io_lines.rs - mozsearch

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#![warn(rust_2018_idioms)]

#![cfg(feature = "full")]

use tokio::io::AsyncBufReadExt;

use tokio_test::assert_ok;

#[tokio::test]

async fn lines_inherent() {

    let rd: &[u8] = b"hello\r\nworld\n\n";

    let mut st = rd.lines();

    let b = assert_ok!(st.next_line().await).unwrap();

    assert_eq!(b, "hello");

    let b = assert_ok!(st.next_line().await).unwrap();

    assert_eq!(b, "world");

    let b = assert_ok!(st.next_line().await).unwrap();

    assert_eq!(b, "");

    assert!(assert_ok!(st.next_line().await).is_none());