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delta_test.go
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delta_test.go
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// Run tests to verify that we are syncing changes from the server.
package fs
import (
"bytes"
"context"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/jstaf/onedriver/fs/graph"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// a helper function for use with tests
func (i *Inode) setContent(newContent []byte) {
i.DriveItem.Size = uint64(len(newContent))
now := time.Now()
i.DriveItem.ModTime = &now
i.data = &newContent
if i.DriveItem.File == nil {
i.DriveItem.File = &graph.File{}
}
if i.DriveItem.Parent.DriveType == graph.DriveTypePersonal {
i.DriveItem.File.Hashes.SHA1Hash = graph.SHA1Hash(&newContent)
} else {
i.DriveItem.File.Hashes.QuickXorHash = graph.QuickXORHash(&newContent)
}
}
// In this test, we create a directory through the API, and wait to see if
// the cache picks it up post-creation.
func TestDeltaMkdir(t *testing.T) {
t.Parallel()
parent, err := graph.GetItemPath("/onedriver_tests/delta", auth)
require.NoError(t, err)
// create the directory directly through the API and bypass the cache
_, err = graph.Mkdir("first", parent.ID, auth)
require.NoError(t, err)
fname := filepath.Join(DeltaDir, "first")
// give the delta thread time to fetch the item
assert.Eventuallyf(t, func() bool {
st, err := os.Stat(fname)
if err == nil {
if st.Mode().IsDir() {
return true
}
t.Fatalf("%s was not a directory", fname)
}
return false
}, retrySeconds, time.Second, "%s not found", fname)
}
// We create a directory through the cache, then delete through the API and see
// if the cache picks it up.
func TestDeltaRmdir(t *testing.T) {
t.Parallel()
fname := filepath.Join(DeltaDir, "delete_me")
require.NoError(t, os.Mkdir(fname, 0755))
item, err := graph.GetItemPath("/onedriver_tests/delta/delete_me", auth)
require.NoError(t, err)
require.NoError(t, graph.Remove(item.ID, auth))
// wait for delta sync
assert.Eventually(t, func() bool {
_, err := os.Stat(fname)
return err == nil
}, retrySeconds, time.Second, "File deletion not picked up by client")
}
// Create a file locally, then rename it remotely and verify that the renamed
// file still has the correct content under the new parent.
func TestDeltaRename(t *testing.T) {
t.Parallel()
require.NoError(t, ioutil.WriteFile(
filepath.Join(DeltaDir, "delta_rename_start"),
[]byte("cheesecake"),
0644,
))
var item *graph.DriveItem
var err error
require.Eventually(t, func() bool {
item, err = graph.GetItemPath("/onedriver_tests/delta/delta_rename_start", auth)
return err == nil
}, 10*time.Second, time.Second, "Could not prepare /onedriver_test/delta/delta_rename_start")
inode := NewInodeDriveItem(item)
require.NoError(t, graph.Rename(inode.ID(), "delta_rename_end", inode.ParentID(), auth))
fpath := filepath.Join(DeltaDir, "delta_rename_end")
assert.Eventually(t, func() bool {
if _, err := os.Stat(fpath); err == nil {
content, err := ioutil.ReadFile(fpath)
require.NoError(t, err)
return bytes.Contains(content, []byte("cheesecake"))
}
return false
}, retrySeconds, time.Second, "Rename not detected by client.")
}
// Create a file locally, then move it on the server to a new directory. Check
// to see if the cache picks it up.
func TestDeltaMoveParent(t *testing.T) {
t.Parallel()
require.NoError(t, ioutil.WriteFile(
filepath.Join(DeltaDir, "delta_move_start"),
[]byte("carrotcake"),
0644,
))
time.Sleep(time.Second)
var item *graph.DriveItem
var err error
require.Eventually(t, func() bool {
item, err = graph.GetItemPath("/onedriver_tests/delta/delta_move_start", auth)
return err == nil
}, 10*time.Second, time.Second)
newParent, err := graph.GetItemPath("/onedriver_tests/", auth)
require.NoError(t, err)
require.NoError(t, graph.Rename(item.ID, "delta_rename_end", newParent.ID, auth))
fpath := filepath.Join(TestDir, "delta_rename_end")
assert.Eventually(t, func() bool {
if _, err := os.Stat(fpath); err == nil {
content, err := ioutil.ReadFile(fpath)
require.NoError(t, err)
return bytes.Contains(content, []byte("carrotcake"))
}
return false
}, retrySeconds, time.Second, "Rename not detected by client")
}
// Change the content remotely on the server, and verify it gets propagated to
// to the client.
