319 lines
9.1 KiB
Go
319 lines
9.1 KiB
Go
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// Copyright 2020 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package fetcher
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import (
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"crypto/ecdsa"
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"math/big"
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"math/rand"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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)
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func init() {
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rand.Seed(int64(time.Now().Nanosecond()))
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txAnnounceLimit = 64
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MaxTransactionFetch = 16
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}
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func makeTransactions(key *ecdsa.PrivateKey, target int) []*types.Transaction {
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var txs []*types.Transaction
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for i := 0; i < target; i++ {
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random := rand.Uint32()
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tx := types.NewTransaction(uint64(random), common.Address{0x1, 0x2, 0x3}, big.NewInt(int64(random)), 100, big.NewInt(int64(random)), nil)
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tx, _ = types.SignTx(tx, types.NewEIP155Signer(big.NewInt(1)), key)
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txs = append(txs, tx)
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}
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return txs
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}
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func makeUnsignedTransactions(key *ecdsa.PrivateKey, target int) []*types.Transaction {
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var txs []*types.Transaction
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for i := 0; i < target; i++ {
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random := rand.Uint32()
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tx := types.NewTransaction(uint64(random), common.Address{0x1, 0x2, 0x3}, big.NewInt(int64(random)), 100, big.NewInt(int64(random)), nil)
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txs = append(txs, tx)
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}
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return txs
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}
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type txfetcherTester struct {
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fetcher *TxFetcher
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priceLimit *big.Int
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sender *ecdsa.PrivateKey
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senderAddr common.Address
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signer types.Signer
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txs map[common.Hash]*types.Transaction
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dropped map[string]struct{}
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lock sync.RWMutex
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}
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func newTxFetcherTester() *txfetcherTester {
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key, _ := crypto.GenerateKey()
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addr := crypto.PubkeyToAddress(key.PublicKey)
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t := &txfetcherTester{
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sender: key,
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senderAddr: addr,
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signer: types.NewEIP155Signer(big.NewInt(1)),
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txs: make(map[common.Hash]*types.Transaction),
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dropped: make(map[string]struct{}),
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}
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t.fetcher = NewTxFetcher(t.hasTx, t.addTxs, t.dropPeer)
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t.fetcher.Start()
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return t
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}
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func (t *txfetcherTester) hasTx(hash common.Hash) bool {
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t.lock.RLock()
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defer t.lock.RUnlock()
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return t.txs[hash] != nil
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}
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func (t *txfetcherTester) addTxs(txs []*types.Transaction) []error {
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t.lock.Lock()
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defer t.lock.Unlock()
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var errors []error
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for _, tx := range txs {
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// Make sure the transaction is signed properly
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_, err := types.Sender(t.signer, tx)
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if err != nil {
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errors = append(errors, core.ErrInvalidSender)
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continue
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}
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// Make sure the price is high enough to accpet
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if t.priceLimit != nil && tx.GasPrice().Cmp(t.priceLimit) < 0 {
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errors = append(errors, core.ErrUnderpriced)
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continue
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}
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t.txs[tx.Hash()] = tx
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errors = append(errors, nil)
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}
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return errors
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}
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func (t *txfetcherTester) dropPeer(id string) {
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t.lock.Lock()
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defer t.lock.Unlock()
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t.dropped[id] = struct{}{}
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}
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// makeTxFetcher retrieves a batch of transaction associated with a simulated peer.
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func (t *txfetcherTester) makeTxFetcher(peer string, txs []*types.Transaction) func(hashes []common.Hash) {
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closure := make(map[common.Hash]*types.Transaction)
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for _, tx := range txs {
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closure[tx.Hash()] = tx
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}
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return func(hashes []common.Hash) {
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var txs []*types.Transaction
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for _, hash := range hashes {
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tx := closure[hash]
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if tx == nil {
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continue
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}
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txs = append(txs, tx)
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}
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// Return on a new thread
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go t.fetcher.EnqueueTxs(peer, txs)
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}
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}
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func TestSequentialTxAnnouncements(t *testing.T) {
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tester := newTxFetcherTester()
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txs := makeTransactions(tester.sender, txAnnounceLimit)
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retrieveTxs := tester.makeTxFetcher("peer", txs)
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newTxsCh := make(chan struct{})
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tester.fetcher.importTxsHook = func(transactions []*types.Transaction) {
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newTxsCh <- struct{}{}
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}
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for _, tx := range txs {
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tester.fetcher.Notify("peer", []common.Hash{tx.Hash()}, time.Now().Add(-arriveTimeout), retrieveTxs)
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select {
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case <-newTxsCh:
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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if len(tester.txs) != len(txs) {
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t.Fatalf("Imported transaction number mismatch, want %d, got %d", len(txs), len(tester.txs))
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}
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}
