1
mirror of https://github.com/rclone/rclone synced 2024-12-11 23:54:00 +01:00
rclone/vfs/dir_test.go
Remus Bunduc 70f07fd3ac
fs: add ChangeNotify and backend support for it (#2094)
* fs: rename DirChangeNotify to ChangeNotify

* cache: switch to ChangeNotify

* ChangeNotify: keep order of notifications
2018-03-08 22:03:34 +02:00

463 lines
11 KiB
Go

package vfs
import (
"fmt"
"os"
"sort"
"testing"
"time"
"github.com/ncw/rclone/fs"
"github.com/ncw/rclone/fstest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func dirCreate(t *testing.T, r *fstest.Run) (*VFS, *Dir, fstest.Item) {
vfs := New(r.Fremote, nil)
file1 := r.WriteObject("dir/file1", "file1 contents", t1)
fstest.CheckItems(t, r.Fremote, file1)
node, err := vfs.Stat("dir")
require.NoError(t, err)
require.True(t, node.IsDir())
return vfs, node.(*Dir), file1
}
func TestDirMethods(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, _ := dirCreate(t, r)
// String
assert.Equal(t, "dir/", dir.String())
assert.Equal(t, "<nil *Dir>", (*Dir)(nil).String())
// IsDir
assert.Equal(t, true, dir.IsDir())
// IsFile
assert.Equal(t, false, dir.IsFile())
// Mode
assert.Equal(t, vfs.Opt.DirPerms, dir.Mode())
// Name
assert.Equal(t, "dir", dir.Name())
// Path
assert.Equal(t, "dir", dir.Path())
// Sys
assert.Equal(t, nil, dir.Sys())
// Inode
assert.NotEqual(t, uint64(0), dir.Inode())
// Node
assert.Equal(t, dir, dir.Node())
// ModTime
assert.WithinDuration(t, t1, dir.ModTime(), 100*365*24*60*60*time.Second)
// Size
assert.Equal(t, int64(0), dir.Size())
// Sync
assert.NoError(t, dir.Sync())
// DirEntry
assert.Equal(t, dir.entry, dir.DirEntry())
// VFS
assert.Equal(t, vfs, dir.VFS())
}
func TestDirForgetAll(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, file1 := dirCreate(t, r)
// Make sure / and dir are in cache
_, err := vfs.Stat(file1.Path)
require.NoError(t, err)
root, err := vfs.Root()
require.NoError(t, err)
assert.Equal(t, 1, len(root.items))
assert.Equal(t, 1, len(dir.items))
dir.ForgetAll()
assert.Equal(t, 1, len(root.items))
assert.Equal(t, 0, len(dir.items))
root.ForgetAll()
assert.Equal(t, 0, len(root.items))
assert.Equal(t, 0, len(dir.items))
}
func TestDirForgetPath(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, file1 := dirCreate(t, r)
// Make sure / and dir are in cache
_, err := vfs.Stat(file1.Path)
require.NoError(t, err)
root, err := vfs.Root()
require.NoError(t, err)
assert.Equal(t, 1, len(root.items))
assert.Equal(t, 1, len(dir.items))
root.ForgetPath("dir", fs.EntryDirectory)
assert.Equal(t, 1, len(root.items))
assert.Equal(t, 0, len(dir.items))
root.ForgetPath("not/in/cache", fs.EntryDirectory)
assert.Equal(t, 1, len(root.items))
assert.Equal(t, 0, len(dir.items))
}
func TestDirWalk(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, _, file1 := dirCreate(t, r)
file2 := r.WriteObject("fil/a/b/c", "super long file", t1)
fstest.CheckItems(t, r.Fremote, file1, file2)
root, err := vfs.Root()
require.NoError(t, err)
// Forget the cache since we put another object in
root.ForgetAll()
// Read the directories in
_, err = vfs.Stat("dir")
require.NoError(t, err)
_, err = vfs.Stat("fil/a/b")
require.NoError(t, err)
fil, err := vfs.Stat("fil")
require.NoError(t, err)
var result []string
fn := func(d *Dir) {
result = append(result, d.path)
}
result = nil
root.walk("", fn)
