mirror of https://github.com/status-im/op-geth.git
80 lines
2.7 KiB
Go
80 lines
2.7 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++ {
|
|
rawdb.WriteAccountSnapshot(db, randomHash(), randomHash().Bytes())
|
|
}
|
|
// Add some random non-snapshot data too to make wiping harder
|
|
for i := 0; i < 500; i++ {
|
|
// Generate keys with wrong length for a state snapshot item
|
|
keysuffix := make([]byte, 31)
|
|
rand.Read(keysuffix)
|
|
db.Put(append(rawdb.SnapshotAccountPrefix, keysuffix...), randomHash().Bytes())
|
|
keysuffix = make([]byte, 33)
|
|
rand.Read(keysuffix)
|
|
db.Put(append(rawdb.SnapshotAccountPrefix, keysuffix...), randomHash().Bytes())
|
|
}
|
|
count := func() (items int) {
|
|
it := db.NewIterator(rawdb.SnapshotAccountPrefix, nil)
|
|
defer it.Release()
|
|
for it.Next() {
|
|
if len(it.Key()) == len(rawdb.SnapshotAccountPrefix)+common.HashLength {
|
|
items++
|
|
}
|
|
}
|
|
return items
|
|
}
|
|
// Sanity check that all the keys are present
|
|
if items := count(); items != 128 {
|
|
t.Fatalf("snapshot size mismatch: have %d, want %d", items, 128)
|
|
}
|
|
// Wipe the accounts
|
|
if err := wipeKeyRange(db, "accounts", rawdb.SnapshotAccountPrefix, nil, nil,
|
|
len(rawdb.SnapshotAccountPrefix)+common.HashLength, snapWipedAccountMeter, true); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
// Iterate over the database end ensure no snapshot information remains
|
|
if items := count(); items != 0 {
|
|
t.Fatalf("snapshot size mismatch: have %d, want %d", items, 0)
|
|
}
|
|
// 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 != 1000 {
|
|
t.Fatalf("misc item count mismatch: have %d, want %d", items, 1000)
|
|
}
|
|
}
|