84191ac6dc
When a file has its modtime set while it is open we delay setting the modtime until the file is closed. The file is then uploaded in Flush. In Release we check the cached file has been uploaded by comparing modtimes and or hashes and upload it again if it has changed. Before this change we forgot to change the time on the cached file when we updated the time file on the object, so this mean that Release reset the time to the wrong time and uploaded the file again on remotes which don't support hashes (eg crypt). The fix was to set the modtime of the cached file at the same time we set the modtime of the remote object. This means that the files check as identical in Release so it doesn't try to upload the file. This means that we avoid a double upload and the modtime is correct. See: https://forum.rclone.org/t/modification-time-with-vfs-cache/13906/8
742 lines
18 KiB
Go
742 lines
18 KiB
Go
package vfs
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import (
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"context"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"testing"
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"time"
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"github.com/pkg/errors"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/operations"
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"github.com/rclone/rclone/fstest"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func cleanup(t *testing.T, r *fstest.Run, vfs *VFS) {
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assert.NoError(t, vfs.CleanUp())
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vfs.Shutdown()
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r.Finalise()
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}
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// Create a file and open it with the flags passed in
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func rwHandleCreateFlags(t *testing.T, r *fstest.Run, create bool, filename string, flags int) (*VFS, *RWFileHandle) {
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opt := DefaultOpt
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opt.CacheMode = CacheModeFull
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vfs := New(r.Fremote, &opt)
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if create {
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file1 := r.WriteObject(context.Background(), filename, "0123456789abcdef", t1)
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fstest.CheckItems(t, r.Fremote, file1)
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}
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h, err := vfs.OpenFile(filename, flags, 0777)
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require.NoError(t, err)
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fh, ok := h.(*RWFileHandle)
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require.True(t, ok)
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return vfs, fh
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}
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// Open a file for read
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func rwHandleCreateReadOnly(t *testing.T, r *fstest.Run) (*VFS, *RWFileHandle) {
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return rwHandleCreateFlags(t, r, true, "dir/file1", os.O_RDONLY)
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}
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// Open a file for write
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func rwHandleCreateWriteOnly(t *testing.T, r *fstest.Run) (*VFS, *RWFileHandle) {
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return rwHandleCreateFlags(t, r, false, "file1", os.O_WRONLY|os.O_CREATE)
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}
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// read data from the string
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func rwReadString(t *testing.T, fh *RWFileHandle, n int) string {
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buf := make([]byte, n)
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n, err := fh.Read(buf)
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if err != io.EOF {
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assert.NoError(t, err)
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}
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return string(buf[:n])
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}
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func TestRWFileHandleMethodsRead(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateReadOnly(t, r)
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defer cleanup(t, r, vfs)
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// String
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assert.Equal(t, "dir/file1 (rw)", fh.String())
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assert.Equal(t, "<nil *RWFileHandle>", (*RWFileHandle)(nil).String())
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assert.Equal(t, "<nil *RWFileHandle.file>", new(RWFileHandle).String())
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// Node
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node := fh.Node()
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assert.Equal(t, "file1", node.Name())
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// Size
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assert.Equal(t, int64(16), fh.Size())
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// No opens yet
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assert.Equal(t, 0, fh.file.rwOpens())
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// Read 1
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assert.Equal(t, "0", rwReadString(t, fh, 1))
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// Open after the read
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assert.Equal(t, 1, fh.file.rwOpens())
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// Read remainder
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assert.Equal(t, "123456789abcdef", rwReadString(t, fh, 256))
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// Read EOF
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buf := make([]byte, 16)
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_, err := fh.Read(buf)
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assert.Equal(t, io.EOF, err)
