mirror of
https://github.com/rclone/rclone.git
synced 2024-12-23 15:38:57 +01:00
e43b5ce5e5
This is possible now that we no longer support go1.12 and brings rclone into line with standard practices in the Go world. This also removes errors.New and errors.Errorf from lib/errors and prefers the stdlib errors package over lib/errors.
331 lines
8.3 KiB
Go
331 lines
8.3 KiB
Go
package vfs
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"io"
|
|
"os"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/rclone/rclone/fs"
|
|
"github.com/rclone/rclone/fstest"
|
|
"github.com/rclone/rclone/lib/random"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
// Open a file for write
|
|
func writeHandleCreate(t *testing.T) (r *fstest.Run, vfs *VFS, fh *WriteFileHandle, cleanup func()) {
|
|
r, vfs, cleanup = newTestVFS(t)
|
|
|
|
h, err := vfs.OpenFile("file1", os.O_WRONLY|os.O_CREATE, 0777)
|
|
require.NoError(t, err)
|
|
fh, ok := h.(*WriteFileHandle)
|
|
require.True(t, ok)
|
|
|
|
return r, vfs, fh, cleanup
|
|
}
|
|
|
|
func TestWriteFileHandleMethods(t *testing.T) {
|
|
r, vfs, fh, cleanup := writeHandleCreate(t)
|
|
defer cleanup()
|
|
|
|
// String
|
|
assert.Equal(t, "file1 (w)", fh.String())
|
|
assert.Equal(t, "<nil *WriteFileHandle>", (*WriteFileHandle)(nil).String())
|
|
assert.Equal(t, "<nil *WriteFileHandle.file>", new(WriteFileHandle).String())
|
|
|
|
// Node
|
|
node := fh.Node()
|
|
assert.Equal(t, "file1", node.Name())
|
|
|
|
// Offset #1
|
|
assert.Equal(t, int64(0), fh.Offset())
|
|
assert.Equal(t, int64(0), node.Size())
|
|
|
|
// Write (smoke test only since heavy lifting done in WriteAt)
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// Offset #2
|
|
assert.Equal(t, int64(5), fh.Offset())
|
|
assert.Equal(t, int64(5), node.Size())
|
|
|
|
// Stat
|
|
var fi os.FileInfo
|
|
fi, err = fh.Stat()
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(5), fi.Size())
|
|
assert.Equal(t, "file1", fi.Name())
|
|
|
|
// Read
|
|
var buf = make([]byte, 16)
|
|
_, err = fh.Read(buf)
|
|
assert.Equal(t, EPERM, err)
|
|
|
|
// ReadAt
|
|
_, err = fh.ReadAt(buf, 0)
|
|
assert.Equal(t, EPERM, err)
|
|
|
|
// Sync
|
|
err = fh.Sync()
|
|
assert.NoError(t, err)
|
|
|
|
// Truncate - can only truncate where the file pointer is
|
|
err = fh.Truncate(5)
|
|
assert.NoError(t, err)
|
|
err = fh.Truncate(6)
|
|
assert.Equal(t, EPERM, err)
|
|
|
|
// Close
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// Check double close
|
|
err = fh.Close()
|
|
assert.Equal(t, ECLOSED, err)
|
|
|
|
// check vfs
|
|
root, err := vfs.Root()
|
|
require.NoError(t, err)
|
|
checkListing(t, root, []string{"file1,5,false"})
|
|
|
|
// check the underlying r.Fremote but not the modtime
|
|
file1 := fstest.NewItem("file1", "hello", t1)
|
|
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{}, fs.ModTimeNotSupported)
|
|
|
|
// Check trying to open the file now it exists then closing it
|
|
// immediately is OK
|
|
h, err := vfs.OpenFile("file1", os.O_WRONLY|os.O_CREATE, 0777)
|
|
require.NoError(t, err)
|
|
assert.NoError(t, h.Close())
|
|
checkListing(t, root, []string{"file1,5,false"})
|
|
|
|
// Check trying to open the file and writing it now it exists
|
|
// returns an error
|
|
