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// Copyright (C) 2015 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 versioner
import (
"io/ioutil"
"testing"
"time"
"github.com/syncthing/syncthing/lib/config"
"github.com/syncthing/syncthing/lib/fs"
)
func TestTrashcanArchiveRestoreSwitcharoo(t *testing.T) {
// This tests that trashcan versioner restoration correctly archives existing file, because trashcan versioner
// files are untagged, archiving existing file to replace with a restored version technically should collide in
// in names.
tmpDir1, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
tmpDir2, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
cfg := config.FolderConfiguration{
FilesystemType: fs.FilesystemTypeBasic,
Path: tmpDir1,
Versioning: config.VersioningConfiguration{
FSType: fs.FilesystemTypeBasic,
FSPath: tmpDir2,
},
}
folderFs := cfg.Filesystem()
versionsFs := fs.NewFilesystem(fs.FilesystemTypeBasic, tmpDir2)
writeFile(t, folderFs, "file", "A")
versioner := newTrashcan(cfg)
if err := versioner.Archive("file"); err != nil {
t.Fatal(err)
}
if _, err := folderFs.Stat("file"); !fs.IsNotExist(err) {
t.Fatal(err)
}
// Check versions
versions, err := versioner.GetVersions()
if err != nil {
t.Fatal(err)
}
fileVersions := versions["file"]
if len(fileVersions) != 1 {
t.Fatalf("unexpected number of versions: %d != 1", len(fileVersions))
}
fileVersion := fileVersions[0]
if !fileVersion.ModTime.Equal(fileVersion.VersionTime) {
t.Error("time mismatch")
}
if content := readFile(t, versionsFs, "file"); content != "A" {
t.Errorf("expected A got %s", content)
}
writeFile(t, folderFs, "file", "B")
versionInfo, err := versionsFs.Stat("file")
if err != nil {
t.Fatal(err)
}
if !versionInfo.ModTime().Truncate(time.Second).Equal(fileVersion.ModTime) {
t.Error("time mismatch")
}
if err := versioner.Restore("file", fileVersion.VersionTime); err != nil {
t.Fatal(err)
}
if content := readFile(t, folderFs, "file"); content != "A" {
t.Errorf("expected A got %s", content)
}
if content := readFile(t, versionsFs, "file"); content != "B" {
t.Errorf("expected B got %s", content)
}
}
func readFile(t *testing.T, filesystem fs.Filesystem, name string) string {
t.Helper()
fd, err := filesystem.Open(name)
if err != nil {
t.Fatal(err)
}
defer fd.Close()
buf, err := ioutil.ReadAll(fd)
if err != nil {
t.Fatal(err)
}
return string(buf)
}
func writeFile(t *testing.T, filesystem fs.Filesystem, name, content string) {
fd, err := filesystem.OpenFile(name, fs.OptReadWrite|fs.OptCreate, 0777)
if err != nil {
t.Fatal(err)
}
defer fd.Close()
if err := fd.Truncate(int64(len(content))); err != nil {
t.Fatal(err)
}
if n, err := fd.Write([]byte(content)); err != nil || n != len(content) {
t.Fatal(n, len(content), err)
}
}
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