github.com/theQRL/go-zond@v0.1.1/zond/catalyst/simulated_beacon_test.go (about)

     1  // Copyright 2023 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package catalyst
    18  
    19  import (
    20  	"context"
    21  	"math/big"
    22  	"testing"
    23  	"time"
    24  
    25  	"github.com/theQRL/go-zond/common"
    26  	"github.com/theQRL/go-zond/core"
    27  	"github.com/theQRL/go-zond/core/types"
    28  	"github.com/theQRL/go-zond/crypto"
    29  	"github.com/theQRL/go-zond/zond"
    30  	"github.com/theQRL/go-zond/zond/downloader"
    31  	"github.com/theQRL/go-zond/zond/ethconfig"
    32  	"github.com/theQRL/go-zond/node"
    33  	"github.com/theQRL/go-zond/p2p"
    34  	"github.com/theQRL/go-zond/params"
    35  )
    36  
    37  func startSimulatedBeaconEthService(t *testing.T, genesis *core.Genesis) (*node.Node, *eth.Ethereum, *SimulatedBeacon) {
    38  	t.Helper()
    39  
    40  	n, err := node.New(&node.Config{
    41  		P2P: p2p.Config{
    42  			ListenAddr:  "127.0.0.1:8545",
    43  			NoDiscovery: true,
    44  			MaxPeers:    0,
    45  		},
    46  	})
    47  	if err != nil {
    48  		t.Fatal("can't create node:", err)
    49  	}
    50  
    51  	ethcfg := &ethconfig.Config{Genesis: genesis, SyncMode: downloader.FullSync, TrieTimeout: time.Minute, TrieDirtyCache: 256, TrieCleanCache: 256}
    52  	ethservice, err := eth.New(n, ethcfg)
    53  	if err != nil {
    54  		t.Fatal("can't create eth service:", err)
    55  	}
    56  
    57  	simBeacon, err := NewSimulatedBeacon(1, ethservice)
    58  	if err != nil {
    59  		t.Fatal("can't create simulated beacon:", err)
    60  	}
    61  
    62  	n.RegisterLifecycle(simBeacon)
    63  
    64  	if err := n.Start(); err != nil {
    65  		t.Fatal("can't start node:", err)
    66  	}
    67  
    68  	ethservice.SetSynced()
    69  	return n, ethservice, simBeacon
    70  }
    71  
    72  // send 20 transactions, >10 withdrawals and ensure they are included in order
    73  // send enough transactions to fill multiple blocks
    74  func TestSimulatedBeaconSendWithdrawals(t *testing.T) {
    75  	var withdrawals []types.Withdrawal
    76  	txs := make(map[common.Hash]types.Transaction)
    77  
    78  	var (
    79  		// testKey is a private key to use for funding a tester account.
    80  		testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
    81  
    82  		// testAddr is the Ethereum address of the tester account.
    83  		testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
    84  	)
    85  
    86  	// short period (1 second) for testing purposes
    87  	var gasLimit uint64 = 10_000_000
    88  	genesis := core.DeveloperGenesisBlock(gasLimit, testAddr)
    89  	node, ethService, mock := startSimulatedBeaconEthService(t, genesis)
    90  	_ = mock
    91  	defer node.Close()
    92  
    93  	chainHeadCh := make(chan core.ChainHeadEvent, 10)
    94  	subscription := ethService.BlockChain().SubscribeChainHeadEvent(chainHeadCh)
    95  	defer subscription.Unsubscribe()
    96  
    97  	// generate some withdrawals
    98  	for i := 0; i < 20; i++ {
    99  		withdrawals = append(withdrawals, types.Withdrawal{Index: uint64(i)})
   100  		if err := mock.withdrawals.add(&withdrawals[i]); err != nil {
   101  			t.Fatal("addWithdrawal failed", err)
   102  		}
   103  	}
   104  
   105  	// generate a bunch of transactions
   106  	signer := types.NewEIP155Signer(ethService.BlockChain().Config().ChainID)
   107  	for i := 0; i < 20; i++ {
   108  		tx, err := types.SignTx(types.NewTransaction(uint64(i), common.Address{}, big.NewInt(1000), params.TxGas, big.NewInt(params.InitialBaseFee), nil), signer, testKey)
   109  		if err != nil {
   110  			t.Fatalf("error signing transaction, err=%v", err)
   111  		}
   112  		txs[tx.Hash()] = *tx
   113  
   114  		if err := ethService.APIBackend.SendTx(context.Background(), tx); err != nil {
   115  			t.Fatal("SendTx failed", err)
   116  		}
   117  	}
   118  
   119  	includedTxs := make(map[common.Hash]struct{})
   120  	var includedWithdrawals []uint64
   121  
   122  	timer := time.NewTimer(12 * time.Second)
   123  	for {
   124  		select {
   125  		case evt := <-chainHeadCh:
   126  			for _, includedTx := range evt.Block.Transactions() {
   127  				includedTxs[includedTx.Hash()] = struct{}{}
   128  			}
   129  			for _, includedWithdrawal := range evt.Block.Withdrawals() {
   130  				includedWithdrawals = append(includedWithdrawals, includedWithdrawal.Index)
   131  			}
   132  
   133  			// ensure all withdrawals/txs included. this will take two blocks b/c number of withdrawals > 10
   134  			if len(includedTxs) == len(txs) && len(includedWithdrawals) == len(withdrawals) && evt.Block.Number().Cmp(big.NewInt(2)) == 0 {
   135  				return
   136  			}
   137  		case <-timer.C:
   138  			t.Fatal("timed out without including all withdrawals/txs")
   139  		}
   140  	}
   141  }