Official Go implementation of the Ethereum protocol
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go-ethereum/swarm/storage/ldbstore_test.go

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// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package storage
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"sync"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/swarm/log"
"github.com/ethereum/go-ethereum/swarm/storage/mock/mem"
ldberrors "github.com/syndtr/goleveldb/leveldb/errors"
)
type testDbStore struct {
*LDBStore
dir string
}
func newTestDbStore(mock bool, trusted bool) (*testDbStore, func(), error) {
dir, err := ioutil.TempDir("", "bzz-storage-test")
if err != nil {
return nil, func() {}, err
}
var db *LDBStore
storeparams := NewDefaultStoreParams()
params := NewLDBStoreParams(storeparams, dir)
params.Po = testPoFunc
if mock {
globalStore := mem.NewGlobalStore()
addr := common.HexToAddress("0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed")
mockStore := globalStore.NewNodeStore(addr)
db, err = NewMockDbStore(params, mockStore)
} else {
db, err = NewLDBStore(params)
}
cleanup := func() {
if err != nil {
db.Close()
}
err = os.RemoveAll(dir)
if err != nil {
panic("db cleanup failed")
}
}
return &testDbStore{db, dir}, cleanup, err
}
func testPoFunc(k Address) (ret uint8) {
basekey := make([]byte, 32)
return uint8(Proximity(basekey[:], k[:]))
}
func (db *testDbStore) close() {
db.Close()
err := os.RemoveAll(db.dir)
if err != nil {
panic(err)
}
}
func testDbStoreRandom(n int, processors int, chunksize int64, mock bool, t *testing.T) {
db, cleanup, err := newTestDbStore(mock, true)
defer cleanup()
if err != nil {
t.Fatalf("init dbStore failed: %v", err)
}
testStoreRandom(db, processors, n, chunksize, t)
}
func testDbStoreCorrect(n int, processors int, chunksize int64, mock bool, t *testing.T) {
db, cleanup, err := newTestDbStore(mock, false)
defer cleanup()
if err != nil {
t.Fatalf("init dbStore failed: %v", err)
}
testStoreCorrect(db, processors, n, chunksize, t)
}
func TestDbStoreRandom_1(t *testing.T) {
testDbStoreRandom(1, 1, 0, false, t)
}
func TestDbStoreCorrect_1(t *testing.T) {
testDbStoreCorrect(1, 1, 4096, false, t)
}
func TestDbStoreRandom_1_5k(t *testing.T) {
testDbStoreRandom(8, 5000, 0, false, t)
}
func TestDbStoreRandom_8_5k(t *testing.T) {
testDbStoreRandom(8, 5000, 0, false, t)
}
func TestDbStoreCorrect_1_5k(t *testing.T) {
testDbStoreCorrect(1, 5000, 4096, false, t)
}
func TestDbStoreCorrect_8_5k(t *testing.T) {
testDbStoreCorrect(8, 5000, 4096, false, t)
}
func TestMockDbStoreRandom_1(t *testing.T) {
testDbStoreRandom(1, 1, 0, true, t)
}
func TestMockDbStoreCorrect_1(t *testing.T) {
testDbStoreCorrect(1, 1, 4096, true, t)
}
func TestMockDbStoreRandom_1_5k(t *testing.T) {
testDbStoreRandom(8, 5000, 0, true, t)
}
func TestMockDbStoreRandom_8_5k(t *testing.T) {
testDbStoreRandom(8, 5000, 0, true, t)
}
func TestMockDbStoreCorrect_1_5k(t *testing.T) {
testDbStoreCorrect(1, 5000, 4096, true, t)
}
func TestMockDbStoreCorrect_8_5k(t *testing.T) {
testDbStoreCorrect(8, 5000, 4096, true, t)
}
func testDbStoreNotFound(t *testing.T, mock bool) {
db, cleanup, err := newTestDbStore(mock, false)
defer cleanup()
if err != nil {
t.Fatalf("init dbStore failed: %v", err)
}
_, err = db.Get(ZeroAddr)
if err != ErrChunkNotFound {
t.Errorf("Expected ErrChunkNotFound, got %v", err)
}
}
func TestDbStoreNotFound(t *testing.T) {
testDbStoreNotFound(t, false)
}
func TestMockDbStoreNotFound(t *testing.T) {
testDbStoreNotFound(t, true)
}
func testIterator(t *testing.T, mock bool) {
var chunkcount int = 32
var i int
var poc uint
chunkkeys := NewAddressCollection(chunkcount)
chunkkeys_results := NewAddressCollection(chunkcount)
db, cleanup, err := newTestDbStore(mock, false)
defer cleanup()
if err != nil {
t.Fatalf("init dbStore failed: %v", err)
}
chunks := GenerateRandomChunks(DefaultChunkSize, chunkcount)
