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vfstests: move functional tests from mountlib and make them work with VFS

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The tests are now run for the mount commands and for the plain VFS.

This makes the tests much easier to debug when running with a VFS than
through a mount.
This commit is contained in:
Nick Craig-Wood
2020-04-16 13:33:46 +01:00
parent b25f5eb0d1
commit fd39cbc193
16 changed files with 259 additions and 67 deletions
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229
cmd/mountlib/mounttest/dir.go
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@@ -1,229 +0,0 @@
package mounttest
import (
"context"
"os"
"testing"
"time"
"github.com/rclone/rclone/fs"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestDirLs checks out listing
func TestDirLs(t *testing.T) {
run.skipIfNoFUSE(t)
run.checkDir(t, "")
run.mkdir(t, "a directory")
run.createFile(t, "a file", "hello")
run.checkDir(t, "a directory/|a file 5")
run.rmdir(t, "a directory")
run.rm(t, "a file")
run.checkDir(t, "")
}
// TestDirCreateAndRemoveDir tests creating and removing a directory
func TestDirCreateAndRemoveDir(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
run.mkdir(t, "dir/subdir")
run.checkDir(t, "dir/|dir/subdir/")
// Check we can't delete a directory with stuff in
err := os.Remove(run.path("dir"))
assert.Error(t, err, "file exists")
// Now delete subdir then dir - should produce no errors
run.rmdir(t, "dir/subdir")
run.checkDir(t, "dir/")
run.rmdir(t, "dir")
run.checkDir(t, "")
}
// TestDirCreateAndRemoveFile tests creating and removing a file
func TestDirCreateAndRemoveFile(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
run.createFile(t, "dir/file", "potato")
run.checkDir(t, "dir/|dir/file 6")
// Check we can't delete a directory with stuff in
err := os.Remove(run.path("dir"))
assert.Error(t, err, "file exists")
// Now delete file
run.rm(t, "dir/file")
run.checkDir(t, "dir/")
run.rmdir(t, "dir")
run.checkDir(t, "")
}
// TestDirRenameFile tests renaming a file
func TestDirRenameFile(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
run.createFile(t, "file", "potato")
run.checkDir(t, "dir/|file 6")
err := os.Rename(run.path("file"), run.path("file2"))
require.NoError(t, err)
run.checkDir(t, "dir/|file2 6")
data := run.readFile(t, "file2")
assert.Equal(t, "potato", data)
err = os.Rename(run.path("file2"), run.path("dir/file3"))
require.NoError(t, err)
run.checkDir(t, "dir/|dir/file3 6")
data = run.readFile(t, "dir/file3")
require.NoError(t, err)
assert.Equal(t, "potato", data)
run.rm(t, "dir/file3")
run.rmdir(t, "dir")
run.checkDir(t, "")
}
// TestDirRenameEmptyDir tests renaming and empty directory
func TestDirRenameEmptyDir(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
run.mkdir(t, "dir1")
run.checkDir(t, "dir/|dir1/")
err := os.Rename(run.path("dir1"), run.path("dir/dir2"))
require.NoError(t, err)
run.checkDir(t, "dir/|dir/dir2/")
err = os.Rename(run.path("dir/dir2"), run.path("dir/dir3"))
require.NoError(t, err)
run.checkDir(t, "dir/|dir/dir3/")
run.rmdir(t, "dir/dir3")
run.rmdir(t, "dir")
run.checkDir(t, "")
}
// TestDirRenameFullDir tests renaming a full directory
func TestDirRenameFullDir(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
run.mkdir(t, "dir1")
run.createFile(t, "dir1/potato.txt", "maris piper")
run.checkDir(t, "dir/|dir1/|dir1/potato.txt 11")
err := os.Rename(run.path("dir1"), run.path("dir/dir2"))
require.NoError(t, err)
run.checkDir(t, "dir/|dir/dir2/|dir/dir2/potato.txt 11")
err = os.Rename(run.path("dir/dir2"), run.path("dir/dir3"))
require.NoError(t, err)
run.checkDir(t, "dir/|dir/dir3/|dir/dir3/potato.txt 11")
run.rm(t, "dir/dir3/potato.txt")
run.rmdir(t, "dir/dir3")
run.rmdir(t, "dir")
run.checkDir(t, "")
}
// TestDirModTime tests mod times
func TestDirModTime(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
mtime := time.Date(2012, time.November, 18, 17, 32, 31, 0, time.UTC)
err := os.Chtimes(run.path("dir"), mtime, mtime)
require.NoError(t, err)
info, err := os.Stat(run.path("dir"))
