go-ethereum/miner/miner_test.go
rjl493456442 623b17ba20
core/state: state reader abstraction (#29761)
This pull request introduces a state.Reader interface for state
accessing.

The interface could be implemented in various ways. It can be pure trie
only reader, or the combination of trie and state snapshot. What's more,
this interface allows us to have more flexibility in the future, e.g.
the
archive reader (for accessing archive state).

Additionally, this pull request removes the following metrics

- `chain/snapshot/account/reads`
- `chain/snapshot/storage/reads`
2024-09-05 13:10:47 +03:00

170 lines
5.4 KiB
Go

// Copyright 2020 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 miner implements Ethereum block creation and mining.
package miner
import (
"math/big"
"sync"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/txpool"
"github.com/ethereum/go-ethereum/core/txpool/legacypool"
"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/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/trie"
"github.com/ethereum/go-ethereum/triedb"
)
type mockBackend struct {
bc *core.BlockChain
txPool *txpool.TxPool
}
func NewMockBackend(bc *core.BlockChain, txPool *txpool.TxPool) *mockBackend {
return &mockBackend{
bc: bc,
txPool: txPool,
}
}
func (m *mockBackend) BlockChain() *core.BlockChain {
return m.bc
}
func (m *mockBackend) TxPool() *txpool.TxPool {
return m.txPool
}
type testBlockChain struct {
root common.Hash
config *params.ChainConfig
statedb *state.StateDB
gasLimit uint64
chainHeadFeed *event.Feed
}
func (bc *testBlockChain) Config() *params.ChainConfig {
return bc.config
}
func (bc *testBlockChain) CurrentBlock() *types.Header {
return &types.Header{
Number: new(big.Int),
GasLimit: bc.gasLimit,
}
}
func (bc *testBlockChain) GetBlock(hash common.Hash, number uint64) *types.Block {
return types.NewBlock(bc.CurrentBlock(), nil, nil, trie.NewStackTrie(nil))
}
func (bc *testBlockChain) StateAt(common.Hash) (*state.StateDB, error) {
return bc.statedb, nil
}
func (bc *testBlockChain) HasState(root common.Hash) bool {
return bc.root == root
}
func (bc *testBlockChain) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return bc.chainHeadFeed.Subscribe(ch)
}
func TestBuildPendingBlocks(t *testing.T) {
miner := createMiner(t)
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
block, _, _ := miner.Pending()
if block == nil {
t.Error("Pending failed")
}
}()
wg.Wait()
}
func minerTestGenesisBlock(period uint64, gasLimit uint64, faucet common.Address) *core.Genesis {
config := *params.AllCliqueProtocolChanges
config.Clique = &params.CliqueConfig{
Period: period,
Epoch: config.Clique.Epoch,
}
// Assemble and return the genesis with the precompiles and faucet pre-funded
return &core.Genesis{
Config: &config,
ExtraData: append(append(make([]byte, 32), faucet[:]...), make([]byte, crypto.SignatureLength)...),
GasLimit: gasLimit,
BaseFee: big.NewInt(params.InitialBaseFee),
Difficulty: big.NewInt(1),
Alloc: map[common.Address]types.Account{
common.BytesToAddress([]byte{1}): {Balance: big.NewInt(1)}, // ECRecover
common.BytesToAddress([]byte{2}): {Balance: big.NewInt(1)}, // SHA256
common.BytesToAddress([]byte{3}): {Balance: big.NewInt(1)}, // RIPEMD
common.BytesToAddress([]byte{4}): {Balance: big.NewInt(1)}, // Identity
common.BytesToAddress([]byte{5}): {Balance: big.NewInt(1)}, // ModExp
common.BytesToAddress([]byte{6}): {Balance: big.NewInt(1)}, // ECAdd
common.BytesToAddress([]byte{7}): {Balance: big.NewInt(1)}, // ECScalarMul
common.BytesToAddress([]byte{8}): {Balance: big.NewInt(1)}, // ECPairing
common.BytesToAddress([]byte{9}): {Balance: big.NewInt(1)}, // BLAKE2b
faucet: {Balance: new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(9))},
},
}
}
func createMiner(t *testing.T) *Miner {
// Create Ethash config
config := Config{
PendingFeeRecipient: common.HexToAddress("123456789"),
}
// Create chainConfig
chainDB := rawdb.NewMemoryDatabase()
triedb := triedb.NewDatabase(chainDB, nil)
genesis := minerTestGenesisBlock(15, 11_500_000, common.HexToAddress("12345"))
chainConfig, _, err := core.SetupGenesisBlock(chainDB, triedb, genesis)
if err != nil {
t.Fatalf("can't create new chain config: %v", err)
}
// Create consensus engine
engine := clique.New(chainConfig.Clique, chainDB)
// Create Ethereum backend
bc, err := core.NewBlockChain(chainDB, nil, genesis, nil, engine, vm.Config{}, nil)
if err != nil {
t.Fatalf("can't create new chain %v", err)
}
statedb, _ := state.New(bc.Genesis().Root(), bc.StateCache())
blockchain := &testBlockChain{bc.Genesis().Root(), chainConfig, statedb, 10000000, new(event.Feed)}
pool := legacypool.New(testTxPoolConfig, blockchain)
txpool, _ := txpool.New(testTxPoolConfig.PriceLimit, blockchain, []txpool.SubPool{pool})
// Create Miner
backend := NewMockBackend(bc, txpool)
miner := New(backend, config, engine)
return miner
}