forked from mirrors/gecko-dev
42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
#![warn(rust_2018_idioms)]
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#![cfg(all(feature = "full", not(tokio_wasi)))] // Wasi doesn't support bind
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use tokio::io::{self, AsyncReadExt, AsyncWriteExt};
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use tokio::net::{TcpListener, TcpStream};
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use tokio::sync::oneshot;
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use tokio_test::assert_ok;
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#[tokio::test]
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async fn echo_server() {
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const ITER: usize = 1024;
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let (tx, rx) = oneshot::channel();
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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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tokio::spawn(async move {
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let mut stream = assert_ok!(TcpStream::connect(&addr).await);
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for _ in 0..ITER {
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// write
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assert_ok!(stream.write_all(msg.as_bytes()).await);
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// read
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let mut buf = [0; 11];
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assert_ok!(stream.read_exact(&mut buf).await);
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assert_eq!(&buf[..], msg.as_bytes());
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}
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assert_ok!(tx.send(()));
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});
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let (mut stream, _) = assert_ok!(srv.accept().await);
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let (mut rd, mut wr) = stream.split();
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let n = assert_ok!(io::copy(&mut rd, &mut wr).await);
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assert_eq!(n, (ITER * msg.len()) as u64);
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assert_ok!(rx.await);
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}
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