plugeth/core/txpool/legacypool/legacypool_test.go
jp-imx 14a1e96b68
core/txpool/legacypool: respect nolocals-setting (#28435)
This change adds a check to ensure that transactions added to the legacy pool are not treated as 'locals' if the global locals-management has been disabled. 

This change makes the pool enforce the --txpool.pricelimit setting.
2023-11-20 09:05:20 +01:00

2675 lines
98 KiB
Go

// Copyright 2015 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 legacypool
import (
"crypto/ecdsa"
crand "crypto/rand"
"errors"
"fmt"
"math/big"
"math/rand"
"os"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"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/crypto"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/trie"
)
var (
// testTxPoolConfig is a transaction pool configuration without stateful disk
// sideeffects used during testing.
testTxPoolConfig Config
// eip1559Config is a chain config with EIP-1559 enabled at block 0.
eip1559Config *params.ChainConfig
)
func init() {
testTxPoolConfig = DefaultConfig
testTxPoolConfig.Journal = ""
cpy := *params.TestChainConfig
eip1559Config = &cpy
eip1559Config.BerlinBlock = common.Big0
eip1559Config.LondonBlock = common.Big0
}
type testBlockChain struct {
config *params.ChainConfig
gasLimit atomic.Uint64
statedb *state.StateDB
chainHeadFeed *event.Feed
}
func newTestBlockChain(config *params.ChainConfig, gasLimit uint64, statedb *state.StateDB, chainHeadFeed *event.Feed) *testBlockChain {
bc := testBlockChain{config: config, statedb: statedb, chainHeadFeed: new(event.Feed)}
bc.gasLimit.Store(gasLimit)
return &bc
}
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.Load(),
}
}
func (bc *testBlockChain) GetBlock(hash common.Hash, number uint64) *types.Block {
return types.NewBlock(bc.CurrentBlock(), nil, nil, nil, trie.NewStackTrie(nil))
}
func (bc *testBlockChain) StateAt(common.Hash) (*state.StateDB, error) {
return bc.statedb, nil
}
func (bc *testBlockChain) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return bc.chainHeadFeed.Subscribe(ch)
}
func transaction(nonce uint64, gaslimit uint64, key *ecdsa.PrivateKey) *types.Transaction {
return pricedTransaction(nonce, gaslimit, big.NewInt(1), key)
}
func pricedTransaction(nonce uint64, gaslimit uint64, gasprice *big.Int, key *ecdsa.PrivateKey) *types.Transaction {
tx, _ := types.SignTx(types.NewTransaction(nonce, common.Address{}, big.NewInt(100), gaslimit, gasprice, nil), types.HomesteadSigner{}, key)
return tx
}
func pricedDataTransaction(nonce uint64, gaslimit uint64, gasprice *big.Int, key *ecdsa.PrivateKey, bytes uint64) *types.Transaction {
data := make([]byte, bytes)
crand.Read(data)
tx, _ := types.SignTx(types.NewTransaction(nonce, common.Address{}, big.NewInt(0), gaslimit, gasprice, data), types.HomesteadSigner{}, key)
return tx
}
func dynamicFeeTx(nonce uint64, gaslimit uint64, gasFee *big.Int, tip *big.Int, key *ecdsa.PrivateKey) *types.Transaction {
tx, _ := types.SignNewTx(key, types.LatestSignerForChainID(params.TestChainConfig.ChainID), &types.DynamicFeeTx{
ChainID: params.TestChainConfig.ChainID,
Nonce: nonce,
GasTipCap: tip,
GasFeeCap: gasFee,
Gas: gaslimit,
To: &common.Address{},
Value: big.NewInt(100),
Data: nil,
AccessList: nil,
})
return tx
}
func makeAddressReserver() txpool.AddressReserver {
var (
reserved = make(map[common.Address]struct{})
lock sync.Mutex
)
return func(addr common.Address, reserve bool) error {
lock.Lock()
defer lock.Unlock()
_, exists := reserved[addr]
if reserve {
if exists {
panic("already reserved")
}
reserved[addr] = struct{}{}
return nil
}
if !exists {
panic("not reserved")
}
delete(reserved, addr)
return nil
}
}
func setupPool() (*LegacyPool, *ecdsa.PrivateKey) {
return setupPoolWithConfig(params.TestChainConfig)
}
func setupPoolWithConfig(config *params.ChainConfig) (*LegacyPool, *ecdsa.PrivateKey) {
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(config, 10000000, statedb, new(event.Feed))
key, _ := crypto.GenerateKey()
pool := New(testTxPoolConfig, blockchain)
if err := pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver()); err != nil {
panic(err)
}
// wait for the pool to initialize
<-pool.initDoneCh
return pool, key
}
// validatePoolInternals checks various consistency invariants within the pool.
func validatePoolInternals(pool *LegacyPool) error {
pool.mu.RLock()
defer pool.mu.RUnlock()
// Ensure the total transaction set is consistent with pending + queued
pending, queued := pool.stats()
if total := pool.all.Count(); total != pending+queued {
return fmt.Errorf("total transaction count %d != %d pending + %d queued", total, pending, queued)
}
pool.priced.Reheap()
priced, remote := pool.priced.urgent.Len()+pool.priced.floating.Len(), pool.all.RemoteCount()
if priced != remote {
return fmt.Errorf("total priced transaction count %d != %d", priced, remote)
}
// Ensure the next nonce to assign is the correct one
for addr, txs := range pool.pending {
// Find the last transaction
var last uint64
for nonce := range txs.txs.items {
if last < nonce {
last = nonce
}
}
if nonce := pool.pendingNonces.get(addr); nonce != last+1 {
return fmt.Errorf("pending nonce mismatch: have %v, want %v", nonce, last+1)
}
if txs.totalcost.Cmp(common.Big0) < 0 {
return fmt.Errorf("totalcost went negative: %v", txs.totalcost)
}
}
return nil
}
// validateEvents checks that the correct number of transaction addition events
// were fired on the pool's event feed.
func validateEvents(events chan core.NewTxsEvent, count int) error {
var received []*types.Transaction
for len(received) < count {
select {
case ev := <-events:
received = append(received, ev.Txs...)
case <-time.After(time.Second):
return fmt.Errorf("event #%d not fired", len(received))
}
}
if len(received) > count {
return fmt.Errorf("more than %d events fired: %v", count, received[count:])
}
select {
case ev := <-events:
return fmt.Errorf("more than %d events fired: %v", count, ev.Txs)
case <-time.After(50 * time.Millisecond):
// This branch should be "default", but it's a data race between goroutines,
// reading the event channel and pushing into it, so better wait a bit ensuring
// really nothing gets injected.
}
return nil
}
func deriveSender(tx *types.Transaction) (common.Address, error) {
return types.Sender(types.HomesteadSigner{}, tx)
}
type testChain struct {
*testBlockChain
address common.Address
trigger *bool
}
// testChain.State() is used multiple times to reset the pending state.
// when simulate is true it will create a state that indicates
// that tx0 and tx1 are included in the chain.
func (c *testChain) State() (*state.StateDB, error) {
// delay "state change" by one. The tx pool fetches the
// state multiple times and by delaying it a bit we simulate
// a state change between those fetches.
stdb := c.statedb
if *c.trigger {
c.statedb, _ = state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
// simulate that the new head block included tx0 and tx1
c.statedb.SetNonce(c.address, 2)
c.statedb.SetBalance(c.address, new(big.Int).SetUint64(params.Ether))
*c.trigger = false
}
return stdb, nil
}
// This test simulates a scenario where a new block is imported during a
// state reset and tests whether the pending state is in sync with the
// block head event that initiated the resetState().
