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bitcask_test.go
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bitcask_test.go
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package bitcask
import (
"bytes"
"errors"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"reflect"
"sort"
"strings"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"git.mills.io/prologic/bitcask/internal"
"git.mills.io/prologic/bitcask/internal/config"
"git.mills.io/prologic/bitcask/internal/mocks"
)
var (
ErrMockError = errors.New("error: mock error")
)
type sortByteArrays [][]byte
func (b sortByteArrays) Len() int {
return len(b)
}
func (b sortByteArrays) Less(i, j int) bool {
switch bytes.Compare(b[i], b[j]) {
case -1:
return true
case 0, 1:
return false
}
return false
}
func (b sortByteArrays) Swap(i, j int) {
b[j], b[i] = b[i], b[j]
}
func SortByteArrays(src [][]byte) [][]byte {
sorted := sortByteArrays(src)
sort.Sort(sorted)
return sorted
}
func TestAll(t *testing.T) {
var (
db *Bitcask
testdir string
err error
)
assert := assert.New(t)
testdir, err = ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err = db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Len", func(t *testing.T) {
assert.Equal(1, db.Len())
})
t.Run("PutWithTTL", func(t *testing.T) {
err = db.PutWithTTL([]byte("bar"), []byte("baz"), 0)
assert.NoError(err)
})
t.Run("GetExpiredKey", func(t *testing.T) {
time.Sleep(time.Millisecond)
_, err := db.Get([]byte("bar"))
assert.Error(err)
assert.Equal(ErrKeyExpired, err)
})
t.Run("Has", func(t *testing.T) {
assert.True(db.Has([]byte("foo")))
})
t.Run("HasWithExpired", func(t *testing.T) {
err = db.PutWithTTL([]byte("bar"), []byte("baz"), 0)
assert.NoError(err)
time.Sleep(time.Millisecond)
assert.False(db.Has([]byte("bar")))
})
t.Run("RunGC", func(t *testing.T) {
err = db.PutWithTTL([]byte("bar"), []byte("baz"), 0)
assert.NoError(err)
time.Sleep(time.Millisecond)
err = db.RunGC()
assert.NoError(err)
_, err := db.Get([]byte("bar"))
assert.Error(err)
assert.Equal(ErrKeyNotFound, err)
})
t.Run("Keys", func(t *testing.T) {
keys := make([][]byte, 0)
for key := range db.Keys() {
keys = append(keys, key)
}
assert.Equal([][]byte{[]byte("foo")}, keys)
})
t.Run("Fold", func(t *testing.T) {
var (
keys [][]byte
values [][]byte
)
err := db.Fold(func(key []byte) error {
value, err := db.Get(key)
if err != nil {
return err
}
keys = append(keys, key)
values = append(values, value)
return nil
})
assert.NoError(err)
assert.Equal([][]byte{[]byte("foo")}, keys)
assert.Equal([][]byte{[]byte("bar")}, values)
})
t.Run("Delete", func(t *testing.T) {
err := db.Delete([]byte("foo"))
assert.NoError(err)
_, err = db.Get([]byte("foo"))
assert.Error(err)
assert.Equal(ErrKeyNotFound, err)
})
t.Run("Sync", func(t *testing.T) {
err = db.Sync()
assert.NoError(err)
})
t.Run("Backup", func(t *testing.T) {
path, err := ioutil.TempDir("", "backup")
defer os.RemoveAll(path)
assert.NoError(err)
err = db.Backup(filepath.Join(path, "db-backup"))
assert.NoError(err)
})
t.Run("Sift", func(t *testing.T) {
err = db.Put([]byte("toBeSifted"), []byte("siftMe"))
assert.NoError(err)
err = db.Put([]byte("notToBeSifted"), []byte("dontSiftMe"))
assert.NoError(err)
err := db.Sift(func(key []byte) (bool, error) {
value, err := db.Get(key)
if err != nil {
return false, err
}
if string(value) == "siftMe" {
return true, nil
}
return false, nil
})
assert.NoError(err)
_, err = db.Get([]byte("toBeSifted"))
assert.Equal(ErrKeyNotFound, err)
_, err = db.Get([]byte("notToBeSifted"))
assert.NoError(err)
})
t.Run("SiftScan", func(t *testing.T) {
err := db.DeleteAll()
assert.NoError(err)
err = db.Put([]byte("toBeSifted"), []byte("siftMe"))
assert.NoError(err)
