// Create and mount filesystem.
func NewTestCase(t *testing.T) *testCase {
tc := &testCase{}
tc.tester = t
// Make sure system setting does not affect test.
syscall.Umask(0)
const name string = "hello.txt"
const subdir string = "subdir"
var err error
tc.tmpDir, err = ioutil.TempDir("", "go-fuse")
if err != nil {
t.Fatalf("TempDir failed: %v", err)
}
tc.orig = tc.tmpDir + "/orig"
tc.mnt = tc.tmpDir + "/mnt"
os.Mkdir(tc.orig, 0700)
os.Mkdir(tc.mnt, 0700)
tc.mountFile = filepath.Join(tc.mnt, name)
tc.mountSubdir = filepath.Join(tc.mnt, subdir)
tc.origFile = filepath.Join(tc.orig, name)
tc.origSubdir = filepath.Join(tc.orig, subdir)
var pfs pathfs.FileSystem
pfs = pathfs.NewLoopbackFileSystem(tc.orig)
pfs = pathfs.NewLockingFileSystem(pfs)
tc.pathFs = pathfs.NewPathNodeFs(pfs, &pathfs.PathNodeFsOptions{
ClientInodes: true})
tc.connector = nodefs.NewFileSystemConnector(tc.pathFs.Root(),
&nodefs.Options{
EntryTimeout: testTtl,
AttrTimeout: testTtl,
NegativeTimeout: 0.0,
})
tc.connector.SetDebug(VerboseTest())
tc.state, err = fuse.NewServer(
fuse.NewRawFileSystem(tc.connector.RawFS()), tc.mnt, &fuse.MountOptions{SingleThreaded: true})
if err != nil {
t.Fatal("NewServer:", err)
}
tc.state.SetDebug(VerboseTest())
// Unthreaded, but in background.
go tc.state.Serve()
tc.state.WaitMount()
return tc
}
func TestFSetAttr(t *testing.T) {
fs := pathfs.NewLockingFileSystem(&FSetAttrFs{
FileSystem: pathfs.NewDefaultFileSystem(),
})
dir, clean := setupFAttrTest(t, fs)
defer clean()
fn := dir + "/file"
f, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY, 0755)
if err != nil {
t.Fatalf("OpenFile failed: %v", err)
}
defer f.Close()
fi, err := f.Stat()
if err != nil {
t.Fatalf("Stat failed: %v", err)
}
_, err = f.WriteString("hello")
if err != nil {
t.Fatalf("WriteString failed: %v", err)
}
code := syscall.Ftruncate(int(f.Fd()), 3)
if code != nil {
t.Error("truncate retval", os.NewSyscallError("Ftruncate", code))
}
if a, status := fs.GetAttr("file", nil); !status.Ok() {
t.Fatalf("GetAttr: status %v", status)
} else if a.Size != 3 {
t.Errorf("truncate: size %d, status %v", a.Size, status)
}
if err := f.Chmod(024); err != nil {
t.Fatalf("Chmod failed: %v", err)
}
if a, status := fs.GetAttr("file", nil); !status.Ok() {
t.Errorf("chmod: %v", status)
} else if a.Mode&07777 != 024 {
t.Errorf("getattr after chmod: %o", a.Mode&0777)
}
if err := os.Chtimes(fn, time.Unix(0, 100e3), time.Unix(0, 101e3)); err != nil {
t.Fatalf("Chtimes failed: %v", err)
}
if a, status := fs.GetAttr("file", nil); !status.Ok() {
t.Errorf("GetAttr: %v", status)
} else if a.Atimensec != 100e3 || a.Mtimensec != 101e3 {
t.Errorf("Utimens: atime %d != 100e3 mtime %d != 101e3",
a.Atimensec, a.Mtimensec)
}
newFi, err := f.Stat()
if err != nil {
t.Fatalf("Stat failed: %v", err)
}
i1 := fuse.ToStatT(fi).Ino
i2 := fuse.ToStatT(newFi).Ino
if i1 != i2 {
t.Errorf("f.Lstat().Ino = %d. Returned %d before.", i2, i1)
}
// TODO - test chown if run as root.
}
func TestUnionFsDisappearing(t *testing.T) {
// This init is like setupUfs, but we want access to the
// writable Fs.
wd, _ := ioutil.TempDir("", "")
defer os.RemoveAll(wd)
err := os.Mkdir(wd+"/mnt", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
err = os.Mkdir(wd+"/rw", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
os.Mkdir(wd+"/ro", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
wrFs := newDisappearingFS(pathfs.NewLoopbackFileSystem(wd+"/rw"),
pathfs.NewLoopbackFileSystem("/dev/null"))
var fses []pathfs.FileSystem
fses = append(fses, pathfs.NewLockingFileSystem(wrFs))
fses = append(fses, pathfs.NewLoopbackFileSystem(wd+"/ro"))
ufs, err := NewUnionFs(fses, testOpts)
if err != nil {
t.Fatalf("NewUnionFs: %v", err)
}
opts := &nodefs.Options{
EntryTimeout: entryTtl,
AttrTimeout: entryTtl,
NegativeTimeout: entryTtl,
}
nfs := pathfs.NewPathNodeFs(ufs, nil)
state, _, err := nodefs.MountRoot(wd+"/mnt", nfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
defer state.Unmount()
state.SetDebug(VerboseTest())
go state.Serve()
log.Println("TestUnionFsDisappearing2")
err = ioutil.WriteFile(wd+"/ro/file", []byte("blabla"), 0644)
if err != nil {
t.Fatalf("WriteFile failed: %v", err)
}
setRecursiveWritable(t, wd+"/ro", false)
err = os.Remove(wd + "/mnt/file")
if err != nil {
t.Fatalf("Remove failed: %v", err)
}
wrFs.visibleChan <- false
time.Sleep((3 * entryTtl) / 2)
_, err = ioutil.ReadDir(wd + "/mnt")
if err == nil {
t.Fatal("Readdir should have failed")
}
log.Println("expected readdir failure:", err)
err = ioutil.WriteFile(wd+"/mnt/file2", []byte("blabla"), 0644)
if err == nil {
t.Fatal("write should have failed")
}
log.Println("expected write failure:", err)
// Restore, and wait for caches to catch up.
wrFs.visibleChan <- true
time.Sleep((3 * entryTtl) / 2)
_, err = ioutil.ReadDir(wd + "/mnt")
if err != nil {
t.Fatal("Readdir should succeed", err)
}
err = ioutil.WriteFile(wd+"/mnt/file2", []byte("blabla"), 0644)
if err != nil {
t.Fatal("write should succeed", err)
}
}