require.NoError(t, err)
// avoid errors because of timezone differences
assert.Equal(t, info.ModTime().Unix(), mtime.Unix())
run.rmdir(t, "dir")
}
// TestDirCacheFlush tests fluching the dir cache
func TestDirCacheFlush(t *testing.T) {
run.skipIfNoFUSE(t)
run.checkDir(t, "")
run.mkdir(t, "dir")
run.mkdir(t, "otherdir")
run.createFile(t, "dir/file", "1")
run.createFile(t, "otherdir/file", "1")
dm := newDirMap("otherdir/|otherdir/file 1|dir/|dir/file 1")
localDm := make(dirMap)
run.readLocal(t, localDm, "")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
err := run.fremote.Mkdir(context.Background(), "dir/subdir")
require.NoError(t, err)
root, err := run.vfs.Root()
require.NoError(t, err)
// expect newly created "subdir" on remote to not show up
root.ForgetPath("otherdir", fs.EntryDirectory)
run.readLocal(t, localDm, "")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
root.ForgetPath("dir", fs.EntryDirectory)
dm = newDirMap("otherdir/|otherdir/file 1|dir/|dir/file 1|dir/subdir/")
run.readLocal(t, localDm, "")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
run.rm(t, "otherdir/file")
run.rmdir(t, "otherdir")
run.rm(t, "dir/file")
run.rmdir(t, "dir/subdir")
run.rmdir(t, "dir")
run.checkDir(t, "")
}
// TestDirCacheFlushOnDirRename tests flushing the dir cache on rename
func TestDirCacheFlushOnDirRename(t *testing.T) {
run.skipIfNoFUSE(t)
run.mkdir(t, "dir")
run.createFile(t, "dir/file", "1")
dm := newDirMap("dir/|dir/file 1")
localDm := make(dirMap)
run.readLocal(t, localDm, "")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
// expect remotely created directory to not show up
err := run.fremote.Mkdir(context.Background(), "dir/subdir")
require.NoError(t, err)
run.readLocal(t, localDm, "")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
err = os.Rename(run.path("dir"), run.path("rid"))
require.NoError(t, err)
dm = newDirMap("rid/|rid/subdir/|rid/file 1")
localDm = make(dirMap)
run.readLocal(t, localDm, "")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
run.rm(t, "rid/file")
run.rmdir(t, "rid/subdir")
run.rmdir(t, "rid")
run.checkDir(t, "")
}

61
cmd/mountlib/mounttest/edge_cases.go
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@@ -1,61 +0,0 @@
package mounttest
import (
"os"
"runtime"
"testing"
"github.com/stretchr/testify/require"
)
// TestTouchAndDelete checks that writing a zero byte file and immediately
// deleting it is not racy. See https://github.com/rclone/rclone/issues/1181
func TestTouchAndDelete(t *testing.T) {
run.skipIfNoFUSE(t)
run.checkDir(t, "")
run.createFile(t, "touched", "")
run.rm(t, "touched")
run.checkDir(t, "")
}
// TestRenameOpenHandle checks that a file with open writers is successfully
// renamed after all writers close. See https://github.com/rclone/rclone/issues/2130
func TestRenameOpenHandle(t *testing.T) {
run.skipIfNoFUSE(t)
if runtime.GOOS == "windows" {
t.Skip("Skipping test on Windows")
}
run.checkDir(t, "")
// create file
example := []byte("Some Data")
path := run.path("rename")
file, err := osCreate(path)
require.NoError(t, err)
// write some data
_, err = file.Write(example)
require.NoError(t, err)
err = file.Sync()
require.NoError(t, err)
// attempt to rename open file
err = os.Rename(path, path+"bla")
require.NoError(t, err)
// close open writers to allow rename on remote to go through
err = file.Close()
require.NoError(t, err)
run.waitForWriters()
// verify file was renamed properly
run.checkDir(t, "renamebla 9")
// cleanup
run.rm(t, "renamebla")
run.checkDir(t, "")
}

73
cmd/mountlib/mounttest/file.go
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@@ -1,73 +0,0 @@
package mounttest
import (
"os"
"runtime"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestFileModTime tests mod times on files
func TestFileModTime(t *testing.T) {
run.skipIfNoFUSE(t)
run.createFile(t, "file", "123")
mtime := time.Date(2012, time.November, 18, 17, 32, 31, 0, time.UTC)
err := os.Chtimes(run.path("file"), mtime, mtime)
require.NoError(t, err)
info, err := os.Stat(run.path("file"))
require.NoError(t, err)
// avoid errors because of timezone differences