err = db.Put([]byte("toBeSkipped"), []byte("siftMe"))
assert.NoError(err)
err = db.Put([]byte("toBeSiftedAsWell"), []byte("siftMe"))
assert.NoError(err)
err = db.Put([]byte("toBeSiftedButNotReally"), []byte("dontSiftMe"))
assert.NoError(err)
err = db.SiftScan([]byte("toBeSifted"), func(key []byte) (bool, error) {
value, err := db.Get(key)
if err != nil {
return false, err
}
if string(value) == "siftMe" {
return true, nil
}
return false, nil
})
assert.NoError(err)
_, err = db.Get([]byte("toBeSifted"))
assert.Equal(ErrKeyNotFound, err)
_, err = db.Get([]byte("toBeSiftedAsWell"))
assert.Equal(ErrKeyNotFound, err)
_, err = db.Get([]byte("toBeSkipped"))
assert.NoError(err)
_, err = db.Get([]byte("toBeSiftedButNotReally"))
assert.NoError(err)
})
t.Run("DeleteAll", func(t *testing.T) {
err = db.DeleteAll()
assert.NoError(err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
}
func TestDeleteAll(t *testing.T) {
assert := assert.New(t)
testdir, _ := ioutil.TempDir("", "bitcask")
db, _ := Open(testdir)
_ = db.Put([]byte("foo"), []byte("foo"))
_ = db.Put([]byte("bar"), []byte("bar"))
_ = db.Put([]byte("baz"), []byte("baz"))
assert.Equal(3, db.Len())
err := db.DeleteAll()
assert.NoError(err)
assert.Equal(0, db.Len())
_, err = db.Get([]byte("foo"))
assert.Equal(ErrKeyNotFound, err)
_, err = db.Get([]byte("bar"))
assert.Equal(ErrKeyNotFound, err)
_, err = db.Get([]byte("baz"))
assert.Equal(ErrKeyNotFound, err)
}
func TestReopen1(t *testing.T) {
assert := assert.New(t)
for i := 0; i < 10; i++ {
testdir, _ := ioutil.TempDir("", "bitcask")
db, _ := Open(testdir, WithMaxDatafileSize(1))
_ = db.Put([]byte("foo"), []byte("bar"))
_ = db.Put([]byte("foo"), []byte("bar1"))
_ = db.Put([]byte("foo"), []byte("bar2"))
_ = db.Put([]byte("foo"), []byte("bar3"))
_ = db.Put([]byte("foo"), []byte("bar4"))
_ = db.Put([]byte("foo"), []byte("bar5"))
_ = db.Reopen()
val, _ := db.Get([]byte("foo"))
assert.Equal("bar5", string(val))
}
}
func TestReopen(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Reopen", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err = db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("PutWithTTL", func(t *testing.T) {
err = db.PutWithTTL([]byte("bar"), []byte("baz"), 0)
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Reopen", func(t *testing.T) {
err = db.Reopen()
assert.NoError(err)
})
t.Run("GetAfterReopen", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("PutAfterReopen", func(t *testing.T) {
err = db.Put([]byte("zzz"), []byte("foo"))
assert.NoError(err)
})
t.Run("GetAfterReopenAndPut", func(t *testing.T) {
val, err := db.Get([]byte("zzz"))
assert.NoError(err)
assert.Equal([]byte("foo"), val)
})
t.Run("GetExpiredKeyAfterReopen", func(t *testing.T) {
val, err := db.Get([]byte("bar"))
assert.Error(err)
assert.Equal(ErrKeyExpired, err)
assert.Nil(val)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
})
}
func TestDeletedKeys(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Setup", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err = db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Delete", func(t *testing.T) {
err := db.Delete([]byte("foo"))
assert.NoError(err)
_, err = db.Get([]byte("foo"))
assert.Error(err)
assert.Equal(ErrKeyNotFound, err)
})
t.Run("Sync", func(t *testing.T) {
err = db.Sync()
assert.NoError(err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
})
t.Run("Reopen", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
_, err = db.Get([]byte("foo"))
assert.Error(err)
assert.Equal(ErrKeyNotFound, err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
})
}
func TestMetadata(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
defer os.RemoveAll(testdir)
