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Refactored tests in samples/ to share a bunch of boilerplate.

geesefs-0-30-9
Aaron Jacobs 2015-03-20 11:14:53 +11:00
parent 8d0ce150a0 ba6909e398
commit addbb4663b
4 changed files with 296 additions and 303 deletions
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91
samples/cachingfs/caching_fs_test.go
View File

@ -15,104 +15,65 @@
package cachingfs_test
import (
"io/ioutil"
"log"
"os"
"path"
"runtime"
"strings"
"syscall"
"testing"
"time"
"github.com/jacobsa/fuse"
"github.com/jacobsa/fuse/samples/cachingfs"
"github.com/googlecloudplatform/gcsfuse/timeutil"
"github.com/jacobsa/fuse/samples"
"github.com/jacobsa/fuse/samples/cachingfs"
. "github.com/jacobsa/oglematchers"
. "github.com/jacobsa/ogletest"
"golang.org/x/net/context"
)
func TestHelloFS(t *testing.T) { RunTests(t) }
func TestCachingFS(t *testing.T) { RunTests(t) }
////////////////////////////////////////////////////////////////////////
// Boilerplate
////////////////////////////////////////////////////////////////////////
type cachingFSTest struct {
dir string
samples.SampleTest
fs cachingfs.CachingFS
mfs *fuse.MountedFileSystem
initialMtime time.Time
}
var _ TearDownInterface = &cachingFSTest{}
func (t *cachingFSTest) setUp(
ti *TestInfo,
lookupEntryTimeout time.Duration,
getattrTimeout time.Duration,
config *fuse.MountConfig) {
getattrTimeout time.Duration) {
var err error
// Set up a temporary directory for mounting.
t.dir, err = ioutil.TempDir("", "caching_fs_test")
AssertEq(nil, err)
// Create the file system.
t.fs, err = cachingfs.NewCachingFS(lookupEntryTimeout, getattrTimeout)
AssertEq(nil, err)
// Mount it.
t.mfs, err = fuse.Mount(t.dir, t.fs, config)
AssertEq(nil, err)
t.FileSystem = t.fs
err = t.mfs.WaitForReady(context.Background())
AssertEq(nil, err)
// Mount it.
t.SampleTest.SetUp(ti)
// Set up the mtime.
t.initialMtime = time.Date(2012, 8, 15, 22, 56, 0, 0, time.Local)
t.fs.SetMtime(t.initialMtime)
}
func (t *cachingFSTest) TearDown() {
// Was the file system mounted?
if t.mfs == nil {
return
}
// 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())
}
}
func (t *cachingFSTest) statAll() (foo, dir, bar os.FileInfo) {
var err error
foo, err = os.Stat(path.Join(t.dir, "foo"))
foo, err = os.Stat(path.Join(t.Dir, "foo"))
AssertEq(nil, err)
dir, err = os.Stat(path.Join(t.dir, "dir"))
dir, err = os.Stat(path.Join(t.Dir, "dir"))
AssertEq(nil, err)
bar, err = os.Stat(path.Join(t.dir, "dir/bar"))
bar, err = os.Stat(path.Join(t.Dir, "dir/bar"))
AssertEq(nil, err)
return
@ -121,13 +82,13 @@ func (t *cachingFSTest) statAll() (foo, dir, bar os.FileInfo) {
func (t *cachingFSTest) openFiles() (foo, dir, bar *os.File) {
var err error
foo, err = os.Open(path.Join(t.dir, "foo"))
foo, err = os.Open(path.Join(t.Dir, "foo"))
AssertEq(nil, err)
dir, err = os.Open(path.Join(t.dir, "dir"))
dir, err = os.Open(path.Join(t.Dir, "dir"))
AssertEq(nil, err)
bar, err = os.Open(path.Join(t.dir, "dir/bar"))
bar, err = os.Open(path.Join(t.Dir, "dir/bar"))
AssertEq(nil, err)
return
@ -171,7 +132,7 @@ func (t *BasicsTest) SetUp(ti *TestInfo) {
getattrTimeout = 0
)