assert.Equal(t, info.ModTime().Unix(), mtime.Unix())
run.rm(t, "file")
}
// os.Create without opening for write too
func osCreate(name string) (*os.File, error) {
return os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
}
// os.Create with append
func osAppend(name string) (*os.File, error) {
return os.OpenFile(name, os.O_WRONLY|os.O_APPEND, 0666)
}
// TestFileModTimeWithOpenWriters tests mod time on open files
func TestFileModTimeWithOpenWriters(t *testing.T) {
run.skipIfNoFUSE(t)
if runtime.GOOS == "windows" {
t.Skip("Skipping test on Windows")
}
mtime := time.Date(2012, time.November, 18, 17, 32, 31, 0, time.UTC)
filepath := run.path("cp-archive-test")
f, err := osCreate(filepath)
require.NoError(t, err)
_, err = f.Write([]byte{104, 105})
require.NoError(t, err)
err = os.Chtimes(filepath, mtime, mtime)
require.NoError(t, err)
err = f.Close()
require.NoError(t, err)
run.waitForWriters()
info, err := os.Stat(filepath)
require.NoError(t, err)
// avoid errors because of timezone differences
assert.Equal(t, info.ModTime().Unix(), mtime.Unix())
run.rm(t, "cp-archive-test")
}

441
cmd/mountlib/mounttest/fs.go
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@@ -1,441 +0,0 @@
// Test suite for rclonefs
package mounttest
import (
"context"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"os"
"os/exec"
"path"
"path/filepath"
"reflect"
"runtime"
"strings"
"testing"
"time"
_ "github.com/rclone/rclone/backend/all" // import all the backends
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/walk"
"github.com/rclone/rclone/fstest"
"github.com/rclone/rclone/lib/file"
"github.com/rclone/rclone/vfs"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type (
// UnmountFn is called to unmount the file system
UnmountFn func() error
// MountFn is called to mount the file system
MountFn func(f fs.Fs, mountpoint string) (*vfs.VFS, <-chan error, func() error, error)
)
var (
mountFn MountFn
)
// RunTests runs all the tests against all the VFS cache modes
func RunTests(t *testing.T, fn MountFn) {
mountFn = fn
flag.Parse()
cacheModes := []vfs.CacheMode{
vfs.CacheModeOff,
vfs.CacheModeMinimal,
vfs.CacheModeWrites,
vfs.CacheModeFull,
}
run = newRun()
for _, cacheMode := range cacheModes {
run.cacheMode(cacheMode)
log.Printf("Starting test run with cache mode %v", cacheMode)
ok := t.Run(fmt.Sprintf("CacheMode=%v", cacheMode), func(t *testing.T) {
t.Run("TestTouchAndDelete", TestTouchAndDelete)
t.Run("TestRenameOpenHandle", TestRenameOpenHandle)
t.Run("TestDirLs", TestDirLs)
t.Run("TestDirCreateAndRemoveDir", TestDirCreateAndRemoveDir)
t.Run("TestDirCreateAndRemoveFile", TestDirCreateAndRemoveFile)
t.Run("TestDirRenameFile", TestDirRenameFile)
t.Run("TestDirRenameEmptyDir", TestDirRenameEmptyDir)
t.Run("TestDirRenameFullDir", TestDirRenameFullDir)
t.Run("TestDirModTime", TestDirModTime)
t.Run("TestDirCacheFlush", TestDirCacheFlush)
t.Run("TestDirCacheFlushOnDirRename", TestDirCacheFlushOnDirRename)
t.Run("TestFileModTime", TestFileModTime)
t.Run("TestFileModTimeWithOpenWriters", TestFileModTimeWithOpenWriters)
t.Run("TestMount", TestMount)
t.Run("TestRoot", TestRoot)
t.Run("TestReadByByte", TestReadByByte)
t.Run("TestReadChecksum", TestReadChecksum)
t.Run("TestReadFileDoubleClose", TestReadFileDoubleClose)
t.Run("TestReadSeek", TestReadSeek)
t.Run("TestWriteFileNoWrite", TestWriteFileNoWrite)
t.Run("TestWriteFileWrite", TestWriteFileWrite)
t.Run("TestWriteFileOverwrite", TestWriteFileOverwrite)
t.Run("TestWriteFileDoubleClose", TestWriteFileDoubleClose)
t.Run("TestWriteFileFsync", TestWriteFileFsync)
t.Run("TestWriteFileDup", TestWriteFileDup)
t.Run("TestWriteFileAppend", TestWriteFileAppend)
})
log.Printf("Finished test run with cache mode %v (ok=%v)", cacheMode, ok)
if !ok {
break
}
}
run.Finalise()
}
// Run holds the remotes for a test run
type Run struct {
vfs *vfs.VFS
mountPath string
fremote fs.Fs
fremoteName string
cleanRemote func()
umountResult <-chan error
umountFn UnmountFn
skip bool
}
// run holds the master Run data
var run *Run
// newRun initialise the remote mount for testing and returns a run
// object.
