diff --git a/tests/echo.rs b/tests/echo.rs
new file mode 100644
index 0000000..fc93fc1
--- /dev/null
+++ b/tests/echo.rs
@@ -0,0 +1,75 @@
+extern crate coio;
+
+use std::io::{Read, Write};
+
+use coio::Scheduler;
+use coio::net::{TcpListener, TcpStream, UdpSocket, Shutdown};
+
+#[test]
+fn test_tcp_echo() {
+
+    Scheduler::new().run(move|| {
+        // Listener
+        let listen_fut = Scheduler::spawn(move|| {
+            let acceptor = TcpListener::bind("127.0.0.1:6789").unwrap();
+            let (mut stream, _) = acceptor.accept().unwrap();
+
+            let mut buf = [0u8; 1024];
+            while let Ok(len) = stream.read(&mut buf) {
+                if len == 0 {
+                    // EOF
+                    break;
+                }
+
+                stream.write_all(&buf[..len])
+                      .and_then(|_| stream.flush()).unwrap();
+            }
+        });
+
+        let sender_fut = Scheduler::spawn(move|| {
+            let mut stream = TcpStream::connect("127.0.0.1:6789").unwrap();
+            stream.write_all(b"abcdefg")
+                  .and_then(|_| stream.flush()).unwrap();
+
+            let mut buf = [0u8; 1024];
+            let len = stream.read(&mut buf).unwrap();
+
+            stream.shutdown(Shutdown::Both).unwrap();
+
+            assert_eq!(&buf[..len], b"abcdefg");
+        });
+
+        listen_fut.join().unwrap();
+        sender_fut.join().unwrap();
+    }).unwrap();
+
+}
+
+#[test]
+fn test_udp_echo() {
+
+    Scheduler::new().run(move|| {
+        // Listener
+        let listen_fut = Scheduler::spawn(move|| {
+            let acceptor = UdpSocket::bind("127.0.0.1:6789").unwrap();
+
+            let mut buf = [0u8; 1024];
+            let (len, addr) = acceptor.recv_from(&mut buf).unwrap();
+            acceptor.send_to(&buf[..len], addr).unwrap();
+        });
+
+        let sender_fut = Scheduler::spawn(move|| {
+            let sender = UdpSocket::bind("127.0.0.1:6780").unwrap();
+
+            let mut buf = [0u8; 1024];
+            sender.send_to(b"abcdefg", "127.0.0.1:6789").unwrap();
+            let (len, _) = sender.recv_from(&mut buf).unwrap();
+
+            assert_eq!(&buf[..len], b"abcdefg");
+        });
+
+        listen_fut.join().unwrap();
+        sender_fut.join().unwrap();
+    }).unwrap();
+
+}