mirror of
https://github.com/ethereum/go-ethereum.git
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284 lines
8.4 KiB
Go
284 lines
8.4 KiB
Go
// Copyright 2020 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 miner implements Ethereum block creation and mining.
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package miner
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import (
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"math/big"
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"sync"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/clique"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/txpool"
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"github.com/ethereum/go-ethereum/core/txpool/legacypool"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/trie"
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"github.com/ethereum/go-ethereum/triedb"
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"github.com/holiman/uint256"
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)
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type mockBackend struct {
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bc *core.BlockChain
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txPool *txpool.TxPool
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}
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func NewMockBackend(bc *core.BlockChain, txPool *txpool.TxPool) *mockBackend {
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return &mockBackend{
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bc: bc,
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txPool: txPool,
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}
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}
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func (m *mockBackend) BlockChain() *core.BlockChain {
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return m.bc
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}
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func (m *mockBackend) TxPool() *txpool.TxPool {
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return m.txPool
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}
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type testBlockChain struct {
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root common.Hash
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config *params.ChainConfig
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statedb *state.StateDB
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gasLimit uint64
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chainHeadFeed *event.Feed
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}
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func (bc *testBlockChain) Config() *params.ChainConfig {
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return bc.config
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}
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func (bc *testBlockChain) CurrentBlock() *types.Header {
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return &types.Header{
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Number: new(big.Int),
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GasLimit: bc.gasLimit,
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}
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}
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func (bc *testBlockChain) GetBlock(hash common.Hash, number uint64) *types.Block {
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return types.NewBlock(bc.CurrentBlock(), nil, nil, trie.NewStackTrie(nil))
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}
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func (bc *testBlockChain) StateAt(common.Hash) (*state.StateDB, error) {
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return bc.statedb, nil
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}
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func (bc *testBlockChain) HasState(root common.Hash) bool {
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return bc.root == root
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}
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func (bc *testBlockChain) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
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return bc.chainHeadFeed.Subscribe(ch)
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}
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func TestBuildPendingBlocks(t *testing.T) {
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miner := createMiner(t)
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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defer wg.Done()
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block, _, _ := miner.Pending()
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if block == nil {
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t.Error("Pending failed")
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}
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}()
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wg.Wait()
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}
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func minerTestGenesisBlock(period uint64, gasLimit uint64, faucet common.Address) *core.Genesis {
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config := *params.AllCliqueProtocolChanges
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config.Clique = ¶ms.CliqueConfig{
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Period: period,
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Epoch: config.Clique.Epoch,
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}
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// Assemble and return the genesis with the precompiles and faucet pre-funded
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return &core.Genesis{
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Config: &config,
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ExtraData: append(append(make([]byte, 32), faucet[:]...), make([]byte, crypto.SignatureLength)...),
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GasLimit: gasLimit,
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BaseFee: big.NewInt(params.InitialBaseFee),
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Difficulty: big.NewInt(1),
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Alloc: map[common.Address]types.Account{
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common.BytesToAddress([]byte{1}): {Balance: big.NewInt(1)}, // ECRecover
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common.BytesToAddress([]byte{2}): {Balance: big.NewInt(1)}, // SHA256
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common.BytesToAddress([]byte{3}): {Balance: big.NewInt(1)}, // RIPEMD
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common.BytesToAddress([]byte{4}): {Balance: big.NewInt(1)}, // Identity
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common.BytesToAddress([]byte{5}): {Balance: big.NewInt(1)}, // ModExp
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common.BytesToAddress([]byte{6}): {Balance: big.NewInt(1)}, // ECAdd
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common.BytesToAddress([]byte{7}): {Balance: big.NewInt(1)}, // ECScalarMul
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common.BytesToAddress([]byte{8}): {Balance: big.NewInt(1)}, // ECPairing
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common.BytesToAddress([]byte{9}): {Balance: big.NewInt(1)}, // BLAKE2b
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faucet: {Balance: new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(9))},
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},
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}
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}
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func createMiner(t *testing.T) *Miner {
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// Create Ethash config
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config := Config{
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PendingFeeRecipient: common.HexToAddress("123456789"),
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}
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// Create chainConfig
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chainDB := rawdb.NewMemoryDatabase()
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triedb := triedb.NewDatabase(chainDB, nil)
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genesis := minerTestGenesisBlock(15, 11_500_000, common.HexToAddress("12345"))
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chainConfig, _, _, err := core.SetupGenesisBlock(chainDB, triedb, genesis)
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if err != nil {
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t.Fatalf("can't create new chain config: %v", err)
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}
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// Create consensus engine