func TestStateChangeDuringReset(t *testing.T) {
t.Parallel()
var (
key, _ = crypto.GenerateKey()
address = crypto.PubkeyToAddress(key.PublicKey)
statedb, _ = state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
trigger = false
)
// setup pool with 2 transaction in it
statedb.SetBalance(address, new(big.Int).SetUint64(params.Ether))
blockchain := &testChain{newTestBlockChain(params.TestChainConfig, 1000000000, statedb, new(event.Feed)), address, &trigger}
tx0 := transaction(0, 100000, key)
tx1 := transaction(1, 100000, key)
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
nonce := pool.Nonce(address)
if nonce != 0 {
t.Fatalf("Invalid nonce, want 0, got %d", nonce)
}
pool.addRemotesSync([]*types.Transaction{tx0, tx1})
nonce = pool.Nonce(address)
if nonce != 2 {
t.Fatalf("Invalid nonce, want 2, got %d", nonce)
}
// trigger state change in the background
trigger = true
<-pool.requestReset(nil, nil)
nonce = pool.Nonce(address)
if nonce != 2 {
t.Fatalf("Invalid nonce, want 2, got %d", nonce)
}
}
func testAddBalance(pool *LegacyPool, addr common.Address, amount *big.Int) {
pool.mu.Lock()
pool.currentState.AddBalance(addr, amount)
pool.mu.Unlock()
}
func testSetNonce(pool *LegacyPool, addr common.Address, nonce uint64) {
pool.mu.Lock()
pool.currentState.SetNonce(addr, nonce)
pool.mu.Unlock()
}
func TestInvalidTransactions(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
tx := transaction(0, 100, key)
from, _ := deriveSender(tx)
// Intrinsic gas too low
testAddBalance(pool, from, big.NewInt(1))
if err, want := pool.addRemote(tx), core.ErrIntrinsicGas; !errors.Is(err, want) {
t.Errorf("want %v have %v", want, err)
}
// Insufficient funds
tx = transaction(0, 100000, key)
if err, want := pool.addRemote(tx), core.ErrInsufficientFunds; !errors.Is(err, want) {
t.Errorf("want %v have %v", want, err)
}
testSetNonce(pool, from, 1)
testAddBalance(pool, from, big.NewInt(0xffffffffffffff))
tx = transaction(0, 100000, key)
if err, want := pool.addRemote(tx), core.ErrNonceTooLow; !errors.Is(err, want) {
t.Errorf("want %v have %v", want, err)
}
tx = transaction(1, 100000, key)
pool.gasTip.Store(big.NewInt(1000))
if err, want := pool.addRemote(tx), txpool.ErrUnderpriced; !errors.Is(err, want) {
t.Errorf("want %v have %v", want, err)
}
if err := pool.addLocal(tx); err != nil {
t.Error("expected", nil, "got", err)
}
}
func TestQueue(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
tx := transaction(0, 100, key)
from, _ := deriveSender(tx)
testAddBalance(pool, from, big.NewInt(1000))
<-pool.requestReset(nil, nil)
pool.enqueueTx(tx.Hash(), tx, false, true)
<-pool.requestPromoteExecutables(newAccountSet(pool.signer, from))
if len(pool.pending) != 1 {
t.Error("expected valid txs to be 1 is", len(pool.pending))
}
tx = transaction(1, 100, key)
from, _ = deriveSender(tx)
testSetNonce(pool, from, 2)
pool.enqueueTx(tx.Hash(), tx, false, true)
<-pool.requestPromoteExecutables(newAccountSet(pool.signer, from))
if _, ok := pool.pending[from].txs.items[tx.Nonce()]; ok {
t.Error("expected transaction to be in tx pool")
}
if len(pool.queue) > 0 {
t.Error("expected transaction queue to be empty. is", len(pool.queue))
}
}
func TestQueue2(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
tx1 := transaction(0, 100, key)
tx2 := transaction(10, 100, key)
tx3 := transaction(11, 100, key)
from, _ := deriveSender(tx1)
testAddBalance(pool, from, big.NewInt(1000))
pool.reset(nil, nil)
pool.enqueueTx(tx1.Hash(), tx1, false, true)
pool.enqueueTx(tx2.Hash(), tx2, false, true)
pool.enqueueTx(tx3.Hash(), tx3, false, true)
pool.promoteExecutables([]common.Address{from})
if len(pool.pending) != 1 {
t.Error("expected pending length to be 1, got", len(pool.pending))
}
if pool.queue[from].Len() != 2 {
t.Error("expected len(queue) == 2, got", pool.queue[from].Len())
}
}
func TestNegativeValue(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
tx, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(-1), 100, big.NewInt(1), nil), types.HomesteadSigner{}, key)
from, _ := deriveSender(tx)
testAddBalance(pool, from, big.NewInt(1))
if err := pool.addRemote(tx); err != txpool.ErrNegativeValue {
t.Error("expected", txpool.ErrNegativeValue, "got", err)
}
}
func TestTipAboveFeeCap(t *testing.T) {
t.Parallel()
pool, key := setupPoolWithConfig(eip1559Config)
defer pool.Close()
tx := dynamicFeeTx(0, 100, big.NewInt(1), big.NewInt(2), key)
if err := pool.addRemote(tx); err != core.ErrTipAboveFeeCap {
t.Error("expected", core.ErrTipAboveFeeCap, "got", err)
}
}
func TestVeryHighValues(t *testing.T) {
t.Parallel()
pool, key := setupPoolWithConfig(eip1559Config)
defer pool.Close()
veryBigNumber := big.NewInt(1)
veryBigNumber.Lsh(veryBigNumber, 300)
tx := dynamicFeeTx(0, 100, big.NewInt(1), veryBigNumber, key)
if err := pool.addRemote(tx); err != core.ErrTipVeryHigh {
t.Error("expected", core.ErrTipVeryHigh, "got", err)
}
tx2 := dynamicFeeTx(0, 100, veryBigNumber, big.NewInt(1), key)
if err := pool.addRemote(tx2); err != core.ErrFeeCapVeryHigh {
t.Error("expected", core.ErrFeeCapVeryHigh, "got", err)
}
}
func TestChainFork(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
addr := crypto.PubkeyToAddress(key.PublicKey)
resetState := func() {
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
statedb.AddBalance(addr, big.NewInt(100000000000000))
pool.chain = newTestBlockChain(pool.chainconfig, 1000000, statedb, new(event.Feed))
<-pool.requestReset(nil, nil)
}
resetState()
tx := transaction(0, 100000, key)
if _, err := pool.add(tx, false); err != nil {
t.Error("didn't expect error", err)
}
pool.removeTx(tx.Hash(), true, true)
// reset the pool's internal state
resetState()
if _, err := pool.add(tx, false); err != nil {
t.Error("didn't expect error", err)
}
}
func TestDoubleNonce(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
addr := crypto.PubkeyToAddress(key.PublicKey)
resetState := func() {
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
statedb.AddBalance(addr, big.NewInt(100000000000000))
pool.chain = newTestBlockChain(pool.chainconfig, 1000000, statedb, new(event.Feed))
<-pool.requestReset(nil, nil)
}
resetState()
signer := types.HomesteadSigner{}
tx1, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), 100000, big.NewInt(1), nil), signer, key)
tx2, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), 1000000, big.NewInt(2), nil), signer, key)
tx3, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), 1000000, big.NewInt(1), nil), signer, key)
// Add the first two transaction, ensure higher priced stays only
if replace, err := pool.add(tx1, false); err != nil || replace {
t.Errorf("first transaction insert failed (%v) or reported replacement (%v)", err, replace)
}
if replace, err := pool.add(tx2, false); err != nil || !replace {
t.Errorf("second transaction insert failed (%v) or not reported replacement (%v)", err, replace)
}
<-pool.requestPromoteExecutables(newAccountSet(signer, addr))
if pool.pending[addr].Len() != 1 {
t.Error("expected 1 pending transactions, got", pool.pending[addr].Len())
}
if tx := pool.pending[addr].txs.items[0]; tx.Hash() != tx2.Hash() {
t.Errorf("transaction mismatch: have %x, want %x", tx.Hash(), tx2.Hash())
}
// Add the third transaction and ensure it's not saved (smaller price)
pool.add(tx3, false)
<-pool.requestPromoteExecutables(newAccountSet(signer, addr))
if pool.pending[addr].Len() != 1 {
t.Error("expected 1 pending transactions, got", pool.pending[addr].Len())
}
if tx := pool.pending[addr].txs.items[0]; tx.Hash() != tx2.Hash() {
t.Errorf("transaction mismatch: have %x, want %x", tx.Hash(), tx2.Hash())
}
// Ensure the total transaction count is correct
if pool.all.Count() != 1 {
t.Error("expected 1 total transactions, got", pool.all.Count())
}
}
func TestMissingNonce(t *testing.T) {
t.Parallel()
pool, key := setupPool()
defer pool.Close()
addr := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, addr, big.NewInt(100000000000000))
tx := transaction(1, 100000, key)
if _, err := pool.add(tx, false); err != nil {
t.Error("didn't expect error", err)
}
if len(pool.pending) != 0 {
t.Error("expected 0 pending transactions, got", len(pool.pending))
}
if pool.queue[addr].Len() != 1 {
t.Error("expected 1 queued transaction, got", pool.queue[addr].Len())
}
if pool.all.Count() != 1 {
t.Error("expected 1 total transactions, got", pool.all.Count())
}
}
func TestNonceRecovery(t *testing.T) {
t.Parallel()
const n = 10
pool, key := setupPool()
defer pool.Close()
addr := crypto.PubkeyToAddress(key.PublicKey)
testSetNonce(pool, addr, n)
testAddBalance(pool, addr, big.NewInt(100000000000000))
<-pool.requestReset(nil, nil)
tx := transaction(n, 100000, key)
if err := pool.addRemote(tx); err != nil {
t.Error(err)
}
// simulate some weird re-order of transactions and missing nonce(s)
testSetNonce(pool, addr, n-1)
<-pool.requestReset(nil, nil)
if fn := pool.Nonce(addr); fn != n-1 {
t.Errorf("expected nonce to be %d, got %d", n-1, fn)
}
}
// Tests that if an account runs out of funds, any pending and queued transactions
// are dropped.
