mirror of
https://github.com/octoleo/restic.git
synced 2024-11-22 21:05:10 +00:00
541 lines
13 KiB
Go
541 lines
13 KiB
Go
package repository_test
|
|
|
|
import (
|
|
"bytes"
|
|
"math/rand"
|
|
"sync"
|
|
"testing"
|
|
|
|
"github.com/restic/restic/internal/repository"
|
|
"github.com/restic/restic/internal/restic"
|
|
rtest "github.com/restic/restic/internal/test"
|
|
)
|
|
|
|
func TestIndexSerialize(t *testing.T) {
|
|
type testEntry struct {
|
|
id restic.ID
|
|
pack restic.ID
|
|
tpe restic.BlobType
|
|
offset, length uint
|
|
}
|
|
tests := []testEntry{}
|
|
|
|
idx := repository.NewIndex()
|
|
|
|
// create 50 packs with 20 blobs each
|
|
for i := 0; i < 50; i++ {
|
|
packID := restic.NewRandomID()
|
|
|
|
pos := uint(0)
|
|
for j := 0; j < 20; j++ {
|
|
id := restic.NewRandomID()
|
|
length := uint(i*100 + j)
|
|
idx.Store(restic.PackedBlob{
|
|
Blob: restic.Blob{
|
|
Type: restic.DataBlob,
|
|
ID: id,
|
|
Offset: pos,
|
|
Length: length,
|
|
},
|
|
PackID: packID,
|
|
})
|
|
|
|
tests = append(tests, testEntry{
|
|
id: id,
|
|
pack: packID,
|
|
tpe: restic.DataBlob,
|
|
offset: pos,
|
|
length: length,
|
|
})
|
|
|
|
pos += length
|
|
}
|
|
}
|
|
|
|
wr := bytes.NewBuffer(nil)
|
|
err := idx.Encode(wr)
|
|
rtest.OK(t, err)
|
|
|
|
idx2ID := restic.NewRandomID()
|
|
idx2, oldFormat, err := repository.DecodeIndex(wr.Bytes(), idx2ID)
|
|
rtest.OK(t, err)
|
|
rtest.Assert(t, idx2 != nil,
|
|
"nil returned for decoded index")
|
|
rtest.Assert(t, !oldFormat, "new index format recognized as old format")
|
|
indexID, err := idx2.IDs()
|
|
rtest.OK(t, err)
|
|
rtest.Equals(t, indexID, restic.IDs{idx2ID})
|
|
|
|
wr2 := bytes.NewBuffer(nil)
|
|
err = idx2.Encode(wr2)
|
|
rtest.OK(t, err)
|
|
|
|
for _, testBlob := range tests {
|
|
list := idx.Lookup(testBlob.id, testBlob.tpe, nil)
|
|
if len(list) != 1 {
|
|
t.Errorf("expected one result for blob %v, got %v: %v", testBlob.id.Str(), len(list), list)
|
|
}
|
|
result := list[0]
|
|
|
|
rtest.Equals(t, testBlob.pack, result.PackID)
|
|
rtest.Equals(t, testBlob.tpe, result.Type)
|
|
rtest.Equals(t, testBlob.offset, result.Offset)
|
|
rtest.Equals(t, testBlob.length, result.Length)
|
|
|
|
list2 := idx2.Lookup(testBlob.id, testBlob.tpe, nil)
|
|
if len(list2) != 1 {
|
|
t.Errorf("expected one result for blob %v, got %v: %v", testBlob.id.Str(), len(list2), list2)
|
|
}
|
|
result2 := list2[0]
|
|
|
|
rtest.Equals(t, testBlob.pack, result2.PackID)
|
|
rtest.Equals(t, testBlob.tpe, result2.Type)
|
|
rtest.Equals(t, testBlob.offset, result2.Offset)
|
|
rtest.Equals(t, testBlob.length, result2.Length)
|
|
}
|
|
|
|
// add more blobs to idx
|
|
newtests := []testEntry{}
|
|
for i := 0; i < 10; i++ {
|
|
packID := restic.NewRandomID()
|
|
|
|
pos := uint(0)
|
|
for j := 0; j < 10; j++ {
|
|
id := restic.NewRandomID()
|
|
length := uint(i*100 + j)
|
|
idx.Store(restic.PackedBlob{
|
|
Blob: restic.Blob{
|
|
Type: restic.DataBlob,
