lotus/lib/backupds/backupds_test.go
Eng Zer Jun abef90423d
refactor: use os.ReadDir for lightweight directory reading
`os.ReadDir` was added in Go 1.16 as part of the deprecation of `ioutil`
package. It is a more efficient implementation than `ioutil.ReadDir`.

Reference: https://pkg.go.dev/io/ioutil#ReadDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2022-09-09 19:53:40 +08:00

88 lines
1.9 KiB
Go

// stm: #unit
package backupds
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"github.com/ipfs/go-datastore"
"github.com/stretchr/testify/require"
)
const valSize = 512 << 10
func putVals(t *testing.T, ds datastore.Datastore, start, end int) {
for i := start; i < end; i++ {
err := ds.Put(context.TODO(), datastore.NewKey(fmt.Sprintf("%d", i)), []byte(fmt.Sprintf("%d-%s", i, strings.Repeat("~", valSize))))
require.NoError(t, err)
}
}
func checkVals(t *testing.T, ds datastore.Datastore, start, end int, exist bool) {
for i := start; i < end; i++ {
v, err := ds.Get(context.TODO(), datastore.NewKey(fmt.Sprintf("%d", i)))
if exist {
require.NoError(t, err)
expect := []byte(fmt.Sprintf("%d-%s", i, strings.Repeat("~", valSize)))
require.EqualValues(t, expect, v)
} else {
require.ErrorIs(t, err, datastore.ErrNotFound)
}
}
}
func TestNoLogRestore(t *testing.T) {
//stm: @OTHER_DATASTORE_RESTORE_002
ds1 := datastore.NewMapDatastore()
putVals(t, ds1, 0, 10)
bds, err := Wrap(ds1, NoLogdir)
require.NoError(t, err)
var bup bytes.Buffer
require.NoError(t, bds.Backup(context.TODO(), &bup))
putVals(t, ds1, 10, 20)
ds2 := datastore.NewMapDatastore()
require.NoError(t, RestoreInto(&bup, ds2))
checkVals(t, ds2, 0, 10, true)
checkVals(t, ds2, 10, 20, false)
}
func TestLogRestore(t *testing.T) {
//stm: @OTHER_DATASTORE_RESTORE_001
logdir := t.TempDir()
ds1 := datastore.NewMapDatastore()
putVals(t, ds1, 0, 10)
bds, err := Wrap(ds1, logdir)
require.NoError(t, err)
putVals(t, bds, 10, 20)
require.NoError(t, bds.Close())
fls, err := os.ReadDir(logdir)
require.NoError(t, err)
require.Equal(t, 1, len(fls))
bf, err := ioutil.ReadFile(filepath.Join(logdir, fls[0].Name()))
require.NoError(t, err)
ds2 := datastore.NewMapDatastore()
require.NoError(t, RestoreInto(bytes.NewReader(bf), ds2))
checkVals(t, ds2, 0, 20, true)
}