func TestDropping(t *testing.T) {
t.Parallel()
// Create a test account and fund it
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000))
// Add some pending and some queued transactions
var (
tx0 = transaction(0, 100, key)
tx1 = transaction(1, 200, key)
tx2 = transaction(2, 300, key)
tx10 = transaction(10, 100, key)
tx11 = transaction(11, 200, key)
tx12 = transaction(12, 300, key)
)
pool.all.Add(tx0, false)
pool.priced.Put(tx0, false)
pool.promoteTx(account, tx0.Hash(), tx0)
pool.all.Add(tx1, false)
pool.priced.Put(tx1, false)
pool.promoteTx(account, tx1.Hash(), tx1)
pool.all.Add(tx2, false)
pool.priced.Put(tx2, false)
pool.promoteTx(account, tx2.Hash(), tx2)
pool.enqueueTx(tx10.Hash(), tx10, false, true)
pool.enqueueTx(tx11.Hash(), tx11, false, true)
pool.enqueueTx(tx12.Hash(), tx12, false, true)
// Check that pre and post validations leave the pool as is
if pool.pending[account].Len() != 3 {
t.Errorf("pending transaction mismatch: have %d, want %d", pool.pending[account].Len(), 3)
}
if pool.queue[account].Len() != 3 {
t.Errorf("queued transaction mismatch: have %d, want %d", pool.queue[account].Len(), 3)
}
if pool.all.Count() != 6 {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), 6)
}
<-pool.requestReset(nil, nil)
if pool.pending[account].Len() != 3 {
t.Errorf("pending transaction mismatch: have %d, want %d", pool.pending[account].Len(), 3)
}
if pool.queue[account].Len() != 3 {
t.Errorf("queued transaction mismatch: have %d, want %d", pool.queue[account].Len(), 3)
}
if pool.all.Count() != 6 {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), 6)
}
// Reduce the balance of the account, and check that invalidated transactions are dropped
testAddBalance(pool, account, big.NewInt(-650))
<-pool.requestReset(nil, nil)
if _, ok := pool.pending[account].txs.items[tx0.Nonce()]; !ok {
t.Errorf("funded pending transaction missing: %v", tx0)
}
if _, ok := pool.pending[account].txs.items[tx1.Nonce()]; !ok {
t.Errorf("funded pending transaction missing: %v", tx0)
}
if _, ok := pool.pending[account].txs.items[tx2.Nonce()]; ok {
t.Errorf("out-of-fund pending transaction present: %v", tx1)
}
if _, ok := pool.queue[account].txs.items[tx10.Nonce()]; !ok {
t.Errorf("funded queued transaction missing: %v", tx10)
}
if _, ok := pool.queue[account].txs.items[tx11.Nonce()]; !ok {
t.Errorf("funded queued transaction missing: %v", tx10)
}
if _, ok := pool.queue[account].txs.items[tx12.Nonce()]; ok {
t.Errorf("out-of-fund queued transaction present: %v", tx11)
}
if pool.all.Count() != 4 {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), 4)
}
// Reduce the block gas limit, check that invalidated transactions are dropped
pool.chain.(*testBlockChain).gasLimit.Store(100)
<-pool.requestReset(nil, nil)
if _, ok := pool.pending[account].txs.items[tx0.Nonce()]; !ok {
t.Errorf("funded pending transaction missing: %v", tx0)
}
if _, ok := pool.pending[account].txs.items[tx1.Nonce()]; ok {
t.Errorf("over-gased pending transaction present: %v", tx1)
}
if _, ok := pool.queue[account].txs.items[tx10.Nonce()]; !ok {
t.Errorf("funded queued transaction missing: %v", tx10)
}
if _, ok := pool.queue[account].txs.items[tx11.Nonce()]; ok {
t.Errorf("over-gased queued transaction present: %v", tx11)
}
if pool.all.Count() != 2 {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), 2)
}
}
// Tests that if a transaction is dropped from the current pending pool (e.g. out
// of fund), all consecutive (still valid, but not executable) transactions are
// postponed back into the future queue to prevent broadcasting them.
func TestPostponing(t *testing.T) {
t.Parallel()
// Create the pool to test the postponing with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create two test accounts to produce different gap profiles with
keys := make([]*ecdsa.PrivateKey, 2)
accs := make([]common.Address, len(keys))
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
accs[i] = crypto.PubkeyToAddress(keys[i].PublicKey)
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(50100))
}
// Add a batch consecutive pending transactions for validation
txs := []*types.Transaction{}
for i, key := range keys {
for j := 0; j < 100; j++ {
var tx *types.Transaction
if (i+j)%2 == 0 {
tx = transaction(uint64(j), 25000, key)
} else {
tx = transaction(uint64(j), 50000, key)
}
txs = append(txs, tx)
}
}
for i, err := range pool.addRemotesSync(txs) {
if err != nil {
t.Fatalf("tx %d: failed to add transactions: %v", i, err)
}
}
// Check that pre and post validations leave the pool as is
if pending := pool.pending[accs[0]].Len() + pool.pending[accs[1]].Len(); pending != len(txs) {
t.Errorf("pending transaction mismatch: have %d, want %d", pending, len(txs))
}
if len(pool.queue) != 0 {
t.Errorf("queued accounts mismatch: have %d, want %d", len(pool.queue), 0)
}
if pool.all.Count() != len(txs) {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), len(txs))
}
<-pool.requestReset(nil, nil)
if pending := pool.pending[accs[0]].Len() + pool.pending[accs[1]].Len(); pending != len(txs) {
t.Errorf("pending transaction mismatch: have %d, want %d", pending, len(txs))
}
if len(pool.queue) != 0 {
t.Errorf("queued accounts mismatch: have %d, want %d", len(pool.queue), 0)
}
if pool.all.Count() != len(txs) {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), len(txs))
}
// Reduce the balance of the account, and check that transactions are reorganised
for _, addr := range accs {
testAddBalance(pool, addr, big.NewInt(-1))
}
<-pool.requestReset(nil, nil)
// The first account's first transaction remains valid, check that subsequent
// ones are either filtered out, or queued up for later.
if _, ok := pool.pending[accs[0]].txs.items[txs[0].Nonce()]; !ok {
t.Errorf("tx %d: valid and funded transaction missing from pending pool: %v", 0, txs[0])
}
if _, ok := pool.queue[accs[0]].txs.items[txs[0].Nonce()]; ok {
t.Errorf("tx %d: valid and funded transaction present in future queue: %v", 0, txs[0])
}
for i, tx := range txs[1:100] {
if i%2 == 1 {
if _, ok := pool.pending[accs[0]].txs.items[tx.Nonce()]; ok {
t.Errorf("tx %d: valid but future transaction present in pending pool: %v", i+1, tx)
}
if _, ok := pool.queue[accs[0]].txs.items[tx.Nonce()]; !ok {
t.Errorf("tx %d: valid but future transaction missing from future queue: %v", i+1, tx)
}
} else {
if _, ok := pool.pending[accs[0]].txs.items[tx.Nonce()]; ok {
t.Errorf("tx %d: out-of-fund transaction present in pending pool: %v", i+1, tx)
}
if _, ok := pool.queue[accs[0]].txs.items[tx.Nonce()]; ok {
t.Errorf("tx %d: out-of-fund transaction present in future queue: %v", i+1, tx)
}
}
}
// The second account's first transaction got invalid, check that all transactions
// are either filtered out, or queued up for later.
if pool.pending[accs[1]] != nil {
t.Errorf("invalidated account still has pending transactions")
}
for i, tx := range txs[100:] {
if i%2 == 1 {
if _, ok := pool.queue[accs[1]].txs.items[tx.Nonce()]; !ok {
t.Errorf("tx %d: valid but future transaction missing from future queue: %v", 100+i, tx)
}
} else {
if _, ok := pool.queue[accs[1]].txs.items[tx.Nonce()]; ok {
t.Errorf("tx %d: out-of-fund transaction present in future queue: %v", 100+i, tx)
}
}
}
if pool.all.Count() != len(txs)/2 {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), len(txs)/2)
}
}
// Tests that if the transaction pool has both executable and non-executable
// transactions from an origin account, filling the nonce gap moves all queued
// ones into the pending pool.
func TestGapFilling(t *testing.T) {
t.Parallel()
// Create a test account and fund it
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000))
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, testTxPoolConfig.AccountQueue+5)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a pending and a queued transaction with a nonce-gap in between
pool.addRemotesSync([]*types.Transaction{
transaction(0, 100000, key),
transaction(2, 100000, key),
})
pending, queued := pool.Stats()
if pending != 1 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 1)
}
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
if err := validateEvents(events, 1); err != nil {
t.Fatalf("original event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Fill the nonce gap and ensure all transactions become pending
if err := pool.addRemoteSync(transaction(1, 100000, key)); err != nil {
t.Fatalf("failed to add gapped transaction: %v", err)
}
pending, queued = pool.Stats()
if pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("gap-filling event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that if the transaction count belonging to a single account goes above
// some threshold, the higher transactions are dropped to prevent DOS attacks.
func TestQueueAccountLimiting(t *testing.T) {
t.Parallel()
// Create a test account and fund it
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000))
// Keep queuing up transactions and make sure all above a limit are dropped
for i := uint64(1); i <= testTxPoolConfig.AccountQueue+5; i++ {
if err := pool.addRemoteSync(transaction(i, 100000, key)); err != nil {
t.Fatalf("tx %d: failed to add transaction: %v", i, err)
}
if len(pool.pending) != 0 {
t.Errorf("tx %d: pending pool size mismatch: have %d, want %d", i, len(pool.pending), 0)
}
if i <= testTxPoolConfig.AccountQueue {
if pool.queue[account].Len() != int(i) {
t.Errorf("tx %d: queue size mismatch: have %d, want %d", i, pool.queue[account].Len(), i)
}
} else {
if pool.queue[account].Len() != int(testTxPoolConfig.AccountQueue) {
t.Errorf("tx %d: queue limit mismatch: have %d, want %d", i, pool.queue[account].Len(), testTxPoolConfig.AccountQueue)
}
}
}
if pool.all.Count() != int(testTxPoolConfig.AccountQueue) {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), testTxPoolConfig.AccountQueue)
}
}
// Tests that if the transaction count belonging to multiple accounts go above
// some threshold, the higher transactions are dropped to prevent DOS attacks.