|
|
ID: id,
|
|
Offset: pos,
|
|
Length: length,
|
|
},
|
|
PackID: packID,
|
|
})
|
|
|
|
newtests = append(newtests, testEntry{
|
|
id: id,
|
|
pack: packID,
|
|
tpe: restic.DataBlob,
|
|
offset: pos,
|
|
length: length,
|
|
})
|
|
|
|
pos += length
|
|
}
|
|
}
|
|
|
|
// finalize; serialize idx, unserialize to idx3
|
|
idx.Finalize()
|
|
wr3 := bytes.NewBuffer(nil)
|
|
err = idx.Encode(wr3)
|
|
rtest.OK(t, err)
|
|
|
|
rtest.Assert(t, idx.Final(),
|
|
"index not final after encoding")
|
|
|
|
id := restic.NewRandomID()
|
|
rtest.OK(t, idx.SetID(id))
|
|
ids, err := idx.IDs()
|
|
rtest.OK(t, err)
|
|
rtest.Equals(t, restic.IDs{id}, ids)
|
|
|
|
idx3, oldFormat, err := repository.DecodeIndex(wr3.Bytes(), id)
|
|
rtest.OK(t, err)
|
|
rtest.Assert(t, idx3 != nil,
|
|
"nil returned for decoded index")
|
|
rtest.Assert(t, idx3.Final(),
|
|
"decoded index is not final")
|
|
rtest.Assert(t, !oldFormat, "new index format recognized as old format")
|
|
|
|
// all new blobs must be in the index
|
|
for _, testBlob := range newtests {
|
|
list := idx3.Lookup(testBlob.id, testBlob.tpe, nil)
|
|
if len(list) != 1 {
|
|
t.Errorf("expected one result for blob %v, got %v: %v", testBlob.id.Str(), len(list), list)
|
|
}
|
|
|
|
blob := list[0]
|
|
|
|
rtest.Equals(t, testBlob.pack, blob.PackID)
|
|
rtest.Equals(t, testBlob.tpe, blob.Type)
|
|
rtest.Equals(t, testBlob.offset, blob.Offset)
|
|
rtest.Equals(t, testBlob.length, blob.Length)
|
|
}
|
|
}
|
|
|
|
func TestIndexSize(t *testing.T) {
|
|
idx := repository.NewIndex()
|
|
|
|
packs := 200
|
|
blobs := 100
|
|
for i := 0; i < packs; i++ {
|
|
packID := restic.NewRandomID()
|
|
|
|
pos := uint(0)
|
|
for j := 0; j < blobs; j++ {
|
|
id := restic.NewRandomID()
|
|
length := uint(i*100 + j)
|
|
idx.Store(restic.PackedBlob{
|
|
Blob: restic.Blob{
|
|
Type: restic.DataBlob,
|
|
ID: id,
|
|
Offset: pos,
|
|
Length: length,
|
|
},
|
|
PackID: packID,
|
|
})
|
|
|
|
pos += length
|
|
}
|
|
}
|
|
|
|
wr := bytes.NewBuffer(nil)
|
|
|
|
err := idx.Encode(wr)
|
|
rtest.OK(t, err)
|
|
|
|
t.Logf("Index file size for %d blobs in %d packs is %d", blobs*packs, packs, wr.Len())
|
|
}
|
|
|
|
// example index serialization from doc/Design.rst
|
|
var docExample = []byte(`
|
|
{
|
|
"supersedes": [
|
|
"ed54ae36197f4745ebc4b54d10e0f623eaaaedd03013eb7ae90df881b7781452"
|
|
],
|
|
"packs": [
|
|
{
|
|
"id": "73d04e6125cf3c28a299cc2f3cca3b78ceac396e4fcf9575e34536b26782413c",
|
|
"blobs": [
|
|
{
|
|
"id": "3ec79977ef0cf5de7b08cd12b874cd0f62bbaf7f07f3497a5b1bbcc8cb39b1ce",
|
|
"type": "data",
|
|
"offset": 0,
|
|
"length": 25
|
|
},{
|
|
"id": "9ccb846e60d90d4eb915848add7aa7ea1e4bbabfc60e573db9f7bfb2789afbae",
|
|
"type": "tree",
|
|
"offset": 38,
|
|
"length": 100
|
|
},
|
|
{
|
|
"id": "d3dc577b4ffd38cc4b32122cabf8655a0223ed22edfd93b353dc0c3f2b0fdf66",
|
|
"type": "data",
|
|
"offset": 150,
|
|
"length": 123
