Add Go frontend, libgo library, and Go testsuite.
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
This commit is contained in:
Ian Lance Taylor
parent
1aa6700378
commit
7a9389330e
1565 changed files with 351565 additions and 12 deletions
883
libgo/go/os/os_test.go
Normal file
883
libgo/go/os/os_test.go
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@ -0,0 +1,883 @@
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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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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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"syscall"
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"testing"
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)
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var dot = []string{
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"env_unix.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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}
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type sysDir struct {
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name string
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files []string
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}
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var sysdir = func() (sd *sysDir) {
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switch syscall.OS {
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case "windows":
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sd = &sysDir{
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Getenv("SystemRoot") + "\\system32\\drivers\\etc",
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[]string{
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"hosts",
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"networks",
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"protocol",
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"services",
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},
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}
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default:
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sd = &sysDir{
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"/etc",
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[]string{
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"group",
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"hosts",
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"passwd",
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},
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}
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}
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return
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}()
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func size(name string, t *testing.T) int64 {
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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[0:])
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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 int64(len)
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}
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func equal(name1, name2 string) (r bool) {
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switch syscall.OS {
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case "windows":
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r = strings.ToLower(name1) == strings.ToLower(name2)
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default:
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r = name1 == name2
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}
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return
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}
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func newFile(testName string, t *testing.T) (f *File) {
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// Use a local file system, not NFS.
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// On Unix, override $TMPDIR in case the user
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// has it set to an NFS-mounted directory.
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dir := ""
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if syscall.OS != "windows" {
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dir = "/tmp"
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}
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f, err := ioutil.TempFile(dir, "_Go_"+testName)
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if err != nil {
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t.Fatalf("open %s: %s", testName, err)
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}
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return
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}
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var sfdir = sysdir.name
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var sfname = sysdir.files[0]
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func TestStat(t *testing.T) {
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path := sfdir + "/" + sfname
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dir, err := Stat(path)
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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 !equal(sfname, dir.Name) {
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t.Error("name should be ", sfname, "; is", dir.Name)
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}
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filesize := size(path, 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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path := sfdir + "/" + sfname
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file, err1 := Open(path, 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 !equal(sfname, dir.Name) {
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t.Error("name should be ", sfname, "; is", dir.Name)
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}
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filesize := size(path, 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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path := sfdir + "/" + sfname
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dir, err := Lstat(path)
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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 !equal(sfname, dir.Name) {
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t.Error("name should be ", sfname, "; is", dir.Name)
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}
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filesize := size(path, 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 equal(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 equal(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(sysdir.name, sysdir.files, 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(sysdir.name, sysdir.files, 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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// big directory that doesn't change often.
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dir := "/usr/bin"
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if syscall.OS == "windows" {
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dir = Getenv("SystemRoot") + "\\system32"
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}
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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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// Hardlinks are not supported under windows.
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if syscall.OS == "windows" {
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return
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}
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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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// Symlinks are not supported under windows.
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if syscall.OS == "windows" {
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return
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}
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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)
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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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if tostat.FollowedSymlink {
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t.Fatalf("stat %q claims to have followed a symlink", to)
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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("symlink %q, %q did not create symlink", to, from)
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}
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fromstat, err = Lstat(from)
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if err != nil {
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t.Fatalf("lstat %q failed: %v", from, err)
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}
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if !fromstat.IsSymlink() {
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t.Fatalf("symlink %q, %q did not create symlink", to, from)
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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 !fromstat.FollowedSymlink {
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t.Fatalf("stat %q did not follow symlink")
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}
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s, err := Readlink(from)
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if err != nil {
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t.Fatalf("readlink %q failed: %v", from, err)
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}
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if s != to {
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t.Fatalf("after symlink %q != %q", s, to)
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}
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file, err = Open(from, O_RDONLY, 0)
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if err != nil {
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t.Fatalf("open %q failed: %v", from, err)
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}
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file.Close()
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}
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func TestLongSymlink(t *testing.T) {
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// Symlinks are not supported under windows.