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// Sync
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err = fh.Sync()
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assert.NoError(t, err)
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// Stat
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var fi os.FileInfo
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fi, err = fh.Stat()
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assert.NoError(t, err)
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assert.Equal(t, int64(16), fi.Size())
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assert.Equal(t, "file1", fi.Name())
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// Close
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assert.False(t, fh.closed)
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assert.Equal(t, nil, fh.Close())
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assert.True(t, fh.closed)
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// No opens again
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assert.Equal(t, 0, fh.file.rwOpens())
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// Close again
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assert.Equal(t, ECLOSED, fh.Close())
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}
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func TestRWFileHandleSeek(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateReadOnly(t, r)
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defer cleanup(t, r, vfs)
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assert.Equal(t, fh.opened, false)
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// Check null seeks don't open the file
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n, err := fh.Seek(0, io.SeekStart)
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assert.NoError(t, err)
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assert.Equal(t, int64(0), n)
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assert.Equal(t, fh.opened, false)
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n, err = fh.Seek(0, io.SeekCurrent)
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assert.NoError(t, err)
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assert.Equal(t, int64(0), n)
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assert.Equal(t, fh.opened, false)
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assert.Equal(t, "0", rwReadString(t, fh, 1))
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// 0 means relative to the origin of the file,
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n, err = fh.Seek(5, io.SeekStart)
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assert.NoError(t, err)
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assert.Equal(t, int64(5), n)
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assert.Equal(t, "5", rwReadString(t, fh, 1))
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// 1 means relative to the current offset
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n, err = fh.Seek(-3, io.SeekCurrent)
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assert.NoError(t, err)
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assert.Equal(t, int64(3), n)
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assert.Equal(t, "3", rwReadString(t, fh, 1))
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// 2 means relative to the end.
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n, err = fh.Seek(-3, io.SeekEnd)
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assert.NoError(t, err)
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assert.Equal(t, int64(13), n)
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assert.Equal(t, "d", rwReadString(t, fh, 1))
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// Seek off the end
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_, err = fh.Seek(100, io.SeekStart)
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assert.NoError(t, err)
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// Get the error on read
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buf := make([]byte, 16)
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l, err := fh.Read(buf)
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assert.Equal(t, io.EOF, err)
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assert.Equal(t, 0, l)
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// Close
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assert.Equal(t, nil, fh.Close())
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}
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func TestRWFileHandleReadAt(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateReadOnly(t, r)
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defer cleanup(t, r, vfs)
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// read from start
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buf := make([]byte, 1)
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n, err := fh.ReadAt(buf, 0)
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require.NoError(t, err)
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assert.Equal(t, 1, n)
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assert.Equal(t, "0", string(buf[:n]))
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// seek forwards
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n, err = fh.ReadAt(buf, 5)
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require.NoError(t, err)
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assert.Equal(t, 1, n)
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assert.Equal(t, "5", string(buf[:n]))
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// seek backwards
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n, err = fh.ReadAt(buf, 1)
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require.NoError(t, err)
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assert.Equal(t, 1, n)
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assert.Equal(t, "1", string(buf[:n]))
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// read exactly to the end
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buf = make([]byte, 6)
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n, err = fh.ReadAt(buf, 10)
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require.NoError(t, err)
