extern crate bytes; use bytes::{Buf, IntoBuf, Bytes}; #[test] fn iter_len() { let buf = Bytes::from(&b"hello world"[..]).into_buf(); let iter = buf.iter(); assert_eq!(iter.size_hint(), (11, Some(11))); assert_eq!(iter.len(), 11); } #[test] fn empty_iter_len() { let buf = Bytes::from(&b""[..]).into_buf(); let iter = buf.iter(); assert_eq!(iter.size_hint(), (0, Some(0))); assert_eq!(iter.len(), 0); }