2009-02-06 18:54:26 -07:00
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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2009-08-12 14:18:37 -06:00
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package os_test
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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. "os"
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"strings"
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"testing"
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)
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var dot = []string{
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"dir_darwin.go",
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"dir_linux.go",
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"env.go",
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"error.go",
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"file.go",
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"os_test.go",
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"time.go",
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"types.go",
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"stat_darwin.go",
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"stat_linux.go",
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}
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var etc = []string{
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"group",
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"hosts",
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"passwd",
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}
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2009-03-11 13:51:10 -06:00
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func size(name string, t *testing.T) uint64 {
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file, err := Open(name, O_RDONLY, 0)
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defer file.Close()
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if err != nil {
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t.Fatal("open failed:", err)
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}
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var buf [100]byte
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len := 0
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for {
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n, e := file.Read(&buf)
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len += n
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if e == EOF {
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break
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}
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if e != nil {
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t.Fatal("read failed:", err)
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}
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}
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return uint64(len)
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}
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func TestStat(t *testing.T) {
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dir, err := Stat("/etc/passwd")
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if err != nil {
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t.Fatal("stat failed:", err)
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}
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if dir.Name != "passwd" {
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t.Error("name should be passwd; is", dir.Name)
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}
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filesize := size("/etc/passwd", t)
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if dir.Size != filesize {
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t.Error("size should be", filesize, "; is", dir.Size)
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}
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}
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func TestFstat(t *testing.T) {
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file, err1 := Open("/etc/passwd", O_RDONLY, 0)
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defer file.Close()
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if err1 != nil {
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t.Fatal("open failed:", err1)
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}
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dir, err2 := file.Stat()
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if err2 != nil {
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t.Fatal("fstat failed:", err2)
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}
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if dir.Name != "passwd" {
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t.Error("name should be passwd; is", dir.Name)
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}
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filesize := size("/etc/passwd", t)
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if dir.Size != filesize {
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t.Error("size should be", filesize, "; is", dir.Size)
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}
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}
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func TestLstat(t *testing.T) {
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dir, err := Lstat("/etc/passwd")
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if err != nil {
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t.Fatal("lstat failed:", err)
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}
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if dir.Name != "passwd" {
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t.Error("name should be passwd; is", dir.Name)
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}
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filesize := size("/etc/passwd", t)
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if dir.Size != filesize {
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t.Error("size should be", filesize, "; is", dir.Size)
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}
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}
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func testReaddirnames(dir string, contents []string, t *testing.T) {
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file, err := Open(dir, O_RDONLY, 0)
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defer file.Close()
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if err != nil {
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t.Fatalf("open %q failed: %v", dir, err)
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}
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s, err2 := file.Readdirnames(-1)
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if err2 != nil {
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t.Fatalf("readdirnames %q failed: %v", err2)
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}
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for _, m := range contents {
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found := false
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for _, n := range s {
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if n == "." || n == ".." {
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t.Errorf("got %s in directory", n)
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}
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if m == n {
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if found {
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t.Error("present twice:", m)
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}
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found = true
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}
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}
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if !found {
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t.Error("could not find", m)
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}
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}
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}
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func testReaddir(dir string, contents []string, t *testing.T) {
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file, err := Open(dir, O_RDONLY, 0)
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defer file.Close()
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if err != nil {
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t.Fatalf("open %q failed: %v", dir, err)
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}
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s, err2 := file.Readdir(-1)
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if err2 != nil {
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t.Fatalf("readdir %q failed: %v", dir, err2)
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}
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for _, m := range contents {
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found := false
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for _, n := range s {
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if m == n.Name {
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if found {
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t.Error("present twice:", m)
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}
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found = true
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}
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}
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if !found {
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t.Error("could not find", m)
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}
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}
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}
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func TestReaddirnames(t *testing.T) {
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testReaddirnames(".", dot, t)
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testReaddirnames("/etc", etc, t)
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}
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func TestReaddir(t *testing.T) {
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testReaddir(".", dot, t)
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testReaddir("/etc", etc, t)
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}
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// Read the directory one entry at a time.
