plugeth/miner/worker_test.go

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// Copyright 2018 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
import (
"crypto/rand"
"errors"
"math/big"
"sync/atomic"
"testing"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/clique"
"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/state"
"github.com/ethereum/go-ethereum/core/txpool"
"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/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
const (
// testCode is the testing contract binary code which will initialises some
// variables in constructor
testCode = "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"
// testGas is the gas required for contract deployment.
testGas = 144109
)
var (
// Test chain configurations
testTxPoolConfig txpool.Config
ethashChainConfig *params.ChainConfig
cliqueChainConfig *params.ChainConfig
// Test accounts
testBankKey, _ = crypto.GenerateKey()
testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
testBankFunds = big.NewInt(1000000000000000000)
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testUserKey, _ = crypto.GenerateKey()
testUserAddress = crypto.PubkeyToAddress(testUserKey.PublicKey)
// Test transactions
pendingTxs []*types.Transaction
newTxs []*types.Transaction
testConfig = &Config{
Recommit: time.Second,
GasCeil: params.GenesisGasLimit,
}
)
func init() {
testTxPoolConfig = txpool.DefaultConfig
testTxPoolConfig.Journal = ""
ethashChainConfig = new(params.ChainConfig)
*ethashChainConfig = *params.TestChainConfig
cliqueChainConfig = new(params.ChainConfig)
*cliqueChainConfig = *params.TestChainConfig
cliqueChainConfig.Clique = &params.CliqueConfig{
Period: 10,
Epoch: 30000,
}
signer := types.LatestSigner(params.TestChainConfig)
tx1 := types.MustSignNewTx(testBankKey, signer, &types.AccessListTx{
ChainID: params.TestChainConfig.ChainID,
Nonce: 0,
To: &testUserAddress,
Value: big.NewInt(1000),
Gas: params.TxGas,
GasPrice: big.NewInt(params.InitialBaseFee),
})
pendingTxs = append(pendingTxs, tx1)
tx2 := types.MustSignNewTx(testBankKey, signer, &types.LegacyTx{
Nonce: 1,
To: &testUserAddress,
Value: big.NewInt(1000),
Gas: params.TxGas,
GasPrice: big.NewInt(params.InitialBaseFee),
})
newTxs = append(newTxs, tx2)
}
// testWorkerBackend implements worker.Backend interfaces and wraps all information needed during the testing.
type testWorkerBackend struct {
db ethdb.Database
txPool *txpool.TxPool
chain *core.BlockChain
genesis *core.Genesis
uncleBlock *types.Block
}
func newTestWorkerBackend(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine, db ethdb.Database, n int) *testWorkerBackend {
var gspec = &core.Genesis{
Config: chainConfig,
Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}},
}
switch e := engine.(type) {
case *clique.Clique:
gspec.ExtraData = make([]byte, 32+common.AddressLength+crypto.SignatureLength)
copy(gspec.ExtraData[32:32+common.AddressLength], testBankAddress.Bytes())
e.Authorize(testBankAddress, func(account accounts.Account, s string, data []byte) ([]byte, error) {
return crypto.Sign(crypto.Keccak256(data), testBankKey)
})
case *ethash.Ethash:
default:
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t.Fatalf("unexpected consensus engine type: %T", engine)
}
chain, err := core.NewBlockChain(db, &core.CacheConfig{TrieDirtyDisabled: true}, gspec, nil, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("core.NewBlockChain failed: %v", err)
}
txpool := txpool.NewTxPool(testTxPoolConfig, chainConfig, chain)
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// Generate a small n-block chain and an uncle block for it
var uncle *types.Block
