github.com/iotexproject/iotex-core@v1.14.1-rc1/e2etest/rewarding_test.go

package e2etest

import (
	"context"
	"fmt"
	"math/big"
	"math/rand"
	"os"
	"strconv"
	"sync"
	"testing"
	"time"

	"github.com/cenkalti/backoff"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"go.uber.org/zap"
	"google.golang.org/grpc"

	"github.com/iotexproject/go-pkgs/crypto"
	"github.com/iotexproject/go-pkgs/hash"
	"github.com/iotexproject/iotex-proto/golang/iotexapi"
	"github.com/iotexproject/iotex-proto/golang/iotextypes"

	"github.com/iotexproject/iotex-core/action"
	"github.com/iotexproject/iotex-core/action/protocol"
	accountutil "github.com/iotexproject/iotex-core/action/protocol/account/util"
	"github.com/iotexproject/iotex-core/action/protocol/rewarding"
	"github.com/iotexproject/iotex-core/api"
	"github.com/iotexproject/iotex-core/blockchain"
	"github.com/iotexproject/iotex-core/blockchain/genesis"
	"github.com/iotexproject/iotex-core/config"
	"github.com/iotexproject/iotex-core/pkg/log"
	"github.com/iotexproject/iotex-core/pkg/probe"
	"github.com/iotexproject/iotex-core/pkg/util/fileutil"
	"github.com/iotexproject/iotex-core/server/itx"
	"github.com/iotexproject/iotex-core/state/factory"
	"github.com/iotexproject/iotex-core/test/identityset"
	"github.com/iotexproject/iotex-core/testutil"
	"github.com/iotexproject/iotex-core/tools/util"
)

type claimTestCaseID int

const (
	//To claim amount 0
	caseClaimZero claimTestCaseID = iota
	//To claim all unclaimed balance
	caseClaimAll
	//To claim more than unclaimed balance
	caseClaimMoreThanBalance
	//To claim only part of available balance
	caseClaimPartOfBalance
	//To claim a negative amount
	caseClaimNegative
	//To claim with an operator address other than the rewarding address
	caseClaimToNonRewardingAddr
	//Total number of claim test cases, keep this at the bottom the enum
	totalClaimCasesNum
)

func TestBlockReward(t *testing.T) {
	r := require.New(t)
	testTriePath, err := testutil.PathOfTempFile("trie")
	r.NoError(err)
	testDBPath, err := testutil.PathOfTempFile("db")
	r.NoError(err)
	testIndexPath, err := testutil.PathOfTempFile("index")
	r.NoError(err)
	testConsensusPath, err := testutil.PathOfTempFile("cons")
	r.NoError(err)
	testContractIndexPath, err := testutil.PathOfTempFile("contractindex")
	r.NoError(err)
	testSGDIndexPath, err := testutil.PathOfTempFile("sgdindex")
	r.NoError(err)
	cfg := config.Default
	cfg.Consensus.Scheme = config.RollDPoSScheme
	cfg.Genesis.NumDelegates = 1
	cfg.Genesis.NumSubEpochs = 10
	cfg.Genesis.Delegates = []genesis.Delegate{
		{
			OperatorAddrStr: identityset.Address(0).String(),
			RewardAddrStr:   identityset.Address(0).String(),
			VotesStr:        "10",
		},
	}
	cfg.Genesis.BlockInterval = time.Second
	cfg.Consensus.RollDPoS.FSM.AcceptBlockTTL = 300 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.AcceptProposalEndorsementTTL = 300 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.AcceptLockEndorsementTTL = 300 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.CommitTTL = 100 * time.Millisecond
	cfg.Consensus.RollDPoS.ConsensusDBPath = testConsensusPath
	cfg.Genesis.EnableGravityChainVoting = false
	cfg.Chain.ProducerPrivKey = identityset.PrivateKey(0).HexString()
	cfg.Chain.TrieDBPatchFile = ""
	cfg.Chain.TrieDBPath = testTriePath
	cfg.Chain.ChainDBPath = testDBPath
	cfg.Chain.IndexDBPath = testIndexPath
	cfg.Chain.ContractStakingIndexDBPath = testContractIndexPath
	cfg.Chain.SGDIndexDBPath = testSGDIndexPath
	cfg.Network.Port = testutil.RandomPort()
	cfg.Genesis.PollMode = "lifeLong"