//
// r.fremote is an empty remote Fs
//
// Finalise() will tidy them away when done.
func newRun() *Run {
r := &Run{
umountResult: make(chan error, 1),
}
fstest.Initialise()
var err error
r.fremote, r.fremoteName, r.cleanRemote, err = fstest.RandomRemote()
if err != nil {
log.Fatalf("Failed to open remote %q: %v", *fstest.RemoteName, err)
}
err = r.fremote.Mkdir(context.Background(), "")
if err != nil {
log.Fatalf("Failed to open mkdir %q: %v", *fstest.RemoteName, err)
}
r.mountPath = findMountPath()
// Mount it up
r.mount()
return r
}
func findMountPath() string {
if runtime.GOOS != "windows" {
mountPath, err := ioutil.TempDir("", "rclonefs-mount")
if err != nil {
log.Fatalf("Failed to create mount dir: %v", err)
}
return mountPath
}
// Find a free drive letter
drive := ""
for letter := 'E'; letter <= 'Z'; letter++ {
drive = string(letter) + ":"
_, err := os.Stat(drive + "\\")
if os.IsNotExist(err) {
goto found
}
}
log.Fatalf("Couldn't find free drive letter for test")
found:
return drive
}
func (r *Run) mount() {
log.Printf("mount %q %q", r.fremote, r.mountPath)
var err error
r.vfs, r.umountResult, r.umountFn, err = mountFn(r.fremote, r.mountPath)
if err != nil {
log.Printf("mount FAILED: %v", err)
r.skip = true
} else {
log.Printf("mount OK")
}
}
func (r *Run) umount() {
if r.skip {
log.Printf("FUSE not found so skipping umount")
return
}
/*
log.Printf("Calling fusermount -u %q", r.mountPath)
err := exec.Command("fusermount", "-u", r.mountPath).Run()
if err != nil {
log.Printf("fusermount failed: %v", err)
}
*/
log.Printf("Unmounting %q", r.mountPath)
err := r.umountFn()
if err != nil {
log.Printf("signal to umount failed - retrying: %v", err)
time.Sleep(3 * time.Second)
err = r.umountFn()
}
if err != nil {
log.Fatalf("signal to umount failed: %v", err)
}
log.Printf("Waiting for umount")
err = <-r.umountResult
if err != nil {
log.Fatalf("umount failed: %v", err)
}
// Cleanup the VFS cache - umount has called Shutdown
err = r.vfs.CleanUp()
if err != nil {
log.Printf("Failed to cleanup the VFS cache: %v", err)
}
}
// cacheMode flushes the VFS and changes the CacheMode
func (r *Run) cacheMode(cacheMode vfs.CacheMode) {
if r.skip {
log.Printf("FUSE not found so skipping cacheMode")
return
}
// Wait for writers to finish
r.vfs.WaitForWriters(30 * time.Second)
// Empty and remake the remote
r.cleanRemote()
err := r.fremote.Mkdir(context.Background(), "")
if err != nil {
log.Fatalf("Failed to open mkdir %q: %v", *fstest.RemoteName, err)
}
// Empty the cache
err = r.vfs.CleanUp()
if err != nil {
log.Printf("Failed to cleanup the VFS cache: %v", err)
}
// Reset the cache mode
r.vfs.SetCacheMode(cacheMode)
// Flush the directory cache
r.vfs.FlushDirCache()
}
func (r *Run) skipIfNoFUSE(t *testing.T) {
if r.skip {
t.Skip("FUSE not found so skipping test")
}
}
// Finalise cleans the remote and unmounts
func (r *Run) Finalise() {
r.umount()
r.cleanRemote()
err := os.RemoveAll(r.mountPath)
if err != nil {
log.Printf("Failed to clean mountPath %q: %v", r.mountPath, err)
}
}
// path returns an OS local path for filepath
func (r *Run) path(filePath string) string {
// return windows drive letter root as E:\
if filePath == "" && runtime.GOOS == "windows" {
return run.mountPath + `\`
}
return filepath.Join(run.mountPath, filepath.FromSlash(filePath))
}
type dirMap map[string]struct{}
// Create a dirMap from a string
func newDirMap(dirString string) (dm dirMap) {
dm = make(dirMap)
for _, entry := range strings.Split(dirString, "|") {
if entry != "" {
dm[entry] = struct{}{}
}
}
return dm
}
// Returns a dirmap with only the files in
func (dm dirMap) filesOnly() dirMap {
newDm := make(dirMap)
for name := range dm {
if !strings.HasSuffix(name, "/") {
newDm[name] = struct{}{}
}
}
return newDm
}
// reads the local tree into dir
func (r *Run) readLocal(t *testing.T, dir dirMap, filePath string) {
realPath := r.path(filePath)
files, err := ioutil.ReadDir(realPath)
