/test_linked_list.rs:17–31

()

#[test]
fn push_front() {
    let mut data = vec![1, 2, 3, 4, 5];
    let mut ll = LinkedList::default();
    for &v in &data {
        ll.push_front(v);
    }

    //len
    assert_eq!(ll.len(), data.len());

    //verify data
    let ll_data: Vec<i32> = ll.into_iter().collect();
    data.reverse();
    assert_eq!(ll_data, data);
}

#[test]
fn reverse() {