t.cachingFSTest.setUp(lookupEntryTimeout, getattrTimeout, &fuse.MountConfig{})
t.cachingFSTest.setUp(ti, lookupEntryTimeout, getattrTimeout)
}
func (t *BasicsTest) StatNonexistent() {
@ -184,7 +145,7 @@ func (t *BasicsTest) StatNonexistent() {
}
for _, n := range names {
_, err := os.Stat(path.Join(t.dir, n))
_, err := os.Stat(path.Join(t.Dir, n))
AssertNe(nil, err)
ExpectTrue(os.IsNotExist(err), "n: %s, err: %v", n, err)
@ -192,7 +153,7 @@ func (t *BasicsTest) StatNonexistent() {
}
func (t *BasicsTest) StatFoo() {
fi, err := os.Stat(path.Join(t.dir, "foo"))
fi, err := os.Stat(path.Join(t.Dir, "foo"))
AssertEq(nil, err)
ExpectEq("foo", fi.Name())
@ -205,7 +166,7 @@ func (t *BasicsTest) StatFoo() {
}
func (t *BasicsTest) StatDir() {
fi, err := os.Stat(path.Join(t.dir, "dir"))
fi, err := os.Stat(path.Join(t.Dir, "dir"))
AssertEq(nil, err)
ExpectEq("dir", fi.Name())
@ -217,7 +178,7 @@ func (t *BasicsTest) StatDir() {
}
func (t *BasicsTest) StatBar() {
fi, err := os.Stat(path.Join(t.dir, "dir/bar"))
fi, err := os.Stat(path.Join(t.Dir, "dir/bar"))
AssertEq(nil, err)
ExpectEq("bar", fi.Name())
@ -247,7 +208,7 @@ func (t *NoCachingTest) SetUp(ti *TestInfo) {
getattrTimeout = 0
)
t.cachingFSTest.setUp(lookupEntryTimeout, getattrTimeout, &fuse.MountConfig{})
t.cachingFSTest.setUp(ti, lookupEntryTimeout, getattrTimeout)
}
func (t *NoCachingTest) StatStat() {
@ -324,11 +285,9 @@ func init() { RegisterTestSuite(&EntryCachingTest{}) }
func (t *EntryCachingTest) SetUp(ti *TestInfo) {
t.lookupEntryTimeout = 250 * time.Millisecond
config := &fuse.MountConfig{
EnableVnodeCaching: true,
}
t.SampleTest.MountConfig.EnableVnodeCaching = true
t.cachingFSTest.setUp(t.lookupEntryTimeout, 0, config)
t.cachingFSTest.setUp(ti, t.lookupEntryTimeout, 0)
}
func (t *EntryCachingTest) StatStat() {
@ -437,7 +396,7 @@ func init() { RegisterTestSuite(&AttributeCachingTest{}) }
func (t *AttributeCachingTest) SetUp(ti *TestInfo) {
t.getattrTimeout = 250 * time.Millisecond
t.cachingFSTest.setUp(0, t.getattrTimeout, &fuse.MountConfig{})
t.cachingFSTest.setUp(ti, 0, t.getattrTimeout)
}
func (t *AttributeCachingTest) StatStat() {

97
samples/hellofs/hello_fs_test.go
View File

@ -17,20 +17,15 @@ package hellofs_test
import (
"io"
"io/ioutil"
"log"
"os"
"path"
"strings"
"syscall"
"testing"
"time"
"github.com/jacobsa/fuse"
"github.com/jacobsa/fuse/samples"
"github.com/jacobsa/fuse/samples/hellofs"
"github.com/googlecloudplatform/gcsfuse/timeutil"
. "github.com/jacobsa/oglematchers"
. "github.com/jacobsa/ogletest"
"golang.org/x/net/context"
)
func TestHelloFS(t *testing.T) { RunTests(t) }
@ -40,63 +35,17 @@ func TestHelloFS(t *testing.T) { RunTests(t) }
////////////////////////////////////////////////////////////////////////
type HelloFSTest struct {
clock timeutil.SimulatedClock
mfs *fuse.MountedFileSystem
samples.SampleTest
}
var _ SetUpInterface = &HelloFSTest{}
var _ TearDownInterface = &HelloFSTest{}
func init() { RegisterTestSuite(&HelloFSTest{}) }
func (t *HelloFSTest) 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("", "hello_fs_test")
if err != nil {
panic("ioutil.TempDir: " + err.Error())
t.FileSystem = &hellofs.HelloFS{
Clock: &t.Clock,
}
// Mount a file system.