require.NoError(t, err)
for _, fi := range files {
name := path.Join(filePath, fi.Name())
if fi.IsDir() {
dir[name+"/"] = struct{}{}
r.readLocal(t, dir, name)
assert.Equal(t, run.vfs.Opt.DirPerms&os.ModePerm, fi.Mode().Perm())
} else {
dir[fmt.Sprintf("%s %d", name, fi.Size())] = struct{}{}
assert.Equal(t, run.vfs.Opt.FilePerms&os.ModePerm, fi.Mode().Perm())
}
}
}
// reads the remote tree into dir
func (r *Run) readRemote(t *testing.T, dir dirMap, filepath string) {
objs, dirs, err := walk.GetAll(context.Background(), r.fremote, filepath, true, 1)
if err == fs.ErrorDirNotFound {
return
}
require.NoError(t, err)
for _, obj := range objs {
dir[fmt.Sprintf("%s %d", obj.Remote(), obj.Size())] = struct{}{}
}
for _, d := range dirs {
name := d.Remote()
dir[name+"/"] = struct{}{}
r.readRemote(t, dir, name)
}
}
// checkDir checks the local and remote against the string passed in
func (r *Run) checkDir(t *testing.T, dirString string) {
var retries = *fstest.ListRetries
sleep := time.Second / 5
var remoteOK, fuseOK bool
var dm, localDm, remoteDm dirMap
for i := 1; i <= retries; i++ {
dm = newDirMap(dirString)
localDm = make(dirMap)
r.readLocal(t, localDm, "")
remoteDm = make(dirMap)
r.readRemote(t, remoteDm, "")
// Ignore directories for remote compare
remoteOK = reflect.DeepEqual(dm.filesOnly(), remoteDm.filesOnly())
fuseOK = reflect.DeepEqual(dm, localDm)
if remoteOK && fuseOK {
return
}
sleep *= 2
t.Logf("Sleeping for %v for list eventual consistency: %d/%d", sleep, i, retries)
time.Sleep(sleep)
}
assert.Equal(t, dm.filesOnly(), remoteDm.filesOnly(), "expected vs remote")
assert.Equal(t, dm, localDm, "expected vs fuse mount")
}
// wait for any files being written to be released by fuse
func (r *Run) waitForWriters() {
run.vfs.WaitForWriters(10 * time.Second)
}
// writeFile writes data to a file named by filename.
// If the file does not exist, WriteFile creates it with permissions perm;
// otherwise writeFile truncates it before writing.
// If there is an error writing then writeFile
// deletes it an existing file and tries again.
func writeFile(filename string, data []byte, perm os.FileMode) error {
f, err := file.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
if err != nil {
err = os.Remove(filename)
if err != nil {
return err
}
f, err = file.OpenFile(filename, os.O_WRONLY|os.O_CREATE, perm)
if err != nil {
return err
}
}
n, err := f.Write(data)
if err == nil && n < len(data) {
err = io.ErrShortWrite
}
if err1 := f.Close(); err == nil {
err = err1
}
return err
}
func (r *Run) createFile(t *testing.T, filepath string, contents string) {
filepath = r.path(filepath)
err := writeFile(filepath, []byte(contents), 0600)
require.NoError(t, err)
r.waitForWriters()
}
func (r *Run) readFile(t *testing.T, filepath string) string {
filepath = r.path(filepath)
result, err := ioutil.ReadFile(filepath)
require.NoError(t, err)
time.Sleep(100 * time.Millisecond) // FIXME wait for Release
return string(result)
}
func (r *Run) mkdir(t *testing.T, filepath string) {
filepath = r.path(filepath)
err := os.Mkdir(filepath, 0700)
require.NoError(t, err)
}
func (r *Run) rm(t *testing.T, filepath string) {
filepath = r.path(filepath)
err := os.Remove(filepath)
require.NoError(t, err)
// Wait for file to disappear from listing
for i := 0; i < 100; i++ {
_, err := os.Stat(filepath)
if os.IsNotExist(err) {
return
}
time.Sleep(100 * time.Millisecond)
}
assert.Fail(t, "failed to delete file", filepath)
}
func (r *Run) rmdir(t *testing.T, filepath string) {
filepath = r.path(filepath)
err := os.Remove(filepath)
require.NoError(t, err)
}
// TestMount checks that the Fs is mounted by seeing if the mountpoint
// is in the mount output
func TestMount(t *testing.T) {
run.skipIfNoFUSE(t)
if runtime.GOOS == "windows" {
t.Skip("not running on windows")
}
out, err := exec.Command("mount").Output()
require.NoError(t, err)
assert.Contains(t, string(out), run.mountPath)
