forked from mirrors/gecko-dev
50 lines
1.3 KiB
Rust
50 lines
1.3 KiB
Rust
#![warn(rust_2018_idioms)]
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#![cfg(all(feature = "full", not(tokio_wasi)))] // Wasi does not support bind()
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use tokio::net::TcpListener;
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use tokio_test::assert_ok;
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use std::io::prelude::*;
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use std::net::TcpStream;
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use std::thread;
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#[tokio::test]
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async fn echo_server() {
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const N: usize = 1024;
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let srv = assert_ok!(TcpListener::bind("127.0.0.1:0").await);
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let addr = assert_ok!(srv.local_addr());
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let msg = "foo bar baz";
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let t = thread::spawn(move || {
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let mut s = assert_ok!(TcpStream::connect(addr));
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let t2 = thread::spawn(move || {
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let mut s = assert_ok!(TcpStream::connect(addr));
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let mut b = vec![0; msg.len() * N];
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assert_ok!(s.read_exact(&mut b));
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b
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});
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let mut expected = Vec::<u8>::new();
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for _i in 0..N {
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expected.extend(msg.as_bytes());
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let res = assert_ok!(s.write(msg.as_bytes()));
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assert_eq!(res, msg.len());
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}
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(expected, t2)
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});
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let (mut a, _) = assert_ok!(srv.accept().await);
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let (mut b, _) = assert_ok!(srv.accept().await);
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let n = assert_ok!(tokio::io::copy(&mut a, &mut b).await);
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let (expected, t2) = t.join().unwrap();
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let actual = t2.join().unwrap();
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assert!(expected == actual);
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assert_eq!(n, msg.len() as u64 * 1024);
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}
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