//
// This logic should not hold for local transactions, unless the local tracking
// mechanism is disabled.
func TestQueueGlobalLimiting(t *testing.T) {
testQueueGlobalLimiting(t, false)
}
func TestQueueGlobalLimitingNoLocals(t *testing.T) {
testQueueGlobalLimiting(t, true)
}
func testQueueGlobalLimiting(t *testing.T, nolocals bool) {
t.Parallel()
// Create the pool to test the limit enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.NoLocals = nolocals
config.GlobalQueue = config.AccountQueue*3 - 1 // reduce the queue limits to shorten test time (-1 to make it non divisible)
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create a number of test accounts and fund them (last one will be the local)
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
local := keys[len(keys)-1]
// Generate and queue a batch of transactions
nonces := make(map[common.Address]uint64)
txs := make(types.Transactions, 0, 3*config.GlobalQueue)
for len(txs) < cap(txs) {
key := keys[rand.Intn(len(keys)-1)] // skip adding transactions with the local account
addr := crypto.PubkeyToAddress(key.PublicKey)
txs = append(txs, transaction(nonces[addr]+1, 100000, key))
nonces[addr]++
}
// Import the batch and verify that limits have been enforced
pool.addRemotesSync(txs)
queued := 0
for addr, list := range pool.queue {
if list.Len() > int(config.AccountQueue) {
t.Errorf("addr %x: queued accounts overflown allowance: %d > %d", addr, list.Len(), config.AccountQueue)
}
queued += list.Len()
}
if queued > int(config.GlobalQueue) {
t.Fatalf("total transactions overflow allowance: %d > %d", queued, config.GlobalQueue)
}
// Generate a batch of transactions from the local account and import them
txs = txs[:0]
for i := uint64(0); i < 3*config.GlobalQueue; i++ {
txs = append(txs, transaction(i+1, 100000, local))
}
pool.addLocals(txs)
// If locals are disabled, the previous eviction algorithm should apply here too
if nolocals {
queued := 0
for addr, list := range pool.queue {
if list.Len() > int(config.AccountQueue) {
t.Errorf("addr %x: queued accounts overflown allowance: %d > %d", addr, list.Len(), config.AccountQueue)
}
queued += list.Len()
}
if queued > int(config.GlobalQueue) {
t.Fatalf("total transactions overflow allowance: %d > %d", queued, config.GlobalQueue)
}
} else {
// Local exemptions are enabled, make sure the local account owned the queue
if len(pool.queue) != 1 {
t.Errorf("multiple accounts in queue: have %v, want %v", len(pool.queue), 1)
}
// Also ensure no local transactions are ever dropped, even if above global limits
if queued := pool.queue[crypto.PubkeyToAddress(local.PublicKey)].Len(); uint64(queued) != 3*config.GlobalQueue {
t.Fatalf("local account queued transaction count mismatch: have %v, want %v", queued, 3*config.GlobalQueue)
}
}
}
// Tests that if an account remains idle for a prolonged amount of time, any
// non-executable transactions queued up are dropped to prevent wasting resources
// on shuffling them around.
//
// This logic should not hold for local transactions, unless the local tracking
// mechanism is disabled.
func TestQueueTimeLimiting(t *testing.T) {
testQueueTimeLimiting(t, false)
}
func TestQueueTimeLimitingNoLocals(t *testing.T) {
testQueueTimeLimiting(t, true)
}
func testQueueTimeLimiting(t *testing.T, nolocals bool) {
// Reduce the eviction interval to a testable amount
defer func(old time.Duration) { evictionInterval = old }(evictionInterval)
evictionInterval = time.Millisecond * 100
// Create the pool to test the non-expiration enforcement
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.Lifetime = time.Second
config.NoLocals = nolocals
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create two test accounts to ensure remotes expire but locals do not
local, _ := crypto.GenerateKey()
remote, _ := crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(local.PublicKey), big.NewInt(1000000000))
testAddBalance(pool, crypto.PubkeyToAddress(remote.PublicKey), big.NewInt(1000000000))
// Add the two transactions and ensure they both are queued up
if err := pool.addLocal(pricedTransaction(1, 100000, big.NewInt(1), local)); err != nil {
t.Fatalf("failed to add local transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(1, 100000, big.NewInt(1), remote)); err != nil {
t.Fatalf("failed to add remote transaction: %v", err)
}
pending, queued := pool.Stats()
if pending != 0 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 0)
}
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Allow the eviction interval to run
time.Sleep(2 * evictionInterval)
// Transactions should not be evicted from the queue yet since lifetime duration has not passed
pending, queued = pool.Stats()
if pending != 0 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 0)
}
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Wait a bit for eviction to run and clean up any leftovers, and ensure only the local remains
time.Sleep(2 * config.Lifetime)
pending, queued = pool.Stats()
if pending != 0 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 0)
}
if nolocals {
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
} else {
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// remove current transactions and increase nonce to prepare for a reset and cleanup
statedb.SetNonce(crypto.PubkeyToAddress(remote.PublicKey), 2)
statedb.SetNonce(crypto.PubkeyToAddress(local.PublicKey), 2)
<-pool.requestReset(nil, nil)
// make sure queue, pending are cleared
pending, queued = pool.Stats()
if pending != 0 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 0)
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Queue gapped transactions
if err := pool.addLocal(pricedTransaction(4, 100000, big.NewInt(1), local)); err != nil {
t.Fatalf("failed to add remote transaction: %v", err)
}
if err := pool.addRemoteSync(pricedTransaction(4, 100000, big.NewInt(1), remote)); err != nil {
t.Fatalf("failed to add remote transaction: %v", err)
}
time.Sleep(5 * evictionInterval) // A half lifetime pass
// Queue executable transactions, the life cycle should be restarted.
if err := pool.addLocal(pricedTransaction(2, 100000, big.NewInt(1), local)); err != nil {
t.Fatalf("failed to add remote transaction: %v", err)
}
if err := pool.addRemoteSync(pricedTransaction(2, 100000, big.NewInt(1), remote)); err != nil {
t.Fatalf("failed to add remote transaction: %v", err)
}
time.Sleep(6 * evictionInterval)
// All gapped transactions shouldn't be kicked out
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// The whole life time pass after last promotion, kick out stale transactions
time.Sleep(2 * config.Lifetime)
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if nolocals {
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
} else {
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that even if the transaction count belonging to a single account goes
// above some threshold, as long as the transactions are executable, they are
// accepted.
func TestPendingLimiting(t *testing.T) {
t.Parallel()
// Create a test account and fund it
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000000000))
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, testTxPoolConfig.AccountQueue+5)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Keep queuing up transactions and make sure all above a limit are dropped
for i := uint64(0); i < testTxPoolConfig.AccountQueue+5; i++ {
if err := pool.addRemoteSync(transaction(i, 100000, key)); err != nil {
t.Fatalf("tx %d: failed to add transaction: %v", i, err)
}
if pool.pending[account].Len() != int(i)+1 {
t.Errorf("tx %d: pending pool size mismatch: have %d, want %d", i, pool.pending[account].Len(), i+1)
}
if len(pool.queue) != 0 {
t.Errorf("tx %d: queue size mismatch: have %d, want %d", i, pool.queue[account].Len(), 0)
}
}
if pool.all.Count() != int(testTxPoolConfig.AccountQueue+5) {
t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), testTxPoolConfig.AccountQueue+5)
}
if err := validateEvents(events, int(testTxPoolConfig.AccountQueue+5)); err != nil {
t.Fatalf("event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that if the transaction count belonging to multiple accounts go above
// some hard threshold, the higher transactions are dropped to prevent DOS
// attacks.
func TestPendingGlobalLimiting(t *testing.T) {
t.Parallel()
// Create the pool to test the limit enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.GlobalSlots = config.AccountSlots * 10
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions
nonces := make(map[common.Address]uint64)
txs := types.Transactions{}
for _, key := range keys {
addr := crypto.PubkeyToAddress(key.PublicKey)
for j := 0; j < int(config.GlobalSlots)/len(keys)*2; j++ {
txs = append(txs, transaction(nonces[addr], 100000, key))
nonces[addr]++
}
}
// Import the batch and verify that limits have been enforced
pool.addRemotesSync(txs)
pending := 0
for _, list := range pool.pending {
pending += list.Len()
}
if pending > int(config.GlobalSlots) {
t.Fatalf("total pending transactions overflow allowance: %d > %d", pending, config.GlobalSlots)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Test the limit on transaction size is enforced correctly.
// This test verifies every transaction having allowed size
// is added to the pool, and longer transactions are rejected.
func TestAllowedTxSize(t *testing.T) {
t.Parallel()
// Create a test account and fund it
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000000))
// Compute maximal data size for transactions (lower bound).
//
// It is assumed the fields in the transaction (except of the data) are:
// - nonce <= 32 bytes
// - gasTip <= 32 bytes
// - gasLimit <= 32 bytes
// - recipient == 20 bytes
// - value <= 32 bytes
// - signature == 65 bytes
// All those fields are summed up to at most 213 bytes.
baseSize := uint64(213)
dataSize := txMaxSize - baseSize
// Try adding a transaction with maximal allowed size
tx := pricedDataTransaction(0, pool.currentHead.Load().GasLimit, big.NewInt(1), key, dataSize)
if err := pool.addRemoteSync(tx); err != nil {
t.Fatalf("failed to add transaction of size %d, close to maximal: %v", int(tx.Size()), err)
}
// Try adding a transaction with random allowed size
if err := pool.addRemoteSync(pricedDataTransaction(1, pool.currentHead.Load().GasLimit, big.NewInt(1), key, uint64(rand.Intn(int(dataSize))))); err != nil {
t.Fatalf("failed to add transaction of random allowed size: %v", err)
}
// Try adding a transaction of minimal not allowed size
if err := pool.addRemoteSync(pricedDataTransaction(2, pool.currentHead.Load().GasLimit, big.NewInt(1), key, txMaxSize)); err == nil {
t.Fatalf("expected rejection on slightly oversize transaction")
}
// Try adding a transaction of random not allowed size
if err := pool.addRemoteSync(pricedDataTransaction(2, pool.currentHead.Load().GasLimit, big.NewInt(1), key, dataSize+1+uint64(rand.Intn(10*txMaxSize)))); err == nil {
t.Fatalf("expected rejection on oversize transaction")
}
// Run some sanity checks on the pool internals
pending, queued := pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that if transactions start being capped, transactions are also removed from 'all'
func TestCapClearsFromAll(t *testing.T) {
t.Parallel()
// Create the pool to test the limit enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.AccountSlots = 2
config.AccountQueue = 2
config.GlobalSlots = 8
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create a number of test accounts and fund them
key, _ := crypto.GenerateKey()
addr := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, addr, big.NewInt(1000000))
txs := types.Transactions{}
for j := 0; j < int(config.GlobalSlots)*2; j++ {
txs = append(txs, transaction(uint64(j), 100000, key))
}
// Import the batch and verify that limits have been enforced
pool.addRemotes(txs)
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that if the transaction count belonging to multiple accounts go above
// some hard threshold, if they are under the minimum guaranteed slot count then
// the transactions are still kept.
func TestPendingMinimumAllowance(t *testing.T) {
t.Parallel()
// Create the pool to test the limit enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.GlobalSlots = 1
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions
nonces := make(map[common.Address]uint64)
txs := types.Transactions{}
for _, key := range keys {
addr := crypto.PubkeyToAddress(key.PublicKey)
for j := 0; j < int(config.AccountSlots)*2; j++ {
txs = append(txs, transaction(nonces[addr], 100000, key))
nonces[addr]++
}
}
// Import the batch and verify that limits have been enforced
pool.addRemotesSync(txs)
for addr, list := range pool.pending {
if list.Len() != int(config.AccountSlots) {
t.Errorf("addr %x: total pending transactions mismatch: have %d, want %d", addr, list.Len(), config.AccountSlots)
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that setting the transaction pool gas price to a higher value correctly
// discards everything cheaper than that and moves any gapped transactions back
// from the pending pool to the queue.