h, err = vfs.OpenFile("file1", os.O_WRONLY|os.O_CREATE, 0777)
|
|
require.NoError(t, err)
|
|
_, err = h.Write([]byte("hello1"))
|
|
require.Equal(t, EPERM, err)
|
|
assert.NoError(t, h.Close())
|
|
checkListing(t, root, []string{"file1,5,false"})
|
|
|
|
// Check opening the file with O_TRUNC does actually truncate
|
|
// it even if we don't write to it
|
|
h, err = vfs.OpenFile("file1", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0777)
|
|
require.NoError(t, err)
|
|
err = h.Close()
|
|
if !errors.Is(err, fs.ErrorCantUploadEmptyFiles) {
|
|
assert.NoError(t, err)
|
|
checkListing(t, root, []string{"file1,0,false"})
|
|
}
|
|
|
|
// Check opening the file with O_TRUNC and writing does work
|
|
h, err = vfs.OpenFile("file1", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0777)
|
|
require.NoError(t, err)
|
|
_, err = h.WriteString("hello12")
|
|
require.NoError(t, err)
|
|
assert.NoError(t, h.Close())
|
|
checkListing(t, root, []string{"file1,7,false"})
|
|
}
|
|
|
|
func TestWriteFileHandleWriteAt(t *testing.T) {
|
|
r, vfs, fh, cleanup := writeHandleCreate(t)
|
|
defer cleanup()
|
|
|
|
// Preconditions
|
|
assert.Equal(t, int64(0), fh.offset)
|
|
assert.False(t, fh.writeCalled)
|
|
|
|
// Write the data
|
|
n, err := fh.WriteAt([]byte("hello"), 0)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// After write
|
|
assert.Equal(t, int64(5), fh.offset)
|
|
assert.True(t, fh.writeCalled)
|
|
|
|
// Check can't seek
|
|
n, err = fh.WriteAt([]byte("hello"), 100)
|
|
assert.Equal(t, ESPIPE, err)
|
|
assert.Equal(t, 0, n)
|
|
|
|
// Write more data
|
|
n, err = fh.WriteAt([]byte(" world"), 5)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 6, n)
|
|
|
|
// Close
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// Check can't write on closed handle
|
|
n, err = fh.WriteAt([]byte("hello"), 0)
|
|
assert.Equal(t, ECLOSED, err)
|
|
assert.Equal(t, 0, n)
|
|
|
|
// check vfs
|
|
root, err := vfs.Root()
|
|
require.NoError(t, err)
|
|
checkListing(t, root, []string{"file1,11,false"})
|
|
|
|
// check the underlying r.Fremote but not the modtime
|
|
file1 := fstest.NewItem("file1", "hello world", t1)
|
|
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{}, fs.ModTimeNotSupported)
|
|
}
|
|
|
|
func TestWriteFileHandleFlush(t *testing.T) {
|
|
_, vfs, fh, cleanup := writeHandleCreate(t)
|
|
defer cleanup()
|
|
|
|
// Check Flush already creates file for unwritten handles, without closing it
|
|
err := fh.Flush()
|
|
assert.NoError(t, err)
|
|
assert.False(t, fh.closed)
|
|
root, err := vfs.Root()
|
|
assert.NoError(t, err)
|
|
checkListing(t, root, []string{"file1,0,false"})
|
|
|
|
// Write some data
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// Check Flush closes file if write called
|
|
err = fh.Flush()
|
|
assert.NoError(t, err)
|
|
assert.True(t, fh.closed)
|
|
|
|
// Check flush does nothing if called again
|
|
err = fh.Flush()
|
|
assert.NoError(t, err)
|
|
assert.True(t, fh.closed)
|
|
|
|
// Check file was written properly
|
|
root, err = vfs.Root()
|
|
assert.NoError(t, err)
|
|
checkListing(t, root, []string{"file1,5,false"})
|
|
}
|
|
|
|
func TestWriteFileHandleRelease(t *testing.T) {
|
|
_, _, fh, cleanup := writeHandleCreate(t)
|
|