}
// TestRoot checks root directory is present and correct
func TestRoot(t *testing.T) {
run.skipIfNoFUSE(t)
fi, err := os.Lstat(run.mountPath)
require.NoError(t, err)
assert.True(t, fi.IsDir())
assert.Equal(t, run.vfs.Opt.DirPerms&os.ModePerm, fi.Mode().Perm())
}

127
cmd/mountlib/mounttest/read.go
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@@ -1,127 +0,0 @@
package mounttest
import (
"io"
"io/ioutil"
"os"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
// TestReadByByte reads by byte including don't read any bytes
func TestReadByByte(t *testing.T) {
run.skipIfNoFUSE(t)
var data = []byte("hellohello")
run.createFile(t, "testfile", string(data))
run.checkDir(t, "testfile 10")
for i := 0; i < len(data); i++ {
fd, err := os.Open(run.path("testfile"))
assert.NoError(t, err)
for j := 0; j < i; j++ {
buf := make([]byte, 1)
n, err := io.ReadFull(fd, buf)
assert.NoError(t, err)
assert.Equal(t, 1, n)
assert.Equal(t, buf[0], data[j])
}
err = fd.Close()
assert.NoError(t, err)
}
time.Sleep(100 * time.Millisecond) // FIXME wait for Release
run.rm(t, "testfile")
}
// TestReadChecksum checks the checksum reading is working
func TestReadChecksum(t *testing.T) {
run.skipIfNoFUSE(t)
// create file big enough so we exceed any single FUSE read
// request
b := make([]rune, 3*128*1024)
for i := range b {
b[i] = 'r'
}
run.createFile(t, "bigfile", string(b))
// The hash comparison would fail in Flush, if we did not
// ensure we read the whole file
fd, err := os.Open(run.path("bigfile"))
assert.NoError(t, err)
buf := make([]byte, 10)
_, err = io.ReadFull(fd, buf)
assert.NoError(t, err)
err = fd.Close()
assert.NoError(t, err)
// The hash comparison would fail, because we only read parts
// of the file
fd, err = os.Open(run.path("bigfile"))
assert.NoError(t, err)
// read at start
_, err = io.ReadFull(fd, buf)
assert.NoError(t, err)
// read at end
_, err = fd.Seek(int64(len(b)-len(buf)), io.SeekStart)
assert.NoError(t, err)
_, err = io.ReadFull(fd, buf)
assert.NoError(t, err)
// ensure we don't compare hashes
err = fd.Close()
assert.NoError(t, err)
run.rm(t, "bigfile")
}
// TestReadSeek test seeking
func TestReadSeek(t *testing.T) {
run.skipIfNoFUSE(t)
var data = []byte("helloHELLO")
run.createFile(t, "testfile", string(data))
run.checkDir(t, "testfile 10")
fd, err := os.Open(run.path("testfile"))
assert.NoError(t, err)
// Seek to half way
_, err = fd.Seek(5, io.SeekStart)
assert.NoError(t, err)
buf, err := ioutil.ReadAll(fd)
assert.NoError(t, err)
assert.Equal(t, buf, []byte("HELLO"))
// Test seeking to the end
_, err = fd.Seek(10, io.SeekStart)
assert.NoError(t, err)
buf, err = ioutil.ReadAll(fd)
assert.NoError(t, err)
assert.Equal(t, buf, []byte(""))
// Test seeking beyond the end
_, err = fd.Seek(1000000, io.SeekStart)
assert.NoError(t, err)
buf, err = ioutil.ReadAll(fd)
assert.NoError(t, err)
assert.Equal(t, buf, []byte(""))
// Now back to the start
_, err = fd.Seek(0, io.SeekStart)
assert.NoError(t, err)
buf, err = ioutil.ReadAll(fd)
assert.NoError(t, err)
assert.Equal(t, buf, []byte("helloHELLO"))
err = fd.Close()
assert.NoError(t, err)
run.rm(t, "testfile")
}

13
cmd/mountlib/mounttest/read_non_unix.go
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@@ -1,13 +0,0 @@
// +build !linux,!darwin,!freebsd
package mounttest
import (
"runtime"
"testing"
)
// TestReadFileDoubleClose tests double close on read
func TestReadFileDoubleClose(t *testing.T) {
t.Skip("not supported on " + runtime.GOOS)
}

53
cmd/mountlib/mounttest/read_unix.go
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@@ -1,53 +0,0 @@
// +build linux darwin freebsd
package mounttest
import (
"os"
"syscall"
"testing"
"github.com/stretchr/testify/assert"
)
// TestReadFileDoubleClose tests double close on read
func TestReadFileDoubleClose(t *testing.T) {
run.skipIfNoFUSE(t)
run.createFile(t, "testdoubleclose", "hello")
in, err := os.Open(run.path("testdoubleclose"))