	svr, err := itx.NewServer(cfg)
	require.NoError(t, err)
	require.NoError(t, svr.Start(context.Background()))
	defer func() {
		require.NoError(t, svr.Stop(context.Background()))
	}()

	require.NoError(t, testutil.WaitUntil(100*time.Millisecond, 20*time.Second, func() (b bool, e error) {
		return svr.ChainService(1).Blockchain().TipHeight() >= 5, nil
	}))

	ctx := protocol.WithBlockCtx(
		context.Background(),
		protocol.BlockCtx{
			BlockHeight: 0,
		},
	)
	ctx = genesis.WithGenesisContext(ctx, cfg.Genesis)
	ctx = protocol.WithFeatureCtx(ctx)

	rp := rewarding.FindProtocol(svr.ChainService(1).Registry())
	require.NotNil(t, rp)
	sf := svr.ChainService(1).StateFactory()

	sk, err := crypto.HexStringToPrivateKey(cfg.Chain.ProducerPrivKey)
	require.NoError(t, err)
	addr := sk.PublicKey().Address()
	require.NotNil(t, addr)

	blockReward, err := rp.BlockReward(ctx, sf)
	require.NoError(t, err)
	balance, _, err := rp.UnclaimedBalance(ctx, sf, addr)
	require.NoError(t, err)
	assert.True(t, balance.Cmp(big.NewInt(0).Mul(blockReward, big.NewInt(5))) <= 0)

	for i := 1; i <= 5; i++ {
		blk, err := svr.ChainService(1).BlockDAO().GetBlockByHeight(uint64(i))
		require.NoError(t, err)
		ok := false
		var gr *action.GrantReward
		for _, act := range blk.Body.Actions {
			gr, ok = act.Action().(*action.GrantReward)
			if ok {
				assert.Equal(t, uint64(i), gr.Height())
				break
			}
		}
		assert.True(t, ok)
	}
}

func TestBlockEpochReward(t *testing.T) {
	// TODO: fix the test
	t.Skip()

	dbFilePaths := make([]string, 0)

	//Test will stop after reaching this height
	runToHeight := uint64(60)

	//Number of nodes
	numNodes := 4

	// Set mini-cluster configurations
	rand.Seed(time.Now().UnixNano())
	configs := make([]config.Config, numNodes)
	for i := 0; i < numNodes; i++ {
		chainDBPath := fmt.Sprintf("./chain%d.db", i+1)
		dbFilePaths = append(dbFilePaths, chainDBPath)
		trieDBPath := fmt.Sprintf("./trie%d.db", i+1)
		dbFilePaths = append(dbFilePaths, trieDBPath)
		indexDBPath := fmt.Sprintf("./index%d.db", i+1)
		dbFilePaths = append(dbFilePaths, indexDBPath)
		contractIndexDBPath := fmt.Sprintf("./contractindex%d.db", i+1)
		dbFilePaths = append(dbFilePaths, contractIndexDBPath)
		consensusDBPath := fmt.Sprintf("./consensus%d.db", i+1)
		dbFilePaths = append(dbFilePaths, consensusDBPath)
		networkPort := 4689 + i
		apiPort := 14014 + i
		HTTPStatsPort := 8080 + i
		HTTPAdminPort := 9009 + i
		cfg := newConfig(chainDBPath, trieDBPath, indexDBPath, contractIndexDBPath, identityset.PrivateKey(i),
			networkPort, apiPort, uint64(numNodes))
		cfg.Consensus.RollDPoS.ConsensusDBPath = consensusDBPath
		if i == 0 {
			cfg.Network.BootstrapNodes = []string{}
			cfg.Network.MasterKey = "bootnode"
		}