db, err := Open(testdir)
assert.NoError(err)
err = db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
err = db.Close()
assert.NoError(err)
db, err = Open(testdir)
assert.NoError(err)
t.Run("IndexUptoDateAfterCloseAndOpen", func(t *testing.T) {
assert.Equal(true, db.metadata.IndexUpToDate)
})
t.Run("IndexUptoDateAfterPut", func(t *testing.T) {
assert.NoError(db.Put([]byte("foo1"), []byte("bar1")))
assert.Equal(false, db.metadata.IndexUpToDate)
})
t.Run("Reclaimable", func(t *testing.T) {
assert.Equal(int64(0), db.Reclaimable())
})
t.Run("ReclaimableAfterNewPut", func(t *testing.T) {
assert.NoError(db.Put([]byte("hello"), []byte("world")))
assert.Equal(int64(0), db.Reclaimable())
})
t.Run("ReclaimableAfterRepeatedPut", func(t *testing.T) {
assert.NoError(db.Put([]byte("hello"), []byte("world")))
assert.Equal(int64(34), db.Reclaimable())
})
t.Run("ReclaimableAfterDelete", func(t *testing.T) {
assert.NoError(db.Delete([]byte("hello")))
assert.Equal(int64(97), db.Reclaimable())
})
t.Run("ReclaimableAfterNonExistingDelete", func(t *testing.T) {
assert.NoError(db.Delete([]byte("hello1")))
assert.Equal(int64(97), db.Reclaimable())
})
t.Run("ReclaimableAfterDeleteAll", func(t *testing.T) {
assert.NoError(db.DeleteAll())
assert.Equal(int64(214), db.Reclaimable())
})
t.Run("ReclaimableAfterMerge", func(t *testing.T) {
assert.NoError(db.Merge())
assert.Equal(int64(0), db.Reclaimable())
})
t.Run("IndexUptoDateAfterMerge", func(t *testing.T) {
assert.Equal(true, db.metadata.IndexUpToDate)
})
t.Run("ReclaimableAfterMergeAndDeleteAll", func(t *testing.T) {
assert.NoError(db.DeleteAll())
assert.Equal(int64(0), db.Reclaimable())
})
}
func TestConfigErrors(t *testing.T) {
assert := assert.New(t)
t.Run("CorruptConfig", func(t *testing.T) {
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
defer os.RemoveAll(testdir)
db, err := Open(testdir)
assert.NoError(err)
assert.NoError(db.Close())
assert.NoError(ioutil.WriteFile(filepath.Join(testdir, "config.json"), []byte("foo bar baz"), 0600))
_, err = Open(testdir)
assert.Error(err)
})
t.Run("BadConfigPath", func(t *testing.T) {
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
defer os.RemoveAll(testdir)
assert.NoError(os.Mkdir(filepath.Join(testdir, "config.json"), 0700))
_, err = Open(testdir)
assert.Error(err)
})
}
func TestAutoRecovery(t *testing.T) {
withAutoRecovery := []bool{false, true}
for _, autoRecovery := range withAutoRecovery {
t.Run(fmt.Sprintf("%v", autoRecovery), func(t *testing.T) {
require := require.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
require.NoError(err)
db, err := Open(testdir)
require.NoError(err)
// Insert 10 key-value pairs and verify all is ok.
makeKeyVal := func(i int) ([]byte, []byte) {
return []byte(fmt.Sprintf("foo%d", i)), []byte(fmt.Sprintf("bar%d", i))
}
n := 10
for i := 0; i < n; i++ {
key, val := makeKeyVal(i)
err = db.Put(key, val)
require.NoError(err)
}
for i := 0; i < n; i++ {
key, val := makeKeyVal(i)
rval, err := db.Get(key)
require.NoError(err)
require.Equal(val, rval)
}
err = db.Close()
require.NoError(err)
// Corrupt the last inserted key
f, err := os.OpenFile(path.Join(testdir, "000000000.data"), os.O_RDWR, 0755)
require.NoError(err)
fi, err := f.Stat()
require.NoError(err)
err = f.Truncate(fi.Size() - 1)
require.NoError(err)
err = f.Close()
require.NoError(err)
db, err = Open(testdir, WithAutoRecovery(autoRecovery))
t.Logf("err: %s", err)
require.NoError(err)
defer db.Close()
// Check that all values but the last are still intact.
for i := 0; i < 9; i++ {
key, val := makeKeyVal(i)
rval, err := db.Get(key)
require.NoError(err)
require.Equal(val, rval)
}
// Check the index has no more keys than non-corrupted ones.