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
`)
|
|
|
|
var docOldExample = []byte(`
|
|
[ {
|
|
"id": "73d04e6125cf3c28a299cc2f3cca3b78ceac396e4fcf9575e34536b26782413c",
|
|
"blobs": [
|
|
{
|
|
"id": "3ec79977ef0cf5de7b08cd12b874cd0f62bbaf7f07f3497a5b1bbcc8cb39b1ce",
|
|
"type": "data",
|
|
"offset": 0,
|
|
"length": 25
|
|
},{
|
|
"id": "9ccb846e60d90d4eb915848add7aa7ea1e4bbabfc60e573db9f7bfb2789afbae",
|
|
"type": "tree",
|
|
"offset": 38,
|
|
"length": 100
|
|
},
|
|
{
|
|
"id": "d3dc577b4ffd38cc4b32122cabf8655a0223ed22edfd93b353dc0c3f2b0fdf66",
|
|
"type": "data",
|
|
"offset": 150,
|
|
"length": 123
|
|
}
|
|
]
|
|
} ]
|
|
`)
|
|
|
|
var exampleTests = []struct {
|
|
id, packID restic.ID
|
|
tpe restic.BlobType
|
|
offset, length uint
|
|
}{
|
|
{
|
|
restic.TestParseID("3ec79977ef0cf5de7b08cd12b874cd0f62bbaf7f07f3497a5b1bbcc8cb39b1ce"),
|
|
restic.TestParseID("73d04e6125cf3c28a299cc2f3cca3b78ceac396e4fcf9575e34536b26782413c"),
|
|
restic.DataBlob, 0, 25,
|
|
}, {
|
|
restic.TestParseID("9ccb846e60d90d4eb915848add7aa7ea1e4bbabfc60e573db9f7bfb2789afbae"),
|
|
restic.TestParseID("73d04e6125cf3c28a299cc2f3cca3b78ceac396e4fcf9575e34536b26782413c"),
|
|
restic.TreeBlob, 38, 100,
|
|
}, {
|
|
restic.TestParseID("d3dc577b4ffd38cc4b32122cabf8655a0223ed22edfd93b353dc0c3f2b0fdf66"),
|
|
restic.TestParseID("73d04e6125cf3c28a299cc2f3cca3b78ceac396e4fcf9575e34536b26782413c"),
|
|
restic.DataBlob, 150, 123,
|
|
},
|
|
}
|
|
|
|
var exampleLookupTest = struct {
|
|
packID restic.ID
|
|
blobs map[restic.ID]restic.BlobType
|
|
}{
|
|
restic.TestParseID("73d04e6125cf3c28a299cc2f3cca3b78ceac396e4fcf9575e34536b26782413c"),
|
|
map[restic.ID]restic.BlobType{
|
|
restic.TestParseID("3ec79977ef0cf5de7b08cd12b874cd0f62bbaf7f07f3497a5b1bbcc8cb39b1ce"): restic.DataBlob,
|
|
restic.TestParseID("9ccb846e60d90d4eb915848add7aa7ea1e4bbabfc60e573db9f7bfb2789afbae"): restic.TreeBlob,
|
|
restic.TestParseID("d3dc577b4ffd38cc4b32122cabf8655a0223ed22edfd93b353dc0c3f2b0fdf66"): restic.DataBlob,
|
|
},
|
|
}
|
|
|
|
func TestIndexUnserialize(t *testing.T) {
|
|
oldIdx := restic.IDs{restic.TestParseID("ed54ae36197f4745ebc4b54d10e0f623eaaaedd03013eb7ae90df881b7781452")}
|
|
|
|
idx, oldFormat, err := repository.DecodeIndex(docExample, restic.NewRandomID())
|
|
rtest.OK(t, err)
|
|
rtest.Assert(t, !oldFormat, "new index format recognized as old format")
|
|
|
|
for _, test := range exampleTests {
|
|
list := idx.Lookup(test.id, test.tpe, nil)
|
|
if len(list) != 1 {
|
|
t.Errorf("expected one result for blob %v, got %v: %v", test.id.Str(), len(list), list)
|
|
}
|
|
blob := list[0]
|
|
|
|
t.Logf("looking for blob %v/%v, got %v", test.tpe, test.id.Str(), blob)
|
|
|
|
rtest.Equals(t, test.packID, blob.PackID)
|
|
rtest.Equals(t, test.tpe, blob.Type)
|
|
rtest.Equals(t, test.offset, blob.Offset)
|
|
rtest.Equals(t, test.length, blob.Length)
|
|
}
|
|
|
|
rtest.Equals(t, oldIdx, idx.Supersedes())
|
|
|
|