		//Set Operator and Reward address
		cfg.Genesis.Delegates[i].RewardAddrStr = identityset.Address(i + numNodes).String()
		cfg.Genesis.Delegates[i].OperatorAddrStr = identityset.Address(i).String()
		//Generate random votes  from [1000,2000]
		cfg.Genesis.Delegates[i].VotesStr = strconv.Itoa(1000 + rand.Intn(1000))
		cfg.System.HTTPStatsPort = HTTPStatsPort
		cfg.System.HTTPAdminPort = HTTPAdminPort
		configs[i] = cfg
	}

	for _, dbFilePath := range dbFilePaths {
		if fileutil.FileExists(dbFilePath) && os.RemoveAll(dbFilePath) != nil {
			log.L().Error("Failed to delete db file")
		}
	}

	defer func() {
		for _, dbFilePath := range dbFilePaths {
			if fileutil.FileExists(dbFilePath) && os.RemoveAll(dbFilePath) != nil {
				log.L().Error("Failed to delete db file")
			}
		}

	}()
	// Create mini-cluster
	svrs := make([]*itx.Server, numNodes)
	for i := 0; i < numNodes; i++ {
		svr, err := itx.NewServer(configs[i])
		if err != nil {
			log.L().Fatal("Failed to create server.", zap.Error(err))
		}
		svrs[i] = svr
	}

	// Start mini-cluster
	for i := 0; i < numNodes; i++ {
		go itx.StartServer(context.Background(), svrs[i], probe.New(7788+i), configs[i])
	}

	// target address for grpc connection. Default is "127.0.0.1:14014"
	grpcAddr := "127.0.0.1:14014"

	grpcctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	conn, err := grpc.DialContext(grpcctx, grpcAddr, grpc.WithBlock(), grpc.WithInsecure())
	if err != nil {
		log.L().Error("Failed to connect to API server.")
	}
	defer conn.Close()

	client := iotexapi.NewAPIServiceClient(conn)

	// Get each server's parameters: rewarding protocol, working set, block chain etc.
	rps := make([]*rewarding.Protocol, numNodes)
	sfs := make([]factory.Factory, numNodes)
	chains := make([]blockchain.Blockchain, numNodes)
	apis := make([]*api.ServerV2, numNodes)
	//Map of expected unclaimed balance for each reward address
	exptUnclaimed := make(map[string]*big.Int, numNodes)
	//Map of real unclaimed balance for each reward address
	unClaimedBalances := make(map[string]*big.Int, numNodes)
	//Map of initial balance of both reward and operator address
	initBalances := make(map[string]*big.Int, numNodes)
	//Map of claimed amount for each reward address
	claimedAmount := make(map[string]*big.Int, numNodes)
	//Map to translate from operator address to reward address
	getRewardAddStr := make(map[string]string)

	for i := 0; i < numNodes; i++ {
		rp := rewarding.FindProtocol(svrs[i].ChainService(configs[i].Chain.ID).Registry())
		require.NotNil(t, rp)
		rps[i] = rp

		sfs[i] = svrs[i].ChainService(configs[i].Chain.ID).StateFactory()

		chains[i] = svrs[i].ChainService(configs[i].Chain.ID).Blockchain()
		apis[i] = svrs[i].APIServer(configs[i].Chain.ID)

		rewardAddr := identityset.Address(i + numNodes)
		rewardAddrStr := identityset.Address(i + numNodes).String()
		exptUnclaimed[rewardAddrStr] = big.NewInt(0)
		ctx := genesis.WithGenesisContext(context.Background(), configs[i].Genesis)
		initState, err := accountutil.AccountState(ctx, sfs[i], rewardAddr)
		require.NoError(t, err)
		initBalances[rewardAddrStr] = initState.Balance

		operatorAddr := identityset.Address(i)
		operatorAddrStr := identityset.Address(i).String()
		initState, err = accountutil.AccountState(ctx, sfs[i], operatorAddr)
		require.NoError(t, err)
		initBalances[operatorAddrStr] = initState.Balance

		claimedAmount[rewardAddrStr] = big.NewInt(0)

		getRewardAddStr[identityset.Address(i).String()] = rewardAddrStr

	}

	blocksPerEpoch := configs[0].Genesis.Blockchain.NumDelegates * configs[0].Genesis.Blockchain.NumSubEpochs

	blockReward, err := rps[0].BlockReward(context.Background(), sfs[0])
	require.NoError(t, err)