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if syscall.OS == "windows" {
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return
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}
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s := "0123456789abcdef"
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// Long, but not too long: a common limit is 255.
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s = s + s + s + s + s + s + s + s + s + s + s + s + s + s + s
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from := "longsymlinktestfrom"
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Remove(from) // Just in case.
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err := Symlink(s, from)
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if err != nil {
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t.Fatalf("symlink %q, %q failed: %v", s, from, err)
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}
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defer Remove(from)
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r, err := Readlink(from)
|
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if err != nil {
|
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t.Fatalf("readlink %q failed: %v", from, err)
|
||||
}
|
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if r != s {
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t.Fatalf("after symlink %q != %q", r, s)
|
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}
|
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}
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|
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func TestRename(t *testing.T) {
|
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from, to := "renamefrom", "renameto"
|
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Remove(to) // Just in case.
|
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file, err := Open(from, O_CREAT|O_WRONLY, 0666)
|
||||
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)
|
||||
}
|
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err = Rename(from, to)
|
||||
if err != nil {
|
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t.Fatalf("rename %q, %q failed: %v", to, from, err)
|
||||
}
|
||||
defer Remove(to)
|
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_, err = Stat(to)
|
||||
if err != nil {
|
||||
t.Errorf("stat %q failed: %v", to, err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestForkExec(t *testing.T) {
|
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var cmd, adir, expect string
|
||||
var args []string
|
||||
r, w, err := Pipe()
|
||||
if err != nil {
|
||||
t.Fatalf("Pipe: %v", err)
|
||||
}
|
||||
if syscall.OS == "windows" {
|
||||
cmd = Getenv("COMSPEC")
|
||||
args = []string{Getenv("COMSPEC"), "/c cd"}
|
||||
adir = Getenv("SystemRoot")
|
||||
expect = Getenv("SystemRoot") + "\r\n"
|
||||
} else {
|
||||
cmd = "/bin/pwd"
|
||||
args = []string{"pwd"}
|
||||
adir = "/"
|
||||
expect = "/\n"
|
||||
}
|
||||
pid, err := ForkExec(cmd, args, nil, adir, []*File{nil, w, Stderr})
|
||||
if err != nil {
|
||||
t.Fatalf("ForkExec: %v", err)
|
||||
}
|
||||
w.Close()
|
||||
|
||||
var b bytes.Buffer
|
||||
io.Copy(&b, r)
|
||||
output := b.String()
|
||||
if output != expect {
|
||||
args[0] = cmd
|
||||
t.Errorf("exec %q returned %q wanted %q", strings.Join(args, " "), output, expect)
|
||||
}
|
||||
Wait(pid, 0)
|
||||
}
|
||||
|
||||
func checkMode(t *testing.T, path string, mode uint32) {
|
||||
dir, err := Stat(path)
|
||||
if err != nil {
|
||||
t.Fatalf("Stat %q (looking for mode %#o): %s", path, mode, err)
|
||||
}
|
||||
if dir.Mode&0777 != mode {
|
||||
t.Errorf("Stat %q: mode %#o want %#o", path, dir.Mode, mode)
|
||||
}
|
||||
}
|
||||
|
||||
func TestChmod(t *testing.T) {
|
||||
// Chmod is not supported under windows.
