2015-03-02 06:11:09 +03:00
|
|
|
// Copyright 2015 Google Inc. All Rights Reserved.
|
|
|
|
// Author: jacobsa@google.com (Aaron Jacobs)
|
|
|
|
|
|
|
|
package memfs_test
|
|
|
|
|
|
|
|
import (
|
|
|
|
"io/ioutil"
|
|
|
|
"log"
|
2015-03-02 07:07:34 +03:00
|
|
|
"os"
|
|
|
|
"path"
|
2015-03-02 06:11:09 +03:00
|
|
|
"strings"
|
2015-03-03 02:37:09 +03:00
|
|
|
"syscall"
|
2015-03-02 06:11:09 +03:00
|
|
|
"testing"
|
|
|
|
"time"
|
|
|
|
|
|
|
|
"github.com/jacobsa/fuse"
|
|
|
|
"github.com/jacobsa/fuse/samples/memfs"
|
|
|
|
"github.com/jacobsa/gcsfuse/timeutil"
|
2015-03-02 06:12:02 +03:00
|
|
|
. "github.com/jacobsa/oglematchers"
|
2015-03-02 06:11:09 +03:00
|
|
|
. "github.com/jacobsa/ogletest"
|
|
|
|
"golang.org/x/net/context"
|
|
|
|
)
|
|
|
|
|
|
|
|
func TestMemFS(t *testing.T) { RunTests(t) }
|
|
|
|
|
2015-03-03 02:37:09 +03:00
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
// Helpers
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
func currentUid() uint32
|
|
|
|
|
|
|
|
func currentGid() uint32
|
|
|
|
|
|
|
|
func timespecToTime(ts syscall.Timespec) time.Time
|
|
|
|
|
2015-03-02 06:11:09 +03:00
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
// Boilerplate
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
type MemFSTest struct {
|
|
|
|
clock timeutil.SimulatedClock
|
|
|
|
mfs *fuse.MountedFileSystem
|
|
|
|
}
|
|
|
|
|
|
|
|
var _ SetUpInterface = &MemFSTest{}
|
|
|
|
var _ TearDownInterface = &MemFSTest{}
|
|
|
|
|
|
|
|
func init() { RegisterTestSuite(&MemFSTest{}) }
|
|
|
|
|
|
|
|
func (t *MemFSTest) SetUp(ti *TestInfo) {
|
|
|
|
var err error
|
|
|
|
|
|
|
|
// Set up a fixed, non-zero time.
|
|
|
|
t.clock.SetTime(time.Now())
|
|
|
|
|
|
|
|
// Set up a temporary directory for mounting.
|
|
|
|
mountPoint, err := ioutil.TempDir("", "memfs_test")
|
|
|
|
if err != nil {
|
|
|
|
panic("ioutil.TempDir: " + err.Error())
|
|
|
|
}
|
|
|
|
|
|
|
|
// Mount a file system.
|
|
|
|
fs := memfs.NewMemFS(&t.clock)
|
|
|
|
if t.mfs, err = fuse.Mount(mountPoint, fs); err != nil {
|
|
|
|
panic("Mount: " + err.Error())
|
|
|
|
}
|
|
|
|
|
|
|
|
if err = t.mfs.WaitForReady(context.Background()); err != nil {
|
|
|
|
panic("MountedFileSystem.WaitForReady: " + err.Error())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) TearDown() {
|
|
|
|
// Unmount the file system. Try again on "resource busy" errors.
|
|
|
|
delay := 10 * time.Millisecond
|
|
|
|
for {
|
|
|
|
err := t.mfs.Unmount()
|
|
|
|
if err == nil {
|
|
|
|
break
|
|
|
|
}
|
|
|
|
|
|
|
|
if strings.Contains(err.Error(), "resource busy") {
|
|
|
|
log.Println("Resource busy error while unmounting; trying again")
|
|
|
|
time.Sleep(delay)
|
|
|
|
delay = time.Duration(1.3 * float64(delay))
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
|
|
|
|
panic("MountedFileSystem.Unmount: " + err.Error())
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := t.mfs.Join(context.Background()); err != nil {
|
|
|
|
panic("MountedFileSystem.Join: " + err.Error())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
// Test functions
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
func (t *MemFSTest) ContentsOfEmptyFileSystem() {
|
2015-03-02 06:12:02 +03:00
|
|
|
entries, err := ioutil.ReadDir(t.mfs.Dir())
|
|
|
|
|
|
|
|
AssertEq(nil, err)
|
|
|
|
ExpectThat(entries, ElementsAre())
|
2015-03-02 06:11:09 +03:00
|
|
|
}
|
|
|
|
|
2015-03-02 07:01:07 +03:00
|
|
|
func (t *MemFSTest) Mkdir() {
|
2015-03-02 07:07:34 +03:00
|
|
|
var err error
|
|
|
|
var fi os.FileInfo
|
2015-03-03 02:37:09 +03:00
|
|
|
var stat *syscall.Stat_t
|
|
|
|
|
2015-03-02 07:07:34 +03:00
|
|
|
dirName := path.Join(t.mfs.Dir(), "dir")
|
|
|
|
|
|
|
|
// Create a directory within the root.