wg := &sync.WaitGroup{}
wg.Add(len(chunks))
for i = 0; i < len(chunks); i++ {
db.Put(chunks[i])
chunkkeys[i] = chunks[i].Addr
j := i
go func() {
defer wg.Done()
<-chunks[j].dbStoredC
}()
}
//testSplit(m, l, 128, chunkkeys, t)
for i = 0; i < len(chunkkeys); i++ {
log.Trace(fmt.Sprintf("Chunk array pos %d/%d: '%v'", i, chunkcount, chunkkeys[i]))
}
wg.Wait()
i = 0
for poc = 0; poc <= 255; poc++ {
err := db.SyncIterator(0, uint64(chunkkeys.Len()), uint8(poc), func(k Address, n uint64) bool {
log.Trace(fmt.Sprintf("Got key %v number %d poc %d", k, n, uint8(poc)))
chunkkeys_results[n-1] = k
i++
return true
})
if err != nil {
t.Fatalf("Iterator call failed: %v", err)
}
}
for i = 0; i < chunkcount; i++ {
if !bytes.Equal(chunkkeys[i], chunkkeys_results[i]) {
t.Fatalf("Chunk put #%d key '%v' does not match iterator's key '%v'", i, chunkkeys[i], chunkkeys_results[i])
}
}
}
func TestIterator(t *testing.T) {
testIterator(t, false)
}
func TestMockIterator(t *testing.T) {
testIterator(t, true)
}
func benchmarkDbStorePut(n int, processors int, chunksize int64, mock bool, b *testing.B) {
db, cleanup, err := newTestDbStore(mock, true)
defer cleanup()
if err != nil {
b.Fatalf("init dbStore failed: %v", err)
}
benchmarkStorePut(db, processors, n, chunksize, b)
}
func benchmarkDbStoreGet(n int, processors int, chunksize int64, mock bool, b *testing.B) {
db, cleanup, err := newTestDbStore(mock, true)
defer cleanup()
if err != nil {
b.Fatalf("init dbStore failed: %v", err)
}
benchmarkStoreGet(db, processors, n, chunksize, b)
}
func BenchmarkDbStorePut_1_500(b *testing.B) {
benchmarkDbStorePut(500, 1, 4096, false, b)
}
func BenchmarkDbStorePut_8_500(b *testing.B) {
benchmarkDbStorePut(500, 8, 4096, false, b)
}
func BenchmarkDbStoreGet_1_500(b *testing.B) {
benchmarkDbStoreGet(500, 1, 4096, false, b)
}
func BenchmarkDbStoreGet_8_500(b *testing.B) {
benchmarkDbStoreGet(500, 8, 4096, false, b)
}
func BenchmarkMockDbStorePut_1_500(b *testing.B) {
benchmarkDbStorePut(500, 1, 4096, true, b)
}
func BenchmarkMockDbStorePut_8_500(b *testing.B) {
benchmarkDbStorePut(500, 8, 4096, true, b)
}
func BenchmarkMockDbStoreGet_1_500(b *testing.B) {
benchmarkDbStoreGet(500, 1, 4096, true, b)
}
func BenchmarkMockDbStoreGet_8_500(b *testing.B) {
benchmarkDbStoreGet(500, 8, 4096, true, b)
}
// TestLDBStoreWithoutCollectGarbage tests that we can put a number of random chunks in the LevelDB store, and
// retrieve them, provided we don't hit the garbage collection
func TestLDBStoreWithoutCollectGarbage(t *testing.T) {
capacity := 50
n := 10
ldb, cleanup := newLDBStore(t)
ldb.setCapacity(uint64(capacity))
defer cleanup()
chunks := []*Chunk{}
for i := 0; i < n; i++ {
c := GenerateRandomChunk(DefaultChunkSize)
chunks = append(chunks, c)
log.Trace("generate random chunk", "idx", i, "chunk", c)
}
for i := 0; i < n; i++ {
go ldb.Put(chunks[i])
}
// wait for all chunks to be stored
for i := 0; i < n; i++ {
<-chunks[i].dbStoredC
}
log.Info("ldbstore", "entrycnt", ldb.entryCnt, "accesscnt", ldb.accessCnt)
for i := 0; i < n; i++ {
ret, err := ldb.Get(chunks[i].Addr)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(ret.SData, chunks[i].SData) {
t.Fatal("expected to get the same data back, but got smth else")
}
log.Info("got back chunk", "chunk", ret)
}
if ldb.entryCnt != uint64(n+1) {
t.Fatalf("expected entryCnt to be equal to %v, but got %v", n+1, ldb.entryCnt)
}
if ldb.accessCnt != uint64(2*n+1) {
t.Fatalf("expected accessCnt to be equal to %v, but got %v", n+1, ldb.accessCnt)
}
}
// TestLDBStoreCollectGarbage tests that we can put more chunks than LevelDB's capacity, and
// retrieve only some of them, because garbage collection must have cleared some of them
func TestLDBStoreCollectGarbage(t *testing.T) {
capacity := 500
n := 2000
ldb, cleanup := newLDBStore(t)
ldb.setCapacity(uint64(capacity))
defer cleanup()
chunks := []*Chunk{}
for i := 0; i < n; i++ {
