Function wrap

clock-bound/src/daemon/clock_sync_algorithm/ring_buffer.rs:229–235

()

    #[test]
    fn wrap() {
        let mut buffer = RingBuffer::new(NonZeroUsize::new(2).unwrap());

        buffer.push(1);
        buffer.push(2);
        buffer.push(3);
    }

    #[test]
    fn head_and_tail() {