Official Go implementation of the Ethereum protocol
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go-ethereum/miner/ordering_test.go

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6.5 KiB

// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package miner
import (
"crypto/ecdsa"
"math/big"
"math/rand"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/txpool"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
)
func TestTransactionPriceNonceSortLegacy(t *testing.T) {
t.Parallel()
testTransactionPriceNonceSort(t, nil)
}
func TestTransactionPriceNonceSort1559(t *testing.T) {
t.Parallel()
testTransactionPriceNonceSort(t, big.NewInt(0))
testTransactionPriceNonceSort(t, big.NewInt(5))
testTransactionPriceNonceSort(t, big.NewInt(50))
}
// Tests that transactions can be correctly sorted according to their price in
// decreasing order, but at the same time with increasing nonces when issued by
// the same account.
func testTransactionPriceNonceSort(t *testing.T, baseFee *big.Int) {
// Generate a batch of accounts to start with
keys := make([]*ecdsa.PrivateKey, 25)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
signer := types.LatestSignerForChainID(common.Big1)
// Generate a batch of transactions with overlapping values, but shifted nonces
groups := map[common.Address][]*txpool.LazyTransaction{}
expectedCount := 0
for start, key := range keys {
addr := crypto.PubkeyToAddress(key.PublicKey)
count := 25
for i := 0; i < 25; i++ {
var tx *types.Transaction
gasFeeCap := rand.Intn(50)
if baseFee == nil {
tx = types.NewTx(&types.LegacyTx{
Nonce: uint64(start + i),
To: &common.Address{},
Value: big.NewInt(100),
Gas: 100,
GasPrice: big.NewInt(int64(gasFeeCap)),
Data: nil,
})
} else {
tx = types.NewTx(&types.DynamicFeeTx{
Nonce: uint64(start + i),
To: &common.Address{},
Value: big.NewInt(100),
Gas: 100,
GasFeeCap: big.NewInt(int64(gasFeeCap)),
GasTipCap: big.NewInt(int64(rand.Intn(gasFeeCap + 1))),
Data: nil,
})
if count == 25 && int64(gasFeeCap) < baseFee.Int64() {
count = i
}
}
tx, err := types.SignTx(tx, signer, key)
if err != nil {
t.Fatalf("failed to sign tx: %s", err)
}
groups[addr] = append(groups[addr], &txpool.LazyTransaction{
Hash: tx.Hash(),
Tx: tx,
Time: tx.Time(),
GasFeeCap: tx.GasFeeCap(),
GasTipCap: tx.GasTipCap(),
Gas: tx.Gas(),
BlobGas: tx.BlobGas(),
})
}
expectedCount += count
}
// Sort the transactions and cross check the nonce ordering
txset := newTransactionsByPriceAndNonce(signer, groups, baseFee)
txs := types.Transactions{}
for tx := txset.Peek(); tx != nil; tx = txset.Peek() {
txs = append(txs, tx.Tx)
txset.Shift()
}
if len(txs) != expectedCount {
t.Errorf("expected %d transactions, found %d", expectedCount, len(txs))
}
for i, txi := range txs {
fromi, _ := types.Sender(signer, txi)
// Make sure the nonce order is valid
for j, txj := range txs[i+1:] {
fromj, _ := types.Sender(signer, txj)
if fromi == fromj && txi.Nonce() > txj.Nonce() {
t.Errorf("invalid nonce ordering: tx #%d (A=%x N=%v) < tx #%d (A=%x N=%v)", i, fromi[:4], txi.Nonce(), i+j, fromj[:4], txj.Nonce())
}
}
// If the next tx has different from account, the price must be lower than the current one
if i+1 < len(txs) {
next := txs[i+1]
fromNext, _ := types.Sender(signer, next)
tip, err := txi.EffectiveGasTip(baseFee)
nextTip, nextErr := next.EffectiveGasTip(baseFee)
if err != nil || nextErr != nil {
t.Errorf("error calculating effective tip: %v, %v", err, nextErr)
}
if fromi != fromNext && tip.Cmp(nextTip) < 0 {
t.Errorf("invalid gasprice ordering: tx #%d (A=%x P=%v) < tx #%d (A=%x P=%v)", i, fromi[:4], txi.GasPrice(), i+1, fromNext[:4], next.GasPrice())
}
}
}
}
// Tests that if multiple transactions have the same price, the ones seen earlier
// are prioritized to avoid network spam attacks aiming for a specific ordering.
func TestTransactionTimeSort(t *testing.T) {
t.Parallel()
// Generate a batch of accounts to start with
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
signer := types.HomesteadSigner{}
// Generate a batch of transactions with overlapping prices, but different creation times
groups := map[common.Address][]*txpool.LazyTransaction{}
for start, key := range keys {
addr := crypto.PubkeyToAddress(key.PublicKey)
tx, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), 100, big.NewInt(1), nil), signer, key)
tx.SetTime(time.Unix(0, int64(len(keys)-start)))
groups[addr] = append(groups[addr], &txpool.LazyTransaction{
Hash: tx.Hash(),
Tx: tx,
Time: tx.Time(),
GasFeeCap: tx.GasFeeCap(),
GasTipCap: tx.GasTipCap(),
Gas: tx.Gas(),
BlobGas: tx.BlobGas(),
})
}
// Sort the transactions and cross check the nonce ordering
txset := newTransactionsByPriceAndNonce(signer, groups, nil)
txs := types.Transactions{}
for tx := txset.Peek(); tx != nil; tx = txset.Peek() {
txs = append(txs, tx.Tx)
txset.Shift()
}
if len(txs) != len(keys) {
t.Errorf("expected %d transactions, found %d", len(keys), len(txs))
}
for i, txi := range txs {
fromi, _ := types.Sender(signer, txi)
if i+1 < len(txs) {
next := txs[i+1]
fromNext, _ := types.Sender(signer, next)
if txi.GasPrice().Cmp(next.GasPrice()) < 0 {
t.Errorf("invalid gasprice ordering: tx #%d (A=%x P=%v) < tx #%d (A=%x P=%v)", i, fromi[:4], txi.GasPrice(), i+1, fromNext[:4], next.GasPrice())
}
// Make sure time order is ascending if the txs have the same gas price
if txi.GasPrice().Cmp(next.GasPrice()) == 0 && txi.Time().After(next.Time()) {
t.Errorf("invalid received time ordering: tx #%d (A=%x T=%v) > tx #%d (A=%x T=%v)", i, fromi[:4], txi.Time(), i+1, fromNext[:4], next.Time())
}
}
}
}