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// Copyright 2019 the Go-FUSE 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 fs_test
import (
"archive/zip"
"bytes"
"context"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"syscall"
"testing"
"github.com/hanwen/go-fuse/v2/fs"
)
var testData = map[string]string{
"file.txt": "content",
"dir/": "",
"dir/subfile1": "content2",
"dir/subdir/subfile": "content3",
}
func createZip(data map[string]string) []byte {
buf := &bytes.Buffer{}
zw := zip.NewWriter(buf)
var keys []string
for k := range data {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
fw, _ := zw.Create(k)
d := []byte(testData[k])
if len(d) > 0 {
fw.Write(d)
}
}
zw.Close()
return buf.Bytes()
}
type byteReaderAt struct {
b []byte
}
func (br *byteReaderAt) ReadAt(data []byte, off int64) (int, error) {
end := int(off) + len(data)
if end > len(br.b) {
end = len(br.b)
}
copy(data, br.b[off:end])
return end - int(off), nil
}
func TestZipFS(t *testing.T) {
zipBytes := createZip(testData)
r, err := zip.NewReader(&byteReaderAt{zipBytes}, int64(len(zipBytes)))
if err != nil {
t.Fatal(err)
}
root := &zipRoot{zr: r}
mntDir := t.TempDir()
server, err := fs.Mount(mntDir, root, nil)
if err != nil {
t.Fatal(err)
}
defer server.Unmount()
for k, v := range testData {
if strings.HasSuffix(k, "/") {
fi, err := os.Stat(filepath.Join(mntDir, k))
if err != nil {
t.Errorf("stat %s: %v", k, err)
} else if !fi.IsDir() {
t.Errorf("want isdir, got %v", fi)
}
continue
}
c, err := os.ReadFile(filepath.Join(mntDir, k))
if err != nil {
t.Fatal(err)
}
if string(c) != v {
t.Errorf("got %q, want %q", c, v)
}
}
entries, err := os.ReadDir(mntDir)
if err != nil {
t.Fatal(err)
}
got := map[string]bool{}
for _, e := range entries {
got[e.Name()] = e.IsDir()
}
want := map[string]bool{
"dir": true, "file.txt": false,
}
if !reflect.DeepEqual(got, want) {
t.Errorf("got %v want %v", got, want)
}
}
func TestZipFSOnAdd(t *testing.T) {
zipBytes := createZip(testData)
r, err := zip.NewReader(&byteReaderAt{zipBytes}, int64(len(zipBytes)))
if err != nil {
t.Fatal(err)
}
zr := &zipRoot{zr: r}
root := &fs.Inode{}
mnt := t.TempDir()
server, err := fs.Mount(mnt, root, &fs.Options{
OnAdd: func(ctx context.Context) {
root.AddChild("sub",
root.NewPersistentInode(ctx, zr, fs.StableAttr{Mode: syscall.S_IFDIR}), false)
},
})
if err != nil {
t.Fatal(err)
}
defer server.Unmount()
c, err := os.ReadFile(mnt + "/sub/dir/subdir/subfile")
if err != nil {
t.Fatal("ReadFile", err)
}
if got, want := string(c), "content3"; got != want {
t.Errorf("got %q, want %q", got, want)
}
}
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