fs := &hellofs.HelloFS{
Clock: &t.clock,
}
if t.mfs, err = fuse.Mount(mountPoint, fs, &fuse.MountConfig{}); err != nil {
panic("Mount: " + err.Error())
}
if err = t.mfs.WaitForReady(context.Background()); err != nil {
panic("MountedFileSystem.WaitForReady: " + err.Error())
}
}
func (t *HelloFSTest) 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())
}
t.SampleTest.SetUp(ti)
}
////////////////////////////////////////////////////////////////////////
@ -104,7 +53,7 @@ func (t *HelloFSTest) TearDown() {
////////////////////////////////////////////////////////////////////////
func (t *HelloFSTest) ReadDir_Root() {
entries, err := ioutil.ReadDir(t.mfs.Dir())
entries, err := ioutil.ReadDir(t.Dir)
AssertEq(nil, err)
AssertEq(2, len(entries))
@ -115,7 +64,7 @@ func (t *HelloFSTest) ReadDir_Root() {
ExpectEq("dir", fi.Name())
ExpectEq(0, fi.Size())
ExpectEq(os.ModeDir|0555, fi.Mode())
ExpectEq(0, t.clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectEq(0, t.Clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectTrue(fi.IsDir())
// hello
@ -123,12 +72,12 @@ func (t *HelloFSTest) ReadDir_Root() {
ExpectEq("hello", fi.Name())
ExpectEq(len("Hello, world!"), fi.Size())
ExpectEq(0444, fi.Mode())
ExpectEq(0, t.clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectEq(0, t.Clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectFalse(fi.IsDir())
}
func (t *HelloFSTest) ReadDir_Dir() {
entries, err := ioutil.ReadDir(path.Join(t.mfs.Dir(), "dir"))
entries, err := ioutil.ReadDir(path.Join(t.Dir, "dir"))
AssertEq(nil, err)
AssertEq(1, len(entries))
@ -139,76 +88,76 @@ func (t *HelloFSTest) ReadDir_Dir() {
ExpectEq("world", fi.Name())
ExpectEq(len("Hello, world!"), fi.Size())
ExpectEq(0444, fi.Mode())
ExpectEq(0, t.clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectEq(0, t.Clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectFalse(fi.IsDir())
}
func (t *HelloFSTest) ReadDir_NonExistent() {
_, err := ioutil.ReadDir(path.Join(t.mfs.Dir(), "foobar"))
_, err := ioutil.ReadDir(path.Join(t.Dir, "foobar"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("no such file")))
}
func (t *HelloFSTest) Stat_Hello() {
fi, err := os.Stat(path.Join(t.mfs.Dir(), "hello"))
fi, err := os.Stat(path.Join(t.Dir, "hello"))
AssertEq(nil, err)
ExpectEq("hello", fi.Name())
ExpectEq(len("Hello, world!"), fi.Size())
ExpectEq(0444, fi.Mode())
ExpectEq(0, t.clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectEq(0, t.Clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectFalse(fi.IsDir())
ExpectEq(1, fi.Sys().(*syscall.Stat_t).Nlink)
}
func (t *HelloFSTest) Stat_Dir() {
fi, err := os.Stat(path.Join(t.mfs.Dir(), "dir"))
fi, err := os.Stat(path.Join(t.Dir, "dir"))
AssertEq(nil, err)
ExpectEq("dir", fi.Name())
ExpectEq(0, fi.Size())
ExpectEq(0555|os.ModeDir, fi.Mode())
ExpectEq(0, t.clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectEq(0, t.Clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectTrue(fi.IsDir())
ExpectEq(1, fi.Sys().(*syscall.Stat_t).Nlink)
}
func (t *HelloFSTest) Stat_World() {
fi, err := os.Stat(path.Join(t.mfs.Dir(), "dir/world"))
fi, err := os.Stat(path.Join(t.Dir, "dir/world"))
AssertEq(nil, err)
ExpectEq("world", fi.Name())
ExpectEq(len("Hello, world!"), fi.Size())
ExpectEq(0444, fi.Mode())
ExpectEq(0, t.clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectEq(0, t.Clock.Now().Sub(fi.ModTime()), "ModTime: %v", fi.ModTime())
ExpectFalse(fi.IsDir())
ExpectEq(1, fi.Sys().(*syscall.Stat_t).Nlink)
}
func (t *HelloFSTest) Stat_NonExistent() {
_, err := os.Stat(path.Join(t.mfs.Dir(), "foobar"))
_, err := os.Stat(path.Join(t.Dir, "foobar"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("no such file")))
}
func (t *HelloFSTest) ReadFile_Hello() {
slice, err := ioutil.ReadFile(path.Join(t.mfs.Dir(), "hello"))
slice, err := ioutil.ReadFile(path.Join(t.Dir, "hello"))
AssertEq(nil, err)
ExpectEq("Hello, world!", string(slice))
}
func (t *HelloFSTest) ReadFile_Dir() {
_, err := ioutil.ReadFile(path.Join(t.mfs.Dir(), "dir"))
_, err := ioutil.ReadFile(path.Join(t.Dir, "dir"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("is a directory")))
}
func (t *HelloFSTest) ReadFile_World() {
slice, err := ioutil.ReadFile(path.Join(t.mfs.Dir(), "dir/world"))
slice, err := ioutil.ReadFile(path.Join(t.Dir, "dir/world"))
AssertEq(nil, err)
ExpectEq("Hello, world!", string(slice))
@ -221,7 +170,7 @@ func (t *HelloFSTest) OpenAndRead() {
var err error
// Open the file.