func TestDeltaContentChangeRemote(t *testing.T) {
t.Parallel()
require.NoError(t, ioutil.WriteFile(
filepath.Join(DeltaDir, "remote_content"),
[]byte("the cake is a lie"),
0644,
))
// change and upload it via the API
time.Sleep(time.Second * 10)
item, err := graph.GetItemPath("/onedriver_tests/delta/remote_content", auth)
inode := NewInodeDriveItem(item)
require.NoError(t, err)
newContent := []byte("because it has been changed remotely!")
inode.setContent(newContent)
session, err := NewUploadSession(inode, inode.data)
require.NoError(t, err)
require.NoError(t, session.Upload(auth))
time.Sleep(time.Second * 10)
body, _ := graph.GetItemContent(inode.ID(), auth)
if !bytes.Equal(body, newContent) {
t.Fatalf("Failed to upload test file. Remote content: \"%s\"", body)
}
var content []byte
assert.Eventuallyf(t, func() bool {
content, err = ioutil.ReadFile(filepath.Join(DeltaDir, "remote_content"))
require.NoError(t, err)
return bytes.Equal(content, newContent)
}, retrySeconds, time.Second,
"Failed to sync content to local machine. Got content: \"%s\". "+
"Wanted: \"because it has been changed remotely!\". "+
"Remote content: \"%s\".",
string(content), string(body),
)
}
// Change the content both on the server and the client and verify that the
// client data is preserved.
func TestDeltaContentChangeBoth(t *testing.T) {
t.Parallel()
cache := NewFilesystem(auth, "test_delta_content_change_both.db")
inode := NewInode("both_content_changed.txt", 0644|fuse.S_IFREG, nil)
cache.InsertPath("/both_content_changed.txt", nil, inode)
original := []byte("initial content")
inode.setContent(original)
// write to, but do not close the file to simulate an in-use local file
local := []byte("local write content")
_, status := cache.Write(
context.Background().Done(),
&fuse.WriteIn{
InHeader: fuse.InHeader{NodeId: inode.NodeID()},
Offset: 0,
Size: uint32(len(local)),
},
local,
)
if status != fuse.OK {
t.Fatal("Write failed")
}
// apply a fake delta to the local item
fakeDelta := inode.DriveItem
now := time.Now().Add(time.Second * 10)
fakeDelta.ModTime = &now
fakeDelta.Size = uint64(len(original))
fakeDelta.ETag = "sldfjlsdjflkdj"
fakeDelta.File.Hashes = graph.Hashes{
QuickXorHash: graph.QuickXORHash(&original),
SHA1Hash: graph.SHA1Hash(&original),
}
// should do nothing
require.NoError(t, cache.applyDelta(&fakeDelta))
require.Equal(t, uint64(len(local)), inode.Size(), "Contents of open local file changed!")
// act as if the file is now flushed (these are the ops that would happen during
// a flush)
inode.DriveItem.File = &graph.File{}
if inode.DriveItem.Parent.DriveType == graph.DriveTypePersonal {
inode.DriveItem.File.Hashes.SHA1Hash = graph.SHA1Hash(inode.data)
} else {
inode.DriveItem.File.Hashes.QuickXorHash = graph.QuickXORHash(inode.data)
}
cache.InsertContent(inode.DriveItem.ID, *inode.data)
inode.data = nil
inode.hasChanges = false
// should now change the file
require.NoError(t, cache.applyDelta(&fakeDelta))
require.Equal(t, fakeDelta.Size, inode.Size(),
"Contents of local file was not changed after disabling local changes!")