//
// Note, local transactions are never allowed to be dropped.
func TestRepricing(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 4)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions, both pending and queued
txs := types.Transactions{}
txs = append(txs, pricedTransaction(0, 100000, big.NewInt(2), keys[0]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(1), keys[0]))
txs = append(txs, pricedTransaction(2, 100000, big.NewInt(2), keys[0]))
txs = append(txs, pricedTransaction(0, 100000, big.NewInt(1), keys[1]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(2), keys[1]))
txs = append(txs, pricedTransaction(2, 100000, big.NewInt(2), keys[1]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(2), keys[2]))
txs = append(txs, pricedTransaction(2, 100000, big.NewInt(1), keys[2]))
txs = append(txs, pricedTransaction(3, 100000, big.NewInt(2), keys[2]))
ltx := pricedTransaction(0, 100000, big.NewInt(1), keys[3])
// Import the batch and that both pending and queued transactions match up
pool.addRemotesSync(txs)
pool.addLocal(ltx)
pending, queued := pool.Stats()
if pending != 7 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 7)
}
if queued != 3 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 3)
}
if err := validateEvents(events, 7); err != nil {
t.Fatalf("original event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Reprice the pool and check that underpriced transactions get dropped
pool.SetGasTip(big.NewInt(2))
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 5 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 5)
}
if err := validateEvents(events, 0); err != nil {
t.Fatalf("reprice event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Check that we can't add the old transactions back
if err := pool.addRemote(pricedTransaction(1, 100000, big.NewInt(1), keys[0])); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
if err := pool.addRemote(pricedTransaction(0, 100000, big.NewInt(1), keys[1])); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
if err := pool.addRemote(pricedTransaction(2, 100000, big.NewInt(1), keys[2])); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced queued transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
if err := validateEvents(events, 0); err != nil {
t.Fatalf("post-reprice event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// However we can add local underpriced transactions
tx := pricedTransaction(1, 100000, big.NewInt(1), keys[3])
if err := pool.addLocal(tx); err != nil {
t.Fatalf("failed to add underpriced local transaction: %v", err)
}
if pending, _ = pool.Stats(); pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if err := validateEvents(events, 1); err != nil {
t.Fatalf("post-reprice local event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// And we can fill gaps with properly priced transactions
if err := pool.addRemote(pricedTransaction(1, 100000, big.NewInt(2), keys[0])); err != nil {
t.Fatalf("failed to add pending transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(0, 100000, big.NewInt(2), keys[1])); err != nil {
t.Fatalf("failed to add pending transaction: %v", err)
}
if err := pool.addRemoteSync(pricedTransaction(2, 100000, big.NewInt(2), keys[2])); err != nil {
t.Fatalf("failed to add queued transaction: %v", err)
}
if err := validateEvents(events, 5); err != nil {
t.Fatalf("post-reprice event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
func TestMinGasPriceEnforced(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(eip1559Config, 10000000, statedb, new(event.Feed))
txPoolConfig := DefaultConfig
txPoolConfig.NoLocals = true
pool := New(txPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(txPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
key, _ := crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1000000))
tx := pricedTransaction(0, 100000, big.NewInt(2), key)
pool.SetGasTip(big.NewInt(tx.GasPrice().Int64() + 1))
if err := pool.addLocal(tx); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("Min tip not enforced")
}
if err := pool.Add([]*types.Transaction{tx}, true, false)[0]; !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("Min tip not enforced")
}
tx = dynamicFeeTx(0, 100000, big.NewInt(3), big.NewInt(2), key)
pool.SetGasTip(big.NewInt(tx.GasTipCap().Int64() + 1))
if err := pool.addLocal(tx); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("Min tip not enforced")
}
if err := pool.Add([]*types.Transaction{tx}, true, false)[0]; !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("Min tip not enforced")
}
// Make sure the tx is accepted if locals are enabled
pool.config.NoLocals = false
if err := pool.Add([]*types.Transaction{tx}, true, false)[0]; err != nil {
t.Fatalf("Min tip enforced with locals enabled, error: %v", err)
}
}
// Tests that setting the transaction pool gas price to a higher value correctly
// discards everything cheaper (legacy & dynamic fee) than that and moves any
// gapped transactions back from the pending pool to the queue.
//
// Note, local transactions are never allowed to be dropped.
func TestRepricingDynamicFee(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
pool, _ := setupPoolWithConfig(eip1559Config)
defer pool.Close()
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 4)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions, both pending and queued
txs := types.Transactions{}
txs = append(txs, pricedTransaction(0, 100000, big.NewInt(2), keys[0]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(1), keys[0]))
txs = append(txs, pricedTransaction(2, 100000, big.NewInt(2), keys[0]))
txs = append(txs, dynamicFeeTx(0, 100000, big.NewInt(2), big.NewInt(1), keys[1]))
txs = append(txs, dynamicFeeTx(1, 100000, big.NewInt(3), big.NewInt(2), keys[1]))
txs = append(txs, dynamicFeeTx(2, 100000, big.NewInt(3), big.NewInt(2), keys[1]))
txs = append(txs, dynamicFeeTx(1, 100000, big.NewInt(2), big.NewInt(2), keys[2]))
txs = append(txs, dynamicFeeTx(2, 100000, big.NewInt(1), big.NewInt(1), keys[2]))
txs = append(txs, dynamicFeeTx(3, 100000, big.NewInt(2), big.NewInt(2), keys[2]))
ltx := dynamicFeeTx(0, 100000, big.NewInt(2), big.NewInt(1), keys[3])
// Import the batch and that both pending and queued transactions match up
pool.addRemotesSync(txs)
pool.addLocal(ltx)
pending, queued := pool.Stats()
if pending != 7 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 7)
}
if queued != 3 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 3)
}
if err := validateEvents(events, 7); err != nil {
t.Fatalf("original event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Reprice the pool and check that underpriced transactions get dropped
pool.SetGasTip(big.NewInt(2))
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 5 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 5)
}
if err := validateEvents(events, 0); err != nil {
t.Fatalf("reprice event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Check that we can't add the old transactions back
tx := pricedTransaction(1, 100000, big.NewInt(1), keys[0])
if err := pool.addRemote(tx); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
tx = dynamicFeeTx(0, 100000, big.NewInt(2), big.NewInt(1), keys[1])
if err := pool.addRemote(tx); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
tx = dynamicFeeTx(2, 100000, big.NewInt(1), big.NewInt(1), keys[2])
if err := pool.addRemote(tx); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced queued transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
if err := validateEvents(events, 0); err != nil {
t.Fatalf("post-reprice event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// However we can add local underpriced transactions
tx = dynamicFeeTx(1, 100000, big.NewInt(1), big.NewInt(1), keys[3])
if err := pool.addLocal(tx); err != nil {
t.Fatalf("failed to add underpriced local transaction: %v", err)
}
if pending, _ = pool.Stats(); pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if err := validateEvents(events, 1); err != nil {
t.Fatalf("post-reprice local event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// And we can fill gaps with properly priced transactions
tx = pricedTransaction(1, 100000, big.NewInt(2), keys[0])
if err := pool.addRemote(tx); err != nil {
t.Fatalf("failed to add pending transaction: %v", err)
}
tx = dynamicFeeTx(0, 100000, big.NewInt(3), big.NewInt(2), keys[1])
if err := pool.addRemote(tx); err != nil {
t.Fatalf("failed to add pending transaction: %v", err)
}
tx = dynamicFeeTx(2, 100000, big.NewInt(2), big.NewInt(2), keys[2])
if err := pool.addRemoteSync(tx); err != nil {
t.Fatalf("failed to add queued transaction: %v", err)
}
if err := validateEvents(events, 5); err != nil {
t.Fatalf("post-reprice event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that setting the transaction pool gas price to a higher value does not
// remove local transactions (legacy & dynamic fee).
func TestRepricingKeepsLocals(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(eip1559Config, 1000000, statedb, new(event.Feed))
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 3)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(100000*1000000))
}
// Create transaction (both pending and queued) with a linearly growing gasprice
for i := uint64(0); i < 500; i++ {
// Add pending transaction.
pendingTx := pricedTransaction(i, 100000, big.NewInt(int64(i)), keys[2])
if err := pool.addLocal(pendingTx); err != nil {
t.Fatal(err)
}
// Add queued transaction.
queuedTx := pricedTransaction(i+501, 100000, big.NewInt(int64(i)), keys[2])
if err := pool.addLocal(queuedTx); err != nil {
t.Fatal(err)
}
// Add pending dynamic fee transaction.
pendingTx = dynamicFeeTx(i, 100000, big.NewInt(int64(i)+1), big.NewInt(int64(i)), keys[1])
if err := pool.addLocal(pendingTx); err != nil {
t.Fatal(err)
}
// Add queued dynamic fee transaction.
queuedTx = dynamicFeeTx(i+501, 100000, big.NewInt(int64(i)+1), big.NewInt(int64(i)), keys[1])
if err := pool.addLocal(queuedTx); err != nil {
t.Fatal(err)
}
}
pending, queued := pool.Stats()
expPending, expQueued := 1000, 1000
validate := func() {
pending, queued = pool.Stats()
if pending != expPending {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, expPending)
}
if queued != expQueued {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, expQueued)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
validate()
// Reprice the pool and check that nothing is dropped
pool.SetGasTip(big.NewInt(2))
validate()
pool.SetGasTip(big.NewInt(2))
pool.SetGasTip(big.NewInt(4))
pool.SetGasTip(big.NewInt(8))
pool.SetGasTip(big.NewInt(100))
validate()
}
// Tests that when the pool reaches its global transaction limit, underpriced
// transactions are gradually shifted out for more expensive ones and any gapped
// pending transactions are moved into the queue.
