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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package websocket
import (
"bytes";
"http";
"io";
"log";
"net";
"once";
"strings";
"testing";
)
var serverAddr string
func echoServer(ws *Conn) { io.Copy(ws, ws) }
func startServer() {
l, e := net.Listen("tcp", ":0"); // any available address
if e != nil {
log.Exitf("net.Listen tcp :0 %v", e)
}
serverAddr = l.Addr().String();
log.Stderr("Test WebSocket server listening on ", serverAddr);
http.Handle("/echo", Handler(echoServer));
go http.Serve(l, nil);
}
func TestEcho(t *testing.T) {
once.Do(startServer);
client, err := net.Dial("tcp", "", serverAddr);
if err != nil {
t.Fatal("dialing", err)
}
ws, err := newClient("/echo", "localhost", "http://localhost",
"ws://localhost/echo", "", client);
if err != nil {
t.Errorf("WebSocket handshake error", err);
return;
}
msg := strings.Bytes("hello, world\n");
if _, err := ws.Write(msg); err != nil {
t.Errorf("Write: error %v", err)
}
var actual_msg = make([]byte, 512);
n, err := ws.Read(actual_msg);
if err != nil {
t.Errorf("Read: error %v", err)
}
actual_msg = actual_msg[0:n];
if !bytes.Equal(msg, actual_msg) {
t.Errorf("Echo: expected %q got %q", msg, actual_msg)
}
ws.Close();
}
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