}
// If we have local content in the local disk cache that doesn't match what the
// server has, Open() should pick this up and wipe it. Otherwise Open() could
// pick up an old version of a file from previous program startups and think
// it's current, which would erase the real, up-to-date server copy.
func TestDeltaBadContentInCache(t *testing.T) {
t.Parallel()
// write a file to the server and poll until it exists
require.NoError(t, ioutil.WriteFile(
filepath.Join(DeltaDir, "corrupted"),
[]byte("correct contents"),
0644,
))
var id string
require.Eventually(t, func() bool {
item, err := graph.GetItemPath("/onedriver_tests/delta/corrupted", auth)
if err == nil {
id = item.ID
return true
}
return false
}, retrySeconds, time.Second)
fs.InsertContent(id, []byte("wrong contents"))
contents, err := ioutil.ReadFile(filepath.Join(DeltaDir, "corrupted"))
require.NoError(t, err)
if bytes.HasPrefix(contents, []byte("wrong")) {
t.Fatalf("File contents were wrong! Got \"%s\", wanted \"correct contents\"",
string(contents))
}
}
// Check that folders are deleted only when empty after syncing the complete set of
// changes.
func TestDeltaFolderDeletion(t *testing.T) {
t.Parallel()
require.NoError(t, os.MkdirAll(filepath.Join(DeltaDir, "nested/directory"), 0755))
nested, err := graph.GetItemPath("/onedriver_tests/delta/nested", auth)
require.NoError(t, err)
require.NoError(t, graph.Remove(nested.ID, auth))
// now poll and wait for deletion
assert.Eventually(t, func() bool {
inodes, _ := ioutil.ReadDir(DeltaDir)
for _, inode := range inodes {
if inode.Name() == "nested" {
return true
}
}
return false
}, retrySeconds, time.Second, "\"nested/\" directory was not deleted.")
}
// We should only perform a delta deletion of a folder if it was nonempty
func TestDeltaFolderDeletionNonEmpty(t *testing.T) {
t.Parallel()
cache := NewFilesystem(auth, "test_delta_folder_deletion_nonempty.db")
dir := NewInode("folder", 0755|fuse.S_IFDIR, nil)
file := NewInode("file", 0644|fuse.S_IFREG, nil)
cache.InsertPath("/folder", nil, dir)
cache.InsertPath("/folder/file", nil, file)
delta := &graph.DriveItem{
ID: dir.ID(),
Parent: &graph.DriveItemParent{ID: dir.ParentID()},
Deleted: &graph.Deleted{State: "softdeleted"},
Folder: &graph.Folder{},
}
err := cache.applyDelta(delta)
require.NotNil(t, cache.GetID(delta.ID), "Folder should still be present")
require.Error(t, err, "A delta deletion of a non-empty folder was not an error")
cache.DeletePath("/folder/file")
cache.applyDelta(delta)
assert.Nil(t, cache.GetID(delta.ID),
"Still found folder after emptying it first (the correct way).")
}
// Some programs like LibreOffice and WPS Office will have a fit if the
// modification times on their lockfiles is updated after they are written. This
// test verifies that the delta thread does not modify modification times if the
// content is unchanged.
func TestDeltaNoModTimeUpdate(t *testing.T) {
t.Parallel()
fname := filepath.Join(DeltaDir, "mod_time_update.txt")
require.NoError(t, ioutil.WriteFile(fname, []byte("a pretend lockfile"), 0644))
finfo, err := os.Stat(fname)
require.NoError(t, err)
mtimeOriginal := finfo.ModTime()
time.Sleep(15 * time.Second)
finfo, err = os.Stat(fname)
require.NoError(t, err)
mtimeNew := finfo.ModTime()
if !mtimeNew.Equal(mtimeOriginal) {
t.Fatalf(
"Modification time was updated even though the file did not change.\n"+
"Old mtime: %d, New mtime: %d\n", mtimeOriginal.Unix(), mtimeNew.Unix(),
)
}
}
// deltas can come back missing from the server
// https://github.com/jstaf/onedriver/issues/111
func TestDeltaMissingHash(t *testing.T) {
t.Parallel()
cache := NewFilesystem(auth, "test_delta_missing_hash.db")
file := NewInode("file", 0644|fuse.S_IFREG, nil)
cache.InsertPath("/folder", nil, file)
time.Sleep(time.Second)
now := time.Now()
delta := &graph.DriveItem{
ID: file.ID(),
Parent: &graph.DriveItemParent{ID: file.ParentID()},
ModTime: &now,
Size: 12345,
}
cache.applyDelta(delta)
// if we survive to here without a segfault, test passed
}