//
// Note, local transactions are never allowed to be dropped.
func TestUnderpricing(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.GlobalSlots = 2
config.GlobalQueue = 2
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions, both pending and queued
txs := types.Transactions{}
txs = append(txs, pricedTransaction(0, 100000, big.NewInt(1), keys[0]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(2), keys[0]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(1), keys[1]))
ltx := pricedTransaction(0, 100000, big.NewInt(1), keys[2])
// Import the batch and that both pending and queued transactions match up
pool.addRemotes(txs)
pool.addLocal(ltx)
pending, queued := pool.Stats()
if pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
if err := validateEvents(events, 3); err != nil {
t.Fatalf("original event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Ensure that adding an underpriced transaction on block limit fails
if err := pool.addRemoteSync(pricedTransaction(0, 100000, big.NewInt(1), keys[1])); !errors.Is(err, txpool.ErrUnderpriced) {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
// Replace a future transaction with a future transaction
if err := pool.addRemoteSync(pricedTransaction(1, 100000, big.NewInt(2), keys[1])); err != nil { // +K1:1 => -K1:1 => Pend K0:0, K0:1, K2:0; Que K1:1
t.Fatalf("failed to add well priced transaction: %v", err)
}
// Ensure that adding high priced transactions drops cheap ones, but not own
if err := pool.addRemoteSync(pricedTransaction(0, 100000, big.NewInt(3), keys[1])); err != nil { // +K1:0 => -K1:1 => Pend K0:0, K0:1, K1:0, K2:0; Que -
t.Fatalf("failed to add well priced transaction: %v", err)
}
if err := pool.addRemoteSync(pricedTransaction(2, 100000, big.NewInt(4), keys[1])); err != nil { // +K1:2 => -K0:0 => Pend K1:0, K2:0; Que K0:1 K1:2
t.Fatalf("failed to add well priced transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(3, 100000, big.NewInt(5), keys[1])); err != nil { // +K1:3 => -K0:1 => Pend K1:0, K2:0; Que K1:2 K1:3
t.Fatalf("failed to add well priced transaction: %v", err)
}
// Ensure that replacing a pending transaction with a future transaction fails
if err := pool.addRemote(pricedTransaction(5, 100000, big.NewInt(6), keys[1])); err != txpool.ErrFutureReplacePending {
t.Fatalf("adding future replace transaction error mismatch: have %v, want %v", err, txpool.ErrFutureReplacePending)
}
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("additional event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Ensure that adding local transactions can push out even higher priced ones
ltx = pricedTransaction(1, 100000, big.NewInt(0), keys[2])
if err := pool.addLocal(ltx); err != nil {
t.Fatalf("failed to append underpriced local transaction: %v", err)
}
ltx = pricedTransaction(0, 100000, big.NewInt(0), keys[3])
if err := pool.addLocal(ltx); err != nil {
t.Fatalf("failed to add new underpriced local transaction: %v", err)
}
pending, queued = pool.Stats()
if pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("local event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that more expensive transactions push out cheap ones from the pool, but
// without producing instability by creating gaps that start jumping transactions
// back and forth between queued/pending.
func TestStableUnderpricing(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.GlobalSlots = 128
config.GlobalQueue = 0
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 2)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Fill up the entire queue with the same transaction price points
txs := types.Transactions{}
for i := uint64(0); i < config.GlobalSlots; i++ {
txs = append(txs, pricedTransaction(i, 100000, big.NewInt(1), keys[0]))
}
pool.addRemotesSync(txs)
pending, queued := pool.Stats()
if pending != int(config.GlobalSlots) {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, config.GlobalSlots)
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validateEvents(events, int(config.GlobalSlots)); err != nil {
t.Fatalf("original event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Ensure that adding high priced transactions drops a cheap, but doesn't produce a gap
if err := pool.addRemoteSync(pricedTransaction(0, 100000, big.NewInt(3), keys[1])); err != nil {
t.Fatalf("failed to add well priced transaction: %v", err)
}
pending, queued = pool.Stats()
if pending != int(config.GlobalSlots) {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, config.GlobalSlots)
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validateEvents(events, 1); err != nil {
t.Fatalf("additional event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that when the pool reaches its global transaction limit, underpriced
// transactions (legacy & dynamic fee) are gradually shifted out for more
// expensive ones and any gapped pending transactions are moved into the queue.
//
// Note, local transactions are never allowed to be dropped.
func TestUnderpricingDynamicFee(t *testing.T) {
t.Parallel()
pool, _ := setupPoolWithConfig(eip1559Config)
defer pool.Close()
pool.config.GlobalSlots = 2
pool.config.GlobalQueue = 2
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 4)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions, both pending and queued
txs := types.Transactions{}
txs = append(txs, dynamicFeeTx(0, 100000, big.NewInt(3), big.NewInt(2), keys[0]))
txs = append(txs, pricedTransaction(1, 100000, big.NewInt(2), keys[0]))
txs = append(txs, dynamicFeeTx(1, 100000, big.NewInt(2), big.NewInt(1), keys[1]))
ltx := dynamicFeeTx(0, 100000, big.NewInt(2), big.NewInt(1), keys[2])
// Import the batch and that both pending and queued transactions match up
pool.addRemotes(txs) // Pend K0:0, K0:1; Que K1:1
pool.addLocal(ltx) // +K2:0 => Pend K0:0, K0:1, K2:0; Que K1:1
pending, queued := pool.Stats()
if pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
if err := validateEvents(events, 3); err != nil {
t.Fatalf("original event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Ensure that adding an underpriced transaction fails
tx := dynamicFeeTx(0, 100000, big.NewInt(2), big.NewInt(1), keys[1])
if err := pool.addRemote(tx); !errors.Is(err, txpool.ErrUnderpriced) { // Pend K0:0, K0:1, K2:0; Que K1:1
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, txpool.ErrUnderpriced)
}
// Ensure that adding high priced transactions drops cheap ones, but not own
tx = pricedTransaction(0, 100000, big.NewInt(2), keys[1])
if err := pool.addRemote(tx); err != nil { // +K1:0, -K1:1 => Pend K0:0, K0:1, K1:0, K2:0; Que -
t.Fatalf("failed to add well priced transaction: %v", err)
}
tx = pricedTransaction(1, 100000, big.NewInt(3), keys[1])
if err := pool.addRemoteSync(tx); err != nil { // +K1:2, -K0:1 => Pend K0:0 K1:0, K2:0; Que K1:2
t.Fatalf("failed to add well priced transaction: %v", err)
}
tx = dynamicFeeTx(2, 100000, big.NewInt(4), big.NewInt(1), keys[1])
if err := pool.addRemoteSync(tx); err != nil { // +K1:3, -K1:0 => Pend K0:0 K2:0; Que K1:2 K1:3
t.Fatalf("failed to add well priced transaction: %v", err)
}
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("additional event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Ensure that adding local transactions can push out even higher priced ones
ltx = dynamicFeeTx(1, 100000, big.NewInt(0), big.NewInt(0), keys[2])
if err := pool.addLocal(ltx); err != nil {
t.Fatalf("failed to append underpriced local transaction: %v", err)
}
ltx = dynamicFeeTx(0, 100000, big.NewInt(0), big.NewInt(0), keys[3])
if err := pool.addLocal(ltx); err != nil {
t.Fatalf("failed to add new underpriced local transaction: %v", err)
}
pending, queued = pool.Stats()
if pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("local event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests whether highest fee cap transaction is retained after a batch of high effective
// tip transactions are added and vice versa
func TestDualHeapEviction(t *testing.T) {
t.Parallel()
pool, _ := setupPoolWithConfig(eip1559Config)
defer pool.Close()
pool.config.GlobalSlots = 10
pool.config.GlobalQueue = 10
var (
highTip, highCap *types.Transaction
baseFee int
)
check := func(tx *types.Transaction, name string) {
if pool.all.GetRemote(tx.Hash()) == nil {
t.Fatalf("highest %s transaction evicted from the pool", name)
}
}
add := func(urgent bool) {
for i := 0; i < 20; i++ {
var tx *types.Transaction
// Create a test accounts and fund it
key, _ := crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1000000000000))
if urgent {
tx = dynamicFeeTx(0, 100000, big.NewInt(int64(baseFee+1+i)), big.NewInt(int64(1+i)), key)
highTip = tx
} else {
tx = dynamicFeeTx(0, 100000, big.NewInt(int64(baseFee+200+i)), big.NewInt(1), key)
highCap = tx
}
pool.addRemotesSync([]*types.Transaction{tx})
}
pending, queued := pool.Stats()
if pending+queued != 20 {
t.Fatalf("transaction count mismatch: have %d, want %d", pending+queued, 10)
}
}
add(false)
for baseFee = 0; baseFee <= 1000; baseFee += 100 {
pool.priced.SetBaseFee(big.NewInt(int64(baseFee)))
add(true)
check(highCap, "fee cap")
add(false)
check(highTip, "effective tip")
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that the pool rejects duplicate transactions.
