use sysvmq::SysvMq;

#[test]
fn new_send_recv_delete() {
    let mut mq = SysvMq::new(0).expect("could not create SysV message queue with key 0");
    let msg = b"this is a test";
    let mut buf = [0u8; 14];
    mq.send(msg)
        .expect("could not send message to SysV message queue");
    mq.recv(&mut buf)
        .expect("could not receive message from SysV message queue");
    mq.delete().expect("could not destroy SysV message queue");
    assert_eq!(msg, &buf);
}

#[test]
fn separate_send_recv_clone() {
    let mut sender = SysvMq::new(0).expect("could not create SysV message queue with key 0");
    let mut receiver = sender.clone();
    let msg = b"this is another test";
    let mut buf = [0u8; 20];
    sender
        .send(msg)
        .expect("could not send message to SysV message queue");
    receiver
        .recv(&mut buf)
        .expect("could not receive message from SysV message queue");
    sender
        .delete()
        .expect("could not destroy SysV message queue");
    assert_eq!(msg, &buf);
}

#[test]
fn separate_send_recv_open() {
    let mut sender = SysvMq::new(0).expect("could not create SysV message queue with key 0");
    let mut receiver = SysvMq::open(sender.key, sender.id)
        .expect("could not create second handle to SysV message queue");
    let msg = b"this is another test";
    let mut buf = [0u8; 20];
    sender
        .send(msg)
        .expect("could not send message to SysV message queue");
    receiver
        .recv(&mut buf)
        .expect("could not receive message from SysV message queue");
    sender
        .delete()
        .expect("could not destroy SysV message queue");
    assert_eq!(msg, &buf);
}

#[test]
fn change_mode() {
    let mut mq = SysvMq::new(0).expect("could not create SysV message queue with key 0");
    let init_stats = mq
        .stat()
        .expect("could not get stats from SysV message queue");
    mq.mode(0o666)
        .expect("could not set mode of SysV message queue");
    let new_stats = mq
        .stat()
        .expect("could not get stats from SysV message queue");
    mq.delete().expect("could not destroy SysV message queue");

    assert_eq!(0o644, init_stats.msg_perm.mode);
    assert_eq!(0o666, new_stats.msg_perm.mode);
}