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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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