|
|
|
|
createTime := t.clock.Now()
|
|
|
|
err = os.Mkdir(dirName, 0754)
|
|
|
|
AssertEq(nil, err)
|
|
|
|
|
|
|
|
// Simulate time proceeding.
|
|
|
|
t.clock.AdvanceTime(time.Second)
|
|
|
|
|
|
|
|
// Stat the directory.
|
|
|
|
fi, err = os.Stat(dirName)
|
2015-03-03 02:37:09 +03:00
|
|
|
stat = fi.Sys().(*syscall.Stat_t)
|
2015-03-02 07:07:34 +03:00
|
|
|
|
|
|
|
AssertEq(nil, err)
|
|
|
|
ExpectEq("dir", fi.Name())
|
|
|
|
ExpectEq(0, fi.Size())
|
|
|
|
ExpectEq(os.ModeDir|0754, fi.Mode())
|
2015-03-03 01:42:36 +03:00
|
|
|
ExpectEq(0, fi.ModTime().Sub(createTime))
|
2015-03-02 07:07:34 +03:00
|
|
|
ExpectTrue(fi.IsDir())
|
|
|
|
|
2015-03-03 02:37:09 +03:00
|
|
|
ExpectEq(1, stat.Nlink)
|
|
|
|
ExpectEq(currentUid(), stat.Uid)
|
|
|
|
ExpectEq(currentGid(), stat.Gid)
|
|
|
|
ExpectEq(0, stat.Size)
|
|
|
|
ExpectEq(createTime, timespecToTime(stat.Atimespec))
|
|
|
|
ExpectEq(createTime, timespecToTime(stat.Mtimespec))
|
|
|
|
ExpectEq(createTime, timespecToTime(stat.Ctimespec))
|
|
|
|
|
2015-03-02 07:07:34 +03:00
|
|
|
// Read the directory.
|
|
|
|
entries, err := ioutil.ReadDir(dirName)
|
|
|
|
|
|
|
|
AssertEq(nil, err)
|
|
|
|
ExpectThat(entries, ElementsAre())
|
2015-03-02 07:01:07 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) Mkdir_AlreadyExists() {
|
2015-03-03 01:49:41 +03:00
|
|
|
var err error
|
|
|
|
dirName := path.Join(t.mfs.Dir(), "dir")
|
|
|
|
|
|
|
|
// Create the directory once.
|
|
|
|
err = os.Mkdir(dirName, 0754)
|
|
|
|
AssertEq(nil, err)
|
|
|
|
|
|
|
|
// Attempt to create it again.
|
|
|
|
err = os.Mkdir(dirName, 0754)
|
|
|
|
|
|
|
|
AssertNe(nil, err)
|
|
|
|
ExpectThat(err, Error(HasSubstr("exists")))
|
2015-03-02 07:01:07 +03:00
|
|
|
}
|
|
|
|
|
2015-03-02 07:07:34 +03:00
|
|
|
func (t *MemFSTest) Mkdir_IntermediateIsFile() {
|
2015-03-03 01:52:11 +03:00
|
|
|
var err error
|
|
|
|
|
|
|
|
// Create a file.
|
|
|
|
fileName := path.Join(t.mfs.Dir(), "foo")
|
|
|
|
err = ioutil.WriteFile(fileName, []byte{}, 0700)
|
|
|
|
AssertEq(nil, err)
|
|
|
|
|
|
|
|
// Attempt to create a directory within the file.
|
|
|
|
dirName := path.Join(fileName, "dir")
|
|
|
|
err = os.Mkdir(dirName, 0754)
|
|
|
|
|
|
|
|
AssertNe(nil, err)
|
|
|
|
ExpectThat(err, Error(HasSubstr("TODO")))
|
2015-03-02 07:07:34 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) Mkdir_IntermediateIsNonExistent() {
|
2015-03-03 01:50:31 +03:00
|
|
|
var err error
|
|
|
|
|
|
|
|
// Attempt to create a sub-directory of a non-existent sub-directory.
|
|
|
|
dirName := path.Join(t.mfs.Dir(), "foo/dir")
|
|
|
|
err = os.Mkdir(dirName, 0754)
|
|
|
|
|
|
|
|
AssertNe(nil, err)
|
|
|
|
ExpectThat(err, Error(HasSubstr("no such file or directory")))
|
2015-03-02 07:07:34 +03:00
|
|
|
}
|
|
|
|
|
2015-03-02 07:01:07 +03:00
|
|
|
func (t *MemFSTest) CreateNewFile_InRoot() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) CreateNewFile_InSubDir() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) ModifyExistingFile_InRoot() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) ModifyExistingFile_InSubDir() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) UnlinkFile_Exists() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) UnlinkFile_NotAFile() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) UnlinkFile_NonExistent() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) Rmdir_NonEmpty() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) Rmdir_Empty() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) Rmdir_NotADirectory() {
|
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *MemFSTest) Rmdir_NonExistent() {
|
2015-03-02 06:11:09 +03:00
|
|
|
AssertTrue(false, "TODO")
|
|
|
|
}
|