1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/rust/tokio-tcp/tests/stream-buffered.rs b/third_party/rust/tokio-tcp/tests/stream-buffered.rs
new file mode 100644
index 0000000000..a6d71298dc
--- /dev/null
+++ b/third_party/rust/tokio-tcp/tests/stream-buffered.rs
@@ -0,0 +1,54 @@
+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();
+}