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assert.Equal(t, 6, n)
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assert.Equal(t, "abcdef", string(buf[:n]))
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// read off the end
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buf = make([]byte, 256)
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n, err = fh.ReadAt(buf, 10)
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assert.Equal(t, io.EOF, err)
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assert.Equal(t, 6, n)
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assert.Equal(t, "abcdef", string(buf[:n]))
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// read starting off the end
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n, err = fh.ReadAt(buf, 100)
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assert.Equal(t, io.EOF, err)
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assert.Equal(t, 0, n)
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// Properly close the file
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assert.NoError(t, fh.Close())
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// check reading on closed file
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_, err = fh.ReadAt(buf, 100)
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assert.Equal(t, ECLOSED, err)
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}
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func TestRWFileHandleFlushRead(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateReadOnly(t, r)
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defer cleanup(t, r, vfs)
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// Check Flush does nothing if read not called
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err := fh.Flush()
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assert.NoError(t, err)
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assert.False(t, fh.closed)
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// Read data
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buf := make([]byte, 256)
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n, err := fh.Read(buf)
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assert.True(t, err == io.EOF || err == nil)
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assert.Equal(t, 16, n)
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// Check Flush does nothing if read called
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err = fh.Flush()
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assert.NoError(t, err)
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assert.False(t, fh.closed)
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// Check flush does nothing if called again
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err = fh.Flush()
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assert.NoError(t, err)
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assert.False(t, fh.closed)
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// Properly close the file
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assert.NoError(t, fh.Close())
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}
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func TestRWFileHandleReleaseRead(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateReadOnly(t, r)
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defer cleanup(t, r, vfs)
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// Read data
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buf := make([]byte, 256)
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n, err := fh.Read(buf)
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assert.True(t, err == io.EOF || err == nil)
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assert.Equal(t, 16, n)
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// Check Release closes file
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err = fh.Release()
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assert.NoError(t, err)
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assert.True(t, fh.closed)
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// Check Release does nothing if called again
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err = fh.Release()
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assert.NoError(t, err)
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assert.True(t, fh.closed)
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}
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/// ------------------------------------------------------------
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func TestRWFileHandleMethodsWrite(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateWriteOnly(t, r)
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defer cleanup(t, r, vfs)
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// 1 opens since we opened with O_CREATE and the file didn't
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// exist in the cache
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assert.Equal(t, 1, fh.file.rwOpens())
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// String
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assert.Equal(t, "file1 (rw)", fh.String())
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assert.Equal(t, "<nil *RWFileHandle>", (*RWFileHandle)(nil).String())
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assert.Equal(t, "<nil *RWFileHandle.file>", new(RWFileHandle).String())
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// Node
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node := fh.Node()
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assert.Equal(t, "file1", node.Name())
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offset := func() int64 {
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n, err := fh.Seek(0, io.SeekCurrent)
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require.NoError(t, err)
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return n
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}
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// Offset #1
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assert.Equal(t, int64(0), offset())
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assert.Equal(t, int64(0), node.Size())
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// Size #1
