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lib/model: Run more tests in tmp dir (#5527)

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This commit is contained in:
Simon Frei 2019-02-12 16:04:04 +01:00 committed by Jakob Borg
parent 4299af1c63
commit 5fd2cab102
4 changed files with 187 additions and 177 deletions
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179
lib/model/folder_sendrecv_test.go
View File

@ -75,27 +75,24 @@ func setUpFile(filename string, blockNumbers []int) protocol.FileInfo {
}
}
func setUpModel(files ...protocol.FileInfo) *Model {
db := db.OpenMemory()
model := NewModel(defaultCfgWrapper, myID, "syncthing", "dev", db, nil)
model.AddFolder(defaultFolderConfig)
func setupSendReceiveFolder(files ...protocol.FileInfo) (*Model, *sendReceiveFolder, string) {
w := createTmpWrapper(defaultCfg)
model := NewModel(w, myID, "syncthing", "dev", db.OpenMemory(), nil)
fcfg, tmpDir := testFolderConfigTmp()
model.AddFolder(fcfg)
// Update index
if files != nil {
model.updateLocalsFromScanning("default", files)
return model
}
func setUpSendReceiveFolder(model *Model) *sendReceiveFolder {
f := &sendReceiveFolder{
folder: folder{
stateTracker: newStateTracker("default"),
model: model,
initialScanFinished: make(chan struct{}),
ctx: context.TODO(),
FolderConfiguration: config.FolderConfiguration{
FilesystemType: fs.FilesystemTypeBasic,
Path: "testdata",
PullerMaxPendingKiB: defaultPullerPendingKiB,
},
FolderConfiguration: fcfg,
},
queue: newJobQueue(),
@ -107,7 +104,7 @@ func setUpSendReceiveFolder(model *Model) *sendReceiveFolder {
// Folders are never actually started, so no initial scan will be done
close(f.initialScanFinished)
return f
return model, f, tmpDir
}
// Layout of the files: (indexes from the above array)
@ -125,8 +122,12 @@ func TestHandleFile(t *testing.T) {
requiredFile := existingFile
requiredFile.Blocks = blocks[1:]
m := setUpModel(existingFile)
f := setUpSendReceiveFolder(m)
m, f, tmpDir := setupSendReceiveFolder(existingFile)
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
copyChan := make(chan copyBlocksState, 1)
dbUpdateChan := make(chan dbUpdateJob, 1)
@ -167,8 +168,16 @@ func TestHandleFileWithTemp(t *testing.T) {
requiredFile := existingFile
requiredFile.Blocks = blocks[1:]
m := setUpModel(existingFile)
f := setUpSendReceiveFolder(m)
m, f, tmpDir := setupSendReceiveFolder(existingFile)
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
if _, err := prepareTmpFile(f.Filesystem()); err != nil {
t.Fatal(err)
}
copyChan := make(chan copyBlocksState, 1)
dbUpdateChan := make(chan dbUpdateJob, 1)
@ -197,8 +206,6 @@ func TestHandleFileWithTemp(t *testing.T) {
}
func TestCopierFinder(t *testing.T) {
testOs := &fatalOs{t}
// After diff between required and existing we should:
// Copy: 1, 2, 3, 4, 6, 7, 8
// Since there is no existing file, nor a temp file
@ -206,9 +213,7 @@ func TestCopierFinder(t *testing.T) {
// After dropping out blocks found locally:
// Pull: 1, 5, 6, 8
tempFile := filepath.Join("testdata", fs.TempName("file2"))
testOs.Remove(tempFile)
defer testOs.Remove(tempFile)
tempFile := fs.TempName("file2")
existingBlocks := []int{0, 2, 3, 4, 0, 0, 7, 0}
existingFile := setUpFile(fs.TempName("file"), existingBlocks)