f, err := os.Open(path.Join(t.mfs.Dir(), "hello"))
f, err := os.Open(path.Join(t.Dir, "hello"))
defer func() {
if f != nil {
ExpectEq(nil, f.Close())
@ -268,7 +217,7 @@ func (t *HelloFSTest) OpenAndRead() {
}
func (t *HelloFSTest) Open_NonExistent() {
_, err := os.Open(path.Join(t.mfs.Dir(), "foobar"))
_, err := os.Open(path.Join(t.Dir, "foobar"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("no such file")))

259
samples/memfs/memfs_test.go
View File

@ -17,23 +17,19 @@ package memfs_test
import (
"io"
"io/ioutil"
"log"
"os"
"os/user"
"path"
"strconv"
"strings"
"syscall"
"testing"
"time"
"github.com/jacobsa/fuse"
"github.com/jacobsa/fuse/fusetesting"
"github.com/jacobsa/fuse/samples"
"github.com/jacobsa/fuse/samples/memfs"
"github.com/googlecloudplatform/gcsfuse/timeutil"
. "github.com/jacobsa/oglematchers"
. "github.com/jacobsa/ogletest"
"golang.org/x/net/context"
)
func TestMemFS(t *testing.T) { RunTests(t) }
@ -86,77 +82,14 @@ func applyUmask(m os.FileMode) os.FileMode {
////////////////////////////////////////////////////////////////////////
type MemFSTest struct {
clock timeutil.SimulatedClock
mfs *fuse.MountedFileSystem
// Files to close when tearing down. Nil entries are skipped.
toClose []io.Closer
samples.SampleTest
}
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(currentUid(), currentGid(), &t.clock)
t.mfs, err = fuse.Mount(mountPoint, fs, &fuse.MountConfig{})
if err != nil {
panic("Mount: " + err.Error())
}
if err = t.mfs.WaitForReady(context.Background()); err != nil {
panic("MountedFileSystem.WaitForReady: " + err.Error())
}
}
func (t *MemFSTest) TearDown() {
// Close any files we opened.
for _, c := range t.toClose {
if c == nil {
continue
}
err := c.Close()
if err != nil {
panic(err)
}
}
// 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())
}
t.FileSystem = memfs.NewMemFS(currentUid(), currentGid(), &t.Clock)
t.SampleTest.SetUp(ti)
}
////////////////////////////////////////////////////////////////////////
@ -164,7 +97,7 @@ func (t *MemFSTest) TearDown() {
////////////////////////////////////////////////////////////////////////
func (t *MemFSTest) ContentsOfEmptyFileSystem() {
entries, err := ioutil.ReadDir(t.mfs.Dir())
entries, err := ioutil.ReadDir(t.Dir)
AssertEq(nil, err)
ExpectThat(entries, ElementsAre())
@ -176,18 +109,18 @@ func (t *MemFSTest) Mkdir_OneLevel() {
var stat *syscall.Stat_t
var entries []os.FileInfo
dirName := path.Join(t.mfs.Dir(), "dir")
dirName := path.Join(t.Dir, "dir")
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Create a directory within the root.
createTime := t.clock.Now()
createTime := t.Clock.Now()
err = os.Mkdir(dirName, 0754)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Stat the directory.
fi, err = os.Stat(dirName)
@ -208,7 +141,7 @@ func (t *MemFSTest) Mkdir_OneLevel() {
ExpectEq(0, stat.Size)
// Check the root's mtime.
fi, err = os.Stat(t.mfs.Dir())
fi, err = os.Stat(t.Dir)
AssertEq(nil, err)
ExpectEq(0, fi.ModTime().Sub(createTime))
@ -220,7 +153,7 @@ func (t *MemFSTest) Mkdir_OneLevel() {
ExpectThat(entries, ElementsAre())
// Read the root.
entries, err = ioutil.ReadDir(t.mfs.Dir())
entries, err = ioutil.ReadDir(t.Dir)
AssertEq(nil, err)
AssertEq(1, len(entries))
@ -237,22 +170,22 @@ func (t *MemFSTest) Mkdir_TwoLevels() {
var entries []os.FileInfo
// Create a directory within the root.
err = os.Mkdir(path.Join(t.mfs.Dir(), "parent"), 0700)
err = os.Mkdir(path.Join(t.Dir, "parent"), 0700)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Create a child of that directory.
createTime := t.clock.Now()
err = os.Mkdir(path.Join(t.mfs.Dir(), "parent/dir"), 0754)
createTime := t.Clock.Now()
err = os.Mkdir(path.Join(t.Dir, "parent/dir"), 0754)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Stat the directory.
fi, err = os.Stat(path.Join(t.mfs.Dir(), "parent/dir"))
fi, err = os.Stat(path.Join(t.Dir, "parent/dir"))
stat = fi.Sys().(*syscall.Stat_t)
AssertEq(nil, err)
@ -270,18 +203,18 @@ func (t *MemFSTest) Mkdir_TwoLevels() {
ExpectEq(0, stat.Size)
// Check the parent's mtime.
fi, err = os.Stat(path.Join(t.mfs.Dir(), "parent"))
fi, err = os.Stat(path.Join(t.Dir, "parent"))
AssertEq(nil, err)
ExpectEq(0, fi.ModTime().Sub(createTime))
// Read the directory.
entries, err = ioutil.ReadDir(path.Join(t.mfs.Dir(), "parent/dir"))
entries, err = ioutil.ReadDir(path.Join(t.Dir, "parent/dir"))
AssertEq(nil, err)
ExpectThat(entries, ElementsAre())
// Read the parent.
entries, err = ioutil.ReadDir(path.Join(t.mfs.Dir(), "parent"))
entries, err = ioutil.ReadDir(path.Join(t.Dir, "parent"))
AssertEq(nil, err)
AssertEq(1, len(entries))
@ -293,7 +226,7 @@ func (t *MemFSTest) Mkdir_TwoLevels() {
func (t *MemFSTest) Mkdir_AlreadyExists() {
var err error
dirName := path.Join(t.mfs.Dir(), "dir")
dirName := path.Join(t.Dir, "dir")
// Create the directory once.
err = os.Mkdir(dirName, 0754)
@ -310,7 +243,7 @@ func (t *MemFSTest) Mkdir_IntermediateIsFile() {
var err error
// Create a file.