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assert.Equal(t, int64(0), fh.Size())
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// Write
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n, err := fh.Write([]byte("hello"))
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assert.NoError(t, err)
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assert.Equal(t, 5, n)
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// Open after the write
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assert.Equal(t, 1, fh.file.rwOpens())
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// Offset #2
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assert.Equal(t, int64(5), offset())
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assert.Equal(t, int64(5), node.Size())
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// Size #2
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assert.Equal(t, int64(5), fh.Size())
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// WriteString
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n, err = fh.WriteString(" world!")
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assert.NoError(t, err)
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assert.Equal(t, 7, n)
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// Sync
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err = fh.Sync()
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assert.NoError(t, err)
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// Stat
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var fi os.FileInfo
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fi, err = fh.Stat()
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assert.NoError(t, err)
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assert.Equal(t, int64(12), fi.Size())
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assert.Equal(t, "file1", fi.Name())
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// Truncate
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err = fh.Truncate(11)
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assert.NoError(t, err)
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// Close
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assert.NoError(t, fh.Close())
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// No opens again
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assert.Equal(t, 0, fh.file.rwOpens())
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// Check double close
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err = fh.Close()
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assert.Equal(t, ECLOSED, err)
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// check vfs
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root, err := vfs.Root()
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require.NoError(t, err)
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checkListing(t, root, []string{"file1,11,false"})
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// check the underlying r.Fremote but not the modtime
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file1 := fstest.NewItem("file1", "hello world", t1)
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fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{}, fs.ModTimeNotSupported)
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}
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func TestRWFileHandleWriteAt(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateWriteOnly(t, r)
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defer cleanup(t, r, vfs)
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offset := func() int64 {
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n, err := fh.Seek(0, io.SeekCurrent)
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require.NoError(t, err)
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return n
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}
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// Preconditions
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assert.Equal(t, int64(0), offset())
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assert.True(t, fh.opened)
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assert.False(t, fh.writeCalled)
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assert.True(t, fh.changed)
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// Write the data
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n, err := fh.WriteAt([]byte("hello**"), 0)
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assert.NoError(t, err)
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assert.Equal(t, 7, n)
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// After write
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assert.Equal(t, int64(0), offset())
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assert.True(t, fh.writeCalled)
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// Write more data
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n, err = fh.WriteAt([]byte(" world"), 5)
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assert.NoError(t, err)
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assert.Equal(t, 6, n)
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// Close
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assert.NoError(t, fh.Close())
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// Check can't write on closed handle
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n, err = fh.WriteAt([]byte("hello"), 0)
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assert.Equal(t, ECLOSED, err)
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assert.Equal(t, 0, n)
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// check vfs
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root, err := vfs.Root()
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require.NoError(t, err)
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checkListing(t, root, []string{"file1,11,false"})
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// check the underlying r.Fremote but not the modtime
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file1 := fstest.NewItem("file1", "hello world", t1)
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fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{}, fs.ModTimeNotSupported)
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}