@ -216,8 +221,16 @@ func TestCopierFinder(t *testing.T) {
requiredFile.Blocks = blocks[1:]
requiredFile.Name = "file2"
m := setUpModel(existingFile)
f := setUpSendReceiveFolder(m)
m, f, tmpDir := setupSendReceiveFolder(existingFile)
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
if _, err := prepareTmpFile(f.Filesystem()); err != nil {
t.Fatal(err)
}
copyChan := make(chan copyBlocksState)
pullChan := make(chan pullBlockState, 4)
finisherChan := make(chan *sharedPullerState, 1)
@ -259,7 +272,7 @@ func TestCopierFinder(t *testing.T) {
}
// Verify that the fetched blocks have actually been written to the temp file
blks, err := scanner.HashFile(context.TODO(), fs.NewFilesystem(fs.FilesystemTypeBasic, "."), tempFile, protocol.MinBlockSize, nil, false)
blks, err := scanner.HashFile(context.TODO(), f.Filesystem(), tempFile, protocol.MinBlockSize, nil, false)
if err != nil {
t.Log(err)
}
@ -273,9 +286,15 @@ func TestCopierFinder(t *testing.T) {
}
func TestWeakHash(t *testing.T) {
testOs := &fatalOs{t}
// Setup the model/pull environment
model, fo, tmpDir := setupSendReceiveFolder()
defer func() {
os.Remove(model.cfg.ConfigPath())
os.Remove(tmpDir)
}()
ffs := fo.Filesystem()
tempFile := filepath.Join("testdata", fs.TempName("weakhash"))
tempFile := fs.TempName("weakhash")
var shift int64 = 10
var size int64 = 1 << 20
expectBlocks := int(size / protocol.MinBlockSize)
@ -284,18 +303,12 @@ func TestWeakHash(t *testing.T) {
expectPulls++
}
cleanup := func() {
for _, path := range []string{tempFile, "testdata/weakhash"} {
testOs.Remove(path)
f, err := ffs.Create("weakhash")
if err != nil {
t.Fatal(err)
}
}
cleanup()
defer cleanup()
f := testOs.Create("testdata/weakhash")
defer f.Close()
_, err := io.CopyN(f, rand.Reader, size)
_, err = io.CopyN(f, rand.Reader, size)
if err != nil {
t.Error(err)
}
@ -337,9 +350,8 @@ func TestWeakHash(t *testing.T) {
ModifiedS: info.ModTime().Unix() + 1,
}
// Setup the model/pull environment
m := setUpModel(existingFile)
fo := setUpSendReceiveFolder(m)
model.updateLocalsFromScanning("default", []protocol.FileInfo{existingFile})
copyChan := make(chan copyBlocksState)
pullChan := make(chan pullBlockState, expectBlocks)
finisherChan := make(chan *sharedPullerState, 1)
@ -372,7 +384,9 @@ func TestWeakHash(t *testing.T) {
}
finish.fd.Close()
testOs.Remove(tempFile)
if err := ffs.Remove(tempFile); err != nil {
t.Fatal(err)
}
// Test 2 - using weak hash, expectPulls blocks pulled.
fo.WeakHashThresholdPct = -1
@ -405,7 +419,11 @@ func TestCopierCleanup(t *testing.T) {
// Create a file
file := setUpFile("test", []int{0})
m := setUpModel(file)
m, _, tmpDir := setupSendReceiveFolder(file)
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
file.Blocks = []protocol.BlockInfo{blocks[1]}
file.Version = file.Version.Update(myID.Short())
@ -435,21 +453,17 @@ func TestCopierCleanup(t *testing.T) {
}
func TestDeregisterOnFailInCopy(t *testing.T) {
testOs := &fatalOs{t}
file := setUpFile("filex", []int{0, 2, 0, 0, 5, 0, 0, 8})
defer testOs.Remove("testdata/" + fs.TempName("filex"))
db := db.OpenMemory()
m := NewModel(defaultCfgWrapper, myID, "syncthing", "dev", db, nil)
m.AddFolder(defaultFolderConfig)
m, f, tmpDir := setupSendReceiveFolder()