// i.e: all but the last one.
numKeys := 0
for range db.Keys() {
numKeys++
}
if !autoRecovery {
// We are opening without autorepair, and thus are
// in a corrupted state. The index isn't coherent with
// the datafile.
require.Equal(n, numKeys)
return
}
require.Equal(n-1, numKeys, "The index should have n-1 keys")
// Double-check explicitly the corrupted one isn't here.
// This check is redundant considering the last two checks,
// but doesn't hurt.
corrKey, _ := makeKeyVal(9)
_, err = db.Get(corrKey)
require.Equal(ErrKeyNotFound, err)
})
}
}
func TestLoadIndexes(t *testing.T) {
assert := assert.New(t)
testdir, err1 := ioutil.TempDir("", "bitcask")
assert.NoError(err1)
defer os.RemoveAll(testdir)
var db *Bitcask
var err error
t.Run("Setup", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
for i := 0; i < 5; i++ {
key := fmt.Sprintf("key%d", i)
val := fmt.Sprintf("val%d", i)
err := db.Put([]byte(key), []byte(val))
assert.NoError(err)
}
for i := 0; i < 5; i++ {
key := fmt.Sprintf("foo%d", i)
val := fmt.Sprintf("bar%d", i)
err := db.PutWithTTL([]byte(key), []byte(val), time.Duration(i)*time.Second)
assert.NoError(err)
}
err = db.Close()
assert.NoError(err)
})
t.Run("OpenAgain", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
assert.Equal(10, db.trie.Size())
assert.Equal(5, db.ttlIndex.Size())
})
}
func TestReIndex(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Setup", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err = db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("PutWithExpiry", func(t *testing.T) {
err = db.PutWithTTL([]byte("bar"), []byte("baz"), 0)
assert.NoError(err)
})
t.Run("PutWithLargeExpiry", func(t *testing.T) {
err = db.PutWithTTL([]byte("bar1"), []byte("baz1"), time.Hour)
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Sync", func(t *testing.T) {
err = db.Sync()
assert.NoError(err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
t.Run("DeleteIndex", func(t *testing.T) {
err := os.Remove(filepath.Join(testdir, "index"))
assert.NoError(err)
err = os.Remove(filepath.Join(testdir, ttlIndexFile))
assert.NoError(err)
})
})
t.Run("Reopen", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("GetKeyWithExpiry", func(t *testing.T) {
val, err := db.Get([]byte("bar"))
assert.Error(err)
assert.Equal(ErrKeyExpired, err)
assert.Nil(val)
val, err = db.Get([]byte("bar1"))
assert.NoError(err)
assert.Equal([]byte("baz1"), val)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
})
}
func TestReIndexDeletedKeys(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Setup", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err = db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Delete", func(t *testing.T) {
err := db.Delete([]byte("foo"))
assert.NoError(err)
_, err = db.Get([]byte("foo"))
assert.Error(err)
assert.Equal(ErrKeyNotFound, err)
})
t.Run("Sync", func(t *testing.T) {
err = db.Sync()
assert.NoError(err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
t.Run("DeleteIndex", func(t *testing.T) {
err := os.Remove(filepath.Join(testdir, "index"))
assert.NoError(err)
})
})
t.Run("Reopen", func(t *testing.T) {
var (
db *Bitcask
err error
)
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
_, err := db.Get([]byte("foo"))
assert.Error(err)
assert.Equal(ErrKeyNotFound, err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
})
}
func TestSync(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
var db *Bitcask
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir, WithSync(true))
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
key := []byte(strings.Repeat(" ", 17))
value := []byte("foobar")
err = db.Put(key, value)
})
t.Run("Put", func(t *testing.T) {
err = db.Put([]byte("hello"), []byte("world"))
assert.NoError(err)
})
}
func TestMaxKeySize(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
var db *Bitcask