blobs := idx.ListPack(exampleLookupTest.packID)
|
|
if len(blobs) != len(exampleLookupTest.blobs) {
|
|
t.Fatalf("expected %d blobs in pack, got %d", len(exampleLookupTest.blobs), len(blobs))
|
|
}
|
|
|
|
for _, blob := range blobs {
|
|
b, ok := exampleLookupTest.blobs[blob.ID]
|
|
if !ok {
|
|
t.Errorf("unexpected blob %v found", blob.ID.Str())
|
|
}
|
|
if blob.Type != b {
|
|
t.Errorf("unexpected type for blob %v: want %v, got %v", blob.ID.Str(), b, blob.Type)
|
|
}
|
|
}
|
|
}
|
|
|
|
var (
|
|
benchmarkIndexJSON []byte
|
|
benchmarkIndexJSONOnce sync.Once
|
|
)
|
|
|
|
func initBenchmarkIndexJSON() {
|
|
idx, _ := createRandomIndex(rand.New(rand.NewSource(0)), 200000)
|
|
var buf bytes.Buffer
|
|
idx.Encode(&buf)
|
|
benchmarkIndexJSON = buf.Bytes()
|
|
}
|
|
|
|
func BenchmarkDecodeIndex(b *testing.B) {
|
|
benchmarkIndexJSONOnce.Do(initBenchmarkIndexJSON)
|
|
|
|
id := restic.NewRandomID()
|
|
b.ResetTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
_, _, err := repository.DecodeIndex(benchmarkIndexJSON, id)
|
|
rtest.OK(b, err)
|
|
}
|
|
}
|
|
|
|
func BenchmarkDecodeIndexParallel(b *testing.B) {
|
|
benchmarkIndexJSONOnce.Do(initBenchmarkIndexJSON)
|
|
id := restic.NewRandomID()
|
|
|
|
b.ResetTimer()
|
|
|
|
b.RunParallel(func(pb *testing.PB) {
|
|
for pb.Next() {
|
|
_, _, err := repository.DecodeIndex(benchmarkIndexJSON, id)
|
|
rtest.OK(b, err)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestIndexUnserializeOld(t *testing.T) {
|
|
idx, oldFormat, err := repository.DecodeIndex(docOldExample, restic.NewRandomID())
|
|
rtest.OK(t, err)
|
|
rtest.Assert(t, oldFormat, "old index format recognized as new format")
|
|
|
|
for _, test := range exampleTests {
|
|
list := idx.Lookup(test.id, test.tpe, nil)
|
|
if len(list) != 1 {
|
|
t.Errorf("expected one result for blob %v, got %v: %v", test.id.Str(), len(list), list)
|
|
}
|
|
blob := list[0]
|
|
|
|
rtest.Equals(t, test.packID, blob.PackID)
|
|
rtest.Equals(t, test.tpe, blob.Type)
|
|
rtest.Equals(t, test.offset, blob.Offset)
|
|
rtest.Equals(t, test.length, blob.Length)
|
|
}
|
|
|
|
rtest.Equals(t, 0, len(idx.Supersedes()))
|
|
}
|
|
|
|
func TestIndexPacks(t *testing.T) {
|
|
idx := repository.NewIndex()
|
|
packs := restic.NewIDSet()
|
|
|
|
for i := 0; i < 20; i++ {
|
|
packID := restic.NewRandomID()
|
|
idx.Store(restic.PackedBlob{
|
|
Blob: restic.Blob{
|
|
Type: restic.DataBlob,
|
|
ID: restic.NewRandomID(),
|
|
Offset: 0,
|
|
Length: 23,
|
|
},
|
|
PackID: packID,
|
|
})
|
|
|
|
packs.Insert(packID)
|
|
}
|
|
|
|
idxPacks := idx.Packs()
|
|
rtest.Assert(t, packs.Equals(idxPacks), "packs in index do not match packs added to index")
|
|
}
|
|
|
|
const maxPackSize = 16 * 1024 * 1024
|
|
|
|
// This function generates a (insecure) random ID, similar to NewRandomID
|
|
func NewRandomTestID(rng *rand.Rand) restic.ID {
|
|
id := restic.ID{}
|
|
rng.Read(id[:])
|
|
return id
|
|
}
|
|
|
|