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
// Set up our evet subscription early
s := events.Default.Subscribe(events.ItemFinished)
f := setUpSendReceiveFolder(m)
// queue.Done should be called by the finisher routine
f.queue.Push("filex", 0, time.Time{})
f.queue.Pop()
@ -529,20 +543,17 @@ func TestDeregisterOnFailInCopy(t *testing.T) {
}
func TestDeregisterOnFailInPull(t *testing.T) {
testOs := &fatalOs{t}
file := setUpFile("filex", []int{0, 2, 0, 0, 5, 0, 0, 8})
defer testOs.Remove("testdata/" + fs.TempName("filex"))
db := db.OpenMemory()
m := NewModel(defaultCfgWrapper, myID, "syncthing", "dev", db, nil)
m.AddFolder(defaultFolderConfig)
m, f, tmpDir := setupSendReceiveFolder()
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
// Set up our evet subscription early
s := events.Default.Subscribe(events.ItemFinished)
f := setUpSendReceiveFolder(m)
// queue.Done should be called by the finisher routine
f.queue.Push("filex", 0, time.Time{})
f.queue.Pop()
@ -612,26 +623,30 @@ func TestDeregisterOnFailInPull(t *testing.T) {
}
func TestIssue3164(t *testing.T) {
m := setUpModel(protocol.FileInfo{})
f := setUpSendReceiveFolder(m)
m, f, tmpDir := setupSendReceiveFolder()
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
defaultFs.RemoveAll("issue3164")
defer defaultFs.RemoveAll("issue3164")
ffs := f.Filesystem()
if err := defaultFs.MkdirAll("issue3164/oktodelete/foobar", 0777); err != nil {
ignDir := filepath.Join("issue3164", "oktodelete")
subDir := filepath.Join(ignDir, "foobar")
if err := ffs.MkdirAll(subDir, 0777); err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile("testdata/issue3164/oktodelete/foobar/file", []byte("Hello"), 0644); err != nil {
if err := ioutil.WriteFile(filepath.Join(tmpDir, subDir, "file"), []byte("Hello"), 0644); err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile("testdata/issue3164/oktodelete/file", []byte("Hello"), 0644); err != nil {
if err := ioutil.WriteFile(filepath.Join(tmpDir, ignDir, "file"), []byte("Hello"), 0644); err != nil {
t.Fatal(err)
}
file := protocol.FileInfo{
Name: "issue3164",
}
matcher := ignore.New(defaultFs)
matcher := ignore.New(ffs)
if err := matcher.Parse(bytes.NewBufferString("(?d)oktodelete"), ""); err != nil {
t.Fatal(err)
}
@ -640,7 +655,7 @@ func TestIssue3164(t *testing.T) {
f.handleDeleteDir(file, matcher, dbUpdateChan, make(chan string))
if _, err := defaultFs.Stat("testdata/issue3164"); !fs.IsNotExist(err) {
if _, err := ffs.Stat("issue3164"); !fs.IsNotExist(err) {
t.Fatal(err)
}
}
@ -707,8 +722,11 @@ func TestDiffEmpty(t *testing.T) {
// option is true and the permissions do not match between the file on disk and
// in the db.
func TestDeleteIgnorePerms(t *testing.T) {
m := setUpModel()
f := setUpSendReceiveFolder(m)
m, f, tmpDir := setupSendReceiveFolder()
defer func() {
os.Remove(m.cfg.ConfigPath())
os.Remove(tmpDir)
}()
f.IgnorePerms = true
ffs := f.Filesystem()
@ -717,7 +735,6 @@ func TestDeleteIgnorePerms(t *testing.T) {
if err != nil {
t.Error(err)
}
defer ffs.Remove(name)
defer file.Close()
stat, err := file.Stat()
@ -761,24 +778,10 @@ func TestCopyOwner(t *testing.T) {
// Set up a folder with the CopyParentOwner bit and backed by a fake
// filesystem.
