mirror of
https://github.com/restic/restic.git
synced 2024-08-24 05:07:23 +02:00
228 lines
4.5 KiB
Go
228 lines
4.5 KiB
Go
|
// Copyright 2016 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 linux
|
||
|
|
||
|
package unix_test
|
||
|
|
||
|
import (
|
||
|
"io/ioutil"
|
||
|
"os"
|
||
|
"testing"
|
||
|
"time"
|
||
|
|
||
|
"golang.org/x/sys/unix"
|
||
|
)
|
||
|
|
||
|
func TestFchmodat(t *testing.T) {
|
||
|
defer chtmpdir(t)()
|
||
|
|
||
|
touch(t, "file1")
|
||
|
os.Symlink("file1", "symlink1")
|
||
|
|
||
|
err := unix.Fchmodat(unix.AT_FDCWD, "symlink1", 0444, 0)
|
||
|
if err != nil {
|
||
|
t.Fatalf("Fchmodat: unexpected error: %v", err)
|
||
|
}
|
||
|
|
||
|
fi, err := os.Stat("file1")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if fi.Mode() != 0444 {
|
||
|
t.Errorf("Fchmodat: failed to change mode: expected %v, got %v", 0444, fi.Mode())
|
||
|
}
|
||
|
|
||
|
err = unix.Fchmodat(unix.AT_FDCWD, "symlink1", 0444, unix.AT_SYMLINK_NOFOLLOW)
|
||
|
if err != unix.EOPNOTSUPP {
|
||
|
t.Fatalf("Fchmodat: unexpected error: %v, expected EOPNOTSUPP", err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestIoctlGetInt(t *testing.T) {
|
||
|
f, err := os.Open("/dev/random")
|
||
|
if err != nil {
|
||
|
t.Fatalf("failed to open device: %v", err)
|
||
|
}
|
||
|
defer f.Close()
|
||
|
|
||
|
v, err := unix.IoctlGetInt(int(f.Fd()), unix.RNDGETENTCNT)
|
||
|
if err != nil {
|
||
|
t.Fatalf("failed to perform ioctl: %v", err)
|
||
|
}
|
||
|
|
||
|
t.Logf("%d bits of entropy available", v)
|
||
|
}
|
||
|
|
||
|
func TestPoll(t *testing.T) {
|
||
|
f, cleanup := mktmpfifo(t)
|
||
|
defer cleanup()
|
||
|
|
||
|
const timeout = 100
|
||
|
|
||
|
ok := make(chan bool, 1)
|
||
|
go func() {
|
||
|
select {
|
||
|
case <-time.After(10 * timeout * time.Millisecond):
|
||
|
t.Errorf("Poll: failed to timeout after %d milliseconds", 10*timeout)
|
||
|
case <-ok:
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
|
||
|
n, err := unix.Poll(fds, timeout)
|
||
|
ok <- true
|
||
|
if err != nil {
|
||
|
t.Errorf("Poll: unexpected error: %v", err)
|
||
|
return
|
||
|
}
|
||
|
if n != 0 {
|
||
|
t.Errorf("Poll: wrong number of events: got %v, expected %v", n, 0)
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestPpoll(t *testing.T) {
|
||
|
f, cleanup := mktmpfifo(t)
|
||
|
defer cleanup()
|
||
|
|
||
|
const timeout = 100 * time.Millisecond
|
||
|
|
||
|
ok := make(chan bool, 1)
|
||
|
go func() {
|
||
|
select {
|
||
|
case <-time.After(10 * timeout):
|
||
|
t.Errorf("Ppoll: failed to timeout after %d", 10*timeout)
|
||
|
case <-ok:
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
|
||
|
timeoutTs := unix.NsecToTimespec(int64(timeout))
|
||
|
n, err := unix.Ppoll(fds, &timeoutTs, nil)
|
||
|
ok <- true
|
||
|
if err != nil {
|
||
|
t.Errorf("Ppoll: unexpected error: %v", err)
|
||
|
return
|
||
|
}
|
||
|
if n != 0 {
|
||
|
t.Errorf("Ppoll: wrong number of events: got %v, expected %v", n, 0)
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// mktmpfifo creates a temporary FIFO and provides a cleanup function.