assert.NoError(t, err)
fd := in.Fd()
fd1, err := syscall.Dup(int(fd))
assert.NoError(t, err)
fd2, err := syscall.Dup(int(fd))
assert.NoError(t, err)
// close one of the dups - should produce no error
err = syscall.Close(fd1)
assert.NoError(t, err)
// read from the file
buf := make([]byte, 1)
_, err = in.Read(buf)
assert.NoError(t, err)
// close it
err = in.Close()
assert.NoError(t, err)
// read from the other dup - should produce no error as this
// file is now buffered
n, err := syscall.Read(fd2, buf)
assert.NoError(t, err)
assert.Equal(t, 1, n)
// close the dup - should not produce an error
err = syscall.Close(fd2)
assert.NoError(t, err, "input/output error")
run.rm(t, "testdoubleclose")
}

178
cmd/mountlib/mounttest/write.go
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@@ -1,178 +0,0 @@
package mounttest
import (
"os"
"runtime"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/rclone/rclone/vfs"
)
// TestWriteFileNoWrite tests writing a file with no write()'s to it
func TestWriteFileNoWrite(t *testing.T) {
run.skipIfNoFUSE(t)
fd, err := osCreate(run.path("testnowrite"))
assert.NoError(t, err)
err = fd.Close()
assert.NoError(t, err)
run.waitForWriters()
run.checkDir(t, "testnowrite 0")
run.rm(t, "testnowrite")
}
// FIXMETestWriteOpenFileInDirListing tests open file in directory listing
func FIXMETestWriteOpenFileInDirListing(t *testing.T) {
run.skipIfNoFUSE(t)
fd, err := osCreate(run.path("testnowrite"))
assert.NoError(t, err)
run.checkDir(t, "testnowrite 0")
err = fd.Close()
assert.NoError(t, err)
run.waitForWriters()
run.rm(t, "testnowrite")
}
// TestWriteFileWrite tests writing a file and reading it back
func TestWriteFileWrite(t *testing.T) {
run.skipIfNoFUSE(t)
run.createFile(t, "testwrite", "data")
run.checkDir(t, "testwrite 4")
contents := run.readFile(t, "testwrite")
assert.Equal(t, "data", contents)
run.rm(t, "testwrite")
}
// TestWriteFileOverwrite tests overwriting a file
func TestWriteFileOverwrite(t *testing.T) {
run.skipIfNoFUSE(t)
run.createFile(t, "testwrite", "data")
run.checkDir(t, "testwrite 4")
run.createFile(t, "testwrite", "potato")
contents := run.readFile(t, "testwrite")
assert.Equal(t, "potato", contents)
run.rm(t, "testwrite")
}
// TestWriteFileFsync tests Fsync
//
// NB the code for this is in file.go rather than write.go
func TestWriteFileFsync(t *testing.T) {
run.skipIfNoFUSE(t)
filepath := run.path("to be synced")
fd, err := osCreate(filepath)
require.NoError(t, err)
_, err = fd.Write([]byte("hello"))
require.NoError(t, err)
err = fd.Sync()
require.NoError(t, err)
err = fd.Close()
require.NoError(t, err)
run.waitForWriters()
run.rm(t, "to be synced")
}
// TestWriteFileDup tests behavior of mmap() in Python by using dup() on a file handle
func TestWriteFileDup(t *testing.T) {
run.skipIfNoFUSE(t)
if run.vfs.Opt.CacheMode < vfs.CacheModeWrites {
t.Skip("not supported on vfs-cache-mode < writes")
return
}
filepath := run.path("to be synced")
fh, err := osCreate(filepath)
require.NoError(t, err)
testData := []byte("0123456789")
err = fh.Truncate(int64(len(testData) + 2))
require.NoError(t, err)
err = fh.Sync()
require.NoError(t, err)
var dupFd uintptr
dupFd, err = writeTestDup(fh.Fd())
require.NoError(t, err)
dupFile := os.NewFile(dupFd, fh.Name())
_, err = dupFile.Write(testData)
require.NoError(t, err)
err = dupFile.Close()
require.NoError(t, err)
_, err = fh.Seek(int64(len(testData)), 0)
require.NoError(t, err)
_, err = fh.Write([]byte("10"))
require.NoError(t, err)
err = fh.Close()
require.NoError(t, err)
run.waitForWriters()
run.rm(t, "to be synced")
}
// TestWriteFileAppend tests that O_APPEND works on cache backends >= writes
func TestWriteFileAppend(t *testing.T) {
run.skipIfNoFUSE(t)
if run.vfs.Opt.CacheMode < vfs.CacheModeWrites {
t.Skip("not supported on vfs-cache-mode < writes")
return
}
// TODO: Windows needs the v1.5 release of WinFsp to handle O_APPEND properly.
