gecko-dev/third_party/rust/tokio-tcp/tests/stream-buffered.rs

55 строки
1.3 KiB
Rust

extern crate env_logger;
extern crate futures;
extern crate tokio_tcp;
extern crate tokio_io;
use std::io::{Read, Write};
use std::net::TcpStream;
use std::thread;
use futures::Future;
use futures::stream::Stream;
use tokio_io::io::copy;
use tokio_io::AsyncRead;
use tokio_tcp::TcpListener;
macro_rules! t {
($e:expr) => (match $e {
Ok(e) => e,
Err(e) => panic!("{} failed with {:?}", stringify!($e), e),
})
}
#[test]
fn echo_server() {
drop(env_logger::init());
let srv = t!(TcpListener::bind(&t!("127.0.0.1:0".parse())));
let addr = t!(srv.local_addr());
let t = thread::spawn(move || {
let mut s1 = t!(TcpStream::connect(&addr));
let mut s2 = t!(TcpStream::connect(&addr));
let msg = b"foo";
assert_eq!(t!(s1.write(msg)), msg.len());
assert_eq!(t!(s2.write(msg)), msg.len());
let mut buf = [0; 1024];
assert_eq!(t!(s1.read(&mut buf)), msg.len());
assert_eq!(&buf[..msg.len()], msg);
assert_eq!(t!(s2.read(&mut buf)), msg.len());
assert_eq!(&buf[..msg.len()], msg);
});
let future = srv.incoming()
.map(|s| s.split())
.map(|(a, b)| copy(a, b).map(|_| ()))
.buffered(10)
.take(2)
.collect();
t!(future.wait());
t.join().unwrap();
}