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func smallReaddirnames(file *File, length int, t *testing.T) []string {
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names := make([]string, length)
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count := 0
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for {
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d, err := file.Readdirnames(1)
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if err != nil {
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t.Fatalf("readdir %q failed: %v", file.Name(), err)
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}
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if len(d) == 0 {
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break
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}
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names[count] = d[0]
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count++
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}
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return names[0:count]
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}
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// Check that reading a directory one entry at a time gives the same result
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// as reading it all at once.
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func TestReaddirnamesOneAtATime(t *testing.T) {
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dir := "/usr/bin" // big directory that doesn't change often.
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file, err := Open(dir, O_RDONLY, 0)
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defer file.Close()
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if err != nil {
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t.Fatalf("open %q failed: %v", dir, err)
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}
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all, err1 := file.Readdirnames(-1)
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if err1 != nil {
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t.Fatalf("readdirnames %q failed: %v", dir, err1)
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}
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file1, err2 := Open(dir, O_RDONLY, 0)
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if err2 != nil {
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t.Fatalf("open %q failed: %v", dir, err2)
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}
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small := smallReaddirnames(file1, len(all)+100, t) // +100 in case we screw up
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for i, n := range all {
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if small[i] != n {
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t.Errorf("small read %q %q mismatch: %v", small[i], n)
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}
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}
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}
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func TestHardLink(t *testing.T) {
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from, to := "hardlinktestfrom", "hardlinktestto"
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Remove(from) // Just in case.
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file, err := Open(to, O_CREAT|O_WRONLY, 0666)
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if err != nil {
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t.Fatalf("open %q failed: %v", to, err)
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}
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defer Remove(to)
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if err = file.Close(); err != nil {
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t.Errorf("close %q failed: %v", to, err)
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}
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err = Link(to, from)
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if err != nil {
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t.Fatalf("link %q, %q failed: %v", to, from, err)
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}
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defer Remove(from)
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tostat, err := Stat(to)
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if err != nil {
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t.Fatalf("stat %q failed: %v", to, err)
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}
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fromstat, err := Stat(from)
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if err != nil {
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t.Fatalf("stat %q failed: %v", from, err)
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}
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if tostat.Dev != fromstat.Dev || tostat.Ino != fromstat.Ino {
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t.Errorf("link %q, %q did not create hard link", to, from)
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}
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}
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func TestSymLink(t *testing.T) {
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from, to := "symlinktestfrom", "symlinktestto"
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Remove(from) // Just in case.
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file, err := Open(to, O_CREAT|O_WRONLY, 0666)
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if err != nil {
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t.Fatalf("open %q failed: %v", to, err)
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}
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defer Remove(to)
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if err = file.Close(); err != nil {
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t.Errorf("close %q failed: %v", to, err)
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}
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err = Symlink(to, from)
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if err != nil {
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t.Fatalf("symlink %q, %q failed: %v", to, from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
defer Remove(from)
|
|
|
|
tostat, err := Stat(to)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("stat %q failed: %v", to, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-05-15 12:04:49 -06:00
|
|
|
if tostat.FollowedSymlink {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("stat %q claims to have followed a symlink", to)
|
2009-05-15 12:04:49 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
fromstat, err := Stat(from)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("stat %q failed: %v", from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
|
|
|
if tostat.Dev != fromstat.Dev || tostat.Ino != fromstat.Ino {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("symlink %q, %q did not create symlink", to, from)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
fromstat, err = Lstat(from)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("lstat %q failed: %v", from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
|
|
|
if !fromstat.IsSymlink() {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("symlink %q, %q did not create symlink", to, from)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
fromstat, err = Stat(from)
|
2009-05-15 12:04:49 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("stat %q failed: %v", from, err)
|
2009-05-15 12:04:49 -06:00
|
|
|
}
|
|
|
|
if !fromstat.FollowedSymlink {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("stat %q did not follow symlink")
|
2009-05-15 12:04:49 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
s, err := Readlink(from)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("readlink %q failed: %v", from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
|
|
|
if s != to {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("after symlink %q != %q", s, to)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
file, err = Open(from, O_RDONLY, 0)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("open %q failed: %v", from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
file.Close()
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
func TestLongSymlink(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
s := "0123456789abcdef"
|
2009-11-11 15:52:29 -07:00
|
|
|
// Long, but not too long: a common limit is 255.