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func TestRWFileHandleWriteNoWrite(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateWriteOnly(t, r)
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defer cleanup(t, r, vfs)
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// Close the file without writing to it
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err := fh.Close()
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if errors.Cause(err) == fs.ErrorCantUploadEmptyFiles {
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t.Logf("skipping test: %v", err)
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return
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}
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assert.NoError(t, err)
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|
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// Create a different file (not in the cache)
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h, err := vfs.OpenFile("file2", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0777)
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require.NoError(t, err)
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// Close it with Flush and Release
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err = h.Flush()
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assert.NoError(t, err)
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err = h.Release()
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assert.NoError(t, err)
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|
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// check vfs
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root, err := vfs.Root()
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require.NoError(t, err)
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checkListing(t, root, []string{"file1,0,false", "file2,0,false"})
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|
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// check the underlying r.Fremote but not the modtime
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file1 := fstest.NewItem("file1", "", t1)
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file2 := fstest.NewItem("file2", "", t1)
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fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1, file2}, []string{}, fs.ModTimeNotSupported)
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}
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|
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func TestRWFileHandleFlushWrite(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateWriteOnly(t, r)
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defer cleanup(t, r, vfs)
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// Check that the file has been create and is open
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assert.True(t, fh.opened)
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// Write some data
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n, err := fh.Write([]byte("hello"))
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assert.NoError(t, err)
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assert.Equal(t, 5, n)
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|
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// Check Flush does not close file if write called
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err = fh.Flush()
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assert.NoError(t, err)
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assert.False(t, fh.closed)
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// Check flush does nothing if called again
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err = fh.Flush()
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assert.NoError(t, err)
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assert.False(t, fh.closed)
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// Check that Close closes the file
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err = fh.Close()
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assert.NoError(t, err)
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assert.True(t, fh.closed)
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}
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|
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func TestRWFileHandleReleaseWrite(t *testing.T) {
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r := fstest.NewRun(t)
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vfs, fh := rwHandleCreateWriteOnly(t, r)
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defer cleanup(t, r, vfs)
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// Write some data
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n, err := fh.Write([]byte("hello"))
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assert.NoError(t, err)
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assert.Equal(t, 5, n)
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|
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// Check Release closes file
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err = fh.Release()
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assert.NoError(t, err)
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assert.True(t, fh.closed)
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|
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// Check Release does nothing if called again
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err = fh.Release()
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assert.NoError(t, err)
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assert.True(t, fh.closed)
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}
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|
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// check the size of the file through the open file (if not nil) and via stat
|
|
func assertSize(t *testing.T, vfs *VFS, fh *RWFileHandle, filepath string, size int64) {
|
|
if fh != nil {
|
|
assert.Equal(t, size, fh.Size())
|
|
}
|
|
fi, err := vfs.Stat(filepath)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, size, fi.Size())
|
|
}
|
|
|
|
func TestRWFileHandleSizeTruncateExisting(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateFlags(t, r, true, "dir/file1", os.O_WRONLY|os.O_TRUNC)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// check initial size after opening
|
|
