syncthing/lib/osutil/osutil_test.go
2019-02-02 11:45:17 +01:00

271 lines
6.4 KiB
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package osutil_test
import (
"os"
"path/filepath"
"runtime"
"strings"
"testing"
"github.com/syncthing/syncthing/lib/fs"
"github.com/syncthing/syncthing/lib/osutil"
)
func TestInWriteableDir(t *testing.T) {
err := os.RemoveAll("testdata")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll("testdata")
fs := fs.NewFilesystem(fs.FilesystemTypeBasic, ".")
_ = os.Mkdir("testdata", 0700)
_ = os.Mkdir("testdata/rw", 0700)
_ = os.Mkdir("testdata/ro", 0500)
create := func(name string) error {
fd, err := os.Create(name)
if err != nil {
return err
}
fd.Close()
return nil
}
// These should succeed
err = osutil.InWritableDir(create, fs, "testdata/file")
if err != nil {
t.Error("testdata/file:", err)
}
err = osutil.InWritableDir(create, fs, "testdata/rw/foo")
if err != nil {
t.Error("testdata/rw/foo:", err)
}
err = osutil.InWritableDir(os.Remove, fs, "testdata/rw/foo")
if err != nil {
t.Error("testdata/rw/foo:", err)
}
err = osutil.InWritableDir(create, fs, "testdata/ro/foo")
if err != nil {
t.Error("testdata/ro/foo:", err)
}
err = osutil.InWritableDir(os.Remove, fs, "testdata/ro/foo")
if err != nil {
t.Error("testdata/ro/foo:", err)
}
// These should not
err = osutil.InWritableDir(create, fs, "testdata/nonexistent/foo")
if err == nil {
t.Error("testdata/nonexistent/foo returned nil error")
}
err = osutil.InWritableDir(create, fs, "testdata/file/foo")
if err == nil {
t.Error("testdata/file/foo returned nil error")
}
}
func TestInWritableDirWindowsRemove(t *testing.T) {
// os.Remove should remove read only things on windows
if runtime.GOOS != "windows" {
t.Skipf("Tests not required")
return
}
err := os.RemoveAll("testdata")
if err != nil {
t.Fatal(err)
}
defer func() { _ = os.Chmod("testdata/windows/ro/readonlynew", 0700) }()
defer os.RemoveAll("testdata")
create := func(name string) error {
fd, err := os.Create(name)
if err != nil {
return err
}
fd.Close()
return nil
}
_ = os.Mkdir("testdata", 0700)
_ = os.Mkdir("testdata/windows", 0500)
_ = os.Mkdir("testdata/windows/ro", 0500)
_ = create("testdata/windows/ro/readonly")
_ = os.Chmod("testdata/windows/ro/readonly", 0500)
fs := fs.NewFilesystem(fs.FilesystemTypeBasic, ".")
for _, path := range []string{"testdata/windows/ro/readonly", "testdata/windows/ro", "testdata/windows"} {
err := osutil.InWritableDir(os.Remove, fs, path)
if err != nil {
t.Errorf("Unexpected error %s: %s", path, err)
}
}
}
func TestInWritableDirWindowsRemoveAll(t *testing.T) {
// os.RemoveAll should remove read only things on windows
if runtime.GOOS != "windows" {
t.Skipf("Tests not required")
return
}
err := os.RemoveAll("testdata")
if err != nil {
t.Fatal(err)
}
defer func() { _ = os.Chmod("testdata/windows/ro/readonlynew", 0700) }()
defer func() { _ = os.RemoveAll("testdata") }()
create := func(name string) error {
fd, err := os.Create(name)
if err != nil {
return err
}
fd.Close()
return nil
}
_ = os.Mkdir("testdata", 0700)
_ = os.Mkdir("testdata/windows", 0500)
_ = os.Mkdir("testdata/windows/ro", 0500)
_ = create("testdata/windows/ro/readonly")
_ = os.Chmod("testdata/windows/ro/readonly", 0500)
if err := os.RemoveAll("testdata/windows"); err != nil {
t.Errorf("Unexpected error: %s", err)
}
}
func TestInWritableDirWindowsRename(t *testing.T) {
if runtime.GOOS != "windows" {
t.Skipf("Tests not required")
return
}
err := os.RemoveAll("testdata")
if err != nil {
t.Fatal(err)
}
defer func() { _ = os.Chmod("testdata/windows/ro/readonlynew", 0700) }()
defer func() { _ = os.RemoveAll("testdata") }()
create := func(name string) error {
fd, err := os.Create(name)
if err != nil {
return err
}
fd.Close()
return nil
}
_ = os.Mkdir("testdata", 0700)
_ = os.Mkdir("testdata/windows", 0500)
_ = os.Mkdir("testdata/windows/ro", 0500)
_ = create("testdata/windows/ro/readonly")
_ = os.Chmod("testdata/windows/ro/readonly", 0500)
fs := fs.NewFilesystem(fs.FilesystemTypeBasic, ".")
for _, path := range []string{"testdata/windows/ro/readonly", "testdata/windows/ro", "testdata/windows"} {
err := os.Rename(path, path+"new")
if err == nil {
t.Skipf("seem like this test doesn't work here")
return
}
}
rename := func(path string) error {
return osutil.Rename(fs, path, path+"new")
}
for _, path := range []string{"testdata/windows/ro/readonly", "testdata/windows/ro", "testdata/windows"} {
err := osutil.InWritableDir(rename, fs, path)
if err != nil {
t.Errorf("Unexpected error %s: %s", path, err)
}
_, err = os.Stat(path + "new")
if err != nil {
t.Errorf("Unexpected error %s: %s", path, err)
}
}
}
func TestIsDeleted(t *testing.T) {
type tc struct {
path string
isDel bool
}
cases := []tc{
{"del", true},
{"del.file", false},
{"del/del", true},
{"file", false},
{"linkToFile", false},
{"linkToDel", false},
{"linkToDir", false},
{"linkToDir/file", true},
{"file/behindFile", true},
{"dir", false},
{"dir.file", false},
{"dir/file", false},
{"dir/del", true},
{"dir/del/del", true},
{"del/del/del", true},
}
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, "testdata")
_ = testFs.MkdirAll("dir", 0777)
for _, f := range []string{"file", "del.file", "dir.file", "dir/file"} {
fd, err := testFs.Create(f)
if err != nil {
t.Fatal(err)
}
fd.Close()
}
if runtime.GOOS != "windows" {
// Can't create unreadable dir on windows
_ = testFs.MkdirAll("inacc", 0777)
if err := testFs.Chmod("inacc", 0000); err == nil {
if _, err := testFs.Lstat("inacc/file"); fs.IsPermission(err) {
// May fail e.g. if tests are run as root -> just skip
cases = append(cases, tc{"inacc", false}, tc{"inacc/file", false})
}
}
}
for _, n := range []string{"Dir", "File", "Del"} {
if err := osutil.DebugSymlinkForTestsOnly(filepath.Join(testFs.URI(), strings.ToLower(n)), filepath.Join(testFs.URI(), "linkTo"+n)); err != nil {
if runtime.GOOS == "windows" {
t.Skip("Symlinks aren't working")
}
t.Fatal(err)
}
}
for _, c := range cases {
if osutil.IsDeleted(testFs, c.path) != c.isDel {
t.Errorf("IsDeleted(%v) != %v", c.path, c.isDel)
}
}
_ = testFs.Chmod("inacc", 0777)
os.RemoveAll("testdata")
}