|
2009-12-15 16:40:16 -07:00
|
|
|
s = s + s + s + s + s + s + s + s + s + s + s + s + s + s + s
|
|
|
|
from := "longsymlinktestfrom"
|
|
|
|
err := Symlink(s, from)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("symlink %q, %q failed: %v", s, from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
defer Remove(from)
|
|
|
|
r, err := Readlink(from)
|
2009-05-13 11:16:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("readlink %q failed: %v", from, err)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
|
|
|
if r != s {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("after symlink %q != %q", r, s)
|
2009-05-13 11:16:46 -06:00
|
|
|
}
|
|
|
|
}
|
2009-05-15 11:32:05 -06:00
|
|
|
|
2009-12-04 12:46:56 -07:00
|
|
|
func TestRename(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
from, to := "renamefrom", "renameto"
|
|
|
|
Remove(to) // Just in case.
|
|
|
|
file, err := Open(from, O_CREAT|O_WRONLY, 0666)
|
2009-12-04 12:46:56 -07:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("open %q failed: %v", to, err)
|
|
|
|
}
|
|
|
|
if err = file.Close(); err != nil {
|
|
|
|
t.Errorf("close %q failed: %v", to, err)
|
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
err = Rename(from, to)
|
2009-12-04 12:46:56 -07:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("rename %q, %q failed: %v", to, from, err)
|
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
defer Remove(to)
|
|
|
|
_, err = Stat(to)
|
2009-12-04 12:46:56 -07:00
|
|
|
if err != nil {
|
|
|
|
t.Errorf("stat %q failed: %v", to, err)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-05-15 11:32:05 -06:00
|
|
|
func TestForkExec(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
r, w, err := Pipe()
|
2009-05-15 11:32:05 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("Pipe: %v", err)
|
2009-05-15 11:32:05 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
pid, err := ForkExec("/bin/pwd", []string{"pwd"}, nil, "/", []*File{nil, w, Stderr})
|
2009-05-15 11:32:05 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("ForkExec: %v", err)
|
2009-05-15 11:32:05 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
w.Close()
|
2009-05-15 11:32:05 -06:00
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
var b bytes.Buffer
|
|
|
|
io.Copy(&b, r)
|
|
|
|
output := b.String()
|
|
|
|
expect := "/\n"
|
2009-05-15 11:32:05 -06:00
|
|
|
if output != expect {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("exec /bin/pwd returned %q wanted %q", output, expect)
|
2009-05-15 11:32:05 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
Wait(pid, 0)
|
2009-05-15 11:32:05 -06:00
|
|
|
}
|
2009-05-15 15:11:24 -06:00
|
|
|
|
|
|
|
func checkMode(t *testing.T, path string, mode uint32) {
|
2009-12-15 16:40:16 -07:00
|
|
|
dir, err := Stat(path)
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("Stat %q (looking for mode %#o): %s", path, mode, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-11-09 22:23:52 -07:00
|
|
|
if dir.Mode&0777 != mode {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Stat %q: mode %#o want %#o", path, dir.Mode, 0777)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestChmod(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
MkdirAll("_obj", 0777)
|
|
|
|
const Path = "_obj/_TestChmod_"
|
|
|
|
fd, err := Open(Path, O_WRONLY|O_CREAT, 0666)
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("create %s: %s", Path, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
|
2009-05-18 11:49:34 -06:00
|
|
|
if err = Chmod(Path, 0456); err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("chmod %s 0456: %s", Path, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
checkMode(t, Path, 0456)
|
2009-05-15 15:11:24 -06:00
|
|
|
|
|
|
|
if err = fd.Chmod(0123); err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("fchmod %s 0123: %s", Path, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
checkMode(t, Path, 0123)
|
2009-05-15 15:11:24 -06:00
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
fd.Close()
|
|
|
|
Remove(Path)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
func checkUidGid(t *testing.T, path string, uid, gid int) {
|
2009-12-15 16:40:16 -07:00
|
|
|
dir, err := Stat(path)
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("Stat %q (looking for uid/gid %d/%d): %s", path, uid, gid, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
if dir.Uid != uint32(uid) {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Stat %q: uid %d want %d", path, dir.Uid, uid)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
if dir.Gid != uint32(gid) {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Stat %q: gid %d want %d", path, dir.Gid, gid)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestChown(t *testing.T) {
|
|
|
|
// Use /tmp, not _obj, to make sure we're on a local file system,
|
|
|
|
// so that the group ids returned by Getgroups will be allowed
|
|
|
|
// on the file. If _obj is on NFS, the Getgroups groups are
|
|
|
|
// basically useless.