m := setUpModel()
f := &sendReceiveFolder{
folder: folder{
stateTracker: newStateTracker("default"),
model: m,
initialScanFinished: make(chan struct{}),
ctx: context.TODO(),
FolderConfiguration: config.FolderConfiguration{
FilesystemType: fs.FilesystemTypeFake,
Path: "/TestCopyOwner",
CopyOwnershipFromParent: true,
},
},
queue: newJobQueue(),
pullErrors: make(map[string]string),
pullErrorsMut: sync.NewMutex(),
}
m, f, _ := setupSendReceiveFolder()
defer os.Remove(m.cfg.ConfigPath())
f.folder.FolderConfiguration = config.NewFolderConfiguration(m.id, f.ID, f.Label, fs.FilesystemTypeFake, "/TestCopyOwner")
f.folder.FolderConfiguration.CopyOwnershipFromParent = true
f.fs = f.Filesystem()

109
lib/model/model_test.go
View File

@ -11,6 +11,7 @@ import (
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"math/rand"
"net"
@ -123,12 +124,8 @@ func TestMain(m *testing.M) {
}
}
tmpName := fs.TempName("file")
if err := osutil.Copy(defaultFs, "tmpfile", tmpName); err != nil {
panic(err)
}
future := time.Now().Add(time.Hour)
if err := os.Chtimes(filepath.Join("testdata", tmpName), future, future); err != nil {
tmpName, err := prepareTmpFile(defaultFs)
if err != nil {
panic(err)
}
@ -142,6 +139,28 @@ func TestMain(m *testing.M) {
os.Exit(exitCode)
}
func prepareTmpFile(to fs.Filesystem) (string, error) {
tmpName := fs.TempName("file")
in, err := defaultFs.Open("tmpfile")
if err != nil {
return "", err
}
defer in.Close()
out, err := to.Create(tmpName)
if err != nil {
return "", err
}
defer out.Close()
if _, err = io.Copy(out, in); err != nil {
return "", err
}
future := time.Now().Add(time.Hour)
if err := os.Chtimes(filepath.Join("testdata", tmpName), future, future); err != nil {
return "", err
}
return tmpName, nil
}
func createTmpWrapper(cfg config.Configuration) *config.Wrapper {
tmpFile, err := ioutil.TempFile(tmpLocation, "syncthing-testConfig-")
if err != nil {
@ -2879,15 +2898,13 @@ func TestIssue2571(t *testing.T) {
t.Skip("Scanning symlinks isn't supported on windows")
}
err := defaultFs.MkdirAll("replaceDir", 0755)
if err != nil {
t.Fatal(err)
}
w, tmpDir := tmpDefaultWrapper()
defer func() {
defaultFs.RemoveAll("replaceDir")
os.RemoveAll(tmpDir)
os.Remove(w.ConfigPath())
}()
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, filepath.Join(defaultFs.URI(), "replaceDir"))
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, tmpDir)
for _, dir := range []string{"toLink", "linkTarget"} {
err := testFs.MkdirAll(dir, 0775)
@ -2901,9 +2918,9 @@ func TestIssue2571(t *testing.T) {
fd.Close()
}
m := setupModel(defaultCfgWrapper)
m := setupModel(w)
if err = testFs.RemoveAll("toLink"); err != nil {
if err := testFs.RemoveAll("toLink"); err != nil {
t.Fatal(err)
}
@ -2913,12 +2930,12 @@ func TestIssue2571(t *testing.T) {
m.ScanFolder("default")
if dir, ok := m.CurrentFolderFile("default", filepath.Join("replaceDir", "toLink")); !ok {
if dir, ok := m.CurrentFolderFile("default", "toLink"); !ok {
t.Fatalf("Dir missing in db")
} else if !dir.IsSymlink() {
t.Errorf("Dir wasn't changed to symlink")
}
if file, ok := m.CurrentFolderFile("default", filepath.Join("replaceDir", "toLink", "a")); !ok {
if file, ok := m.CurrentFolderFile("default", filepath.Join("toLink", "a")); !ok {
t.Fatalf("File missing in db")
} else if !file.Deleted {
t.Errorf("File below symlink has not been marked as deleted")
@ -2931,25 +2948,30 @@ func TestIssue4573(t *testing.T) {
t.Skip("Can't make the dir inaccessible on windows")
}
err := defaultFs.MkdirAll("inaccessible", 0755)
w, tmpDir := tmpDefaultWrapper()
defer func() {
os.RemoveAll(tmpDir)
os.Remove(w.ConfigPath())
}()
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, tmpDir)
err := testFs.MkdirAll("inaccessible", 0755)
if err != nil {
t.Fatal(err)
}
defer func() {
defaultFs.Chmod("inaccessible", 0777)
defaultFs.RemoveAll("inaccessible")
}()
defer testFs.Chmod("inaccessible", 0777)
file := filepath.Join("inaccessible", "a")
fd, err := defaultFs.Create(file)
fd, err := testFs.Create(file)
if err != nil {
t.Fatal(err)
}
fd.Close()
m := setupModel(defaultCfgWrapper)
m := setupModel(w)
err = defaultFs.Chmod("inaccessible", 0000)
err = testFs.Chmod("inaccessible", 0000)
if err != nil {
t.Fatal(err)
}
@ -2966,15 +2988,13 @@ func TestIssue4573(t *testing.T) {
// TestInternalScan checks whether various fs operations are correctly represented
// in the db after scanning.
