/usr/share/gocode/src/github.com/hanwen/go-fuse/unionfs/unionfs_xattr_test.go is in golang-github-hanwen-go-fuse-dev 0.0~git20171124.0.14c3015-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | // Copyright 2016 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 unionfs
import (
"os"
"sync/atomic"
"testing"
"time"
"github.com/hanwen/go-fuse/fuse"
"github.com/hanwen/go-fuse/fuse/nodefs"
"github.com/hanwen/go-fuse/fuse/pathfs"
"github.com/hanwen/go-fuse/internal/testutil"
)
type TestFS struct {
pathfs.FileSystem
xattrRead int64
}
func (fs *TestFS) GetAttr(path string, context *fuse.Context) (*fuse.Attr, fuse.Status) {
switch path {
case "":
return &fuse.Attr{Mode: fuse.S_IFDIR | 0755}, fuse.OK
case "file":
return &fuse.Attr{Mode: fuse.S_IFREG | 0755}, fuse.OK
}
return nil, fuse.ENOENT
}
func (fs *TestFS) GetXAttr(path string, name string, context *fuse.Context) ([]byte, fuse.Status) {
if path == "file" && name == "user.attr" {
atomic.AddInt64(&fs.xattrRead, 1)
return []byte{42}, fuse.OK
}
return nil, fuse.ENOATTR
}
func TestXAttrCaching(t *testing.T) {
wd := testutil.TempDir()
defer os.RemoveAll(wd)
os.Mkdir(wd+"/mnt", 0700)
err := os.Mkdir(wd+"/rw", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
rwFS := pathfs.NewLoopbackFileSystem(wd + "/rw")
roFS := &TestFS{
FileSystem: pathfs.NewDefaultFileSystem(),
}
ufs, err := NewUnionFs([]pathfs.FileSystem{rwFS,
NewCachingFileSystem(roFS, entryTtl)}, testOpts)
if err != nil {
t.Fatalf("NewUnionFs: %v", err)
}
opts := &nodefs.Options{
EntryTimeout: entryTtl / 2,
AttrTimeout: entryTtl / 2,
NegativeTimeout: entryTtl / 2,
Debug: testutil.VerboseTest(),
}
pathfs := pathfs.NewPathNodeFs(ufs,
&pathfs.PathNodeFsOptions{ClientInodes: true,
Debug: testutil.VerboseTest()})
server, _, err := nodefs.MountRoot(wd+"/mnt", pathfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
defer server.Unmount()
go server.Serve()
server.WaitMount()
if fi, err := os.Lstat(wd + "/mnt"); err != nil || !fi.IsDir() {
t.Fatalf("root not readable: %v, %v", err, fi)
}
buf := make([]byte, 1024)
n, err := Getxattr(wd+"/mnt/file", "user.attr", buf)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
want := "\x2a"
got := string(buf[:n])
if got != want {
t.Fatalf("Got %q want %q", got, err)
}
time.Sleep(entryTtl / 3)
n, err = Getxattr(wd+"/mnt/file", "user.attr", buf)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
got = string(buf[:n])
if got != want {
t.Fatalf("Got %q want %q", got, err)
}
time.Sleep(entryTtl / 3)
// Make sure that an interceding Getxattr() to a filesystem that doesn't implement GetXAttr() doesn't affect future calls.
Getxattr(wd, "whatever", buf)
n, err = Getxattr(wd+"/mnt/file", "user.attr", buf)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
got = string(buf[:n])
if got != want {
t.Fatalf("Got %q want %q", got, err)
}
actual := atomic.LoadInt64(&roFS.xattrRead)
if actual != 1 {
t.Errorf("got xattrRead=%d, want 1", actual)
}
}
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