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
err = ioutil.WriteFile(fileName, []byte{}, 0700)
AssertEq(nil, err)
@ -326,7 +259,7 @@ func (t *MemFSTest) Mkdir_IntermediateIsNonExistent() {
var err error
// Attempt to create a sub-directory of a non-existent sub-directory.
dirName := path.Join(t.mfs.Dir(), "foo/dir")
dirName := path.Join(t.Dir, "foo/dir")
err = os.Mkdir(dirName, 0754)
AssertNe(nil, err)
@ -337,11 +270,11 @@ func (t *MemFSTest) Mkdir_PermissionDenied() {
var err error
// Create a directory within the root without write permissions.
err = os.Mkdir(path.Join(t.mfs.Dir(), "parent"), 0500)
err = os.Mkdir(path.Join(t.Dir, "parent"), 0500)
AssertEq(nil, err)
// Attempt to create a child of that directory.
err = os.Mkdir(path.Join(t.mfs.Dir(), "parent/dir"), 0754)
err = os.Mkdir(path.Join(t.Dir, "parent/dir"), 0754)
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("permission denied")))
@ -353,15 +286,15 @@ func (t *MemFSTest) CreateNewFile_InRoot() {
var stat *syscall.Stat_t
// Write a file.
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
const contents = "Hello\x00world"
createTime := t.clock.Now()
createTime := t.Clock.Now()
err = ioutil.WriteFile(fileName, []byte(contents), 0400)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Stat it.
fi, err = os.Stat(fileName)
@ -393,7 +326,7 @@ func (t *MemFSTest) CreateNewFile_InSubDir() {
var stat *syscall.Stat_t
// Create a sub-dir.
dirName := path.Join(t.mfs.Dir(), "dir")
dirName := path.Join(t.Dir, "dir")
err = os.Mkdir(dirName, 0700)
AssertEq(nil, err)
@ -401,12 +334,12 @@ func (t *MemFSTest) CreateNewFile_InSubDir() {
fileName := path.Join(dirName, "foo")
const contents = "Hello\x00world"
createTime := t.clock.Now()
createTime := t.Clock.Now()
err = ioutil.WriteFile(fileName, []byte(contents), 0400)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Stat it.
fi, err = os.Stat(fileName)
@ -439,27 +372,27 @@ func (t *MemFSTest) ModifyExistingFile_InRoot() {
var stat *syscall.Stat_t
// Write a file.
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
createTime := t.clock.Now()
createTime := t.Clock.Now()
err = ioutil.WriteFile(fileName, []byte("Hello, world!"), 0600)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Open the file and modify it.
f, err := os.OpenFile(fileName, os.O_WRONLY, 0400)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
modifyTime := t.clock.Now()
modifyTime := t.Clock.Now()
n, err = f.WriteAt([]byte("H"), 0)
AssertEq(nil, err)
AssertEq(1, n)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Stat the file.
fi, err = os.Stat(fileName)
@ -492,32 +425,32 @@ func (t *MemFSTest) ModifyExistingFile_InSubDir() {
var stat *syscall.Stat_t
// Create a sub-directory.
dirName := path.Join(t.mfs.Dir(), "dir")
dirName := path.Join(t.Dir, "dir")
err = os.Mkdir(dirName, 0700)
AssertEq(nil, err)
// Write a file.
fileName := path.Join(dirName, "foo")
createTime := t.clock.Now()
createTime := t.Clock.Now()
err = ioutil.WriteFile(fileName, []byte("Hello, world!"), 0600)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Open the file and modify it.
f, err := os.OpenFile(fileName, os.O_WRONLY, 0400)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
modifyTime := t.clock.Now()
modifyTime := t.Clock.Now()
n, err = f.WriteAt([]byte("H"), 0)
AssertEq(nil, err)
AssertEq(1, n)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Stat the file.
fi, err = os.Stat(fileName)
@ -547,7 +480,7 @@ func (t *MemFSTest) UnlinkFile_Exists() {
var err error
// Write a file.