func TestInternalScan(t *testing.T) {
err := defaultFs.MkdirAll("internalScan", 0755)
if err != nil {
t.Fatal(err)
}
w, tmpDir := tmpDefaultWrapper()
defer func() {
defaultFs.RemoveAll("internalScan")
os.RemoveAll(tmpDir)
os.Remove(w.ConfigPath())
}()
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, filepath.Join(defaultFs.URI(), "internalScan"))
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, tmpDir)
testCases := map[string]func(protocol.FileInfo) bool{
"removeDir": func(f protocol.FileInfo) bool {
@ -3010,10 +3030,10 @@ func TestInternalScan(t *testing.T) {
}
}
m := setupModel(defaultCfgWrapper)
m := setupModel(w)
for _, dir := range baseDirs {
if err = testFs.RemoveAll(dir); err != nil {
if err := testFs.RemoveAll(dir); err != nil {
t.Fatal(err)
}
}
@ -3027,7 +3047,7 @@ func TestInternalScan(t *testing.T) {
m.ScanFolder("default")
for path, cond := range testCases {
if f, ok := m.CurrentFolderFile("default", filepath.Join("internalScan", path)); !ok {
if f, ok := m.CurrentFolderFile("default", path); !ok {
t.Fatalf("%v missing in db", path)
} else if cond(f) {
t.Errorf("Incorrect db entry for %v", path)
@ -3166,31 +3186,32 @@ func TestRemoveDirWithContent(t *testing.T) {
}
func TestIssue4475(t *testing.T) {
m, conn, tmpDir, w := setupModelWithConnection()
defer func() {
defaultFs.RemoveAll("delDir")
m.Stop()
os.RemoveAll(tmpDir)
os.Remove(w.ConfigPath())
}()
err := defaultFs.MkdirAll("delDir", 0755)
if err != nil {
t.Fatal(err)
}
m := setupModel(defaultCfgWrapper)
defer m.Stop()
testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, tmpDir)
// Scenario: Dir is deleted locally and before syncing/index exchange
// happens, a file is create in that dir on the remote.
// This should result in the directory being recreated and added to the
// db locally.
if err = defaultFs.RemoveAll("delDir"); err != nil {
err := testFs.MkdirAll("delDir", 0755)
if err != nil {
t.Fatal(err)
}
m.ScanFolder("default")
conn := addFakeConn(m, device1)
conn.folder = "default"
if err = testFs.RemoveAll("delDir"); err != nil {
t.Fatal(err)
}
m.ScanFolder("default")
if fcfg, ok := m.cfg.Folder("default"); !ok || !fcfg.SharedWith(device1) {
t.Fatal("not shared with device1")

52
lib/model/requests_test.go
View File

@ -18,7 +18,6 @@ import (
"time"
"github.com/syncthing/syncthing/lib/config"
"github.com/syncthing/syncthing/lib/db"
"github.com/syncthing/syncthing/lib/events"
"github.com/syncthing/syncthing/lib/fs"
"github.com/syncthing/syncthing/lib/ignore"
@ -231,8 +230,6 @@ func TestRequestCreateTmpSymlink(t *testing.T) {
}
func TestRequestVersioningSymlinkAttack(t *testing.T) {
testOs := &fatalOs{t}
if runtime.GOOS == "windows" {
t.Skip("no symlink support on Windows")
}
@ -240,33 +237,19 @@ func TestRequestVersioningSymlinkAttack(t *testing.T) {
// Sets up a folder with trashcan versioning and tries to use a
// deleted symlink to escape
tmpDir := createTmpDir()
defer testOs.RemoveAll(tmpDir)
w, tmpDir := tmpDefaultWrapper()
