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