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
err = ioutil.WriteFile(fileName, []byte("Hello, world!"), 0600)
AssertEq(nil, err)
@ -562,24 +495,24 @@ func (t *MemFSTest) UnlinkFile_Exists() {
ExpectThat(err, Error(HasSubstr("no such file")))
// Nothing should be in the directory.
entries, err := ioutil.ReadDir(t.mfs.Dir())
entries, err := ioutil.ReadDir(t.Dir)
AssertEq(nil, err)
ExpectThat(entries, ElementsAre())
}
func (t *MemFSTest) UnlinkFile_NonExistent() {
err := os.Remove(path.Join(t.mfs.Dir(), "foo"))
err := os.Remove(path.Join(t.Dir, "foo"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("no such file")))
}
func (t *MemFSTest) UnlinkFile_StillOpen() {
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
// Create and open a file.
f, err := os.OpenFile(fileName, os.O_RDWR|os.O_CREATE, 0600)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Write some data into it.
@ -592,7 +525,7 @@ func (t *MemFSTest) UnlinkFile_StillOpen() {
AssertEq(nil, err)
// The directory should no longer contain it.
entries, err := ioutil.ReadDir(t.mfs.Dir())
entries, err := ioutil.ReadDir(t.Dir)
AssertEq(nil, err)
ExpectThat(entries, ElementsAre())
@ -622,11 +555,11 @@ func (t *MemFSTest) Rmdir_NonEmpty() {
var err error
// Create two levels of directories.
err = os.MkdirAll(path.Join(t.mfs.Dir(), "foo/bar"), 0754)
err = os.MkdirAll(path.Join(t.Dir, "foo/bar"), 0754)
AssertEq(nil, err)
// Attempt to remove the parent.
err = os.Remove(path.Join(t.mfs.Dir(), "foo"))
err = os.Remove(path.Join(t.Dir, "foo"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("not empty")))
@ -637,44 +570,44 @@ func (t *MemFSTest) Rmdir_Empty() {
var entries []os.FileInfo
// Create two levels of directories.
err = os.MkdirAll(path.Join(t.mfs.Dir(), "foo/bar"), 0754)
err = os.MkdirAll(path.Join(t.Dir, "foo/bar"), 0754)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Remove the leaf.
rmTime := t.clock.Now()
err = os.Remove(path.Join(t.mfs.Dir(), "foo/bar"))
rmTime := t.Clock.Now()
err = os.Remove(path.Join(t.Dir, "foo/bar"))
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// There should be nothing left in the parent.
entries, err = ioutil.ReadDir(path.Join(t.mfs.Dir(), "foo"))
entries, err = ioutil.ReadDir(path.Join(t.Dir, "foo"))
AssertEq(nil, err)
ExpectThat(entries, ElementsAre())
// Check the parent's mtime.
fi, err := os.Stat(path.Join(t.mfs.Dir(), "foo"))
fi, err := os.Stat(path.Join(t.Dir, "foo"))
AssertEq(nil, err)
ExpectEq(0, fi.ModTime().Sub(rmTime))
// Remove the parent.
err = os.Remove(path.Join(t.mfs.Dir(), "foo"))
err = os.Remove(path.Join(t.Dir, "foo"))
AssertEq(nil, err)
// Now the root directory should be empty, too.
entries, err = ioutil.ReadDir(t.mfs.Dir())
entries, err = ioutil.ReadDir(t.Dir)
AssertEq(nil, err)
ExpectThat(entries, ElementsAre())
}
func (t *MemFSTest) Rmdir_NonExistent() {
err := os.Remove(path.Join(t.mfs.Dir(), "blah"))
err := os.Remove(path.Join(t.Dir, "blah"))
AssertNe(nil, err)
ExpectThat(err, Error(HasSubstr("no such file or directory")))
@ -684,15 +617,15 @@ func (t *MemFSTest) Rmdir_OpenedForReading() {
var err error
// Create a directory.
createTime := t.clock.Now()
err = os.Mkdir(path.Join(t.mfs.Dir(), "dir"), 0700)
createTime := t.Clock.Now()
err = os.Mkdir(path.Join(t.Dir, "dir"), 0700)
AssertEq(nil, err)
// Simulate time advancing.
t.clock.AdvanceTime(time.Second)
t.Clock.AdvanceTime(time.Second)
// Open the directory for reading.
f, err := os.Open(path.Join(t.mfs.Dir(), "dir"))
f, err := os.Open(path.Join(t.Dir, "dir"))
defer func() {
if f != nil {
ExpectEq(nil, f.Close())
@ -702,18 +635,18 @@ func (t *MemFSTest) Rmdir_OpenedForReading() {
AssertEq(nil, err)
// Remove the directory.
err = os.Remove(path.Join(t.mfs.Dir(), "dir"))
err = os.Remove(path.Join(t.Dir, "dir"))
AssertEq(nil, err)
// Create a new directory, with the same name even, and add some contents
// within it.