defer cleanup()
|
|
|
|
// Check Release closes file
|
|
err := fh.Release()
|
|
if errors.Is(err, fs.ErrorCantUploadEmptyFiles) {
|
|
t.Logf("skipping test: %v", err)
|
|
return
|
|
}
|
|
assert.NoError(t, err)
|
|
assert.True(t, fh.closed)
|
|
|
|
// Check Release does nothing if called again
|
|
err = fh.Release()
|
|
assert.NoError(t, err)
|
|
assert.True(t, fh.closed)
|
|
}
|
|
|
|
var (
|
|
canSetModTimeOnce sync.Once
|
|
canSetModTimeValue = true
|
|
)
|
|
|
|
// returns whether the remote can set modtime
|
|
func canSetModTime(t *testing.T, r *fstest.Run) bool {
|
|
canSetModTimeOnce.Do(func() {
|
|
mtime1 := time.Date(2008, time.November, 18, 17, 32, 31, 0, time.UTC)
|
|
_ = r.WriteObject(context.Background(), "time_test", "stuff", mtime1)
|
|
obj, err := r.Fremote.NewObject(context.Background(), "time_test")
|
|
require.NoError(t, err)
|
|
mtime2 := time.Date(2009, time.November, 18, 17, 32, 31, 0, time.UTC)
|
|
err = obj.SetModTime(context.Background(), mtime2)
|
|
switch err {
|
|
case nil:
|
|
canSetModTimeValue = true
|
|
case fs.ErrorCantSetModTime, fs.ErrorCantSetModTimeWithoutDelete:
|
|
canSetModTimeValue = false
|
|
default:
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, obj.Remove(context.Background()))
|
|
fs.Debugf(nil, "Can set mod time: %v", canSetModTimeValue)
|
|
})
|
|
return canSetModTimeValue
|
|
}
|
|
|
|
// tests mod time on open files
|
|
func TestWriteFileModTimeWithOpenWriters(t *testing.T) {
|
|
r, vfs, fh, cleanup := writeHandleCreate(t)
|
|
defer cleanup()
|
|
|
|
if !canSetModTime(t, r) {
|
|
t.Skip("can't set mod time")
|
|
}
|
|
|
|
mtime := time.Date(2012, time.November, 18, 17, 32, 31, 0, time.UTC)
|
|
|
|
_, err := fh.Write([]byte{104, 105})
|
|
require.NoError(t, err)
|
|
|
|
err = fh.Node().SetModTime(mtime)
|
|
require.NoError(t, err)
|
|
|
|
err = fh.Close()
|
|
require.NoError(t, err)
|
|
|
|
info, err := vfs.Stat("file1")
|
|
require.NoError(t, err)
|
|
|
|
if r.Fremote.Precision() != fs.ModTimeNotSupported {
|
|
// avoid errors because of timezone differences
|
|
assert.Equal(t, info.ModTime().Unix(), mtime.Unix())
|
|
}
|
|
}
|
|
|
|
func testFileReadAt(t *testing.T, n int) {
|
|
_, vfs, fh, cleanup := writeHandleCreate(t)
|
|
defer cleanup()
|
|
|
|
contents := []byte(random.String(n))
|
|
if n != 0 {
|
|
written, err := fh.Write(contents)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, n, written)
|
|
}
|
|
|
|
// Close the file without writing to it if n==0
|
|
err := fh.Close()
|
|
if errors.Is(err, fs.ErrorCantUploadEmptyFiles) {
|
|
t.Logf("skipping test: %v", err)
|
|
return
|
|
}
|
|
assert.NoError(t, err)
|
|
|
|
// read the file back in using ReadAt into a buffer
|
|
// this simulates what mount does
|
|
rd, err := vfs.OpenFile("file1", os.O_RDONLY, 0)
|
|
require.NoError(t, err)
|
|
|
|
buf := make([]byte, 1024)
|
|
read, err := rd.ReadAt(buf, 0)
|
|
if err != io.EOF {
|
|
assert.NoError(t, err)
|
|
}
|
|
assert.Equal(t, read, n)
|
|
assert.Equal(t, contents, buf[:read])
|
|
|
|
err = rd.Close()
|
|
assert.NoError(t, err)
|
|
}
|
|
|
|
func TestFileReadAtZeroLength(t *testing.T) {
|
|
testFileReadAt(t, 0)
|
|
}
|
|
|
|
func TestFileReadAtNonZeroLength(t *testing.T) {
|
|
testFileReadAt(t, 100)
|
|
}
|