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if n > 0 {
genDb, blocks, _ := core.GenerateChainWithGenesis(gspec, engine, n, func(i int, gen *core.BlockGen) {
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gen.SetCoinbase(testBankAddress)
})
if _, err := chain.InsertChain(blocks); err != nil {
t.Fatalf("failed to insert origin chain: %v", err)
}
parent := chain.GetBlockByHash(chain.CurrentBlock().ParentHash)
blocks, _ = core.GenerateChain(chainConfig, parent, engine, genDb, 1, func(i int, gen *core.BlockGen) {
gen.SetCoinbase(testUserAddress)
})
uncle = blocks[0]
} else {
_, blocks, _ := core.GenerateChainWithGenesis(gspec, engine, 1, func(i int, gen *core.BlockGen) {
gen.SetCoinbase(testUserAddress)
})
uncle = blocks[0]
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}
return &testWorkerBackend{
db: db,
chain: chain,
txPool: txpool,
genesis: gspec,
uncleBlock: uncle,
}
}
func (b *testWorkerBackend) BlockChain() *core.BlockChain { return b.chain }
func (b *testWorkerBackend) TxPool() *txpool.TxPool { return b.txPool }
func (b *testWorkerBackend) StateAtBlock(block *types.Block, reexec uint64, base *state.StateDB, checkLive bool, preferDisk bool) (statedb *state.StateDB, err error) {
return nil, errors.New("not supported")
}
func (b *testWorkerBackend) newRandomUncle() *types.Block {
var parent *types.Block
cur := b.chain.CurrentBlock()
if cur.Number.Uint64() == 0 {
parent = b.chain.Genesis()
} else {
parent = b.chain.GetBlockByHash(b.chain.CurrentBlock().ParentHash)
}
blocks, _ := core.GenerateChain(b.chain.Config(), parent, b.chain.Engine(), b.db, 1, func(i int, gen *core.BlockGen) {
var addr = make([]byte, common.AddressLength)
rand.Read(addr)
gen.SetCoinbase(common.BytesToAddress(addr))
})
return blocks[0]
}
func (b *testWorkerBackend) newRandomTx(creation bool) *types.Transaction {
var tx *types.Transaction
gasPrice := big.NewInt(10 * params.InitialBaseFee)
if creation {
tx, _ = types.SignTx(types.NewContractCreation(b.txPool.Nonce(testBankAddress), big.NewInt(0), testGas, gasPrice, common.FromHex(testCode)), types.HomesteadSigner{}, testBankKey)
} else {
tx, _ = types.SignTx(types.NewTransaction(b.txPool.Nonce(testBankAddress), testUserAddress, big.NewInt(1000), params.TxGas, gasPrice, nil), types.HomesteadSigner{}, testBankKey)
}
return tx
}
func newTestWorker(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine, db ethdb.Database, blocks int) (*worker, *testWorkerBackend) {
backend := newTestWorkerBackend(t, chainConfig, engine, db, blocks)
backend.txPool.AddLocals(pendingTxs)
w := newWorker(testConfig, chainConfig, engine, backend, new(event.TypeMux), nil, false)
w.setEtherbase(testBankAddress)
return w, backend
}
func TestGenerateBlockAndImportClique(t *testing.T) {
testGenerateBlockAndImport(t, true)
}
func testGenerateBlockAndImport(t *testing.T, isClique bool) {
var (
engine consensus.Engine
chainConfig params.ChainConfig
db = rawdb.NewMemoryDatabase()
)
if isClique {
chainConfig = *params.AllCliqueProtocolChanges
chainConfig.Clique = &params.CliqueConfig{Period: 1, Epoch: 30000}
engine = clique.New(chainConfig.Clique, db)
} else {
chainConfig = *params.AllEthashProtocolChanges
engine = ethash.NewFaker()
}
w, b := newTestWorker(t, &chainConfig, engine, db, 0)
defer w.close()
// This test chain imports the mined blocks.
chain, _ := core.NewBlockChain(rawdb.NewMemoryDatabase(), nil, b.genesis, nil, engine, vm.Config{}, nil, nil)
defer chain.Stop()
// Ignore empty commit here for less noise.
w.skipSealHook = func(task *task) bool {
return len(task.receipts) == 0
}
// Wait for mined blocks.
sub := w.mux.Subscribe(core.NewMinedBlockEvent{})
defer sub.Unsubscribe()
// Start mining!
