6402c42b67
* core/state/snapshot: start fixing disk iterator seek * ethdb, rawdb, leveldb, memorydb: implement iterators with prefix and start * les, core/state/snapshot: iterator fixes * all: remove two iterator methods * all: rename Iteratee.NewIteratorWith -> NewIterator * ethdb: fix review concerns
125 lines
3.8 KiB
Go
125 lines
3.8 KiB
Go
// Copyright 2019 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 snapshot
|
|
|
|
import (
|
|
"math/rand"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/ethdb/memorydb"
|
|
)
|
|
|
|
// Tests that given a database with random data content, all parts of a snapshot
|
|
// can be crrectly wiped without touching anything else.
|
|
func TestWipe(t *testing.T) {
|
|
// Create a database with some random snapshot data
|
|
db := memorydb.New()
|
|
|
|
for i := 0; i < 128; i++ {
|
|
account := randomHash()
|
|
rawdb.WriteAccountSnapshot(db, account, randomHash().Bytes())
|
|
for j := 0; j < 1024; j++ {
|
|
rawdb.WriteStorageSnapshot(db, account, randomHash(), randomHash().Bytes())
|
|
}
|
|
}
|
|
rawdb.WriteSnapshotRoot(db, randomHash())
|
|
|
|
// Add some random non-snapshot data too to make wiping harder
|
|
for i := 0; i < 65536; i++ {
|
|
// Generate a key that's the wrong length for a state snapshot item
|
|
var keysize int
|
|
for keysize == 0 || keysize == 32 || keysize == 64 {
|
|
keysize = 8 + rand.Intn(64) // +8 to ensure we will "never" randomize duplicates
|
|
}
|
|
// Randomize the suffix, dedup and inject it under the snapshot namespace
|
|
keysuffix := make([]byte, keysize)
|
|
rand.Read(keysuffix)
|
|
|
|
if rand.Int31n(2) == 0 {
|
|
db.Put(append(rawdb.SnapshotAccountPrefix, keysuffix...), randomHash().Bytes())
|
|
} else {
|
|
db.Put(append(rawdb.SnapshotStoragePrefix, keysuffix...), randomHash().Bytes())
|
|
}
|
|
}
|
|
// Sanity check that all the keys are present
|
|
var items int
|
|
|
|
it := db.NewIterator(rawdb.SnapshotAccountPrefix, nil)
|
|
defer it.Release()
|
|
|
|
for it.Next() {
|
|
key := it.Key()
|
|
if len(key) == len(rawdb.SnapshotAccountPrefix)+common.HashLength {
|
|
items++
|
|
}
|
|
}
|
|
it = db.NewIterator(rawdb.SnapshotStoragePrefix, nil)
|
|
defer it.Release()
|
|
|
|
for it.Next() {
|
|
key := it.Key()
|
|
if len(key) == len(rawdb.SnapshotStoragePrefix)+2*common.HashLength {
|
|
items++
|
|
}
|
|
}
|
|
if items != 128+128*1024 {
|
|
t.Fatalf("snapshot size mismatch: have %d, want %d", items, 128+128*1024)
|
|
}
|
|
if hash := rawdb.ReadSnapshotRoot(db); hash == (common.Hash{}) {
|
|
t.Errorf("snapshot block marker mismatch: have %#x, want <not-nil>", hash)
|
|
}
|
|
// Wipe all snapshot entries from the database
|
|
<-wipeSnapshot(db, true)
|
|
|
|
// Iterate over the database end ensure no snapshot information remains
|
|
it = db.NewIterator(rawdb.SnapshotAccountPrefix, nil)
|
|
defer it.Release()
|
|
|
|
for it.Next() {
|
|
key := it.Key()
|
|
if len(key) == len(rawdb.SnapshotAccountPrefix)+common.HashLength {
|
|
t.Errorf("snapshot entry remained after wipe: %x", key)
|
|
}
|
|
}
|
|
it = db.NewIterator(rawdb.SnapshotStoragePrefix, nil)
|
|
defer it.Release()
|
|
|
|
for it.Next() {
|
|
key := it.Key()
|
|
if len(key) == len(rawdb.SnapshotStoragePrefix)+2*common.HashLength {
|
|
t.Errorf("snapshot entry remained after wipe: %x", key)
|
|
}
|
|
}
|
|
if hash := rawdb.ReadSnapshotRoot(db); hash != (common.Hash{}) {
|
|
t.Errorf("snapshot block marker remained after wipe: %#x", hash)
|
|
}
|
|
// Iterate over the database and ensure miscellaneous items are present
|
|
items = 0
|
|
|
|
it = db.NewIterator(nil, nil)
|
|
defer it.Release()
|
|
|
|
for it.Next() {
|
|
items++
|
|
}
|
|
if items != 65536 {
|
|
t.Fatalf("misc item count mismatch: have %d, want %d", items, 65536)
|
|
}
|
|
}
|