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// Copyright 2012 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.
// This file implements API tests across platforms and will never have a build
// tag.
package net
import (
"os"
"runtime"
"strings"
"testing"
"time"
)
func strfunc(s string) func() string {
return func() string {
return s
}
}
func packetConnTestData(t *testing.T, net string, i int) ([]byte, func()) {
switch net {
case "udp":
return []byte("UDP PACKETCONN TEST"), nil
case "ip":
if skip, skipmsg := skipRawSocketTest(t); skip {
return nil, func() {
t.Logf(skipmsg)
}
}
b, err := (&icmpMessage{
Type: icmpv4EchoRequest, Code: 0,
Body: &icmpEcho{
ID: os.Getpid() & 0xffff, Seq: i + 1,
Data: []byte("IP PACKETCONN TEST"),
},
}).Marshal()
if err != nil {
return nil, func() {
t.Fatalf("icmpMessage.Marshal failed: %v", err)
}
}
return b, nil
case "unixgram":
switch runtime.GOOS {
case "plan9", "windows":
return nil, func() {
t.Logf("skipping %q test on %q", net, runtime.GOOS)
}
default:
return []byte("UNIXGRAM PACKETCONN TEST"), nil
}
default:
return nil, func() {
t.Logf("skipping %q test", net)
}
}
}
var packetConnTests = []struct {
net string
addr1 func() string
addr2 func() string
}{
{"udp", strfunc("127.0.0.1:0"), strfunc("127.0.0.1:0")},
{"ip:icmp", strfunc("127.0.0.1"), strfunc("127.0.0.1")},
{"unixgram", testUnixAddr, testUnixAddr},
}
func TestPacketConn(t *testing.T) {
closer := func(c PacketConn, net, addr1, addr2 string) {
c.Close()
switch net {
case "unixgram":
os.Remove(addr1)
os.Remove(addr2)
}
}
for i, tt := range packetConnTests {
netstr := strings.Split(tt.net, ":")
wb, skipOrFatalFn := packetConnTestData(t, netstr[0], i)
if skipOrFatalFn != nil {
skipOrFatalFn()
continue
}
addr1, addr2 := tt.addr1(), tt.addr2()
c1, err := ListenPacket(tt.net, addr1)
if err != nil {
t.Fatalf("ListenPacket failed: %v", err)
}
defer closer(c1, netstr[0], addr1, addr2)
c1.LocalAddr()
c1.SetDeadline(time.Now().Add(100 * time.Millisecond))
c1.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
c1.SetWriteDeadline(time.Now().Add(100 * time.Millisecond))
c2, err := ListenPacket(tt.net, addr2)
if err != nil {
t.Fatalf("ListenPacket failed: %v", err)
}
defer closer(c2, netstr[0], addr1, addr2)
c2.LocalAddr()
c2.SetDeadline(time.Now().Add(100 * time.Millisecond))
c2.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
c2.SetWriteDeadline(time.Now().Add(100 * time.Millisecond))
if _, err := c1.WriteTo(wb, c2.LocalAddr()); err != nil {
t.Fatalf("PacketConn.WriteTo failed: %v", err)
}
rb2 := make([]byte, 128)
if _, _, err := c2.ReadFrom(rb2); err != nil {
t.Fatalf("PacketConn.ReadFrom failed: %v", err)
}
if _, err := c2.WriteTo(wb, c1.LocalAddr()); err != nil {
t.Fatalf("PacketConn.WriteTo failed: %v", err)
}
rb1 := make([]byte, 128)
if _, _, err := c1.ReadFrom(rb1); err != nil {
t.Fatalf("PacketConn.ReadFrom failed: %v", err)
}
}
}
func TestConnAndPacketConn(t *testing.T) {
closer := func(c PacketConn, net, addr1, addr2 string) {
c.Close()
switch net {
case "unixgram":
os.Remove(addr1)
os.Remove(addr2)
}
}
for i, tt := range packetConnTests {
var wb []byte
netstr := strings.Split(tt.net, ":")
wb, skipOrFatalFn := packetConnTestData(t, netstr[0], i)
if skipOrFatalFn != nil {
skipOrFatalFn()
continue
}
addr1, addr2 := tt.addr1(), tt.addr2()
c1, err := ListenPacket(tt.net, addr1)
if err != nil {
t.Fatalf("ListenPacket failed: %v", err)
}
defer closer(c1, netstr[0], addr1, addr2)
c1.LocalAddr()
c1.SetDeadline(time.Now().Add(100 * time.Millisecond))
c1.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
c1.SetWriteDeadline(time.Now().Add(100 * time.Millisecond))
c2, err := Dial(tt.net, c1.LocalAddr().String())
if err != nil {
t.Fatalf("Dial failed: %v", err)
}
defer c2.Close()
c2.LocalAddr()
c2.RemoteAddr()
c2.SetDeadline(time.Now().Add(100 * time.Millisecond))
c2.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
c2.SetWriteDeadline(time.Now().Add(100 * time.Millisecond))
if _, err := c2.Write(wb); err != nil {
t.Fatalf("Conn.Write failed: %v", err)
}
rb1 := make([]byte, 128)
if _, _, err := c1.ReadFrom(rb1); err != nil {
t.Fatalf("PacketConn.ReadFrom failed: %v", err)
}
var dst Addr
switch netstr[0] {
case "ip":
dst = &IPAddr{IP: IPv4(127, 0, 0, 1)}
case "unixgram":
continue
default:
dst = c2.LocalAddr()
}
if _, err := c1.WriteTo(wb, dst); err != nil {
t.Fatalf("PacketConn.WriteTo failed: %v", err)
}
rb2 := make([]byte, 128)
if _, err := c2.Read(rb2); err != nil {
t.Fatalf("Conn.Read failed: %v", err)
}
}
}
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