sort.Strings(result) // sort as there is a map traversal involved
assert.Equal(t, []string{"", "dir", "fil", "fil/a", "fil/a/b"}, result)
result = nil
root.walk("dir", fn)
assert.Equal(t, []string{"dir"}, result)
result = nil
root.walk("not found", fn)
assert.Equal(t, []string(nil), result)
result = nil
root.walk("fil", fn)
assert.Equal(t, []string{"fil/a/b", "fil/a", "fil"}, result)
result = nil
fil.(*Dir).walk("fil", fn)
assert.Equal(t, []string{"fil/a/b", "fil/a", "fil"}, result)
result = nil
root.walk("fil/a", fn)
assert.Equal(t, []string{"fil/a/b", "fil/a"}, result)
result = nil
fil.(*Dir).walk("fil/a", fn)
assert.Equal(t, []string{"fil/a/b", "fil/a"}, result)
result = nil
root.walk("fil/a", fn)
assert.Equal(t, []string{"fil/a/b", "fil/a"}, result)
result = nil
root.walk("fil/a/b", fn)
assert.Equal(t, []string{"fil/a/b"}, result)
}
func TestDirSetModTime(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, _ := dirCreate(t, r)
err := dir.SetModTime(t1)
require.NoError(t, err)
assert.WithinDuration(t, t1, dir.ModTime(), time.Second)
err = dir.SetModTime(t2)
require.NoError(t, err)
assert.WithinDuration(t, t2, dir.ModTime(), time.Second)
vfs.Opt.ReadOnly = true
err = dir.SetModTime(t2)
assert.Equal(t, EROFS, err)
}
func TestDirStat(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
_, dir, _ := dirCreate(t, r)
node, err := dir.Stat("file1")
require.NoError(t, err)
_, ok := node.(*File)
assert.True(t, ok)
assert.Equal(t, int64(14), node.Size())
assert.Equal(t, "file1", node.Name())
node, err = dir.Stat("not found")
assert.Equal(t, ENOENT, err)
}
// This lists dir and checks the listing is as expected
func checkListing(t *testing.T, dir *Dir, want []string) {
var got []string
nodes, err := dir.ReadDirAll()
require.NoError(t, err)
for _, node := range nodes {
got = append(got, fmt.Sprintf("%s,%d,%v", node.Name(), node.Size(), node.IsDir()))
}
assert.Equal(t, want, got)
}
func TestDirReadDirAll(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs := New(r.Fremote, nil)
file1 := r.WriteObject("dir/file1", "file1 contents", t1)
file2 := r.WriteObject("dir/file2", "file2- contents", t2)
file3 := r.WriteObject("dir/subdir/file3", "file3-- contents", t3)
fstest.CheckItems(t, r.Fremote, file1, file2, file3)
node, err := vfs.Stat("dir")
require.NoError(t, err)
dir := node.(*Dir)
checkListing(t, dir, []string{"file1,14,false", "file2,15,false", "subdir,0,true"})
node, err = vfs.Stat("")
require.NoError(t, err)
dir = node.(*Dir)
checkListing(t, dir, []string{"dir,0,true"})
node, err = vfs.Stat("dir/subdir")
require.NoError(t, err)
dir = node.(*Dir)
checkListing(t, dir, []string{"file3,16,false"})
}
func TestDirOpen(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
_, dir, _ := dirCreate(t, r)
fd, err := dir.Open(os.O_RDONLY)
require.NoError(t, err)
_, ok := fd.(*DirHandle)
assert.True(t, ok)
require.NoError(t, fd.Close())
fd, err = dir.Open(os.O_WRONLY)
assert.Equal(t, EPERM, err)
}
func TestDirCreate(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, _ := dirCreate(t, r)
file, err := dir.Create("potato", os.O_WRONLY|os.O_CREATE)
require.NoError(t, err)
assert.Equal(t, int64(0), file.Size())
fd, err := file.Open(os.O_WRONLY | os.O_CREATE)
require.NoError(t, err)
// FIXME Note that this fails with the current implementation
// until the file has been opened.