func createRandomIndex(rng *rand.Rand, packfiles int) (idx *repository.Index, lookupID restic.ID) {
|
|
idx = repository.NewIndex()
|
|
|
|
// create index with given number of pack files
|
|
for i := 0; i < packfiles; i++ {
|
|
packID := NewRandomTestID(rng)
|
|
var blobs []restic.Blob
|
|
offset := 0
|
|
for offset < maxPackSize {
|
|
size := 2000 + rng.Intn(4*1024*1024)
|
|
id := NewRandomTestID(rng)
|
|
blobs = append(blobs, restic.Blob{
|
|
Type: restic.DataBlob,
|
|
ID: id,
|
|
Length: uint(size),
|
|
Offset: uint(offset),
|
|
})
|
|
|
|
offset += size
|
|
}
|
|
idx.StorePack(packID, blobs)
|
|
|
|
if i == 0 {
|
|
lookupID = blobs[rng.Intn(len(blobs))].ID
|
|
}
|
|
}
|
|
|
|
return idx, lookupID
|
|
}
|
|
|
|
func BenchmarkIndexHasUnknown(b *testing.B) {
|
|
idx, _ := createRandomIndex(rand.New(rand.NewSource(0)), 200000)
|
|
lookupID := restic.NewRandomID()
|
|
|
|
b.ResetTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
idx.Has(lookupID, restic.DataBlob)
|
|
}
|
|
}
|
|
|
|
func BenchmarkIndexHasKnown(b *testing.B) {
|
|
idx, lookupID := createRandomIndex(rand.New(rand.NewSource(0)), 200000)
|
|
|
|
b.ResetTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
idx.Has(lookupID, restic.DataBlob)
|
|
}
|
|
}
|
|
|
|
func BenchmarkIndexAlloc(b *testing.B) {
|
|
rng := rand.New(rand.NewSource(0))
|
|
b.ReportAllocs()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
createRandomIndex(rng, 200000)
|
|
}
|
|
}
|
|
|
|
func BenchmarkIndexAllocParallel(b *testing.B) {
|
|
b.ReportAllocs()
|
|
|
|
b.RunParallel(func(pb *testing.PB) {
|
|
rng := rand.New(rand.NewSource(0))
|
|
for pb.Next() {
|
|
createRandomIndex(rng, 200000)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestIndexHas(t *testing.T) {
|
|
type testEntry struct {
|
|
id restic.ID
|
|
pack restic.ID
|
|
tpe restic.BlobType
|
|
offset, length uint
|
|
}
|
|
tests := []testEntry{}
|
|
|
|
idx := repository.NewIndex()
|
|
|
|
// create 50 packs with 20 blobs each
|
|
for i := 0; i < 50; i++ {
|
|
packID := restic.NewRandomID()
|
|
|
|
pos := uint(0)
|
|
for j := 0; j < 20; j++ {
|
|
id := restic.NewRandomID()
|
|
length := uint(i*100 + j)
|
|
idx.Store(restic.PackedBlob{
|
|
Blob: restic.Blob{
|
|
Type: restic.DataBlob,
|
|
ID: id,
|
|
Offset: pos,
|
|
Length: length,
|
|
},
|
|
PackID: packID,
|
|
})
|
|
|
|
tests = append(tests, testEntry{
|
|
id: id,
|
|
pack: packID,
|
|
tpe: restic.DataBlob,
|
|
offset: pos,
|
|
length: length,
|
|
})
|
|
|
|
pos += length
|
|
}
|
|
}
|
|
|
|
for _, testBlob := range tests {
|
|
rtest.Assert(t, idx.Has(testBlob.id, testBlob.tpe), "Index reports not having data blob added to it")
|
|
}
|
|
|
|
rtest.Assert(t, !idx.Has(restic.NewRandomID(), restic.DataBlob), "Index reports having a data blob not added to it")
|
|
rtest.Assert(t, !idx.Has(tests[0].id, restic.TreeBlob), "Index reports having a tree blob added to it with the same id as a data blob")
|
|
}
|