121 lines
4.1 KiB
Go
121 lines
4.1 KiB
Go
// Copyright 2021 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 state
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
)
|
|
|
|
func filledStateDB() *StateDB {
|
|
state, _ := New(common.Hash{}, NewDatabase(rawdb.NewMemoryDatabase()), nil)
|
|
|
|
// Create an account and check if the retrieved balance is correct
|
|
addr := common.HexToAddress("0xaffeaffeaffeaffeaffeaffeaffeaffeaffeaffe")
|
|
skey := common.HexToHash("aaa")
|
|
sval := common.HexToHash("bbb")
|
|
|
|
state.SetBalance(addr, big.NewInt(42)) // Change the account trie
|
|
state.SetCode(addr, []byte("hello")) // Change an external metadata
|
|
state.SetState(addr, skey, sval) // Change the storage trie
|
|
for i := 0; i < 100; i++ {
|
|
sk := common.BigToHash(big.NewInt(int64(i)))
|
|
state.SetState(addr, sk, sk) // Change the storage trie
|
|
}
|
|
return state
|
|
}
|
|
|
|
func prefetchGuaranteed(prefetcher *triePrefetcher, root common.Hash, keys [][]byte, accountHash common.Hash) {
|
|
prefetcher.prefetch(root, keys, accountHash)
|
|
for {
|
|
if len(prefetcher.prefetchChan) == 0 {
|
|
return
|
|
}
|
|
time.Sleep(1 * time.Millisecond)
|
|
}
|
|
}
|
|
|
|
func TestCopyAndClose(t *testing.T) {
|
|
db := filledStateDB()
|
|
prefetcher := newTriePrefetcher(db.db, db.originalRoot, common.Hash{}, "")
|
|
skey := common.HexToHash("aaa")
|
|
prefetchGuaranteed(prefetcher, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
prefetchGuaranteed(prefetcher, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
time.Sleep(1 * time.Second)
|
|
a := prefetcher.trie(db.originalRoot)
|
|
prefetchGuaranteed(prefetcher, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
b := prefetcher.trie(db.originalRoot)
|
|
cpy := prefetcher.copy()
|
|
prefetchGuaranteed(cpy, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
prefetchGuaranteed(cpy, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
c := cpy.trie(db.originalRoot)
|
|
prefetcher.close()
|
|
cpy2 := cpy.copy()
|
|
prefetchGuaranteed(cpy2, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
d := cpy2.trie(db.originalRoot)
|
|
cpy.close()
|
|
cpy2.close()
|
|
if a.Hash() != b.Hash() || a.Hash() != c.Hash() || a.Hash() != d.Hash() {
|
|
t.Fatalf("Invalid trie, hashes should be equal: %v %v %v %v", a.Hash(), b.Hash(), c.Hash(), d.Hash())
|
|
}
|
|
}
|
|
|
|
func TestUseAfterClose(t *testing.T) {
|
|
db := filledStateDB()
|
|
prefetcher := newTriePrefetcher(db.db, db.originalRoot, common.Hash{}, "")
|
|
skey := common.HexToHash("aaa")
|
|
prefetchGuaranteed(prefetcher, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
a := prefetcher.trie(db.originalRoot)
|
|
prefetcher.close()
|
|
b := prefetcher.trie(db.originalRoot)
|
|
if a == nil {
|
|
t.Fatal("Prefetching before close should not return nil")
|
|
}
|
|
if b != nil {
|
|
t.Fatal("Trie after close should return nil")
|
|
}
|
|
}
|
|
|
|
func TestCopyClose(t *testing.T) {
|
|
db := filledStateDB()
|
|
prefetcher := newTriePrefetcher(db.db, db.originalRoot, common.Hash{}, "")
|
|
skey := common.HexToHash("aaa")
|
|
prefetchGuaranteed(prefetcher, db.originalRoot, [][]byte{skey.Bytes()}, common.Hash{})
|
|
cpy := prefetcher.copy()
|
|
a := prefetcher.trie(db.originalRoot)
|
|
b := cpy.trie(db.originalRoot)
|
|
prefetcher.close()
|
|
c := prefetcher.trie(db.originalRoot)
|
|
d := cpy.trie(db.originalRoot)
|
|
if a == nil {
|
|
t.Fatal("Prefetching before close should not return nil")
|
|
}
|
|
if b == nil {
|
|
t.Fatal("Copy trie should return nil")
|
|
}
|
|
if c != nil {
|
|
t.Fatal("Trie after close should return nil")
|
|
}
|
|
if d == nil {
|
|
t.Fatal("Copy trie should not return nil")
|
|
}
|
|
}
|