// file2, err := vfs.Stat("dir/potato")
// require.NoError(t, err)
// assert.Equal(t, file, file2)
n, err := fd.Write([]byte("hello"))
require.NoError(t, err)
assert.Equal(t, 5, n)
require.NoError(t, fd.Close())
file2, err := vfs.Stat("dir/potato")
require.NoError(t, err)
assert.Equal(t, int64(5), file2.Size())
vfs.Opt.ReadOnly = true
_, err = dir.Create("sausage", os.O_WRONLY|os.O_CREATE)
assert.Equal(t, EROFS, err)
}
func TestDirMkdir(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, file1 := dirCreate(t, r)
_, err := dir.Mkdir("file1")
assert.Error(t, err)
sub, err := dir.Mkdir("sub")
assert.NoError(t, err)
// check the vfs
checkListing(t, dir, []string{"file1,14,false", "sub,0,true"})
checkListing(t, sub, []string(nil))
// check the underlying r.Fremote
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{"dir", "dir/sub"}, r.Fremote.Precision())
vfs.Opt.ReadOnly = true
_, err = dir.Mkdir("sausage")
assert.Equal(t, EROFS, err)
}
func TestDirRemove(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, _ := dirCreate(t, r)
// check directory is there
node, err := vfs.Stat("dir")
require.NoError(t, err)
assert.True(t, node.IsDir())
err = dir.Remove()
assert.Equal(t, ENOTEMPTY, err)
// Delete the sub file
node, err = vfs.Stat("dir/file1")
require.NoError(t, err)
err = node.Remove()
require.NoError(t, err)
// Remove the now empty directory
err = dir.Remove()
require.NoError(t, err)
// check directory is not there
node, err = vfs.Stat("dir")
assert.Equal(t, ENOENT, err)
// check the vfs
root, err := vfs.Root()
require.NoError(t, err)
checkListing(t, root, []string(nil))
// check the underlying r.Fremote
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{}, []string{}, r.Fremote.Precision())
// read only check
vfs.Opt.ReadOnly = true
err = dir.Remove()
assert.Equal(t, EROFS, err)
}
func TestDirRemoveAll(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, _ := dirCreate(t, r)
// Remove the directory and contents
err := dir.RemoveAll()
require.NoError(t, err)
// check the vfs
root, err := vfs.Root()
require.NoError(t, err)
checkListing(t, root, []string(nil))
// check the underlying r.Fremote
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{}, []string{}, r.Fremote.Precision())
// read only check
vfs.Opt.ReadOnly = true
err = dir.RemoveAll()
assert.Equal(t, EROFS, err)
}
func TestDirRemoveName(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, _ := dirCreate(t, r)
err := dir.RemoveName("file1")
require.NoError(t, err)
checkListing(t, dir, []string(nil))
root, err := vfs.Root()
require.NoError(t, err)
checkListing(t, root, []string{"dir,0,true"})
// check the underlying r.Fremote
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{}, []string{"dir"}, r.Fremote.Precision())
// read only check
vfs.Opt.ReadOnly = true
err = dir.RemoveName("potato")
assert.Equal(t, EROFS, err)
}
func TestDirRename(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
vfs, dir, file1 := dirCreate(t, r)
root, err := vfs.Root()
require.NoError(t, err)
err = dir.Rename("not found", "tuba", dir)
assert.Equal(t, ENOENT, err)
// Rename a directory
err = root.Rename("dir", "dir2", root)
assert.NoError(t, err)
checkListing(t, root, []string{"dir2,0,true"})
checkListing(t, dir, []string{"file1,14,false"})
// check the underlying r.Fremote
file1.Path = "dir2/file1"
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{"dir2"}, r.Fremote.Precision())
// refetch dir
node, err := vfs.Stat("dir2")
assert.NoError(t, err)
dir = node.(*Dir)
// Rename a file
err = dir.Rename("file1", "file2", root)
assert.NoError(t, err)
checkListing(t, root, []string{"dir2,0,true", "file2,14,false"})
checkListing(t, dir, []string(nil))
// check the underlying r.Fremote
file1.Path = "file2"
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{"dir2"}, r.Fremote.Precision())
// read only check
vfs.Opt.ReadOnly = true
err = dir.Rename("potato", "tuba", dir)
assert.Equal(t, EROFS, err)
}