err = os.MkdirAll(path.Join(t.mfs.Dir(), "dir/foo"), 0700)
err = os.MkdirAll(path.Join(t.Dir, "dir/foo"), 0700)
AssertEq(nil, err)
err = os.MkdirAll(path.Join(t.mfs.Dir(), "dir/bar"), 0700)
err = os.MkdirAll(path.Join(t.Dir, "dir/bar"), 0700)
AssertEq(nil, err)
err = os.MkdirAll(path.Join(t.mfs.Dir(), "dir/baz"), 0700)
err = os.MkdirAll(path.Join(t.Dir, "dir/baz"), 0700)
AssertEq(nil, err)
// We should still be able to stat the open file handle. It should show up as
@ -740,11 +673,11 @@ func (t *MemFSTest) CaseSensitive() {
var err error
// Create a file.
err = ioutil.WriteFile(path.Join(t.mfs.Dir(), "file"), []byte{}, 0400)
err = ioutil.WriteFile(path.Join(t.Dir, "file"), []byte{}, 0400)
AssertEq(nil, err)
// Create a directory.
err = os.Mkdir(path.Join(t.mfs.Dir(), "dir"), 0400)
err = os.Mkdir(path.Join(t.Dir, "dir"), 0400)
AssertEq(nil, err)
// Attempt to stat with the wrong case.
@ -758,7 +691,7 @@ func (t *MemFSTest) CaseSensitive() {
}
for _, name := range names {
_, err = os.Stat(path.Join(t.mfs.Dir(), name))
_, err = os.Stat(path.Join(t.Dir, name))
AssertNe(nil, err, "Name: %s", name)
AssertThat(err, Error(HasSubstr("no such file or directory")))
}
@ -769,8 +702,8 @@ func (t *MemFSTest) WriteOverlapsEndOfFile() {
var n int
// Create a file.
f, err := os.Create(path.Join(t.mfs.Dir(), "foo"))
t.toClose = append(t.toClose, f)
f, err := os.Create(path.Join(t.Dir, "foo"))
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Make it 4 bytes long.
@ -793,8 +726,8 @@ func (t *MemFSTest) WriteStartsAtEndOfFile() {
var n int
// Create a file.
f, err := os.Create(path.Join(t.mfs.Dir(), "foo"))
t.toClose = append(t.toClose, f)
f, err := os.Create(path.Join(t.Dir, "foo"))
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Make it 2 bytes long.
@ -817,8 +750,8 @@ func (t *MemFSTest) WriteStartsPastEndOfFile() {
var n int
// Create a file.
f, err := os.Create(path.Join(t.mfs.Dir(), "foo"))
t.toClose = append(t.toClose, f)
f, err := os.Create(path.Join(t.Dir, "foo"))
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Write the range [2, 6).
@ -837,8 +770,8 @@ func (t *MemFSTest) WriteAtDoesntChangeOffset_NotAppendMode() {
var n int
// Create a file.
f, err := os.Create(path.Join(t.mfs.Dir(), "foo"))
t.toClose = append(t.toClose, f)
f, err := os.Create(path.Join(t.Dir, "foo"))
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Make it 16 bytes long.
@ -866,11 +799,11 @@ func (t *MemFSTest) WriteAtDoesntChangeOffset_AppendMode() {
// Create a file in append mode.
f, err := os.OpenFile(
path.Join(t.mfs.Dir(), "foo"),
path.Join(t.Dir, "foo"),
os.O_RDWR|os.O_APPEND|os.O_CREATE,
0600)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Make it 16 bytes long.
@ -899,13 +832,13 @@ func (t *MemFSTest) AppendMode() {
buf := make([]byte, 1024)
// Create a file with some contents.
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
err = ioutil.WriteFile(fileName, []byte("Jello, "), 0600)
AssertEq(nil, err)
// Open the file in append mode.
f, err := os.OpenFile(fileName, os.O_RDWR|os.O_APPEND, 0600)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Seek to somewhere silly and then write.
@ -953,8 +886,8 @@ func (t *MemFSTest) ReadsPastEndOfFile() {
buf := make([]byte, 1024)
// Create a file.
f, err := os.Create(path.Join(t.mfs.Dir(), "foo"))
t.toClose = append(t.toClose, f)
f, err := os.Create(path.Join(t.Dir, "foo"))
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Give it some contents.
@ -983,7 +916,7 @@ func (t *MemFSTest) ReadsPastEndOfFile() {
func (t *MemFSTest) Truncate_Smaller() {
var err error
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
// Create a file.
err = ioutil.WriteFile(fileName, []byte("taco"), 0600)
@ -991,7 +924,7 @@ func (t *MemFSTest) Truncate_Smaller() {
// Open it for modification.
f, err := os.OpenFile(fileName, os.O_RDWR, 0)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Truncate it.
@ -1011,7 +944,7 @@ func (t *MemFSTest) Truncate_Smaller() {
func (t *MemFSTest) Truncate_SameSize() {
var err error
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
// Create a file.
err = ioutil.WriteFile(fileName, []byte("taco"), 0600)
@ -1019,7 +952,7 @@ func (t *MemFSTest) Truncate_SameSize() {
// Open it for modification.
f, err := os.OpenFile(fileName, os.O_RDWR, 0)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Truncate it.