|
||
|
func mktmpfifo(t *testing.T) (*os.File, func()) {
|
||
|
err := unix.Mkfifo("fifo", 0666)
|
||
|
if err != nil {
|
||
|
t.Fatalf("mktmpfifo: failed to create FIFO: %v", err)
|
||
|
}
|
||
|
|
||
|
f, err := os.OpenFile("fifo", os.O_RDWR, 0666)
|
||
|
if err != nil {
|
||
|
os.Remove("fifo")
|
||
|
t.Fatalf("mktmpfifo: failed to open FIFO: %v", err)
|
||
|
}
|
||
|
|
||
|
return f, func() {
|
||
|
f.Close()
|
||
|
os.Remove("fifo")
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestTime(t *testing.T) {
|
||
|
var ut unix.Time_t
|
||
|
ut2, err := unix.Time(&ut)
|
||
|
if err != nil {
|
||
|
t.Fatalf("Time: %v", err)
|
||
|
}
|
||
|
if ut != ut2 {
|
||
|
t.Errorf("Time: return value %v should be equal to argument %v", ut2, ut)
|
||
|
}
|
||
|
|
||
|
var now time.Time
|
||
|
|
||
|
for i := 0; i < 10; i++ {
|
||
|
ut, err = unix.Time(nil)
|
||
|
if err != nil {
|
||
|
t.Fatalf("Time: %v", err)
|
||
|
}
|
||
|
|
||
|
now = time.Now()
|
||
|
|
||
|
if int64(ut) == now.Unix() {
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
|
||
|
t.Errorf("Time: return value %v should be nearly equal to time.Now().Unix() %v", ut, now.Unix())
|
||
|
}
|
||
|
|
||
|
func TestUtime(t *testing.T) {
|
||
|
defer chtmpdir(t)()
|
||
|
|
||
|
touch(t, "file1")
|
||
|
|
||
|
buf := &unix.Utimbuf{
|
||
|
Modtime: 12345,
|
||
|
}
|
||
|
|
||
|
err := unix.Utime("file1", buf)
|
||
|
if err != nil {
|
||
|
t.Fatalf("Utime: %v", err)
|
||
|
}
|
||
|
|
||
|
fi, err := os.Stat("file1")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if fi.ModTime().Unix() != 12345 {
|
||
|
t.Errorf("Utime: failed to change modtime: expected %v, got %v", 12345, fi.ModTime().Unix())
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestGetrlimit(t *testing.T) {
|
||
|
var rlim unix.Rlimit
|
||
|
err := unix.Getrlimit(unix.RLIMIT_AS, &rlim)
|
||
|
if err != nil {
|
||
|
t.Fatalf("Getrlimit: %v", err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// utilities taken from os/os_test.go
|
||
|
|
||
|
func touch(t *testing.T, name string) {
|
||
|
f, err := os.Create(name)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
if err := f.Close(); err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// chtmpdir changes the working directory to a new temporary directory and
|
||
|
// provides a cleanup function. Used when PWD is read-only.
|
||
|
func chtmpdir(t *testing.T) func() {
|
||
|
oldwd, err := os.Getwd()
|
||
|
if err != nil {
|
||
|
t.Fatalf("chtmpdir: %v", err)
|
||
|
}
|
||
|
d, err := ioutil.TempDir("", "test")
|
||
|
if err != nil {
|
||
|
t.Fatalf("chtmpdir: %v", err)
|
||
|
}
|
||
|
if err := os.Chdir(d); err != nil {
|
||
|
t.Fatalf("chtmpdir: %v", err)
|
||
|
}
|
||
|
return func() {
|
||
|
if err := os.Chdir(oldwd); err != nil {
|
||
|
t.Fatalf("chtmpdir: %v", err)
|
||
|
}
|
||
|
os.RemoveAll(d)
|
||
|
}
|
||
|
}
|