|
||||
if syscall.OS == "windows" {
|
||||
return
|
||||
}
|
||||
f := newFile("TestChmod", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
|
||||
if err := Chmod(f.Name(), 0456); err != nil {
|
||||
t.Fatalf("chmod %s 0456: %s", f.Name(), err)
|
||||
}
|
||||
checkMode(t, f.Name(), 0456)
|
||||
|
||||
if err := f.Chmod(0123); err != nil {
|
||||
t.Fatalf("chmod %s 0123: %s", f.Name(), err)
|
||||
}
|
||||
checkMode(t, f.Name(), 0123)
|
||||
}
|
||||
|
||||
func checkUidGid(t *testing.T, path string, uid, gid int) {
|
||||
dir, err := Stat(path)
|
||||
if err != nil {
|
||||
t.Fatalf("Stat %q (looking for uid/gid %d/%d): %s", path, uid, gid, err)
|
||||
}
|
||||
if dir.Uid != uid {
|
||||
t.Errorf("Stat %q: uid %d want %d", path, dir.Uid, uid)
|
||||
}
|
||||
if dir.Gid != gid {
|
||||
t.Errorf("Stat %q: gid %d want %d", path, dir.Gid, gid)
|
||||
}
|
||||
}
|
||||
|
||||
func TestChown(t *testing.T) {
|
||||
// Chown is not supported under windows.
|
||||
if syscall.OS == "windows" {
|
||||
return
|
||||
}
|
||||
// Use TempDir() to make sure we're on a local file system,
|
||||
// so that the group ids returned by Getgroups will be allowed
|
||||
// on the file. On NFS, the Getgroups groups are
|
||||
// basically useless.
|
||||
f := newFile("TestChown", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
dir, err := f.Stat()
|
||||
if err != nil {
|
||||
t.Fatalf("stat %s: %s", f.Name(), err)
|
||||
}
|
||||
|
||||
// Can't change uid unless root, but can try
|
||||
// changing the group id. First try our current group.
|
||||
gid := Getgid()
|
||||
t.Log("gid:", gid)
|
||||
if err = Chown(f.Name(), -1, gid); err != nil {
|
||||
t.Fatalf("chown %s -1 %d: %s", f.Name(), gid, err)
|
||||
}
|
||||
checkUidGid(t, f.Name(), dir.Uid, gid)
|
||||
|
||||
// Then try all the auxiliary groups.
|
||||
groups, err := Getgroups()
|
||||
if err != nil {
|
||||
t.Fatalf("getgroups: %s", err)
|
||||
}
|
||||
t.Log("groups: ", groups)
|
||||
for _, g := range groups {
|
||||
if err = Chown(f.Name(), -1, g); err != nil {
|
||||
t.Fatalf("chown %s -1 %d: %s", f.Name(), g, err)
|
||||
}
|
||||
checkUidGid(t, f.Name(), dir.Uid, g)
|
||||
|
||||
// change back to gid to test fd.Chown
|
||||
if err = f.Chown(-1, gid); err != nil {
|
||||
t.Fatalf("fchown %s -1 %d: %s", f.Name(), gid, err)
|
||||
}
|
||||
checkUidGid(t, f.Name(), dir.Uid, gid)
|
||||
}
|
||||
}
|
||||
|
||||
func checkSize(t *testing.T, f *File, size int64) {
|
||||
dir, err := f.Stat()
|
||||
if err != nil {
|
||||
t.Fatalf("Stat %q (looking for size %d): %s", f.Name(), size, err)
|
||||
}
|
||||
if dir.Size != size {
|
||||
t.Errorf("Stat %q: size %d want %d", f.Name(), dir.Size, size)
|
||||
}
|
||||
}
|
||||
|
||||
func TestTruncate(t *testing.T) {
|
||||
f := newFile("TestTruncate", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
|
||||
checkSize(t, f, 0)
|
||||
f.Write([]byte("hello, world\n"))
|
||||
checkSize(t, f, 13)
|
||||
f.Truncate(10)
|
||||
checkSize(t, f, 10)
|
||||
f.Truncate(1024)
|
||||
checkSize(t, f, 1024)
|
||||
f.Truncate(0)
|
||||
checkSize(t, f, 0)
|
||||
f.Write([]byte("surprise!"))
|
||||
checkSize(t, f, 13+9) // wrote at offset past where hello, world was.
|
||||
}
|
||||
|
||||
// Use TempDir() to make sure we're on a local file system,
|
||||
// so that timings are not distorted by latency and caching.
