#![cfg(feature = "collections")]

use commons::collections::*;

#[test]
fn test_queue() {
    let mut q: Queue<usize> = Queue::new();
    q.push(1);
    assert_eq!(Some(1), q.pop());
    assert_eq!(None, q.pop());
    assert_eq!(0, q.len());
    assert_eq!(true, q.is_empty());
    q.clear();
}

#[test]
fn test_stack() {
    let mut s: Stack<usize> = Stack::new();
    s.push(1);
    s.push(2);
    assert_eq!(Some(2), s.pop());
    s.pop();
    assert_eq!(None, s.pop());
    assert_eq!(0, s.len());
    assert_eq!(true, s.is_empty());
    s.clear()
}

#[test]
fn test_set() {
    let mut s: Set<usize> = Set::new();
    assert_eq!(0, s.len());
    assert_eq!(true, s.is_empty());
    s.add(&[1, 2, 3]);
    assert_eq!(vec![1, 2, 3], s.to_vec());
    assert_eq!(true, s.contain(1));
    assert_eq!(false, s.contain(9));
    s.delete(&[1, 2]);
}