|
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
const Path = "/tmp/_TestChown_"
|
|
|
|
fd, err := Open(Path, O_WRONLY|O_CREAT, 0666)
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("create %s: %s", Path, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
dir, err := fd.Stat()
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("fstat %s: %s", Path, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
defer fd.Close()
|
|
|
|
defer Remove(Path)
|
2009-05-15 15:11:24 -06:00
|
|
|
|
|
|
|
// Can't change uid unless root, but can try
|
|
|
|
// changing the group id. First try our current group.
|
2009-12-15 16:40:16 -07:00
|
|
|
gid := Getgid()
|
|
|
|
t.Log("gid:", gid)
|
2009-05-18 11:49:34 -06:00
|
|
|
if err = Chown(Path, -1, gid); err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("chown %s -1 %d: %s", Path, gid, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
checkUidGid(t, Path, int(dir.Uid), gid)
|
2009-05-15 15:11:24 -06:00
|
|
|
|
|
|
|
// Then try all the auxiliary groups.
|
2009-12-15 16:40:16 -07:00
|
|
|
groups, err := Getgroups()
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("getgroups: %s", err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
t.Log("groups: ", groups)
|
2009-09-15 10:41:59 -06:00
|
|
|
for _, g := range groups {
|
2009-05-18 11:49:34 -06:00
|
|
|
if err = Chown(Path, -1, g); err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("chown %s -1 %d: %s", Path, g, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
checkUidGid(t, Path, int(dir.Uid), g)
|
2009-05-15 15:11:24 -06:00
|
|
|
|
|
|
|
// change back to gid to test fd.Chown
|
|
|
|
if err = fd.Chown(-1, gid); err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("fchown %s -1 %d: %s", Path, gid, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
checkUidGid(t, Path, int(dir.Uid), gid)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func checkSize(t *testing.T, path string, size uint64) {
|
2009-12-15 16:40:16 -07:00
|
|
|
dir, err := Stat(path)
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("Stat %q (looking for size %d): %s", path, size, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
if dir.Size != size {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Stat %q: size %d want %d", path, dir.Size, size)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestTruncate(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
MkdirAll("_obj", 0777)
|
|
|
|
const Path = "_obj/_TestTruncate_"
|
|
|
|
fd, err := Open(Path, O_WRONLY|O_CREAT, 0666)
|
2009-05-15 15:11:24 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("create %s: %s", Path, err)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
checkSize(t, Path, 0)
|
|
|
|
fd.Write(strings.Bytes("hello, world\n"))
|
|
|
|
checkSize(t, Path, 13)
|
|
|
|
fd.Truncate(10)
|
|
|
|
checkSize(t, Path, 10)
|
|
|
|
fd.Truncate(1024)
|
|
|
|
checkSize(t, Path, 1024)
|
|
|
|
fd.Truncate(0)
|
|
|
|
checkSize(t, Path, 0)
|
|
|
|
fd.Write(strings.Bytes("surprise!"))
|
|
|
|
checkSize(t, Path, 13+9) // wrote at offset past where hello, world was.
