mirror of
https://github.com/rclone/rclone
synced 2024-12-15 03:45:54 +01:00
cb5bd47e61
These were mostly caused by shadowing err and a good fraction of them will have caused errors not to be propagated properly.
596 lines
14 KiB
Go
596 lines
14 KiB
Go
package vfs
|
|
|
|
import (
|
|
"io"
|
|
"io/ioutil"
|
|
"os"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ncw/rclone/fs"
|
|
"github.com/ncw/rclone/fstest"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func cleanup(t *testing.T, r *fstest.Run, vfs *VFS) {
|
|
assert.NoError(t, vfs.CleanUp())
|
|
vfs.Shutdown()
|
|
r.Finalise()
|
|
}
|
|
|
|
// Open a file for write
|
|
func rwHandleCreateReadOnly(t *testing.T, r *fstest.Run) (*VFS, *RWFileHandle) {
|
|
opt := DefaultOpt
|
|
opt.CacheMode = CacheModeFull
|
|
vfs := New(r.Fremote, &opt)
|
|
|
|
file1 := r.WriteObject("dir/file1", "0123456789abcdef", t1)
|
|
fstest.CheckItems(t, r.Fremote, file1)
|
|
|
|
h, err := vfs.OpenFile("dir/file1", os.O_RDONLY, 0777)
|
|
require.NoError(t, err)
|
|
fh, ok := h.(*RWFileHandle)
|
|
require.True(t, ok)
|
|
|
|
return vfs, fh
|
|
}
|
|
|
|
// Open a file for write
|
|
func rwHandleCreateWriteOnly(t *testing.T, r *fstest.Run) (*VFS, *RWFileHandle) {
|
|
opt := DefaultOpt
|
|
opt.CacheMode = CacheModeFull
|
|
vfs := New(r.Fremote, &opt)
|
|
|
|
h, err := vfs.OpenFile("file1", os.O_WRONLY|os.O_CREATE, 0777)
|
|
require.NoError(t, err)
|
|
fh, ok := h.(*RWFileHandle)
|
|
require.True(t, ok)
|
|
|
|
return vfs, fh
|
|
}
|
|
|
|
// read data from the string
|
|
func rwReadString(t *testing.T, fh *RWFileHandle, n int) string {
|
|
buf := make([]byte, n)
|
|
n, err := fh.Read(buf)
|
|
if err != io.EOF {
|
|
assert.NoError(t, err)
|
|
}
|
|
return string(buf[:n])
|
|
}
|
|
|
|
func TestRWFileHandleMethodsRead(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateReadOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// String
|
|
assert.Equal(t, "dir/file1 (rw)", fh.String())
|
|
assert.Equal(t, "<nil *RWFileHandle>", (*RWFileHandle)(nil).String())
|
|
assert.Equal(t, "<nil *RWFileHandle.file>", new(RWFileHandle).String())
|
|
|
|
// Node
|
|
node := fh.Node()
|
|
assert.Equal(t, "file1", node.Name())
|
|
|
|
// Size
|
|
assert.Equal(t, int64(16), fh.Size())
|
|
|
|
// No opens yet
|
|
assert.Equal(t, 0, fh.file.rwOpens())
|
|
|
|
// Read 1
|
|
assert.Equal(t, "0", rwReadString(t, fh, 1))
|
|
|
|
// Open after the read
|
|
assert.Equal(t, 1, fh.file.rwOpens())
|
|
|
|
// Read remainder
|
|
assert.Equal(t, "123456789abcdef", rwReadString(t, fh, 256))
|
|
|
|
// Read EOF
|
|
buf := make([]byte, 16)
|
|
_, err := fh.Read(buf)
|
|
assert.Equal(t, io.EOF, err)
|
|
|
|
// Sync
|
|
err = fh.Sync()
|
|
assert.NoError(t, err)
|
|
|
|
// Stat
|
|
var fi os.FileInfo
|
|
fi, err = fh.Stat()
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(16), fi.Size())
|
|
assert.Equal(t, "file1", fi.Name())
|
|
|
|
// Close
|
|
assert.False(t, fh.closed)
|
|
assert.Equal(t, nil, fh.Close())
|
|
assert.True(t, fh.closed)
|
|
|
|
// No opens again
|
|
assert.Equal(t, 0, fh.file.rwOpens())
|
|
|
|
// Close again
|
|
assert.Equal(t, ECLOSED, fh.Close())
|
|
}
|
|
|
|
func TestRWFileHandleSeek(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateReadOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
assert.Equal(t, fh.opened, false)
|
|
|
|
// Check null seeks don't open the file
|
|
n, err := fh.Seek(0, io.SeekStart)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(0), n)
|
|
assert.Equal(t, fh.opened, false)
|
|
n, err = fh.Seek(0, io.SeekCurrent)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(0), n)
|
|
assert.Equal(t, fh.opened, false)
|
|
|
|
assert.Equal(t, "0", rwReadString(t, fh, 1))
|
|
|
|
// 0 means relative to the origin of the file,
|
|
n, err = fh.Seek(5, io.SeekStart)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(5), n)
|
|
assert.Equal(t, "5", rwReadString(t, fh, 1))
|
|
|
|
// 1 means relative to the current offset
|
|
n, err = fh.Seek(-3, io.SeekCurrent)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(3), n)
|
|
assert.Equal(t, "3", rwReadString(t, fh, 1))
|
|
|
|
// 2 means relative to the end.
