1 extern crate env_logger;
2 extern crate futures;
3 extern crate tokio_tcp;
4 extern crate tokio_io;
5
6 use std::io::{Read, Write};
7 use std::net::TcpStream;
8 use std::thread;
9
10 use futures::Future;
11 use futures::stream::Stream;
12 use tokio_tcp::TcpListener;
13 use tokio_io::AsyncRead;
14 use tokio_io::io::copy;
15
16 macro_rules! t {
17 ($e:expr) => (match $e {
18 Ok(e) => e,
19 Err(e) => panic!("{} failed with {:?}", stringify!($e), e),
20 })
21 }
22
23 #[test]
echo_server()24 fn echo_server() {
25 drop(env_logger::init());
26
27 let srv = t!(TcpListener::bind(&t!("127.0.0.1:0".parse())));
28 let addr = t!(srv.local_addr());
29
30 let msg = "foo bar baz";
31 let t = thread::spawn(move || {
32 let mut s = TcpStream::connect(&addr).unwrap();
33
34 for _i in 0..1024 {
35 assert_eq!(t!(s.write(msg.as_bytes())), msg.len());
36 let mut buf = [0; 1024];
37 assert_eq!(t!(s.read(&mut buf)), msg.len());
38 assert_eq!(&buf[..msg.len()], msg.as_bytes());
39 }
40 });
41
42 let clients = srv.incoming();
43 let client = clients.into_future().map(|e| e.0.unwrap()).map_err(|e| e.0);
44 let halves = client.map(|s| s.split());
45 let copied = halves.and_then(|(a, b)| copy(a, b));
46
47 let (amt, _, _) = t!(copied.wait());
48 t.join().unwrap();
49
50 assert_eq!(amt, msg.len() as u64 * 1024);
51 }
52