Official Go implementation of the Ethereum protocol
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go-ethereum/cmd/utils/history_test.go

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// Copyright 2023 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package utils
import (
"bytes"
"crypto/sha256"
"io"
"math/big"
"os"
"path/filepath"
"strings"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/internal/era"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/trie"
"github.com/ethereum/go-ethereum/triedb"
)
var (
count uint64 = 128
step uint64 = 16
)
func TestHistoryImportAndExport(t *testing.T) {
var (
key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
address = crypto.PubkeyToAddress(key.PublicKey)
genesis = &core.Genesis{
Config: params.TestChainConfig,
Alloc: types.GenesisAlloc{address: {Balance: big.NewInt(1000000000000000000)}},
}
signer = types.LatestSigner(genesis.Config)
)
// Generate chain.
db, blocks, _ := core.GenerateChainWithGenesis(genesis, ethash.NewFaker(), int(count), func(i int, g *core.BlockGen) {
if i == 0 {
return
}
tx, err := types.SignNewTx(key, signer, &types.DynamicFeeTx{
ChainID: genesis.Config.ChainID,
Nonce: uint64(i - 1),
GasTipCap: common.Big0,
GasFeeCap: g.PrevBlock(0).BaseFee(),
Gas: 50000,
To: &common.Address{0xaa},
Value: big.NewInt(int64(i)),
Data: nil,
AccessList: nil,
})
if err != nil {
t.Fatalf("error creating tx: %v", err)
}
g.AddTx(tx)
})
// Initialize BlockChain.
chain, err := core.NewBlockChain(db, nil, genesis, nil, ethash.NewFaker(), vm.Config{}, nil)
if err != nil {
t.Fatalf("unable to initialize chain: %v", err)
}
if _, err := chain.InsertChain(blocks); err != nil {
t.Fatalf("error inserting chain: %v", err)
}
// Make temp directory for era files.
dir, err := os.MkdirTemp("", "history-export-test")
if err != nil {
t.Fatalf("error creating temp test directory: %v", err)
}
defer os.RemoveAll(dir)
// Export history to temp directory.
if err := ExportHistory(chain, dir, 0, count, step); err != nil {
t.Fatalf("error exporting history: %v", err)
}
// Read checksums.
b, err := os.ReadFile(filepath.Join(dir, "checksums.txt"))
if err != nil {
t.Fatalf("failed to read checksums: %v", err)
}
checksums := strings.Split(string(b), "\n")
// Verify each Era.
entries, _ := era.ReadDir(dir, "mainnet")
for i, filename := range entries {
func() {
f, err := os.Open(filepath.Join(dir, filename))
if err != nil {
t.Fatalf("error opening era file: %v", err)
}
var (
h = sha256.New()
buf = bytes.NewBuffer(nil)
)
if _, err := io.Copy(h, f); err != nil {
t.Fatalf("unable to recalculate checksum: %v", err)
}
if got, want := common.BytesToHash(h.Sum(buf.Bytes()[:])).Hex(), checksums[i]; got != want {
t.Fatalf("checksum %d does not match: got %s, want %s", i, got, want)
}
e, err := era.From(f)
if err != nil {
t.Fatalf("error opening era: %v", err)
}
defer e.Close()
it, err := era.NewIterator(e)
if err != nil {
t.Fatalf("error making era reader: %v", err)
}
for j := 0; it.Next(); j++ {
n := i*int(step) + j
if it.Error() != nil {
t.Fatalf("error reading block entry %d: %v", n, it.Error())
}
block, receipts, err := it.BlockAndReceipts()
if err != nil {
t.Fatalf("error reading block entry %d: %v", n, err)
}
want := chain.GetBlockByNumber(uint64(n))
if want, got := uint64(n), block.NumberU64(); want != got {
t.Fatalf("blocks out of order: want %d, got %d", want, got)
}
if want.Hash() != block.Hash() {
t.Fatalf("block hash mismatch %d: want %s, got %s", n, want.Hash().Hex(), block.Hash().Hex())
}
if got := types.DeriveSha(block.Transactions(), trie.NewStackTrie(nil)); got != want.TxHash() {
t.Fatalf("tx hash %d mismatch: want %s, got %s", n, want.TxHash(), got)
}
if got := types.CalcUncleHash(block.Uncles()); got != want.UncleHash() {
t.Fatalf("uncle hash %d mismatch: want %s, got %s", n, want.UncleHash(), got)
}
if got := types.DeriveSha(receipts, trie.NewStackTrie(nil)); got != want.ReceiptHash() {
t.Fatalf("receipt root %d mismatch: want %s, got %s", n, want.ReceiptHash(), got)
}
}
}()
}
// Now import Era.
db2, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
if err != nil {
panic(err)
}
t.Cleanup(func() {
db2.Close()
})
genesis.MustCommit(db2, triedb.NewDatabase(db, triedb.HashDefaults))
imported, err := core.NewBlockChain(db2, nil, genesis, nil, ethash.NewFaker(), vm.Config{}, nil)
if err != nil {
t.Fatalf("unable to initialize chain: %v", err)
}
if err := ImportHistory(imported, db2, dir, "mainnet"); err != nil {
t.Fatalf("failed to import chain: %v", err)
}
if have, want := imported.CurrentHeader(), chain.CurrentHeader(); have.Hash() != want.Hash() {
t.Fatalf("imported chain does not match expected, have (%d, %s) want (%d, %s)", have.Number, have.Hash(), want.Number, want.Hash())
}
}