w.start()
for i := 0; i < 5; i++ {
b.txPool.AddLocal(b.newRandomTx(true))
b.txPool.AddLocal(b.newRandomTx(false))
w.postSideBlock(core.ChainSideEvent{Block: b.newRandomUncle()})
w.postSideBlock(core.ChainSideEvent{Block: b.newRandomUncle()})
select {
case ev := <-sub.Chan():
block := ev.Data.(core.NewMinedBlockEvent).Block
if _, err := chain.InsertChain([]*types.Block{block}); err != nil {
t.Fatalf("failed to insert new mined block %d: %v", block.NumberU64(), err)
}
case <-time.After(3 * time.Second): // Worker needs 1s to include new changes.
t.Fatalf("timeout")
}
}
}
func TestEmptyWorkEthash(t *testing.T) {
testEmptyWork(t, ethashChainConfig, ethash.NewFaker())
}
func TestEmptyWorkClique(t *testing.T) {
testEmptyWork(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
}
func testEmptyWork(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) {
defer engine.Close()
w, _ := newTestWorker(t, chainConfig, engine, rawdb.NewMemoryDatabase(), 0)
defer w.close()
var (
taskIndex int
taskCh = make(chan struct{}, 2)
)
checkEqual := func(t *testing.T, task *task, index int) {
// The first empty work without any txs included
receiptLen, balance := 0, big.NewInt(0)
if index == 1 {
// The second full work with 1 tx included
receiptLen, balance = 1, big.NewInt(1000)
}
if len(task.receipts) != receiptLen {
t.Fatalf("receipt number mismatch: have %d, want %d", len(task.receipts), receiptLen)
}
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if task.state.GetBalance(testUserAddress).Cmp(balance) != 0 {
t.Fatalf("account balance mismatch: have %d, want %d", task.state.GetBalance(testUserAddress), balance)
}
}
w.newTaskHook = func(task *task) {
if task.block.NumberU64() == 1 {
checkEqual(t, task, taskIndex)
taskIndex += 1
taskCh <- struct{}{}
}
}
w.skipSealHook = func(task *task) bool { return true }
w.fullTaskHook = func() {
time.Sleep(100 * time.Millisecond)
}
w.start() // Start mining!
for i := 0; i < 2; i += 1 {
select {
case <-taskCh:
case <-time.NewTimer(3 * time.Second).C:
t.Error("new task timeout")
}
}
}
func TestStreamUncleBlock(t *testing.T) {
ethash := ethash.NewFaker()
defer ethash.Close()
w, b := newTestWorker(t, ethashChainConfig, ethash, rawdb.NewMemoryDatabase(), 1)
defer w.close()
var taskCh = make(chan struct{}, 3)
taskIndex := 0
w.newTaskHook = func(task *task) {
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if task.block.NumberU64() == 2 {
// The first task is an empty task, the second
// one has 1 pending tx, the third one has 1 tx
// and 1 uncle.
if taskIndex == 2 {
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have := task.block.Header().UncleHash
want := types.CalcUncleHash([]*types.Header{b.uncleBlock.Header()})
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if have != want {
t.Errorf("uncle hash mismatch: have %s, want %s", have.Hex(), want.Hex())
}
}
taskCh <- struct{}{}
taskIndex += 1
}
}
w.skipSealHook = func(task *task) bool {
return true
}
w.fullTaskHook = func() {
time.Sleep(100 * time.Millisecond)
}
w.start()
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for i := 0; i < 2; i += 1 {
select {
case <-taskCh:
case <-time.NewTimer(time.Second).C:
t.Error("new task timeout")
}
}
w.postSideBlock(core.ChainSideEvent{Block: b.uncleBlock})
select {
case <-taskCh:
case <-time.NewTimer(time.Second).C:
t.Error("new task timeout")
}
}
func TestRegenerateMiningBlockEthash(t *testing.T) {
testRegenerateMiningBlock(t, ethashChainConfig, ethash.NewFaker())
}
func TestRegenerateMiningBlockClique(t *testing.T) {
testRegenerateMiningBlock(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
}
func testRegenerateMiningBlock(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) {