defer func() {
os.RemoveAll(tmpDir)
os.Remove(w.ConfigPath())
}()
cfg := defaultCfgWrapper.RawCopy()
cfg.Folders[0] = config.NewFolderConfiguration(myID, "default", "default", fs.FilesystemTypeBasic, tmpDir)
cfg.Folders[0].Devices = []config.FolderDeviceConfiguration{
{DeviceID: myID},
{DeviceID: device1},
}
cfg.Folders[0].Versioning = config.VersioningConfiguration{
Type: "trashcan",
}
w := createTmpWrapper(cfg)
defer testOs.Remove(w.ConfigPath())
fcfg := w.FolderList()[0]
fcfg.Versioning = config.VersioningConfiguration{Type: "trashcan"}
w.SetFolder(fcfg)
db := db.OpenMemory()
m := NewModel(w, myID, "syncthing", "dev", db, nil)
m.AddFolder(cfg.Folders[0])
m.ServeBackground()
m.StartFolder("default")
m, fc := setupModelWithConnectionFromWrapper(w)
defer m.Stop()
defer testOs.RemoveAll(tmpDir)
fc := addFakeConn(m, device1)
fc.folder = "default"
// Create a temporary directory that we will use as target to see if
// we can escape to it
tmpdir, err := ioutil.TempDir("", "syncthing-test")
@ -656,13 +639,11 @@ func TestRequestSymlinkWindows(t *testing.T) {
t.Skip("windows specific test")
}
testOs := &fatalOs{t}
m, fc, tmpDir, w := setupModelWithConnection()
defer func() {
m.Stop()
testOs.RemoveAll(tmpDir)
testOs.Remove(w.ConfigPath())
os.RemoveAll(tmpDir)
os.Remove(w.ConfigPath())
}()
done := make(chan struct{})
@ -719,6 +700,13 @@ func TestRequestSymlinkWindows(t *testing.T) {
}
}
func tmpDefaultWrapper() (*config.Wrapper, string) {
w := createTmpWrapper(defaultCfgWrapper.RawCopy())
fcfg, tmpDir := testFolderConfigTmp()
w.SetFolder(fcfg)
return w, tmpDir
}
func testFolderConfigTmp() (config.FolderConfiguration, string) {
tmpDir := createTmpDir()
return testFolderConfig(tmpDir), tmpDir
@ -732,9 +720,7 @@ func testFolderConfig(path string) config.FolderConfiguration {
}
func setupModelWithConnection() (*Model, *fakeConnection, string, *config.Wrapper) {
w := createTmpWrapper(defaultCfgWrapper.RawCopy())
fcfg, tmpDir := testFolderConfigTmp()
w.SetFolder(fcfg)
w, tmpDir := tmpDefaultWrapper()
m, fc := setupModelWithConnectionFromWrapper(w)
return m, fc, tmpDir, w
}

18
lib/model/sharedpullerstate_test.go
View File

@ -7,6 +7,7 @@
package model
import (
"os"
"testing"
"github.com/syncthing/syncthing/lib/fs"
@ -15,18 +16,17 @@ import (
// Test creating temporary file inside read-only directory
func TestReadOnlyDir(t *testing.T) {
testOs := &fatalOs{t}
// Create a read only directory, clean it up afterwards.
testOs.Mkdir("testdata/read_only_dir", 0555)
defer func() {
testOs.Chmod("testdata/read_only_dir", 0755)
testOs.RemoveAll("testdata/read_only_dir")
}()
tmpDir := createTmpDir()
defer os.RemoveAll(tmpDir)
if err := os.Chmod(tmpDir, 0555); err != nil {
t.Fatal(err)
}
defer os.Chmod(tmpDir, 0755)
s := sharedPullerState{
fs: fs.NewFilesystem(fs.FilesystemTypeBasic, "testdata"),
tempName: "read_only_dir/.temp_name",
fs: fs.NewFilesystem(fs.FilesystemTypeBasic, tmpDir),
tempName: ".temp_name",
mut: sync.NewRWMutex(),
}