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// Copyright 2013 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.
// +build darwin dragonfly freebsd linux netbsd openbsd
package net
import (
"os"
"os/exec"
"runtime"
"testing"
"time"
)
type testInterface struct {
name string
local string
remote string
setupCmds []*exec.Cmd
teardownCmds []*exec.Cmd
}
func (ti *testInterface) setup() error {
for _, cmd := range ti.setupCmds {
if err := cmd.Run(); err != nil {
return err
}
}
return nil
}
func (ti *testInterface) teardown() error {
for _, cmd := range ti.teardownCmds {
if err := cmd.Run(); err != nil {
return err
}
}
return nil
}
func TestPointToPointInterface(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode")
}
switch {
case runtime.GOOS == "darwin":
t.Skipf("skipping read test on %q", runtime.GOOS)
}
if os.Getuid() != 0 {
t.Skip("skipping test; must be root")
}
local, remote := "169.254.0.1", "169.254.0.254"
ip := ParseIP(remote)
for i := 0; i < 3; i++ {
ti := &testInterface{}
if err := ti.setPointToPoint(5963+i, local, remote); err != nil {
t.Skipf("test requries external command: %v", err)
}
if err := ti.setup(); err != nil {
t.Fatalf("testInterface.setup failed: %v", err)
} else {
time.Sleep(3 * time.Millisecond)
}
ift, err := Interfaces()
if err != nil {
ti.teardown()
t.Fatalf("Interfaces failed: %v", err)
}
for _, ifi := range ift {
if ti.name == ifi.Name {
ifat, err := ifi.Addrs()
if err != nil {
ti.teardown()
t.Fatalf("Interface.Addrs failed: %v", err)
}
for _, ifa := range ifat {
if ip.Equal(ifa.(*IPNet).IP) {
ti.teardown()
t.Fatalf("got %v; want %v", ip, local)
}
}
}
}
if err := ti.teardown(); err != nil {
t.Fatalf("testInterface.teardown failed: %v", err)
} else {
time.Sleep(3 * time.Millisecond)
}
}
}
func TestInterfaceArrivalAndDeparture(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode")
}
if os.Getuid() != 0 {
t.Skip("skipping test; must be root")
}
for i := 0; i < 3; i++ {
ift1, err := Interfaces()
if err != nil {
t.Fatalf("Interfaces failed: %v", err)
}
ti := &testInterface{}
if err := ti.setBroadcast(5682 + i); err != nil {
t.Skipf("test requires external command: %v", err)
}
if err := ti.setup(); err != nil {
t.Fatalf("testInterface.setup failed: %v", err)
} else {
time.Sleep(3 * time.Millisecond)
}
ift2, err := Interfaces()
if err != nil {
ti.teardown()
t.Fatalf("Interfaces failed: %v", err)
}
if len(ift2) <= len(ift1) {
for _, ifi := range ift1 {
t.Logf("before: %v", ifi)
}
for _, ifi := range ift2 {
t.Logf("after: %v", ifi)
}
ti.teardown()
t.Fatalf("got %v; want gt %v", len(ift2), len(ift1))
}
if err := ti.teardown(); err != nil {
t.Fatalf("testInterface.teardown failed: %v", err)
} else {
time.Sleep(3 * time.Millisecond)
}
ift3, err := Interfaces()
if err != nil {
t.Fatalf("Interfaces failed: %v", err)
}
if len(ift3) >= len(ift2) {
for _, ifi := range ift2 {
t.Logf("before: %v", ifi)
}
for _, ifi := range ift3 {
t.Logf("after: %v", ifi)
}
t.Fatalf("got %v; want lt %v", len(ift3), len(ift2))
}
}
}
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