1 #![warn(rust_2018_idioms)]
2 #![cfg(feature = "full")]
3 
4 use tokio::io::AsyncReadExt;
5 use tokio_test::assert_ok;
6 
7 #[tokio::test]
read_exact()8 async fn read_exact() {
9     let mut buf = Box::new([0; 8]);
10     let mut rd: &[u8] = b"hello world";
11 
12     let n = assert_ok!(rd.read_exact(&mut buf[..]).await);
13     assert_eq!(n, 8);
14     assert_eq!(buf[..], b"hello wo"[..]);
15 }
16