|
|
|
|
fd.Close()
|
|
|
|
Remove(Path)
|
2009-05-15 15:11:24 -06:00
|
|
|
}
|
2009-05-18 11:49:34 -06:00
|
|
|
|
|
|
|
func TestChdirAndGetwd(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
fd, err := Open(".", O_RDONLY, 0)
|
2009-05-18 11:49:34 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("Open .: %s", err)
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
|
|
|
// These are chosen carefully not to be symlinks on a Mac
|
|
|
|
// (unlike, say, /var, /etc, and /tmp).
|
2009-12-15 16:40:16 -07:00
|
|
|
dirs := []string{"/bin", "/", "/usr/bin"}
|
2009-05-18 11:49:34 -06:00
|
|
|
for mode := 0; mode < 2; mode++ {
|
2009-09-15 10:41:59 -06:00
|
|
|
for _, d := range dirs {
|
2009-05-18 11:49:34 -06:00
|
|
|
if mode == 0 {
|
2009-11-09 13:07:39 -07:00
|
|
|
err = Chdir(d)
|
2009-05-18 11:49:34 -06:00
|
|
|
} else {
|
2009-12-15 16:40:16 -07:00
|
|
|
fd1, err := Open(d, O_RDONLY, 0)
|
2009-05-18 11:49:34 -06:00
|
|
|
if err != nil {
|
2009-12-15 16:40:16 -07:00
|
|
|
t.Errorf("Open %s: %s", d, err)
|
|
|
|
continue
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
err = fd1.Chdir()
|
|
|
|
fd1.Close()
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
pwd, err1 := Getwd()
|
|
|
|
err2 := fd.Chdir()
|
2009-05-18 11:49:34 -06:00
|
|
|
if err2 != nil {
|
|
|
|
// We changed the current directory and cannot go back.
|
|
|
|
// Don't let the tests continue; they'll scribble
|
|
|
|
// all over some other directory.
|
2009-12-15 16:40:16 -07:00
|
|
|
fmt.Fprintf(Stderr, "fchdir back to dot failed: %s\n", err2)
|
|
|
|
Exit(1)
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
|
|
|
if err != nil {
|
2009-12-15 16:40:16 -07:00
|
|
|
fd.Close()
|
|
|
|
t.Fatalf("Chdir %s: %s", d, err)
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
|
|
|
if err1 != nil {
|
2009-12-15 16:40:16 -07:00
|
|
|
fd.Close()
|
|
|
|
t.Fatalf("Getwd in %s: %s", d, err1)
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
|
|
|
if pwd != d {
|
2009-12-15 16:40:16 -07:00
|
|
|
fd.Close()
|
|
|
|
t.Fatalf("Getwd returned %q want %q", pwd, d)
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
fd.Close()
|
2009-05-18 11:49:34 -06:00
|
|
|
}
|
2009-06-03 00:02:20 -06:00
|
|
|
|
|
|
|
func TestTime(t *testing.T) {
|
|
|
|
// Just want to check that Time() is getting something.
|
|
|
|
// A common failure mode on Darwin is to get 0, 0,
|
|
|
|
// because it returns the time in registers instead of
|
|
|
|
// filling in the structure passed to the system call.
|
2009-11-08 22:08:27 -07:00
|
|
|
// Too bad the compiler doesn't know that
|
2009-06-03 00:02:20 -06:00
|
|
|
// 365.24*86400 is an integer.