|
|
n, err = fh.Seek(-3, io.SeekEnd)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(13), n)
|
|
assert.Equal(t, "d", rwReadString(t, fh, 1))
|
|
|
|
// Seek off the end
|
|
_, err = fh.Seek(100, io.SeekStart)
|
|
assert.NoError(t, err)
|
|
|
|
// Get the error on read
|
|
buf := make([]byte, 16)
|
|
l, err := fh.Read(buf)
|
|
assert.Equal(t, io.EOF, err)
|
|
assert.Equal(t, 0, l)
|
|
|
|
// Close
|
|
assert.Equal(t, nil, fh.Close())
|
|
}
|
|
|
|
func TestRWFileHandleReadAt(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateReadOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// read from start
|
|
buf := make([]byte, 1)
|
|
n, err := fh.ReadAt(buf, 0)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, 1, n)
|
|
assert.Equal(t, "0", string(buf[:n]))
|
|
|
|
// seek forwards
|
|
n, err = fh.ReadAt(buf, 5)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, 1, n)
|
|
assert.Equal(t, "5", string(buf[:n]))
|
|
|
|
// seek backwards
|
|
n, err = fh.ReadAt(buf, 1)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, 1, n)
|
|
assert.Equal(t, "1", string(buf[:n]))
|
|
|
|
// read exactly to the end
|
|
buf = make([]byte, 6)
|
|
n, err = fh.ReadAt(buf, 10)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, 6, n)
|
|
assert.Equal(t, "abcdef", string(buf[:n]))
|
|
|
|
// read off the end
|
|
buf = make([]byte, 256)
|
|
n, err = fh.ReadAt(buf, 10)
|
|
assert.Equal(t, io.EOF, err)
|
|
assert.Equal(t, 6, n)
|
|
assert.Equal(t, "abcdef", string(buf[:n]))
|
|
|
|
// read starting off the end
|
|
n, err = fh.ReadAt(buf, 100)
|
|
assert.Equal(t, io.EOF, err)
|
|
assert.Equal(t, 0, n)
|
|
|
|
// Properly close the file
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// check reading on closed file
|
|
_, err = fh.ReadAt(buf, 100)
|
|
assert.Equal(t, ECLOSED, err)
|
|
}
|
|
|
|
func TestRWFileHandleFlushRead(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateReadOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// Check Flush does nothing if read not called
|
|
err := fh.Flush()
|
|
assert.NoError(t, err)
|
|
assert.False(t, fh.closed)
|
|
|
|
// Read data
|
|
buf := make([]byte, 256)
|
|
n, err := fh.Read(buf)
|
|
assert.True(t, err == io.EOF || err == nil)
|
|
assert.Equal(t, 16, n)
|
|
|
|
// Check Flush does nothing if read called
|
|
err = fh.Flush()
|
|
assert.NoError(t, err)
|
|
assert.False(t, fh.closed)
|
|
|
|
// Check flush does nothing if called again
|
|
err = fh.Flush()
|
|
assert.NoError(t, err)
|
|
assert.False(t, fh.closed)
|
|
|
|
// Properly close the file
|
|
assert.NoError(t, fh.Close())
|
|
}
|
|
|
|
func TestRWFileHandleReleaseRead(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateReadOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// Read data
|
|
buf := make([]byte, 256)
|
|
n, err := fh.Read(buf)
|
|
assert.True(t, err == io.EOF || err == nil)
|
|
assert.Equal(t, 16, n)
|
|
|
|
// Check Release closes file
|
|
err = fh.Release()
|
|
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)
|
|
}
|
|
|
|
/// ------------------------------------------------------------
|
|
|
|
func TestRWFileHandleMethodsWrite(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// 1 opens since we opened with O_CREATE and the file didn't
|
|
// exist in the cache
|
|
assert.Equal(t, 1, fh.file.rwOpens())
|
|
|
|
// String
|
|
assert.Equal(t, "file1 (rw)", fh.String())
|
|
assert.Equal(t, "<nil *RWFileHandle>", (*RWFileHandle)(nil).String())
|
|
assert.Equal(t, "<nil *RWFileHandle.file>", new(RWFileHandle).String())
|
|
|
|
// Node
|
|
node := fh.Node()
|
|
assert.Equal(t, "file1", node.Name())
|
|
|
|
offset := func() int64 {
|
|
n, err := fh.Seek(0, io.SeekCurrent)
|
|
require.NoError(t, err)
|
|
return n
|
|
}
|
|
|
|
// Offset #1
|
|
assert.Equal(t, int64(0), offset())
|
|
assert.Equal(t, int64(0), node.Size())
|
|
|
|
// Size #1
|
|
assert.Equal(t, int64(0), fh.Size())
|
|
|
|
// Write
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// Open after the write
|
|
assert.Equal(t, 1, fh.file.rwOpens())
|
|
|
|
// Offset #2
|
|
assert.Equal(t, int64(5), offset())
|
|
assert.Equal(t, int64(5), node.Size())
|
|
|
|
// Size #2
|
|
assert.Equal(t, int64(5), fh.Size())
|
|
|
|
// WriteString
|
|
n, err = fh.WriteString(" world!")