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func TestConcurrentAnnouncements(t *testing.T) {
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tester := newTxFetcherTester()
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txs := makeTransactions(tester.sender, txAnnounceLimit)
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txFetcherFn1 := tester.makeTxFetcher("peer1", txs)
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txFetcherFn2 := tester.makeTxFetcher("peer2", txs)
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var (
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count uint32
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done = make(chan struct{})
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)
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tester.fetcher.importTxsHook = func(transactions []*types.Transaction) {
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atomic.AddUint32(&count, uint32(len(transactions)))
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if atomic.LoadUint32(&count) >= uint32(txAnnounceLimit) {
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done <- struct{}{}
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}
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}
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for _, tx := range txs {
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tester.fetcher.Notify("peer1", []common.Hash{tx.Hash()}, time.Now().Add(-arriveTimeout), txFetcherFn1)
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tester.fetcher.Notify("peer2", []common.Hash{tx.Hash()}, time.Now().Add(-arriveTimeout+time.Millisecond), txFetcherFn2)
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tester.fetcher.Notify("peer2", []common.Hash{tx.Hash()}, time.Now().Add(-arriveTimeout-time.Millisecond), txFetcherFn2)
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}
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select {
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case <-done:
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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func TestBatchAnnouncements(t *testing.T) {
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tester := newTxFetcherTester()
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txs := makeTransactions(tester.sender, txAnnounceLimit)
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retrieveTxs := tester.makeTxFetcher("peer", txs)
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var count uint32
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var done = make(chan struct{})
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tester.fetcher.importTxsHook = func(txs []*types.Transaction) {
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atomic.AddUint32(&count, uint32(len(txs)))
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if atomic.LoadUint32(&count) >= uint32(txAnnounceLimit) {
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done <- struct{}{}
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}
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}
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// Send all announces which exceeds the limit.
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var hashes []common.Hash
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for _, tx := range txs {
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hashes = append(hashes, tx.Hash())
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}
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tester.fetcher.Notify("peer", hashes, time.Now(), retrieveTxs)
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select {
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case <-done:
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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func TestPropagationAfterAnnounce(t *testing.T) {
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tester := newTxFetcherTester()
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txs := makeTransactions(tester.sender, txAnnounceLimit)
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var cleaned = make(chan struct{})
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tester.fetcher.cleanupHook = func(hashes []common.Hash) {
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cleaned <- struct{}{}
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}
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retrieveTxs := tester.makeTxFetcher("peer", txs)
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for _, tx := range txs {
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tester.fetcher.Notify("peer", []common.Hash{tx.Hash()}, time.Now(), retrieveTxs)
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tester.fetcher.EnqueueTxs("peer", []*types.Transaction{tx})
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// It's ok to read the map directly since no write
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// will happen in the same time.
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<-cleaned
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if len(tester.fetcher.announced) != 0 {
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t.Fatalf("Announcement should be cleaned, got %d", len(tester.fetcher.announced))
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}
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}
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}
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func TestEnqueueTransactions(t *testing.T) {
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tester := newTxFetcherTester()
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txs := makeTransactions(tester.sender, txAnnounceLimit)
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done := make(chan struct{})
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tester.fetcher.importTxsHook = func(transactions []*types.Transaction) {
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if len(transactions) == txAnnounceLimit {
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done <- struct{}{}
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}
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}
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go tester.fetcher.EnqueueTxs("peer", txs)
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select {
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case <-done:
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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func TestInvalidTxAnnounces(t *testing.T) {
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tester := newTxFetcherTester()
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var txs []*types.Transaction
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txs = append(txs, makeUnsignedTransactions(tester.sender, 1)...)
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txs = append(txs, makeTransactions(tester.sender, 1)...)
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txFetcherFn := tester.makeTxFetcher("peer", txs)
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dropped := make(chan string, 1)
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tester.fetcher.dropHook = func(s string) { dropped <- s }
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for _, tx := range txs {
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tester.fetcher.Notify("peer", []common.Hash{tx.Hash()}, time.Now(), txFetcherFn)
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}
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select {
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case s := <-dropped:
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if s != "peer" {
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t.Fatalf("invalid dropped peer")
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}
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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func TestRejectUnderpriced(t *testing.T) {
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tester := newTxFetcherTester()
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tester.priceLimit = big.NewInt(10000)
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done := make(chan struct{})
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tester.fetcher.importTxsHook = func([]*types.Transaction) { done <- struct{}{} }
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reject := make(chan struct{})
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tester.fetcher.rejectUnderprice = func(common.Hash) { reject <- struct{}{} }
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tx := types.NewTransaction(0, common.Address{0x1, 0x2, 0x3}, big.NewInt(int64(100)), 100, big.NewInt(int64(100)), nil)
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tx, _ = types.SignTx(tx, types.NewEIP155Signer(big.NewInt(1)), tester.sender)
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txFetcherFn := tester.makeTxFetcher("peer", []*types.Transaction{tx})
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// Send the announcement first time
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tester.fetcher.Notify("peer", []common.Hash{tx.Hash()}, time.Now().Add(-arriveTimeout), txFetcherFn)
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<-done
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// Resend the announcement, shouldn't schedule fetching this time
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tester.fetcher.Notify("peer", []common.Hash{tx.Hash()}, time.Now().Add(-arriveTimeout), txFetcherFn)
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select {
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case <-reject:
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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