mirror of
https://github.com/octoleo/restic.git
synced 2024-11-26 06:46:34 +00:00
5cdcc99eba
Since backend.ID is always a slice of constant length, use an array
instead of a slice. Mostly, arrays behave as slices, except that an
array cannot be nil, so use `*backend.ID` insteaf of `backend.ID` in
places where the absence of an ID is possible (e.g. for the Subtree of a
Node, which may not present when the node is a file node).
This change allows to directly use backend.ID as the the key for a map,
so that arbitrary data structures (e.g. a Set implemented as a
map[backend.ID]struct{}) can easily be formed.
110 lines
2.1 KiB
Go
110 lines
2.1 KiB
Go
package pack_test
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/rand"
|
|
"crypto/sha256"
|
|
"encoding/binary"
|
|
"encoding/json"
|
|
"io"
|
|
"io/ioutil"
|
|
"testing"
|
|
|
|
"github.com/restic/restic/backend"
|
|
"github.com/restic/restic/crypto"
|
|
"github.com/restic/restic/pack"
|
|
. "github.com/restic/restic/test"
|
|
)
|
|
|
|
var lengths = []int{23, 31650, 25860, 10928, 13769, 19862, 5211, 127, 13690, 30231}
|
|
|
|
func TestCreatePack(t *testing.T) {
|
|
type Buf struct {
|
|
data []byte
|
|
id backend.ID
|
|
}
|
|
|
|
bufs := []Buf{}
|
|
|
|
for _, l := range lengths {
|
|
b := make([]byte, l)
|
|
_, err := io.ReadFull(rand.Reader, b)
|
|
OK(t, err)
|
|
h := sha256.Sum256(b)
|
|
bufs = append(bufs, Buf{data: b, id: h})
|
|
}
|
|
|
|
file := bytes.NewBuffer(nil)
|
|
|
|
// create random keys
|
|
k := crypto.NewRandomKey()
|
|
|
|
// pack blobs
|
|
p := pack.NewPacker(k, file)
|
|
for _, b := range bufs {
|
|
p.Add(pack.Tree, b.id, bytes.NewReader(b.data))
|
|
}
|
|
|
|
// write file
|
|
n, err := p.Finalize()
|
|
OK(t, err)
|
|
|
|
written := 0
|
|
// data
|
|
for _, l := range lengths {
|
|
written += l
|
|
}
|
|
// header length
|
|
written += binary.Size(uint32(0))
|
|
// header
|
|
written += len(lengths) * (binary.Size(pack.BlobType(0)) + binary.Size(uint32(0)) + backend.IDSize)
|
|
// header crypto
|
|
written += crypto.Extension
|
|
|
|
// check length
|
|
Equals(t, uint(written), n)
|
|
Equals(t, uint(written), p.Size())
|
|
|
|
// read and parse it again
|
|
rd := bytes.NewReader(file.Bytes())
|
|
np, err := pack.NewUnpacker(k, nil, rd)
|
|
OK(t, err)
|
|
Equals(t, len(np.Entries), len(bufs))
|
|
|
|
for i, b := range bufs {
|
|
e := np.Entries[i]
|
|
Equals(t, b.id, e.ID)
|
|
|
|
brd, err := e.GetReader(rd)
|
|
OK(t, err)
|
|
data, err := ioutil.ReadAll(brd)
|
|
OK(t, err)
|
|
|
|
Assert(t, bytes.Equal(b.data, data),
|
|
"data for blob %v doesn't match", i)
|
|
}
|
|
}
|
|
|
|
var blobTypeJson = []struct {
|
|
t pack.BlobType
|
|
res string
|
|
}{
|
|
{pack.Data, `"data"`},
|
|
{pack.Tree, `"tree"`},
|
|
}
|
|
|
|
func TestBlobTypeJSON(t *testing.T) {
|
|
for _, test := range blobTypeJson {
|
|
// test serialize
|
|
buf, err := json.Marshal(test.t)
|
|
OK(t, err)
|
|
Equals(t, test.res, string(buf))
|
|
|
|
// test unserialize
|
|
var v pack.BlobType
|
|
err = json.Unmarshal([]byte(test.res), &v)
|
|
OK(t, err)
|
|
Equals(t, test.t, v)
|
|
}
|
|
}
|