|
||||
// On NFS, timings can be off due to caching of meta-data on
|
||||
// NFS servers (Issue 848).
|
||||
func TestChtimes(t *testing.T) {
|
||||
f := newFile("TestChtimes", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
|
||||
f.Write([]byte("hello, world\n"))
|
||||
f.Close()
|
||||
|
||||
preStat, err := Stat(f.Name())
|
||||
if err != nil {
|
||||
t.Fatalf("Stat %s: %s", f.Name(), err)
|
||||
}
|
||||
|
||||
// Move access and modification time back a second
|
||||
const OneSecond = 1e9 // in nanoseconds
|
||||
err = Chtimes(f.Name(), preStat.Atime_ns-OneSecond, preStat.Mtime_ns-OneSecond)
|
||||
if err != nil {
|
||||
t.Fatalf("Chtimes %s: %s", f.Name(), err)
|
||||
}
|
||||
|
||||
postStat, err := Stat(f.Name())
|
||||
if err != nil {
|
||||
t.Fatalf("second Stat %s: %s", f.Name(), err)
|
||||
}
|
||||
|
||||
if postStat.Atime_ns >= preStat.Atime_ns {
|
||||
t.Errorf("Atime_ns didn't go backwards; was=%d, after=%d",
|
||||
preStat.Atime_ns,
|
||||
postStat.Atime_ns)
|
||||
}
|
||||
|
||||
if postStat.Mtime_ns >= preStat.Mtime_ns {
|
||||
t.Errorf("Mtime_ns didn't go backwards; was=%d, after=%d",
|
||||
preStat.Mtime_ns,
|
||||
postStat.Mtime_ns)
|
||||
}
|
||||
}
|
||||
|
||||
func TestChdirAndGetwd(t *testing.T) {
|
||||
// TODO(brainman): file.Chdir() is not implemented on windows.
|
||||
if syscall.OS == "windows" {
|
||||
return
|
||||
}
|
||||
fd, err := Open(".", O_RDONLY, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Open .: %s", err)
|
||||
}
|
||||
// These are chosen carefully not to be symlinks on a Mac
|
||||
// (unlike, say, /var, /etc, and /tmp).
|
||||
dirs := []string{"/bin", "/", "/usr/bin"}
|
||||
for mode := 0; mode < 2; mode++ {
|
||||
for _, d := range dirs {
|
||||
if mode == 0 {
|
||||
err = Chdir(d)
|
||||
} else {
|
||||
fd1, err := Open(d, O_RDONLY, 0)
|
||||
if err != nil {
|
||||
t.Errorf("Open %s: %s", d, err)
|
||||
continue
|
||||
}
|
||||
err = fd1.Chdir()
|
||||
fd1.Close()
|
||||
}
|
||||
pwd, err1 := Getwd()
|
||||
err2 := fd.Chdir()
|
||||
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.
|
||||
fmt.Fprintf(Stderr, "fchdir back to dot failed: %s\n", err2)
|
||||
Exit(1)
|
||||
}
|
||||
if err != nil {
|
||||
fd.Close()
|
||||
t.Fatalf("Chdir %s: %s", d, err)
|
||||
}
|
||||
if err1 != nil {
|
||||
fd.Close()
|
||||
t.Fatalf("Getwd in %s: %s", d, err1)
|
||||
}
|
||||
if pwd != d {
|
||||
fd.Close()
|
||||
t.Fatalf("Getwd returned %q want %q", pwd, d)
|
||||
}
|
||||
}
|
||||
}
|
||||
fd.Close()
|
||||
}
|
||||
|
||||
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.
|
||||
// Too bad the compiler doesn't know that
|
||||
// 365.24*86400 is an integer.