func TestDeduplication(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create a test account to add transactions with
key, _ := crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1000000000))
// Create a batch of transactions and add a few of them
txs := make([]*types.Transaction, 16)
for i := 0; i < len(txs); i++ {
txs[i] = pricedTransaction(uint64(i), 100000, big.NewInt(1), key)
}
var firsts []*types.Transaction
for i := 0; i < len(txs); i += 2 {
firsts = append(firsts, txs[i])
}
errs := pool.addRemotesSync(firsts)
if len(errs) != len(firsts) {
t.Fatalf("first add mismatching result count: have %d, want %d", len(errs), len(firsts))
}
for i, err := range errs {
if err != nil {
t.Errorf("add %d failed: %v", i, err)
}
}
pending, queued := pool.Stats()
if pending != 1 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 1)
}
if queued != len(txs)/2-1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, len(txs)/2-1)
}
// Try to add all of them now and ensure previous ones error out as knowns
errs = pool.addRemotesSync(txs)
if len(errs) != len(txs) {
t.Fatalf("all add mismatching result count: have %d, want %d", len(errs), len(txs))
}
for i, err := range errs {
if i%2 == 0 && err == nil {
t.Errorf("add %d succeeded, should have failed as known", i)
}
if i%2 == 1 && err != nil {
t.Errorf("add %d failed: %v", i, err)
}
}
pending, queued = pool.Stats()
if pending != len(txs) {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, len(txs))
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that the pool rejects replacement transactions that don't meet the minimum
// price bump required.
func TestReplacement(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Create a test account to add transactions with
key, _ := crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1000000000))
// Add pending transactions, ensuring the minimum price bump is enforced for replacement (for ultra low prices too)
price := int64(100)
threshold := (price * (100 + int64(testTxPoolConfig.PriceBump))) / 100
if err := pool.addRemoteSync(pricedTransaction(0, 100000, big.NewInt(1), key)); err != nil {
t.Fatalf("failed to add original cheap pending transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(0, 100001, big.NewInt(1), key)); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original cheap pending transaction replacement error mismatch: have %v, want %v", err, txpool.ErrReplaceUnderpriced)
}
if err := pool.addRemote(pricedTransaction(0, 100000, big.NewInt(2), key)); err != nil {
t.Fatalf("failed to replace original cheap pending transaction: %v", err)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("cheap replacement event firing failed: %v", err)
}
if err := pool.addRemoteSync(pricedTransaction(0, 100000, big.NewInt(price), key)); err != nil {
t.Fatalf("failed to add original proper pending transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(0, 100001, big.NewInt(threshold-1), key)); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original proper pending transaction replacement error mismatch: have %v, want %v", err, txpool.ErrReplaceUnderpriced)
}
if err := pool.addRemote(pricedTransaction(0, 100000, big.NewInt(threshold), key)); err != nil {
t.Fatalf("failed to replace original proper pending transaction: %v", err)
}
if err := validateEvents(events, 2); err != nil {
t.Fatalf("proper replacement event firing failed: %v", err)
}
// Add queued transactions, ensuring the minimum price bump is enforced for replacement (for ultra low prices too)
if err := pool.addRemote(pricedTransaction(2, 100000, big.NewInt(1), key)); err != nil {
t.Fatalf("failed to add original cheap queued transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(2, 100001, big.NewInt(1), key)); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original cheap queued transaction replacement error mismatch: have %v, want %v", err, txpool.ErrReplaceUnderpriced)
}
if err := pool.addRemote(pricedTransaction(2, 100000, big.NewInt(2), key)); err != nil {
t.Fatalf("failed to replace original cheap queued transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(2, 100000, big.NewInt(price), key)); err != nil {
t.Fatalf("failed to add original proper queued transaction: %v", err)
}
if err := pool.addRemote(pricedTransaction(2, 100001, big.NewInt(threshold-1), key)); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original proper queued transaction replacement error mismatch: have %v, want %v", err, txpool.ErrReplaceUnderpriced)
}
if err := pool.addRemote(pricedTransaction(2, 100000, big.NewInt(threshold), key)); err != nil {
t.Fatalf("failed to replace original proper queued transaction: %v", err)
}
if err := validateEvents(events, 0); err != nil {
t.Fatalf("queued replacement event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that the pool rejects replacement dynamic fee transactions that don't
// meet the minimum price bump required.
func TestReplacementDynamicFee(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
pool, key := setupPoolWithConfig(eip1559Config)
defer pool.Close()
testAddBalance(pool, crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1000000000))
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, 32)
sub := pool.txFeed.Subscribe(events)
defer sub.Unsubscribe()
// Add pending transactions, ensuring the minimum price bump is enforced for replacement (for ultra low prices too)
gasFeeCap := int64(100)
feeCapThreshold := (gasFeeCap * (100 + int64(testTxPoolConfig.PriceBump))) / 100
gasTipCap := int64(60)
tipThreshold := (gasTipCap * (100 + int64(testTxPoolConfig.PriceBump))) / 100
// Run the following identical checks for both the pending and queue pools:
// 1. Send initial tx => accept
// 2. Don't bump tip or fee cap => discard
// 3. Bump both more than min => accept
// 4. Check events match expected (2 new executable txs during pending, 0 during queue)
// 5. Send new tx with larger tip and gasFeeCap => accept
// 6. Bump tip max allowed so it's still underpriced => discard
// 7. Bump fee cap max allowed so it's still underpriced => discard
// 8. Bump tip min for acceptance => discard
// 9. Bump feecap min for acceptance => discard
// 10. Bump feecap and tip min for acceptance => accept
// 11. Check events match expected (2 new executable txs during pending, 0 during queue)
stages := []string{"pending", "queued"}
for _, stage := range stages {
// Since state is empty, 0 nonce txs are "executable" and can go
// into pending immediately. 2 nonce txs are "gapped"
nonce := uint64(0)
if stage == "queued" {
nonce = 2
}
// 1. Send initial tx => accept
tx := dynamicFeeTx(nonce, 100000, big.NewInt(2), big.NewInt(1), key)
if err := pool.addRemoteSync(tx); err != nil {
t.Fatalf("failed to add original cheap %s transaction: %v", stage, err)
}
// 2. Don't bump tip or feecap => discard
tx = dynamicFeeTx(nonce, 100001, big.NewInt(2), big.NewInt(1), key)
if err := pool.addRemote(tx); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original cheap %s transaction replacement error mismatch: have %v, want %v", stage, err, txpool.ErrReplaceUnderpriced)
}
// 3. Bump both more than min => accept
tx = dynamicFeeTx(nonce, 100000, big.NewInt(3), big.NewInt(2), key)
if err := pool.addRemote(tx); err != nil {
t.Fatalf("failed to replace original cheap %s transaction: %v", stage, err)
}
// 4. Check events match expected (2 new executable txs during pending, 0 during queue)
count := 2
if stage == "queued" {
count = 0
}
if err := validateEvents(events, count); err != nil {
t.Fatalf("cheap %s replacement event firing failed: %v", stage, err)
}
// 5. Send new tx with larger tip and feeCap => accept
tx = dynamicFeeTx(nonce, 100000, big.NewInt(gasFeeCap), big.NewInt(gasTipCap), key)
if err := pool.addRemoteSync(tx); err != nil {
t.Fatalf("failed to add original proper %s transaction: %v", stage, err)
}
// 6. Bump tip max allowed so it's still underpriced => discard
tx = dynamicFeeTx(nonce, 100000, big.NewInt(gasFeeCap), big.NewInt(tipThreshold-1), key)
if err := pool.addRemote(tx); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original proper %s transaction replacement error mismatch: have %v, want %v", stage, err, txpool.ErrReplaceUnderpriced)
}
// 7. Bump fee cap max allowed so it's still underpriced => discard
tx = dynamicFeeTx(nonce, 100000, big.NewInt(feeCapThreshold-1), big.NewInt(gasTipCap), key)
if err := pool.addRemote(tx); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original proper %s transaction replacement error mismatch: have %v, want %v", stage, err, txpool.ErrReplaceUnderpriced)
}
// 8. Bump tip min for acceptance => accept
tx = dynamicFeeTx(nonce, 100000, big.NewInt(gasFeeCap), big.NewInt(tipThreshold), key)
if err := pool.addRemote(tx); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original proper %s transaction replacement error mismatch: have %v, want %v", stage, err, txpool.ErrReplaceUnderpriced)
}
// 9. Bump fee cap min for acceptance => accept
tx = dynamicFeeTx(nonce, 100000, big.NewInt(feeCapThreshold), big.NewInt(gasTipCap), key)
if err := pool.addRemote(tx); err != txpool.ErrReplaceUnderpriced {
t.Fatalf("original proper %s transaction replacement error mismatch: have %v, want %v", stage, err, txpool.ErrReplaceUnderpriced)
}
// 10. Check events match expected (3 new executable txs during pending, 0 during queue)
tx = dynamicFeeTx(nonce, 100000, big.NewInt(feeCapThreshold), big.NewInt(tipThreshold), key)
if err := pool.addRemote(tx); err != nil {
t.Fatalf("failed to replace original cheap %s transaction: %v", stage, err)
}
// 11. Check events match expected (3 new executable txs during pending, 0 during queue)
count = 2
if stage == "queued" {
count = 0
}
if err := validateEvents(events, count); err != nil {
t.Fatalf("replacement %s event firing failed: %v", stage, err)
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
}
// Tests that local transactions are journaled to disk, but remote transactions
// get discarded between restarts.