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir, WithMaxKeySize(16))
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
key := []byte(strings.Repeat(" ", 17))
value := []byte("foobar")
err = db.Put(key, value)
assert.Error(err)
assert.Equal(ErrKeyTooLarge, err)
})
}
func TestMaxValueSize(t *testing.T) {
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
var db *Bitcask
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir, WithMaxValueSize(16))
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
key := []byte("foo")
value := []byte(strings.Repeat(" ", 17))
err = db.Put(key, value)
assert.Error(err)
assert.Equal(ErrValueTooLarge, err)
})
}
func TestStats(t *testing.T) {
var (
db *Bitcask
err error
)
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Setup", func(t *testing.T) {
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err := db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Stats", func(t *testing.T) {
stats, err := db.Stats()
assert.NoError(err)
assert.Equal(stats.Datafiles, 0)
assert.Equal(stats.Keys, 1)
})
t.Run("Sync", func(t *testing.T) {
err = db.Sync()
assert.NoError(err)
})
t.Run("Close", func(t *testing.T) {
err = db.Close()
assert.NoError(err)
})
})
}
func TestStatsError(t *testing.T) {
var (
db *Bitcask
err error
)
assert := assert.New(t)
testdir, err := ioutil.TempDir("", "bitcask")
assert.NoError(err)
t.Run("Setup", func(t *testing.T) {
t.Run("Open", func(t *testing.T) {
db, err = Open(testdir)
assert.NoError(err)
})
t.Run("Put", func(t *testing.T) {
err := db.Put([]byte("foo"), []byte("bar"))
assert.NoError(err)
})
t.Run("Get", func(t *testing.T) {
val, err := db.Get([]byte("foo"))
assert.NoError(err)
assert.Equal([]byte("bar"), val)
})
t.Run("Stats", func(t *testing.T) {
stats, err := db.Stats()
assert.NoError(err)
assert.Equal(stats.Datafiles, 0)
assert.Equal(stats.Keys, 1)
})
})
t.Run("Test", func(t *testing.T) {
t.Run("FabricatedDestruction", func(t *testing.T) {
// This would never happen in reality :D
// Or would it? :)
err = os.RemoveAll(testdir)
assert.NoError(err)
})
t.Run("Stats", func(t *testing.T) {
_, err := db.Stats()
assert.Error(err)
})
})
}
func TestDirFileModeBeforeUmask(t *testing.T) {
assert := assert.New(t)
t.Run("Setup", func(t *testing.T) {
t.Run("Default DirFileModeBeforeUmask is 0700", func(t *testing.T) {
testdir, err := ioutil.TempDir("", "bitcask")
embeddedDir := filepath.Join(testdir, "cache")
assert.NoError(err)
defer os.RemoveAll(testdir)
defaultTestMode := os.FileMode(0700)
db, err := Open(embeddedDir)
assert.NoError(err)
defer db.Close()
err = filepath.Walk(testdir, func(path string, info os.FileInfo, err error) error {
// skip the root directory
if path == testdir {
return nil
}
if info.IsDir() {
// perms for directory on disk are filtered through defaultTestMode, AND umask of user running test.
// this means the mkdir calls can only FURTHER restrict permissions, not grant more (preventing escalatation).
// to make this test OS agnostic, we'll skip using golang.org/x/sys/unix, inferring umask via XOR and AND NOT.
// create anotherDir with allPerms - to infer umask
anotherDir := filepath.Join(testdir, "temp")
err := os.Mkdir(anotherDir, os.ModePerm)
assert.NoError(err)
defer os.RemoveAll(anotherDir)
anotherStat, err := os.Stat(anotherDir)
assert.NoError(err)
// infer umask from anotherDir
umask := os.ModePerm ^ (anotherStat.Mode() & os.ModePerm)
assert.Equal(info.Mode()&os.ModePerm, defaultTestMode&^umask)
}
return nil
})
assert.NoError(err)
})
t.Run("Dir FileModeBeforeUmask is set via options for all subdirectories", func(t *testing.T) {
testdir, err := ioutil.TempDir("", "bitcask")
embeddedDir := filepath.Join(testdir, "cache")
assert.NoError(err)
defer os.RemoveAll(testdir)
testMode := os.FileMode(0713)
db, err := Open(embeddedDir, WithDirFileModeBeforeUmask(testMode))
assert.NoError(err)
defer db.Close()