// Until it gets released, skip this test on Windows.
if runtime.GOOS == "windows" {
t.Skip("currently unsupported on Windows")
}
filepath := run.path("to be synced")
fh, err := osCreate(filepath)
require.NoError(t, err)
testData := []byte("0123456789")
appendData := []byte("10")
_, err = fh.Write(testData)
require.NoError(t, err)
err = fh.Close()
require.NoError(t, err)
fh, err = osAppend(filepath)
require.NoError(t, err)
_, err = fh.Write(appendData)
require.NoError(t, err)
err = fh.Close()
require.NoError(t, err)
info, err := os.Stat(filepath)
require.NoError(t, err)
require.EqualValues(t, len(testData)+len(appendData), info.Size())
run.waitForWriters()
run.rm(t, "to be synced")
}

25
cmd/mountlib/mounttest/write_non_unix.go
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@@ -1,25 +0,0 @@
// +build !linux,!darwin,!freebsd
package mounttest
import (
"runtime"
"testing"
"golang.org/x/sys/windows"
)
// TestWriteFileDoubleClose tests double close on write
func TestWriteFileDoubleClose(t *testing.T) {
t.Skip("not supported on " + runtime.GOOS)
}
// writeTestDup performs the platform-specific implementation of the dup() syscall
func writeTestDup(oldfd uintptr) (uintptr, error) {
p, err := windows.GetCurrentProcess()
if err != nil {
return 0, err
}
var h windows.Handle
return uintptr(h), windows.DuplicateHandle(p, windows.Handle(oldfd), p, &h, 0, true, windows.DUPLICATE_SAME_ACCESS)
}

68
cmd/mountlib/mounttest/write_unix.go
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@@ -1,68 +0,0 @@
// +build linux darwin freebsd
package mounttest
import (
"runtime"
"testing"
"github.com/stretchr/testify/assert"
"golang.org/x/sys/unix"
"github.com/rclone/rclone/vfs"
)
// TestWriteFileDoubleClose tests double close on write
func TestWriteFileDoubleClose(t *testing.T) {
run.skipIfNoFUSE(t)
if runtime.GOOS == "darwin" {
t.Skip("Skipping test on OSX")
}
out, err := osCreate(run.path("testdoubleclose"))
assert.NoError(t, err)
fd := out.Fd()
fd1, err := unix.Dup(int(fd))
assert.NoError(t, err)
fd2, err := unix.Dup(int(fd))
assert.NoError(t, err)
// close one of the dups - should produce no error
err = unix.Close(fd1)
assert.NoError(t, err)
// write to the file
buf := []byte("hello")
n, err := out.Write(buf)
assert.NoError(t, err)
assert.Equal(t, 5, n)
// close it
err = out.Close()
assert.NoError(t, err)
// write to the other dup
_, err = unix.Write(fd2, buf)
if run.vfs.Opt.CacheMode < vfs.CacheModeWrites {
// produces an error if cache mode < writes
assert.Error(t, err, "input/output error")
} else {
// otherwise does not produce an error
assert.NoError(t, err)
}
// close the dup - should not produce an error
err = unix.Close(fd2)
assert.NoError(t, err)
run.waitForWriters()
run.rm(t, "testdoubleclose")
}
// writeTestDup performs the platform-specific implementation of the dup() unix
func writeTestDup(oldfd uintptr) (uintptr, error) {
newfd, err := unix.Dup(int(oldfd))
return uintptr(newfd), err
}