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// Copyright 2018 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 unix_test
import (
"os"
"testing"
"golang.org/x/sys/unix"
)
// stringsFromByteSlice converts a sequence of attributes to a []string.
// On Darwin, each entry is a NULL-terminated string.
func stringsFromByteSlice(buf []byte) []string {
var result []string
off := 0
for i, b := range buf {
if b == 0 {
result = append(result, string(buf[off:i]))
off = i + 1
}
}
return result
}
func TestUtimesNanoAt(t *testing.T) {
defer chtmpdir(t)()
symlink := "symlink1"
os.Remove(symlink)
err := os.Symlink("nonexisting", symlink)
if err != nil {
t.Fatal(err)
}
ts := []unix.Timespec{
{Sec: 1111, Nsec: 2222},
{Sec: 3333, Nsec: 4444},
}
err = unix.UtimesNanoAt(unix.AT_FDCWD, symlink, ts, unix.AT_SYMLINK_NOFOLLOW)
if err != nil {
t.Fatalf("UtimesNanoAt: %v", err)
}
var st unix.Stat_t
err = unix.Lstat(symlink, &st)
if err != nil {
t.Fatalf("Lstat: %v", err)
}
// Only check Mtimespec, Atimespec might not be supported by the underlying filesystem
expected := ts[1]
if st.Mtimespec.Nsec == 0 {
// Some filesystems only support 1-second time stamp resolution
// and will always set Nsec to 0.
expected.Nsec = 0
}
if st.Mtimespec != expected {
t.Errorf("UtimesNanoAt: wrong mtime: got %v, expected %v", st.Mtimespec, expected)
}
}
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