func TestJournaling(t *testing.T) { testJournaling(t, false) }
func TestJournalingNoLocals(t *testing.T) { testJournaling(t, true) }
func testJournaling(t *testing.T, nolocals bool) {
t.Parallel()
// Create a temporary file for the journal
file, err := os.CreateTemp("", "")
if err != nil {
t.Fatalf("failed to create temporary journal: %v", err)
}
journal := file.Name()
defer os.Remove(journal)
// Clean up the temporary file, we only need the path for now
file.Close()
os.Remove(journal)
// Create the original pool to inject transaction into the journal
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
config := testTxPoolConfig
config.NoLocals = nolocals
config.Journal = journal
config.Rejournal = time.Second
pool := New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
// Create two test accounts to ensure remotes expire but locals do not
local, _ := crypto.GenerateKey()
remote, _ := crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(local.PublicKey), big.NewInt(1000000000))
testAddBalance(pool, crypto.PubkeyToAddress(remote.PublicKey), big.NewInt(1000000000))
// Add three local and a remote transactions and ensure they are queued up
if err := pool.addLocal(pricedTransaction(0, 100000, big.NewInt(1), local)); err != nil {
t.Fatalf("failed to add local transaction: %v", err)
}
if err := pool.addLocal(pricedTransaction(1, 100000, big.NewInt(1), local)); err != nil {
t.Fatalf("failed to add local transaction: %v", err)
}
if err := pool.addLocal(pricedTransaction(2, 100000, big.NewInt(1), local)); err != nil {
t.Fatalf("failed to add local transaction: %v", err)
}
if err := pool.addRemoteSync(pricedTransaction(0, 100000, big.NewInt(1), remote)); err != nil {
t.Fatalf("failed to add remote transaction: %v", err)
}
pending, queued := pool.Stats()
if pending != 4 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 4)
}
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Terminate the old pool, bump the local nonce, create a new pool and ensure relevant transaction survive
pool.Close()
statedb.SetNonce(crypto.PubkeyToAddress(local.PublicKey), 1)
blockchain = newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool = New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
pending, queued = pool.Stats()
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
if nolocals {
if pending != 0 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 0)
}
} else {
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Bump the nonce temporarily and ensure the newly invalidated transaction is removed
statedb.SetNonce(crypto.PubkeyToAddress(local.PublicKey), 2)
<-pool.requestReset(nil, nil)
time.Sleep(2 * config.Rejournal)
pool.Close()
statedb.SetNonce(crypto.PubkeyToAddress(local.PublicKey), 1)
blockchain = newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool = New(config, blockchain)
pool.Init(new(big.Int).SetUint64(config.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
pending, queued = pool.Stats()
if pending != 0 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 0)
}
if nolocals {
if queued != 0 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 0)
}
} else {
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
pool.Close()
}
// TestStatusCheck tests that the pool can correctly retrieve the
// pending status of individual transactions.
func TestStatusCheck(t *testing.T) {
t.Parallel()
// Create the pool to test the status retrievals with
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := newTestBlockChain(params.TestChainConfig, 1000000, statedb, new(event.Feed))
pool := New(testTxPoolConfig, blockchain)
pool.Init(new(big.Int).SetUint64(testTxPoolConfig.PriceLimit), blockchain.CurrentBlock(), makeAddressReserver())
defer pool.Close()
// Create the test accounts to check various transaction statuses with
keys := make([]*ecdsa.PrivateKey, 3)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
}
// Generate and queue a batch of transactions, both pending and queued
txs := types.Transactions{}
txs = append(txs, pricedTransaction(0, 100000, big.NewInt(1), keys[0])) // Pending only
txs = append(txs, pricedTransaction(0, 100000, big.NewInt(1), keys[1])) // Pending and queued
txs = append(txs, pricedTransaction(2, 100000, big.NewInt(1), keys[1]))
txs = append(txs, pricedTransaction(2, 100000, big.NewInt(1), keys[2])) // Queued only
// Import the transaction and ensure they are correctly added
pool.addRemotesSync(txs)
pending, queued := pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
}
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
// Retrieve the status of each transaction and validate them
hashes := make([]common.Hash, len(txs))
for i, tx := range txs {
hashes[i] = tx.Hash()
}
hashes = append(hashes, common.Hash{})
expect := []txpool.TxStatus{txpool.TxStatusPending, txpool.TxStatusPending, txpool.TxStatusQueued, txpool.TxStatusQueued, txpool.TxStatusUnknown}
for i := 0; i < len(hashes); i++ {
if status := pool.Status(hashes[i]); status != expect[i] {
t.Errorf("transaction %d: status mismatch: have %v, want %v", i, status, expect[i])
}
}
}
// Test the transaction slots consumption is computed correctly
func TestSlotCount(t *testing.T) {
t.Parallel()
key, _ := crypto.GenerateKey()
// Check that an empty transaction consumes a single slot
smallTx := pricedDataTransaction(0, 0, big.NewInt(0), key, 0)
if slots := numSlots(smallTx); slots != 1 {
t.Fatalf("small transactions slot count mismatch: have %d want %d", slots, 1)
}
// Check that a large transaction consumes the correct number of slots
bigTx := pricedDataTransaction(0, 0, big.NewInt(0), key, uint64(10*txSlotSize))
if slots := numSlots(bigTx); slots != 11 {
t.Fatalf("big transactions slot count mismatch: have %d want %d", slots, 11)
}
}
// Benchmarks the speed of validating the contents of the pending queue of the
// transaction pool.
func BenchmarkPendingDemotion100(b *testing.B) { benchmarkPendingDemotion(b, 100) }
func BenchmarkPendingDemotion1000(b *testing.B) { benchmarkPendingDemotion(b, 1000) }
func BenchmarkPendingDemotion10000(b *testing.B) { benchmarkPendingDemotion(b, 10000) }
func benchmarkPendingDemotion(b *testing.B, size int) {
// Add a batch of transactions to a pool one by one
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000))
for i := 0; i < size; i++ {
tx := transaction(uint64(i), 100000, key)
pool.promoteTx(account, tx.Hash(), tx)
}
// Benchmark the speed of pool validation
b.ResetTimer()
for i := 0; i < b.N; i++ {
pool.demoteUnexecutables()
}
}
// Benchmarks the speed of scheduling the contents of the future queue of the
// transaction pool.
func BenchmarkFuturePromotion100(b *testing.B) { benchmarkFuturePromotion(b, 100) }
func BenchmarkFuturePromotion1000(b *testing.B) { benchmarkFuturePromotion(b, 1000) }
func BenchmarkFuturePromotion10000(b *testing.B) { benchmarkFuturePromotion(b, 10000) }
func benchmarkFuturePromotion(b *testing.B, size int) {
// Add a batch of transactions to a pool one by one
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000))
for i := 0; i < size; i++ {
tx := transaction(uint64(1+i), 100000, key)
pool.enqueueTx(tx.Hash(), tx, false, true)
}
// Benchmark the speed of pool validation
b.ResetTimer()
for i := 0; i < b.N; i++ {
pool.promoteExecutables(nil)
}
}
// Benchmarks the speed of batched transaction insertion.
func BenchmarkBatchInsert100(b *testing.B) { benchmarkBatchInsert(b, 100, false) }
func BenchmarkBatchInsert1000(b *testing.B) { benchmarkBatchInsert(b, 1000, false) }
func BenchmarkBatchInsert10000(b *testing.B) { benchmarkBatchInsert(b, 10000, false) }
func BenchmarkBatchLocalInsert100(b *testing.B) { benchmarkBatchInsert(b, 100, true) }
func BenchmarkBatchLocalInsert1000(b *testing.B) { benchmarkBatchInsert(b, 1000, true) }
func BenchmarkBatchLocalInsert10000(b *testing.B) { benchmarkBatchInsert(b, 10000, true) }
func benchmarkBatchInsert(b *testing.B, size int, local bool) {
// Generate a batch of transactions to enqueue into the pool
pool, key := setupPool()
defer pool.Close()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000000000000000))
batches := make([]types.Transactions, b.N)
for i := 0; i < b.N; i++ {
batches[i] = make(types.Transactions, size)
for j := 0; j < size; j++ {
batches[i][j] = transaction(uint64(size*i+j), 100000, key)
}
}
// Benchmark importing the transactions into the queue
b.ResetTimer()
for _, batch := range batches {
if local {
pool.addLocals(batch)
} else {
pool.addRemotes(batch)
}
}
}
func BenchmarkInsertRemoteWithAllLocals(b *testing.B) {
// Allocate keys for testing
key, _ := crypto.GenerateKey()
account := crypto.PubkeyToAddress(key.PublicKey)
remoteKey, _ := crypto.GenerateKey()
remoteAddr := crypto.PubkeyToAddress(remoteKey.PublicKey)
locals := make([]*types.Transaction, 4096+1024) // Occupy all slots
for i := 0; i < len(locals); i++ {
locals[i] = transaction(uint64(i), 100000, key)
}
remotes := make([]*types.Transaction, 1000)
for i := 0; i < len(remotes); i++ {
remotes[i] = pricedTransaction(uint64(i), 100000, big.NewInt(2), remoteKey) // Higher gasprice
}
// Benchmark importing the transactions into the queue
b.ResetTimer()
for i := 0; i < b.N; i++ {
b.StopTimer()
pool, _ := setupPool()
testAddBalance(pool, account, big.NewInt(100000000))
for _, local := range locals {
pool.addLocal(local)
}
b.StartTimer()
// Assign a high enough balance for testing
testAddBalance(pool, remoteAddr, big.NewInt(100000000))
for i := 0; i < len(remotes); i++ {
pool.addRemotes([]*types.Transaction{remotes[i]})
}
pool.Close()
}
}
// Benchmarks the speed of batch transaction insertion in case of multiple accounts.
func BenchmarkMultiAccountBatchInsert(b *testing.B) {
// Generate a batch of transactions to enqueue into the pool
pool, _ := setupPool()
defer pool.Close()
b.ReportAllocs()
batches := make(types.Transactions, b.N)
for i := 0; i < b.N; i++ {
key, _ := crypto.GenerateKey()
account := crypto.PubkeyToAddress(key.PublicKey)
pool.currentState.AddBalance(account, big.NewInt(1000000))
tx := transaction(uint64(0), 100000, key)
batches[i] = tx
}
// Benchmark importing the transactions into the queue
b.ResetTimer()
for _, tx := range batches {
pool.addRemotesSync([]*types.Transaction{tx})
}
}