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 7, n)
|
|
|
|
// Sync
|
|
err = fh.Sync()
|
|
assert.NoError(t, err)
|
|
|
|
// Stat
|
|
var fi os.FileInfo
|
|
fi, err = fh.Stat()
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(12), fi.Size())
|
|
assert.Equal(t, "file1", fi.Name())
|
|
|
|
// Truncate
|
|
err = fh.Truncate(11)
|
|
assert.NoError(t, err)
|
|
|
|
// Close
|
|
assert.NoError(t, fh.Close())
|
|
|
|
// No opens again
|
|
assert.Equal(t, 0, fh.file.rwOpens())
|
|
|
|
// 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{"file1,11,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 TestRWFileHandleWriteAt(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
offset := func() int64 {
|
|
n, err := fh.Seek(0, io.SeekCurrent)
|
|
require.NoError(t, err)
|
|
return n
|
|
}
|
|
|
|
// Preconditions
|
|
assert.Equal(t, int64(0), offset())
|
|
assert.True(t, fh.opened)
|
|
assert.False(t, fh.writeCalled)
|
|
assert.True(t, fh.changed)
|
|
|
|
// Write the data
|
|
n, err := fh.WriteAt([]byte("hello**"), 0)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 7, n)
|
|
|
|
// After write
|
|
assert.Equal(t, int64(0), offset())
|
|
assert.True(t, fh.writeCalled)
|
|
|
|
// 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 TestRWFileHandleWriteNoWrite(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// Close the file without writing to it
|
|
err := fh.Close()
|
|
assert.NoError(t, err)
|
|
|
|
// Create a different file (not in the cache)
|
|
h, err := vfs.OpenFile("file2", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0777)
|
|
require.NoError(t, err)
|
|
|
|
// Close it with Flush and Release
|
|
err = h.Flush()
|
|
assert.NoError(t, err)
|
|
err = h.Release()
|
|
assert.NoError(t, err)
|
|
|
|
// check vfs
|
|
root, err := vfs.Root()
|
|
require.NoError(t, err)
|
|
checkListing(t, root, []string{"file1,0,false", "file2,0,false"})
|
|
|
|
// check the underlying r.Fremote but not the modtime
|
|
file1 := fstest.NewItem("file1", "", t1)
|
|
file2 := fstest.NewItem("file2", "", t1)
|
|
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1, file2}, []string{}, fs.ModTimeNotSupported)
|
|
}
|
|
|
|
func TestRWFileHandleFlushWrite(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// Check that the file has been create and is open
|
|
assert.True(t, fh.opened)
|
|
|
|
// 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)
|
|
}
|
|
|
|
func TestRWFileHandleReleaseWrite(t *testing.T) {
|
|
r := fstest.NewRun(t)
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
defer cleanup(t, r, vfs)
|
|
|
|
// Write some data
|
|
n, err := fh.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
// Check Release closes file
|
|
err = fh.Release()
|
|
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)
|
|
}
|
|
|
|
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()
|
|
vfs, fh := rwHandleCreateWriteOnly(t, r)
|
|
|
|
mtime := time.Date(2012, 11, 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)
|
|
|
|
// avoid errors because of timezone differences
|
|
assert.Equal(t, info.ModTime().Unix(), mtime.Unix())
|
|
}
|