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_io::io::copy;
13 use tokio_io::AsyncRead;
14 use tokio_tcp::TcpListener;
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 t = thread::spawn(move || {
31 let mut s1 = t!(TcpStream::connect(&addr));
32 let mut s2 = t!(TcpStream::connect(&addr));
33
34 let msg = b"foo";
35 assert_eq!(t!(s1.write(msg)), msg.len());
36 assert_eq!(t!(s2.write(msg)), msg.len());
37 let mut buf = [0; 1024];
38 assert_eq!(t!(s1.read(&mut buf)), msg.len());
39 assert_eq!(&buf[..msg.len()], msg);
40 assert_eq!(t!(s2.read(&mut buf)), msg.len());
41 assert_eq!(&buf[..msg.len()], msg);
42 });
43
44 let future = srv.incoming()
45 .map(|s| s.split())
46 .map(|(a, b)| copy(a, b).map(|_| ()))
47 .buffered(10)
48 .take(2)
49 .collect();
50
51 t!(future.wait());
52
53 t.join().unwrap();
54 }
55