260 lines
8.8 KiB
Go
260 lines
8.8 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"fmt"
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"math/big"
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"reflect"
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"testing"
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"github.com/davecgh/go-spew/spew"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/beacon"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/triedb"
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)
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func TestGeneratePOSChain(t *testing.T) {
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var (
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keyHex = "9c647b8b7c4e7c3490668fb6c11473619db80c93704c70893d3813af4090c39c"
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key, _ = crypto.HexToECDSA(keyHex)
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address = crypto.PubkeyToAddress(key.PublicKey) // 658bdf435d810c91414ec09147daa6db62406379
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aa = common.Address{0xaa}
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bb = common.Address{0xbb}
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funds = big.NewInt(0).Mul(big.NewInt(1337), big.NewInt(params.Ether))
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config = *params.AllEthashProtocolChanges
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gspec = &Genesis{
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Config: &config,
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Alloc: types.GenesisAlloc{
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address: {Balance: funds},
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params.BeaconRootsAddress: {Code: params.BeaconRootsCode},
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},
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BaseFee: big.NewInt(params.InitialBaseFee),
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Difficulty: common.Big1,
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GasLimit: 5_000_000,
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}
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gendb = rawdb.NewMemoryDatabase()
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db = rawdb.NewMemoryDatabase()
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)
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config.TerminalTotalDifficultyPassed = true
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config.TerminalTotalDifficulty = common.Big0
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config.ShanghaiTime = u64(0)
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config.CancunTime = u64(0)
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// init 0xaa with some storage elements
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storage := make(map[common.Hash]common.Hash)
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storage[common.Hash{0x00}] = common.Hash{0x00}
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storage[common.Hash{0x01}] = common.Hash{0x01}
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storage[common.Hash{0x02}] = common.Hash{0x02}
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storage[common.Hash{0x03}] = common.HexToHash("0303")
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gspec.Alloc[aa] = types.Account{
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Balance: common.Big1,
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Nonce: 1,
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Storage: storage,
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Code: common.Hex2Bytes("6042"),
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}
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gspec.Alloc[bb] = types.Account{
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Balance: common.Big2,
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Nonce: 1,
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Storage: storage,
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Code: common.Hex2Bytes("600154600354"),
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}
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genesis := gspec.MustCommit(gendb, triedb.NewDatabase(gendb, triedb.HashDefaults))
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genchain, genreceipts := GenerateChain(gspec.Config, genesis, beacon.NewFaker(), gendb, 4, func(i int, gen *BlockGen) {
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gen.SetParentBeaconRoot(common.Hash{byte(i + 1)})
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// Add value transfer tx.
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tx := types.MustSignNewTx(key, gen.Signer(), &types.LegacyTx{
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Nonce: gen.TxNonce(address),
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To: &address,
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Value: big.NewInt(1000),
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Gas: params.TxGas,
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GasPrice: new(big.Int).Add(gen.BaseFee(), common.Big1),
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})
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gen.AddTx(tx)
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// Add withdrawals.
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if i == 1 {
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gen.AddWithdrawal(&types.Withdrawal{
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Validator: 42,
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Address: common.Address{0xee},
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Amount: 1337,
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})
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gen.AddWithdrawal(&types.Withdrawal{
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Validator: 13,
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Address: common.Address{0xee},
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Amount: 1,
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})
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}
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if i == 3 {
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gen.AddWithdrawal(&types.Withdrawal{
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Validator: 42,
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Address: common.Address{0xee},
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Amount: 1337,
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})
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gen.AddWithdrawal(&types.Withdrawal{
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Validator: 13,
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Address: common.Address{0xee},
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Amount: 1,
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})
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}
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})
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// Import the chain. This runs all block validation rules.
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blockchain, _ := NewBlockChain(db, nil, gspec, nil, beacon.NewFaker(), vm.Config{}, nil, nil)
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defer blockchain.Stop()
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if i, err := blockchain.InsertChain(genchain); err != nil {
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t.Fatalf("insert error (block %d): %v\n", genchain[i].NumberU64(), err)
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}
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// enforce that withdrawal indexes are monotonically increasing from 0
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var (
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withdrawalIndex uint64
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)
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for i := range genchain {
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blocknum := genchain[i].NumberU64()
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block := blockchain.GetBlockByNumber(blocknum)
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if block == nil {
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t.Fatalf("block %d not found", blocknum)
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}
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// Verify receipts.