@ -1039,7 +972,7 @@ func (t *MemFSTest) Truncate_SameSize() {
func (t *MemFSTest) Truncate_Larger() {
var err error
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
// Create a file.
err = ioutil.WriteFile(fileName, []byte("taco"), 0600)
@ -1047,7 +980,7 @@ func (t *MemFSTest) Truncate_Larger() {
// Open it for modification.
f, err := os.OpenFile(fileName, os.O_RDWR, 0)
t.toClose = append(t.toClose, f)
t.ToClose = append(t.ToClose, f)
AssertEq(nil, err)
// Truncate it.
@ -1067,7 +1000,7 @@ func (t *MemFSTest) Truncate_Larger() {
func (t *MemFSTest) Chmod() {
var err error
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
// Create a file.
err = ioutil.WriteFile(fileName, []byte(""), 0600)
@ -1085,7 +1018,7 @@ func (t *MemFSTest) Chmod() {
func (t *MemFSTest) Chtimes() {
var err error
fileName := path.Join(t.mfs.Dir(), "foo")
fileName := path.Join(t.Dir, "foo")
// Create a file.
err = ioutil.WriteFile(fileName, []byte(""), 0600)
@ -1103,7 +1036,7 @@ func (t *MemFSTest) Chtimes() {
}
func (t *MemFSTest) ReadDirWhileModifying() {
dirName := path.Join(t.mfs.Dir(), "dir")
dirName := path.Join(t.Dir, "dir")
createFile := func(name string) {
AssertEq(nil, ioutil.WriteFile(path.Join(dirName, name), []byte{}, 0400))
}
@ -1114,7 +1047,7 @@ func (t *MemFSTest) ReadDirWhileModifying() {
// Open the directory.
d, err := os.Open(dirName)
t.toClose = append(t.toClose, d)
t.ToClose = append(t.ToClose, d)
AssertEq(nil, err)
// Add four files.

152
samples/testing.go Normal file
View File

@ -0,0 +1,152 @@
// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package samples
import (
"fmt"
"io"
"io/ioutil"
"log"
"strings"
"time"
"github.com/googlecloudplatform/gcsfuse/timeutil"
"github.com/jacobsa/fuse"
"github.com/jacobsa/ogletest"
"golang.org/x/net/context"
)
// A struct that implements common behavior needed by tests in the samples/
// directory. Use it as an embedded field in your test fixture, calling its
// SetUp method from your SetUp method after setting the FileSystem field.
type SampleTest struct {
// The file system under test and the configuration with which it should be
// mounted. These must be set by the user of this type before calling SetUp;
// all the other fields below are set by SetUp itself.
FileSystem fuse.FileSystem
MountConfig fuse.MountConfig
// A context object that can be used for long-running operations.
Ctx context.Context
// A clock with a fixed initial time. The test's set up method may use this
// to wire the file system with a clock, if desired.
Clock timeutil.SimulatedClock
// The directory at which the file system is mounted.
Dir string
// Anothing non-nil in this slice will be closed by TearDown. The test will
// fail if closing fails.
ToClose []io.Closer
mfs *fuse.MountedFileSystem
}
// Mount the supplied file system and initialize the other exported fields of
// the struct. Panics on error.
//
// REQUIRES: t.FileSystem has been set.
func (t *SampleTest) SetUp(ti *ogletest.TestInfo) {
err := t.initialize(t.FileSystem, &t.MountConfig)
if err != nil {
panic(err)
}
}
// Like Initialize, but doens't panic.
func (t *SampleTest) initialize(
fs fuse.FileSystem,
config *fuse.MountConfig) (err error) {
// Initialize the context.
t.Ctx = context.Background()
// Initialize the clock.
t.Clock.SetTime(time.Date(2012, 8, 15, 22, 56, 0, 0, time.Local))
// Set up a temporary directory.
t.Dir, err = ioutil.TempDir("", "sample_test")
if err != nil {
err = fmt.Errorf("TempDir: %v", err)
return
}
// Mount the file system.
t.mfs, err = fuse.Mount(t.Dir, fs, config)
if err != nil {
err = fmt.Errorf("Mount: %v", err)
return
}
// Wait for it to be read.
err = t.mfs.WaitForReady(t.Ctx)
if err != nil {
err = fmt.Errorf("WaitForReady: %v", err)
return
}
return
}
// Unmount the file system and clean up. Panics on error.
func (t *SampleTest) TearDown() {
err := t.destroy()
if err != nil {
panic(err)
}
}
// Like TearDown, but doesn't panic.
func (t *SampleTest) destroy() (err error) {
// Close what is necessary.
for _, c := range t.ToClose {
if c == nil {
continue
}
ogletest.ExpectEq(nil, c.Close())
}
// Was the file system mounted?
if t.mfs == nil {
return
}
// 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
}
err = fmt.Errorf("MountedFileSystem.Unmount: %v", err)
return
}
if err = t.mfs.Join(t.Ctx); err != nil {
err = fmt.Errorf("MountedFileSystem.Join: %v", err)
return
}
return
}