Function test_read

block-buffer/tests/mod.rs:117–158

()

#[test]
fn test_read() {
    type Buf = ReadBuffer<U4>;
    let mut buf = Buf::default();

    let mut n = 0u8;
    let mut g = |block: &mut Array<u8, U4>| {
        block.iter_mut().for_each(|b| {
            *b = n;
            n += 1;
        });
    };

    let res = buf.read_cached(0);
    assert!(res.is_empty());
    let res = buf.read_cached(10);
    assert!(res.is_empty());

    buf.write_block(2, &mut g, |buf| assert_eq!(buf, [0, 1]));
    assert_eq!(buf.remaining(), 2);

    let res = buf.read_cached(1);
    assert_eq!(res, [2]);
    let res = buf.read_cached(10);
    assert_eq!(res, [3]);
    assert_eq!(buf.remaining(), 0);

    buf.write_block(0, |_| unreachable!(), |_| unreachable!());
    buf.write_block(3, &mut g, |buf| assert_eq!(buf, [4, 5, 6]));
    assert_eq!(buf.remaining(), 1);

    buf.write_block(0, |_| unreachable!(), |_| unreachable!());
    assert_eq!(buf.remaining(), 1);
    let res = buf.read_cached(10);
    assert_eq!(res, [7]);

    buf.write_block(1, &mut g, |buf| assert_eq!(buf, [8]));
    assert_eq!(buf.remaining(), 3);

    let res = buf.read_cached(10);
    assert_eq!(res, [9, 10, 11]);
    assert_eq!(buf.remaining(), 0);
}

#[test]
fn test_eager_paddings() {