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engine := clique.New(chainConfig.Clique, chainDB)
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// Create Ethereum backend
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bc, err := core.NewBlockChain(chainDB, genesis, engine, nil)
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if err != nil {
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t.Fatalf("can't create new chain %v", err)
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}
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statedb, _ := state.New(bc.Genesis().Root(), bc.StateCache())
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blockchain := &testBlockChain{bc.Genesis().Root(), chainConfig, statedb, 10000000, new(event.Feed)}
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pool := legacypool.New(testTxPoolConfig, blockchain)
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txpool, _ := txpool.New(testTxPoolConfig.PriceLimit, blockchain, []txpool.SubPool{pool})
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// Create Miner
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backend := NewMockBackend(bc, txpool)
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miner := New(backend, config, engine)
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return miner
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}
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// MockTxPool satisfies the miner.TxPool interface
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type MockTxPool struct {
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txs []*types.Transaction
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}
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func NewMockTxPool(txs []*types.Transaction) *MockTxPool {
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return &MockTxPool{txs: txs}
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}
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// Pending returns our specific list of transactions grouped by sender
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func (m *MockTxPool) Pending(filter txpool.PendingFilter) map[common.Address][]*txpool.LazyTransaction {
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result := make(map[common.Address][]*txpool.LazyTransaction)
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for _, tx := range m.txs {
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lazyTx := &txpool.LazyTransaction{
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Hash: tx.Hash(),
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Tx: tx,
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Time: tx.Time(),
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GasFeeCap: uint256.MustFromBig(tx.GasFeeCap()),
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GasTipCap: uint256.MustFromBig(tx.GasTipCap()),
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Gas: tx.Gas(),
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}
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signer := types.LatestSignerForChainID(tx.ChainId())
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from, _ := types.Sender(signer, tx)
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result[from] = append(result[from], lazyTx)
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}
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return result
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}
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func TestMinerBlockProduction(t *testing.T) {
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var (
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key, _ = crypto.HexToECDSA("b81c71a67e1177ad4e501695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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addr = crypto.PubkeyToAddress(key.PublicKey)
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chainDB = rawdb.NewMemoryDatabase()
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gspec = &core.Genesis{
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Config: params.TestChainConfig,
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Alloc: types.GenesisAlloc{
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addr: {Balance: big.NewInt(1000000000000000000)},
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},
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}
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)
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blockchain, err := core.NewBlockChain(chainDB, gspec, ethash.NewFaker(), core.DefaultConfig())
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if err != nil {
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t.Fatalf("Failed to create blockchain: %v", err)
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}
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defer blockchain.Stop()
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signer := types.LatestSigner(params.TestChainConfig)
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txs := make([]*types.Transaction, 3)
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for i := 0; i < 3; i++ {
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tx, _ := types.SignTx(types.NewTransaction(
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uint64(i),
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common.HexToAddress("0xDeadBeef"),
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big.NewInt(1000),
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21000,
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big.NewInt(1000000000),
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nil,
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), signer, key)
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txs[i] = tx
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}
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// Setting up the mock Tx pool
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mockPool := NewMockTxPool(txs)
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backend := &testWorkerBackend{
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chain: blockchain,
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}
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config := Config{
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Etherbase: common.Address{0x1},
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Recommit: 100 * time.Millisecond,
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GasCeil: gspec.GasLimit,
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}
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miner := New(backend, config, blockchain.Engine())
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miner.txpool = mockPool
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parent := blockchain.CurrentBlock()
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args := &BuildPayloadArgs{
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Parent: parent.Hash(),
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Timestamp: uint64(time.Now().Unix()),
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FeeRecipient: common.Address{0x1},
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Random: common.Hash{},
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Withdrawals: []*types.Withdrawal{},
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}
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payload, err := miner.BuildPayload(args, false)
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if err != nil {
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t.Fatalf("Failed to start build payload: %v", err)
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}
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envelope := payload.ResolveFull()
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if envelope == nil {
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t.Fatalf("ResolveFull returned nil")
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}
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block := payload.full
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if block == nil {
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t.Fatalf("Miner failed to produce a full block")
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}
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if len(block.Transactions()) != 3 {
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t.Errorf("Expected 3 transactions, got %d", len(block.Transactions()))
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}
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for i, tx := range block.Transactions() {
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if tx.Hash() != txs[i].Hash() {
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t.Errorf("Transaction %d mismatch. Expected %x, got %x", i, txs[i].Hash(), tx.Hash())
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}
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}
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}
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