|
||||
sec, nsec, err := Time()
|
||||
if sec < (2009-1970)*36524*864 {
|
||||
t.Errorf("Time() = %d, %d, %s; not plausible", sec, nsec, err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSeek(t *testing.T) {
|
||||
f := newFile("TestSeek", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
|
||||
const data = "hello, world\n"
|
||||
io.WriteString(f, data)
|
||||
|
||||
type test struct {
|
||||
in int64
|
||||
whence int
|
||||
out int64
|
||||
}
|
||||
var tests = []test{
|
||||
{0, 1, int64(len(data))},
|
||||
{0, 0, 0},
|
||||
{5, 0, 5},
|
||||
{0, 2, int64(len(data))},
|
||||
{0, 0, 0},
|
||||
{-1, 2, int64(len(data)) - 1},
|
||||
{1 << 33, 0, 1 << 33},
|
||||
{1 << 33, 2, 1<<33 + int64(len(data))},
|
||||
}
|
||||
for i, tt := range tests {
|
||||
off, err := f.Seek(tt.in, tt.whence)
|
||||
if off != tt.out || err != nil {
|
||||
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
|
||||
}
|
||||
t.Errorf("#%d: Seek(%v, %v) = %v, %v want %v, nil", i, tt.in, tt.whence, off, err, tt.out)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type openErrorTest struct {
|
||||
path string
|
||||
mode int
|
||||
error Error
|
||||
}
|
||||
|
||||
var openErrorTests = []openErrorTest{
|
||||
{
|
||||
sfdir + "/no-such-file",
|
||||
O_RDONLY,
|
||||
ENOENT,
|
||||
},
|
||||
{
|
||||
sfdir,
|
||||
O_WRONLY,
|
||||
EISDIR,
|
||||
},
|
||||
{
|
||||
sfdir + "/" + sfname + "/no-such-file",
|
||||
O_WRONLY,
|
||||
ENOTDIR,
|
||||
},
|
||||
}
|
||||
|
||||
func TestOpenError(t *testing.T) {
|
||||
for _, tt := range openErrorTests {
|
||||
f, err := Open(tt.path, tt.mode, 0)
|
||||
if err == nil {
|
||||
t.Errorf("Open(%q, %d) succeeded", tt.path, tt.mode)
|
||||
f.Close()
|
||||
continue
|
||||
}
|
||||
perr, ok := err.(*PathError)
|
||||
if !ok {
|
||||
t.Errorf("Open(%q, %d) returns error of %T type; want *os.PathError", tt.path, tt.mode, err)
|
||||
}
|
||||
if perr.Error != tt.error {
|
||||
t.Errorf("Open(%q, %d) = _, %q; want %q", tt.path, tt.mode, perr.Error.String(), tt.error.String())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func run(t *testing.T, cmd []string) string {
|
||||
// Run /bin/hostname and collect output.
|
||||
r, w, err := Pipe()
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
pid, err := ForkExec("/bin/hostname", []string{"hostname"}, nil, "/", []*File{nil, w, Stderr})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
w.Close()
|
||||
|
||||
var b bytes.Buffer
|
||||
io.Copy(&b, r)
|
||||
Wait(pid, 0)
|
||||
output := b.String()
|
||||
if n := len(output); n > 0 && output[n-1] == '\n' {
|
||||
output = output[0 : n-1]
|
||||
}
|
||||
if output == "" {
|
||||
t.Fatalf("%v produced no output", cmd)
|
||||
}
|
||||
|
||||
return output
|
||||
}
|
||||
|
||||
|
||||
func TestHostname(t *testing.T) {
|
||||
// There is no other way to fetch hostname on windows, but via winapi.
|
||||
if syscall.OS == "windows" {
|
||||
return
|
||||
}
|
||||
// Check internal Hostname() against the output of /bin/hostname.
|
||||
// Allow that the internal Hostname returns a Fully Qualified Domain Name
|
||||
// and the /bin/hostname only returns the first component
|
||||
hostname, err := Hostname()
|
||||
if err != nil {
|
||||
t.Fatalf("%v", err)
|
||||
}
|
||||
want := run(t, []string{"/bin/hostname"})
|
||||
if hostname != want {
|
||||
i := strings.Index(hostname, ".")