|
2009-12-15 16:40:16 -07:00
|
|
|
sec, nsec, err := Time()
|
2009-06-03 00:02:20 -06:00
|
|
|
if sec < (2009-1970)*36524*864 {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Time() = %d, %d, %s; not plausible", sec, nsec, err)
|
2009-06-03 00:02:20 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-06-08 23:10:48 -06:00
|
|
|
func TestSeek(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
f, err := Open("_obj/seektest", O_CREAT|O_RDWR|O_TRUNC, 0666)
|
2009-06-08 23:10:48 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("open _obj/seektest: %s", err)
|
2009-06-08 23:10:48 -06:00
|
|
|
}
|
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
const data = "hello, world\n"
|
|
|
|
io.WriteString(f, data)
|
2009-06-08 23:10:48 -06:00
|
|
|
|
|
|
|
type test struct {
|
2009-12-15 16:40:16 -07:00
|
|
|
in int64
|
|
|
|
whence int
|
|
|
|
out int64
|
2009-10-06 20:40:35 -06:00
|
|
|
}
|
|
|
|
var tests = []test{
|
|
|
|
test{0, 1, int64(len(data))},
|
|
|
|
test{0, 0, 0},
|
|
|
|
test{5, 0, 5},
|
|
|
|
test{0, 2, int64(len(data))},
|
|
|
|
test{0, 0, 0},
|
2009-11-09 22:23:52 -07:00
|
|
|
test{-1, 2, int64(len(data)) - 1},
|
2009-11-12 15:55:04 -07:00
|
|
|
test{1 << 33, 0, 1 << 33},
|
|
|
|
test{1 << 33, 2, 1<<33 + int64(len(data))},
|
2009-12-15 16:40:16 -07:00
|
|
|
}
|
2009-06-08 23:10:48 -06:00
|
|
|
for i, tt := range tests {
|
2009-12-15 16:40:16 -07:00
|
|
|
off, err := f.Seek(tt.in, tt.whence)
|
2009-06-08 23:10:48 -06:00
|
|
|
if off != tt.out || err != nil {
|
2009-11-12 15:55:04 -07:00
|
|
|
if e, ok := err.(*PathError); ok && e.Error == EINVAL && tt.out > 1<<32 {
|
|
|
|
// Reiserfs rejects the big seeks.
|
|
|
|
// http://code.google.com/p/go/issues/detail?id=91
|
|
|
|
break
|
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
t.Errorf("#%d: Seek(%v, %v) = %v, %v want %v, nil", i, tt.in, tt.whence, off, err, tt.out)
|
2009-06-08 23:10:48 -06:00
|
|
|
}
|
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
f.Close()
|
2009-06-08 23:10:48 -06:00
|
|
|
}
|
2009-06-25 21:24:55 -06:00
|
|
|
|
|
|
|
type openErrorTest struct {
|
2009-12-15 16:40:16 -07:00
|
|
|
path string
|
|
|
|
mode int
|
|
|
|
error string
|
2009-06-25 21:24:55 -06:00
|
|
|
}
|
|
|
|
|
2009-10-06 20:40:35 -06:00
|
|
|
var openErrorTests = []openErrorTest{
|
|
|
|
openErrorTest{
|
2009-06-25 21:24:55 -06:00
|
|
|
"/etc/no-such-file",
|
|
|
|
O_RDONLY,
|
|
|
|
"open /etc/no-such-file: no such file or directory",
|
|
|
|
},
|
2009-10-06 20:40:35 -06:00
|
|
|
openErrorTest{
|
2009-06-25 21:24:55 -06:00
|
|
|
"/etc",
|
|
|
|
O_WRONLY,
|
|
|
|
"open /etc: is a directory",
|
|
|
|
},
|
2009-10-06 20:40:35 -06:00
|
|
|
openErrorTest{
|
2009-06-25 21:24:55 -06:00
|
|
|
"/etc/passwd/group",
|
|
|
|
O_WRONLY,
|
|
|
|
"open /etc/passwd/group: not a directory",
|
|
|
|
},
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestOpenError(t *testing.T) {
|
2009-09-15 10:41:59 -06:00
|
|
|
for _, tt := range openErrorTests {
|
2009-12-15 16:40:16 -07:00
|
|
|
f, err := Open(tt.path, tt.mode, 0)
|
2009-06-25 21:24:55 -06:00
|
|
|
if err == nil {
|
2009-12-15 16:40:16 -07:00
|
|
|
t.Errorf("Open(%q, %d) succeeded", tt.path, tt.mode)
|
|
|
|
f.Close()
|
|
|
|
continue
|
2009-06-25 21:24:55 -06:00
|
|
|
}
|
|
|
|
if s := err.String(); s != tt.error {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Open(%q, %d) = _, %q; want %q", tt.path, tt.mode, s, tt.error)
|
2009-06-25 21:24:55 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2009-06-29 14:44:46 -06:00
|
|
|
|
|
|
|
func run(t *testing.T, cmd []string) string {
|
|
|
|
// Run /bin/hostname and collect output.