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genBlockReceipts := genreceipts[i]
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for _, r := range genBlockReceipts {
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if r.BlockNumber.Cmp(block.Number()) != 0 {
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t.Errorf("receipt has wrong block number %d, want %d", r.BlockNumber, block.Number())
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}
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if r.BlockHash != block.Hash() {
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t.Errorf("receipt has wrong block hash %v, want %v", r.BlockHash, block.Hash())
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}
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// patch up empty logs list to make DeepEqual below work
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if r.Logs == nil {
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r.Logs = []*types.Log{}
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}
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}
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blockchainReceipts := blockchain.GetReceiptsByHash(block.Hash())
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if !reflect.DeepEqual(genBlockReceipts, blockchainReceipts) {
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t.Fatalf("receipts mismatch\ngenerated: %s\nblockchain: %s", spew.Sdump(genBlockReceipts), spew.Sdump(blockchainReceipts))
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}
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// Verify withdrawals.
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if len(block.Withdrawals()) == 0 {
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continue
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}
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for j := 0; j < len(block.Withdrawals()); j++ {
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if block.Withdrawals()[j].Index != withdrawalIndex {
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t.Fatalf("withdrawal index %d does not equal expected index %d", block.Withdrawals()[j].Index, withdrawalIndex)
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}
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withdrawalIndex += 1
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}
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// Verify parent beacon root.
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want := common.Hash{byte(blocknum)}
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if got := block.BeaconRoot(); *got != want {
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t.Fatalf("block %d, wrong parent beacon root: got %s, want %s", i, got, want)
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}
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state, _ := blockchain.State()
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idx := block.Time()%8191 + 8191
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got := state.GetState(params.BeaconRootsAddress, common.BigToHash(new(big.Int).SetUint64(idx)))
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if got != want {
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t.Fatalf("block %d, wrong parent beacon root in state: got %s, want %s", i, got, want)
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}
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}
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}
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func ExampleGenerateChain() {
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var (
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key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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key2, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
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key3, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
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addr1 = crypto.PubkeyToAddress(key1.PublicKey)
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addr2 = crypto.PubkeyToAddress(key2.PublicKey)
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addr3 = crypto.PubkeyToAddress(key3.PublicKey)
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db = rawdb.NewMemoryDatabase()
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genDb = rawdb.NewMemoryDatabase()
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)
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// Ensure that key1 has some funds in the genesis block.
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gspec := &Genesis{
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Config: ¶ms.ChainConfig{HomesteadBlock: new(big.Int)},
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Alloc: types.GenesisAlloc{addr1: {Balance: big.NewInt(1000000)}},
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}
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genesis := gspec.MustCommit(genDb, triedb.NewDatabase(genDb, triedb.HashDefaults))
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// This call generates a chain of 5 blocks. The function runs for
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// each block and adds different features to gen based on the
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// block index.
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signer := types.HomesteadSigner{}
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chain, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), genDb, 5, func(i int, gen *BlockGen) {
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switch i {
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case 0:
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// In block 1, addr1 sends addr2 some ether.
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tx, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(10000), params.TxGas, nil, nil), signer, key1)
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gen.AddTx(tx)
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case 1:
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// In block 2, addr1 sends some more ether to addr2.
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// addr2 passes it on to addr3.
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tx1, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(1000), params.TxGas, nil, nil), signer, key1)
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tx2, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key2)
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gen.AddTx(tx1)
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gen.AddTx(tx2)
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case 2:
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// Block 3 is empty but was mined by addr3.
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gen.SetCoinbase(addr3)
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gen.SetExtra([]byte("yeehaw"))
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case 3:
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// Block 4 includes blocks 2 and 3 as uncle headers (with modified extra data).
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b2 := gen.PrevBlock(1).Header()
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b2.Extra = []byte("foo")
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gen.AddUncle(b2)
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b3 := gen.PrevBlock(2).Header()
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b3.Extra = []byte("foo")
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gen.AddUncle(b3)
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}
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})
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// Import the chain. This runs all block validation rules.
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blockchain, _ := NewBlockChain(db, DefaultCacheConfigWithScheme(rawdb.HashScheme), gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
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defer blockchain.Stop()
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if i, err := blockchain.InsertChain(chain); err != nil {
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fmt.Printf("insert error (block %d): %v\n", chain[i].NumberU64(), err)
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return
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}
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state, _ := blockchain.State()
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fmt.Printf("last block: #%d\n", blockchain.CurrentBlock().Number)
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fmt.Println("balance of addr1:", state.GetBalance(addr1))
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fmt.Println("balance of addr2:", state.GetBalance(addr2))
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fmt.Println("balance of addr3:", state.GetBalance(addr3))
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// Output:
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// last block: #5
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// balance of addr1: 989000
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// balance of addr2: 10000
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// balance of addr3: 19687500000000001000
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}
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