assertSize(t, vfs, fh, "dir/file1", 0)
|
|
|
|
// write some bytes
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// check size after writing
|
|
assertSize(t, vfs, fh, "dir/file1", 5)
|
|
|
|
// close
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// check size after close
|
|
assertSize(t, vfs, nil, "dir/file1", 5)
|
|
}
|
|
|
|
func TestRWFileHandleSizeCreateExisting(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateFlags(t, r, true, "dir/file1", os.O_WRONLY|os.O_CREATE)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// check initial size after opening
|
|
assertSize(t, vfs, fh, "dir/file1", 16)
|
|
|
|
// write some bytes
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// check size after writing
|
|
assertSize(t, vfs, fh, "dir/file1", 16)
|
|
|
|
// write some more bytes
|
|
n, err = fh.Write([]byte("helloHELLOhello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 15, n)
|
|
|
|
// check size after writing
|
|
assertSize(t, vfs, fh, "dir/file1", 20)
|
|
|
|
// close
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// check size after close
|
|
assertSize(t, vfs, nil, "dir/file1", 20)
|
|
}
|
|
|
|
func TestRWFileHandleSizeCreateNew(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateFlags(t, r, false, "file1", os.O_WRONLY|os.O_CREATE)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// check initial size after opening
|
|
assertSize(t, vfs, fh, "file1", 0)
|
|
|
|
// write some bytes
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// check size after writing
|
|
assertSize(t, vfs, fh, "file1", 5)
|
|
|
|
// check size after writing
|
|
assertSize(t, vfs, fh, "file1", 5)
|
|
|
|
// close
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// check size after close
|
|
assertSize(t, vfs, nil, "file1", 5)
|
|
}
|
|
|
|
func testRWFileHandleOpenTest(t *testing.T, vfs *VFS, test *openTest) {
|
|
fileName := "open-test-file"
|
|
|
|
// first try with file not existing
|
|
_, err := vfs.Stat(fileName)
|
|
require.True(t, os.IsNotExist(err), test.what)
|
|
|
|
f, openNonExistentErr := vfs.OpenFile(fileName, test.flags, 0666)
|
|
|
|
var readNonExistentErr error
|
|
var writeNonExistentErr error
|
|
if openNonExistentErr == nil {
|
|
// read some bytes
|
|
buf := []byte{0, 0}
|
|
_, readNonExistentErr = f.Read(buf)
|
|
|
|
// write some bytes
|
|
_, writeNonExistentErr = f.Write([]byte("hello"))
|
|
|
|
// close
|
|
err = f.Close()
|
|
require.NoError(t, err, test.what)
|
|
}
|
|
|
|
// write the file
|
|
f, err = vfs.OpenFile(fileName, os.O_WRONLY|os.O_CREATE, 0777)
|
|
require.NoError(t, err, test.what)
|
|
_, err = f.Write([]byte("hello"))
|
|
require.NoError(t, err, test.what)
|
|
err = f.Close()
|
|
require.NoError(t, err, test.what)
|
|
|
|
// then open file and try with file existing
|
|
|
|
f, openExistingErr := vfs.OpenFile(fileName, test.flags, 0666)
|
|
var readExistingErr error
|
|
var writeExistingErr error
|
|
if openExistingErr == nil {
|
|
// read some bytes
|
|
buf := []byte{0, 0}
|
|
_, readExistingErr = f.Read(buf)
|
|
|
|
// write some bytes
|
|
_, writeExistingErr = f.Write([]byte("HEL"))
|
|
|
|
// close
|
|
err = f.Close()
|
|
require.NoError(t, err, test.what)
|
|
}
|
|
|
|
// read the file
|
|
f, err = vfs.OpenFile(fileName, os.O_RDONLY, 0)
|
|
require.NoError(t, err, test.what)
|
|
buf, err := ioutil.ReadAll(f)
|
|
require.NoError(t, err, test.what)
|
|
err = f.Close()
|
|
require.NoError(t, err, test.what)
|
|
contents := string(buf)
|
|
|
|
// remove file
|
|
node, err := vfs.Stat(fileName)
|
|
require.NoError(t, err, test.what)
|
|
err = node.Remove()
|
|
require.NoError(t, err, test.what)
|
|
|
|
// check
|
|
assert.Equal(t, test.openNonExistentErr, openNonExistentErr, "openNonExistentErr: %s: want=%v, got=%v", test.what, test.openNonExistentErr, openNonExistentErr)
|
|
assert.Equal(t, test.readNonExistentErr, readNonExistentErr, "readNonExistentErr: %s: want=%v, got=%v", test.what, test.readNonExistentErr, readNonExistentErr)
|
|
assert.Equal(t, test.writeNonExistentErr, writeNonExistentErr, "writeNonExistentErr: %s: want=%v, got=%v", test.what, test.writeNonExistentErr, writeNonExistentErr)
|
|
assert.Equal(t, test.openExistingErr, openExistingErr, "openExistingErr: %s: want=%v, got=%v", test.what, test.openExistingErr, openExistingErr)
|
|
assert.Equal(t, test.readExistingErr, readExistingErr, "readExistingErr: %s: want=%v, got=%v", test.what, test.readExistingErr, readExistingErr)
|
|
assert.Equal(t, test.writeExistingErr, writeExistingErr, "writeExistingErr: %s: want=%v, got=%v", test.what, test.writeExistingErr, writeExistingErr)
|
|
assert.Equal(t, test.contents, contents, test.what)
|
|
}
|
|
|
|
func TestRWFileHandleOpenTests(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
opt := DefaultOpt
|
|
opt.CacheMode = CacheModeFull
|
|
vfs := New(r.Fremote, &opt)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
for _, test := range openTests {
|
|
testRWFileHandleOpenTest(t, vfs, &test)
|
|
}
|
|
}
|
|
|
|
// tests mod time on open files
|
|
func TestRWFileModTimeWithOpenWriters(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
defer r.Finalise()
|
|
if !canSetModTime(t, r) {
|
|
return
|
|
}
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
|
|
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)
|
|
|
|
// Using Flush/Release to mimic mount instead of Close
|
|
|
|
err = fh.Flush()
|
|
require.NoError(t, err)
|
|
|
|
err = fh.Release()
|
|
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(), fmt.Sprintf("Time mismatch: %v != %v", info.ModTime(), mtime))
|
|
}
|
|
|
|
file1 := fstest.NewItem("file1", "hi", mtime)
|
|
fstest.CheckItems(t, r.Fremote, file1)
|
|
}
|
|
|
|
func TestRWCacheRename(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
defer r.Finalise()
|
|
|
|
if !operations.CanServerSideMove(r.Fremote) {
|
|
t.Skip("skip as can't rename files")
|
|
}
|
|
|
|
opt := DefaultOpt
|
|
opt.CacheMode = CacheModeFull
|
|
vfs := New(r.Fremote, &opt)
|
|
|
|
h, err := vfs.OpenFile("rename_me", os.O_WRONLY|os.O_CREATE, 0777)
|
|
require.NoError(t, err)
|
|
_, err = h.WriteString("hello")
|
|
require.NoError(t, err)
|
|
fh, ok := h.(*RWFileHandle)
|
|
require.True(t, ok)
|
|
|
|
err = fh.Sync()
|
|
require.NoError(t, err)
|
|
err = fh.Close()
|
|
require.NoError(t, err)
|
|
|
|
assert.True(t, vfs.cache.exists("rename_me"))
|
|
|
|
err = vfs.Rename("rename_me", "i_was_renamed")
|
|
require.NoError(t, err)
|
|
|
|
assert.False(t, vfs.cache.exists("rename_me"))
|
|
assert.True(t, vfs.cache.exists("i_was_renamed"))
|
|
}
|