defer engine.Close()
w, b := newTestWorker(t, chainConfig, engine, rawdb.NewMemoryDatabase(), 0)
defer w.close()
var taskCh = make(chan struct{}, 3)
taskIndex := 0
w.newTaskHook = func(task *task) {
if task.block.NumberU64() == 1 {
// The first task is an empty task, the second
// one has 1 pending tx, the third one has 2 txs
if taskIndex == 2 {
receiptLen, balance := 2, big.NewInt(2000)
if len(task.receipts) != receiptLen {
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t.Errorf("receipt number mismatch: have %d, want %d", len(task.receipts), receiptLen)
}
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if task.state.GetBalance(testUserAddress).Cmp(balance) != 0 {
t.Errorf("account balance mismatch: have %d, want %d", task.state.GetBalance(testUserAddress), balance)
}
}
taskCh <- struct{}{}
taskIndex += 1
}
}
w.skipSealHook = func(task *task) bool {
return true
}
w.fullTaskHook = func() {
time.Sleep(100 * time.Millisecond)
}
w.start()
// Ignore the first two works
for i := 0; i < 2; i += 1 {
select {
case <-taskCh:
case <-time.NewTimer(time.Second).C:
t.Error("new task timeout")
}
}
b.txPool.AddLocals(newTxs)
time.Sleep(time.Second)
select {
case <-taskCh:
case <-time.NewTimer(time.Second).C:
t.Error("new task timeout")
}
}
func TestAdjustIntervalEthash(t *testing.T) {
testAdjustInterval(t, ethashChainConfig, ethash.NewFaker())
}
func TestAdjustIntervalClique(t *testing.T) {
testAdjustInterval(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
}
func testAdjustInterval(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) {
defer engine.Close()
w, _ := newTestWorker(t, chainConfig, engine, rawdb.NewMemoryDatabase(), 0)
defer w.close()
w.skipSealHook = func(task *task) bool {
return true
}
w.fullTaskHook = func() {
time.Sleep(100 * time.Millisecond)
}
var (
progress = make(chan struct{}, 10)
result = make([]float64, 0, 10)
index = 0
start atomic.Bool
)
w.resubmitHook = func(minInterval time.Duration, recommitInterval time.Duration) {
// Short circuit if interval checking hasn't started.
if !start.Load() {
return
}
var wantMinInterval, wantRecommitInterval time.Duration
switch index {
case 0:
wantMinInterval, wantRecommitInterval = 3*time.Second, 3*time.Second
case 1:
origin := float64(3 * time.Second.Nanoseconds())
estimate := origin*(1-intervalAdjustRatio) + intervalAdjustRatio*(origin/0.8+intervalAdjustBias)
wantMinInterval, wantRecommitInterval = 3*time.Second, time.Duration(estimate)*time.Nanosecond
case 2:
estimate := result[index-1]
min := float64(3 * time.Second.Nanoseconds())
estimate = estimate*(1-intervalAdjustRatio) + intervalAdjustRatio*(min-intervalAdjustBias)
wantMinInterval, wantRecommitInterval = 3*time.Second, time.Duration(estimate)*time.Nanosecond
case 3:
wantMinInterval, wantRecommitInterval = time.Second, time.Second
}
// Check interval
if minInterval != wantMinInterval {
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t.Errorf("resubmit min interval mismatch: have %v, want %v ", minInterval, wantMinInterval)
}
if recommitInterval != wantRecommitInterval {
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t.Errorf("resubmit interval mismatch: have %v, want %v", recommitInterval, wantRecommitInterval)
}
result = append(result, float64(recommitInterval.Nanoseconds()))
index += 1
progress <- struct{}{}
}
w.start()
time.Sleep(time.Second) // Ensure two tasks have been submitted due to start opt
start.Store(true)
w.setRecommitInterval(3 * time.Second)
select {
case <-progress:
case <-time.NewTimer(time.Second).C:
t.Error("interval reset timeout")
}
w.resubmitAdjustCh <- &intervalAdjust{inc: true, ratio: 0.8}
select {
case <-progress:
case <-time.NewTimer(time.Second).C:
t.Error("interval reset timeout")