|
2009-12-15 16:40:16 -07:00
|
|
|
r, w, err := Pipe()
|
2009-06-29 14:44:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatal(err)
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
pid, err := ForkExec("/bin/hostname", []string{"hostname"}, nil, "/", []*File{nil, w, Stderr})
|
2009-06-29 14:44:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatal(err)
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
w.Close()
|
2009-06-29 14:44:46 -06:00
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
var b bytes.Buffer
|
|
|
|
io.Copy(&b, r)
|
|
|
|
Wait(pid, 0)
|
|
|
|
output := b.String()
|
2009-06-29 14:44:46 -06:00
|
|
|
if n := len(output); n > 0 && output[n-1] == '\n' {
|
2009-11-09 13:07:39 -07:00
|
|
|
output = output[0 : n-1]
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
|
|
|
if output == "" {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("%v produced no output", cmd)
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
return output
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func TestHostname(t *testing.T) {
|
|
|
|
// Check internal Hostname() against the output of /bin/hostname.
|
2009-12-15 16:40:16 -07:00
|
|
|
hostname, err := Hostname()
|
2009-06-29 14:44:46 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("%v", err)
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
want := run(t, []string{"/bin/hostname"})
|
2009-06-29 14:44:46 -06:00
|
|
|
if hostname != want {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Errorf("Hostname() = %q, want %q", hostname, want)
|
2009-06-29 14:44:46 -06:00
|
|
|
}
|
|
|
|
}
|
2009-08-27 19:36:45 -06:00
|
|
|
|
|
|
|
func TestReadAt(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
f, err := Open("_obj/readtest", O_CREAT|O_RDWR|O_TRUNC, 0666)
|
2009-08-27 19:36:45 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("open _obj/readtest: %s", err)
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
const data = "hello, world\n"
|
|
|
|
io.WriteString(f, data)
|
2009-08-27 19:36:45 -06:00
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
b := make([]byte, 5)
|
|
|
|
n, err := f.ReadAt(b, 7)
|
2009-08-27 19:36:45 -06:00
|
|
|
if err != nil || n != len(b) {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("ReadAt 7: %d, %r", n, err)
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
|
|
|
if string(b) != "world" {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("ReadAt 7: have %q want %q", string(b), "world")
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestWriteAt(t *testing.T) {
|
2009-12-15 16:40:16 -07:00
|
|
|
f, err := Open("_obj/writetest", O_CREAT|O_RDWR|O_TRUNC, 0666)
|
2009-08-27 19:36:45 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("open _obj/writetest: %s", err)
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
2009-12-15 16:40:16 -07:00
|
|
|
const data = "hello, world\n"
|
|
|
|
io.WriteString(f, data)
|
2009-08-27 19:36:45 -06:00
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
n, err := f.WriteAt(strings.Bytes("WORLD"), 7)
|
2009-08-27 19:36:45 -06:00
|
|
|
if err != nil || n != 5 {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("WriteAt 7: %d, %v", n, err)
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
|
|
|
|
2009-12-15 16:40:16 -07:00
|
|
|
b, err := ioutil.ReadFile("_obj/writetest")
|
2009-08-27 19:36:45 -06:00
|
|
|
if err != nil {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("ReadFile _obj/writetest: %v", err)
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
|
|
|
if string(b) != "hello, WORLD\n" {
|
2009-11-09 13:07:39 -07:00
|
|
|
t.Fatalf("after write: have %q want %q", string(b), "hello, WORLD\n")
|
2009-08-27 19:36:45 -06:00
|
|
|
}
|
|
|
|
}
|