c := GenerateRandomChunk(DefaultChunkSize)
chunks = append(chunks, c)
log.Trace("generate random chunk", "idx", i, "chunk", c)
}
for i := 0; i < n; i++ {
ldb.Put(chunks[i])
}
// wait for all chunks to be stored
for i := 0; i < n; i++ {
<-chunks[i].dbStoredC
}
log.Info("ldbstore", "entrycnt", ldb.entryCnt, "accesscnt", ldb.accessCnt)
// wait for garbage collection to kick in on the responsible actor
time.Sleep(5 * time.Second)
var missing int
for i := 0; i < n; i++ {
ret, err := ldb.Get(chunks[i].Addr)
if err == ErrChunkNotFound || err == ldberrors.ErrNotFound {
missing++
continue
}
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(ret.SData, chunks[i].SData) {
t.Fatal("expected to get the same data back, but got smth else")
}
log.Trace("got back chunk", "chunk", ret)
}
if missing < n-capacity {
t.Fatalf("gc failure: expected to miss %v chunks, but only %v are actually missing", n-capacity, missing)
}
log.Info("ldbstore", "total", n, "missing", missing, "entrycnt", ldb.entryCnt, "accesscnt", ldb.accessCnt)
}
// TestLDBStoreAddRemove tests that we can put and then delete a given chunk
func TestLDBStoreAddRemove(t *testing.T) {
ldb, cleanup := newLDBStore(t)
ldb.setCapacity(200)
defer cleanup()
n := 100
chunks := []*Chunk{}
for i := 0; i < n; i++ {
c := GenerateRandomChunk(DefaultChunkSize)
chunks = append(chunks, c)
log.Trace("generate random chunk", "idx", i, "chunk", c)
}
for i := 0; i < n; i++ {
go ldb.Put(chunks[i])
}
// wait for all chunks to be stored before continuing
for i := 0; i < n; i++ {
<-chunks[i].dbStoredC
}
for i := 0; i < n; i++ {
// delete all even index chunks
if i%2 == 0 {
key := chunks[i].Addr
ikey := getIndexKey(key)
var indx dpaDBIndex
ldb.tryAccessIdx(ikey, &indx)
ldb.delete(indx.Idx, ikey, ldb.po(key))
}
}
log.Info("ldbstore", "entrycnt", ldb.entryCnt, "accesscnt", ldb.accessCnt)
for i := 0; i < n; i++ {
ret, err := ldb.Get(chunks[i].Addr)
if i%2 == 0 {
// expect even chunks to be missing
if err == nil || ret != nil {
t.Fatal("expected chunk to be missing, but got no error")
}
} else {
// expect odd chunks to be retrieved successfully
if err != nil {
t.Fatalf("expected no error, but got %s", err)
}
if !bytes.Equal(ret.SData, chunks[i].SData) {
t.Fatal("expected to get the same data back, but got smth else")
}
}
}
}
// TestLDBStoreRemoveThenCollectGarbage tests that we can delete chunks and that we can trigger garbage collection
func TestLDBStoreRemoveThenCollectGarbage(t *testing.T) {
capacity := 10
ldb, cleanup := newLDBStore(t)
ldb.setCapacity(uint64(capacity))
n := 7
chunks := []*Chunk{}
for i := 0; i < capacity; i++ {
c := GenerateRandomChunk(DefaultChunkSize)
chunks = append(chunks, c)
log.Trace("generate random chunk", "idx", i, "chunk", c)
}
for i := 0; i < n; i++ {
ldb.Put(chunks[i])
}
// wait for all chunks to be stored before continuing
for i := 0; i < n; i++ {
<-chunks[i].dbStoredC
}
// delete all chunks
for i := 0; i < n; i++ {
key := chunks[i].Addr
ikey := getIndexKey(key)
var indx dpaDBIndex
ldb.tryAccessIdx(ikey, &indx)
ldb.delete(indx.Idx, ikey, ldb.po(key))
}
log.Info("ldbstore", "entrycnt", ldb.entryCnt, "accesscnt", ldb.accessCnt)
cleanup()
ldb, cleanup = newLDBStore(t)
ldb.setCapacity(uint64(capacity))
n = 10
for i := 0; i < n; i++ {
ldb.Put(chunks[i])
}
// wait for all chunks to be stored before continuing
for i := 0; i < n; i++ {
<-chunks[i].dbStoredC
}
// expect for first chunk to be missing, because it has the smallest access value
idx := 0
ret, err := ldb.Get(chunks[idx].Addr)
if err == nil || ret != nil {
t.Fatal("expected first chunk to be missing, but got no error")
}
// expect for last chunk to be present, as it has the largest access value
idx = 9
ret, err = ldb.Get(chunks[idx].Addr)
if err != nil {
t.Fatalf("expected no error, but got %s", err)
}
if !bytes.Equal(ret.SData, chunks[idx].SData) {
t.Fatal("expected to get the same data back, but got smth else")
}
}