}
w.resubmitAdjustCh <- &intervalAdjust{inc: false}
select {
case <-progress:
case <-time.NewTimer(time.Second).C:
t.Error("interval reset timeout")
}
w.setRecommitInterval(500 * time.Millisecond)
select {
case <-progress:
case <-time.NewTimer(time.Second).C:
t.Error("interval reset timeout")
}
}
func TestGetSealingWorkEthash(t *testing.T) {
testGetSealingWork(t, ethashChainConfig, ethash.NewFaker())
}
func TestGetSealingWorkClique(t *testing.T) {
testGetSealingWork(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
}
func TestGetSealingWorkPostMerge(t *testing.T) {
local := new(params.ChainConfig)
*local = *ethashChainConfig
local.TerminalTotalDifficulty = big.NewInt(0)
testGetSealingWork(t, local, ethash.NewFaker())
}
func testGetSealingWork(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) {
defer engine.Close()
w, b := newTestWorker(t, chainConfig, engine, rawdb.NewMemoryDatabase(), 0)
defer w.close()
w.setExtra([]byte{0x01, 0x02})
w.postSideBlock(core.ChainSideEvent{Block: b.uncleBlock})
w.skipSealHook = func(task *task) bool {
return true
}
w.fullTaskHook = func() {
time.Sleep(100 * time.Millisecond)
}
timestamp := uint64(time.Now().Unix())
assertBlock := func(block *types.Block, number uint64, coinbase common.Address, random common.Hash) {
if block.Time() != timestamp {
// Sometime the timestamp will be mutated if the timestamp
// is even smaller than parent block's. It's OK.
t.Logf("Invalid timestamp, want %d, get %d", timestamp, block.Time())
}
if len(block.Uncles()) != 0 {
t.Error("Unexpected uncle block")
}
_, isClique := engine.(*clique.Clique)
if !isClique {
if len(block.Extra()) != 2 {
t.Error("Unexpected extra field")
}
if block.Coinbase() != coinbase {
t.Errorf("Unexpected coinbase got %x want %x", block.Coinbase(), coinbase)
}
} else {
if block.Coinbase() != (common.Address{}) {
t.Error("Unexpected coinbase")
}
}
if !isClique {
if block.MixDigest() != random {
t.Error("Unexpected mix digest")
}
}
if block.Nonce() != 0 {
t.Error("Unexpected block nonce")
}
if block.NumberU64() != number {
t.Errorf("Mismatched block number, want %d got %d", number, block.NumberU64())
}
}
var cases = []struct {
parent common.Hash
coinbase common.Address
random common.Hash
expectNumber uint64
expectErr bool
}{
{
b.chain.Genesis().Hash(),
common.HexToAddress("0xdeadbeef"),
common.HexToHash("0xcafebabe"),
uint64(1),
false,
},
{
b.chain.CurrentBlock().Hash(),
common.HexToAddress("0xdeadbeef"),
common.HexToHash("0xcafebabe"),
b.chain.CurrentBlock().Number.Uint64() + 1,
false,
},
{
b.chain.CurrentBlock().Hash(),
common.Address{},
common.HexToHash("0xcafebabe"),
b.chain.CurrentBlock().Number.Uint64() + 1,
false,
},
{
b.chain.CurrentBlock().Hash(),
common.Address{},
common.Hash{},
b.chain.CurrentBlock().Number.Uint64() + 1,
false,
},
{
common.HexToHash("0xdeadbeef"),
common.HexToAddress("0xdeadbeef"),
common.HexToHash("0xcafebabe"),
0,
true,
},
}
// This API should work even when the automatic sealing is not enabled
for _, c := range cases {
block, _, err := w.getSealingBlock(c.parent, timestamp, c.coinbase, c.random, nil, false)
if c.expectErr {
if err == nil {
t.Error("Expect error but get nil")
}
} else {
if err != nil {
t.Errorf("Unexpected error %v", err)
}
assertBlock(block, c.expectNumber, c.coinbase, c.random)
}
}
// This API should work even when the automatic sealing is enabled
w.start()
for _, c := range cases {
block, _, err := w.getSealingBlock(c.parent, timestamp, c.coinbase, c.random, nil, false)
if c.expectErr {
if err == nil {
t.Error("Expect error but get nil")
}
} else {
if err != nil {
t.Errorf("Unexpected error %v", err)
}
assertBlock(block, c.expectNumber, c.coinbase, c.random)
}
}
}