|
||||
if i < 0 || hostname[0:i] != want {
|
||||
t.Errorf("Hostname() = %q, want %q", hostname, want)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestReadAt(t *testing.T) {
|
||||
f := newFile("TestReadAt", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
|
||||
const data = "hello, world\n"
|
||||
io.WriteString(f, data)
|
||||
|
||||
b := make([]byte, 5)
|
||||
n, err := f.ReadAt(b, 7)
|
||||
if err != nil || n != len(b) {
|
||||
t.Fatalf("ReadAt 7: %d, %r", n, err)
|
||||
}
|
||||
if string(b) != "world" {
|
||||
t.Fatalf("ReadAt 7: have %q want %q", string(b), "world")
|
||||
}
|
||||
}
|
||||
|
||||
func TestWriteAt(t *testing.T) {
|
||||
f := newFile("TestWriteAt", t)
|
||||
defer Remove(f.Name())
|
||||
defer f.Close()
|
||||
|
||||
const data = "hello, world\n"
|
||||
io.WriteString(f, data)
|
||||
|
||||
n, err := f.WriteAt([]byte("WORLD"), 7)
|
||||
if err != nil || n != 5 {
|
||||
t.Fatalf("WriteAt 7: %d, %v", n, err)
|
||||
}
|
||||
|
||||
b, err := ioutil.ReadFile(f.Name())
|
||||
if err != nil {
|
||||
t.Fatalf("ReadFile %s: %v", f.Name(), err)
|
||||
}
|
||||
if string(b) != "hello, WORLD\n" {
|
||||
t.Fatalf("after write: have %q want %q", string(b), "hello, WORLD\n")
|
||||
}
|
||||
}
|
||||
|
||||
func writeFile(t *testing.T, fname string, flag int, text string) string {
|
||||
f, err := Open(fname, flag, 0666)
|
||||
if err != nil {
|
||||
t.Fatalf("Open: %v", err)
|
||||
}
|
||||
n, err := io.WriteString(f, text)
|
||||
if err != nil {
|
||||
t.Fatalf("WriteString: %d, %v", n, err)
|
||||
}
|
||||
f.Close()
|
||||
data, err := ioutil.ReadFile(fname)
|
||||
if err != nil {
|
||||
t.Fatalf("ReadFile: %v", err)
|
||||
}
|
||||
return string(data)
|
||||
}
|
||||
|
||||
func TestAppend(t *testing.T) {
|
||||
const f = "append.txt"
|
||||
defer Remove(f)
|
||||
s := writeFile(t, f, O_CREAT|O_TRUNC|O_RDWR, "new")
|
||||
if s != "new" {
|
||||
t.Fatalf("writeFile: have %q want %q", s, "new")
|
||||
}
|
||||
s = writeFile(t, f, O_APPEND|O_RDWR, "|append")
|
||||
if s != "new|append" {
|
||||
t.Fatalf("writeFile: have %q want %q", s, "new|append")
|
||||
}
|
||||
}
|
||||
|
||||
func TestStatDirWithTrailingSlash(t *testing.T) {
|
||||
// Create new dir, in _obj so it will get
|
||||
// cleaned up by make if not by us.
|
||||
path := "_obj/_TestStatDirWithSlash_"
|
||||
err := MkdirAll(path, 0777)
|
||||
if err != nil {
|
||||
t.Fatalf("MkdirAll %q: %s", path, err)
|
||||
}
|
||||
|
||||
// Stat of path should succeed.
|
||||
_, err = Stat(path)
|
||||
if err != nil {
|
||||
t.Fatal("stat failed:", err)
|
||||
}
|
||||
|
||||
// Stat of path+"/" should succeed too.
|
||||
_, err = Stat(path + "/")
|
||||
if err != nil {
|
||||
t.Fatal("stat failed:", err)
|
||||
}
|
||||
|
||||
RemoveAll("_obj/_TestMkdirAll_")
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue