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// Copyright 2011 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 net
import (
"flag"
"runtime"
"testing"
)
var multicast = flag.Bool("multicast", false, "enable multicast tests")
func TestMulticastJoinAndLeave(t *testing.T) {
if runtime.GOOS == "windows" {
return
}
if !*multicast {
t.Logf("test disabled; use --multicast to enable")
return
}
addr := &UDPAddr{
IP: IPv4zero,
Port: 0,
}
// open a UDPConn
conn, err := ListenUDP("udp4", addr)
if err != nil {
t.Fatal(err)
}
defer conn.Close()
// try to join group
mcast := IPv4(224, 0, 0, 254)
err = conn.JoinGroup(mcast)
if err != nil {
t.Fatal(err)
}
// try to leave group
err = conn.LeaveGroup(mcast)
if err != nil {
t.Fatal(err)
}
}
func TestJoinFailureWithIPv6Address(t *testing.T) {
if !*multicast {
t.Logf("test disabled; use --multicast to enable")
return
}
addr := &UDPAddr{
IP: IPv4zero,
Port: 0,
}
// open a UDPConn
conn, err := ListenUDP("udp4", addr)
if err != nil {
t.Fatal(err)
}
defer conn.Close()
// try to join group
mcast := ParseIP("ff02::1")
err = conn.JoinGroup(mcast)
if err == nil {
t.Fatal("JoinGroup succeeded, should fail")
}
t.Logf("%s", err)
}
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