#[test]
pub fn test_vector_sort_by() {
    let mut names = vec!["Celeste", "Bassem", "Valentine", "Rick"];
    println!("The Vector before sorting = {:?}", names);
    names.sort_by(|a, b| a.len().cmp(&b.len()));
    println!("The sorted by length vector = {:?}", names);
    names.sort_by(|a, b| a.cmp(b));
    println!("The sorted by alphanumeric vector = {:?}", names);

    let integers = vec![48, 49, 50, 51];
    println!("Vector: {:?}", integers);
    let slice = Vec::from(&integers[1..integers.len()]);
    println!("Vector from 2nd element {:?}", slice);
    assert_eq!(3, slice.len())
}