use tlid::{AllocError, Checked, CheckedError, Pool};

#[test]
fn print_checked_error() {
    let mut pool = Pool::<Checked<i16>>::new(1..2);
    assert_eq!(pool.next(), Ok(1));
    assert_eq!(pool.next(), Err(CheckedError::PoolEmpty));
    assert_eq!(
        format!("{}", pool.next().unwrap_err()),
        "pool is empty, all Id's are used up"
    );
}

#[test]
fn source_checked_error() {
    let mut pool = Pool::<Checked<i16>>::new(1..2);
    assert_eq!(pool.next(), Ok(1));
    let sp = pool.next();
    let e: &dyn std::error::Error = &sp.unwrap_err();
    assert!(e.source().is_none());
}

#[test]
fn print_alloc_error() {
    let mut pool = Pool::<Checked<i16>>::new(1..4);
    let sp = pool.subpool(5);
    assert_eq!(sp.unwrap_err(), AllocError::SizeNotAvailable(5i16));
    let sp = pool.subpool(5);
    println!("kkk {}", sp.unwrap_err());
    let sp = pool.subpool(5);
    assert_eq!(
        format!("{}", sp.unwrap_err()),
        "not enough Id's in allocator to allocate 5 Id's"
    );
}

#[test]
fn source_alloc_error() {
    let mut pool = Pool::<Checked<i16>>::new(1..4);
    let sp = pool.subpool(5);
    let e: &dyn std::error::Error = &sp.unwrap_err();
    assert!(e.source().is_none());
}