	//Calculate epoch reward shares for each delegate based on their weight (votes number)
	epochReward, err := rps[0].EpochReward(context.Background(), sfs[0])
	require.NoError(t, err)
	epRwdShares := make(map[string]*big.Int, numNodes)

	totalVotes := big.NewInt(0)
	for i := 0; i < numNodes; i++ {
		totalVotes = totalVotes.Add(configs[0].Genesis.Delegates[i].Votes(), totalVotes)
	}

	for i := 0; i < numNodes; i++ {
		tempShare := big.NewInt(0).Mul(epochReward, configs[0].Genesis.Delegates[i].Votes())
		rewardAddrStr := identityset.Address(i + numNodes).String()
		epRwdShares[rewardAddrStr] = big.NewInt(0).Div(tempShare, totalVotes)
	}

	//Map from action hash to expected result(Fail-false or Success-true), storing pending injected claim actions,
	pendingClaimActions := make(map[hash.Hash256]bool)
	//Start testing
	preHeight := uint64(0)
	preEpochNum := uint64(0)
	preExpectHigh := uint64(0)

	fmt.Println("Starting test")

	if err := testutil.WaitUntil(100*time.Millisecond, 120*time.Second, func() (bool, error) {
		height := chains[0].TipHeight()

		//New height is reached, need to update block reward
		if height > preHeight {

			err = testutil.WaitUntil(100*time.Millisecond, 15*time.Second, func() (bool, error) {
				//This Waituntil block guarantees that we can get a consistent snapshot of the followings at some height:
				// 1) all unclaimed balance live
				// 2) expected unclaimed balance
				// The test keeps comparing these values (after Waituntil block) to make sure everything is correct
				curHigh := chains[0].TipHeight()

				//check pending Claim actions, if a claim is executed, then adjust the expectation accordingly
				//Wait until all the pending actions are settled
				updateExpectationWithPendingClaimList(t, apis[0].CoreService(), exptUnclaimed, claimedAmount, pendingClaimActions)
				if len(pendingClaimActions) > 0 {
					// if there is pending action, retry
					return false, nil
				}

				for i := 0; i < numNodes; i++ {
					rewardAddr := identityset.Address(i + numNodes)
					unClaimedBalances[rewardAddr.String()], _, err =
						rps[0].UnclaimedBalance(context.Background(), sfs[0], rewardAddr)
				}

				if curHigh != chains[0].TipHeight() {
					return false, nil
				}

				//add expected block/epoch reward
				for h := preExpectHigh + 1; h <= curHigh; h++ {
					//Add block reward to current block producer
					header, err := chains[0].BlockHeaderByHeight(h)
					require.NoError(t, err)
					exptUnclaimed[getRewardAddStr[header.ProducerAddress()]] =
						big.NewInt(0).Add(exptUnclaimed[getRewardAddStr[header.ProducerAddress()]], blockReward)

					//update Epoch rewards
					epochNum := h / blocksPerEpoch
					if epochNum > preEpochNum {
						require.Equal(t, epochNum, preEpochNum+1)
						preEpochNum = epochNum

						//Add normal epoch reward
						for i := 0; i < numNodes; i++ {
							rewardAddrStr := identityset.Address(i + numNodes).String()
							expectAfterEpoch := big.NewInt(0).Add(exptUnclaimed[rewardAddrStr], epRwdShares[rewardAddrStr])
							exptUnclaimed[rewardAddrStr] = expectAfterEpoch
						}
						//Add foundation bonus
						foundationBonusLastEpoch, err := rps[0].FoundationBonusLastEpoch(context.Background(), sfs[0])
						require.NoError(t, err)
						foundationBonus, err := rps[0].FoundationBonus(context.Background(), sfs[0])
						require.NoError(t, err)
						if epochNum <= foundationBonusLastEpoch {
							for i := 0; i < numNodes; i++ {
								rewardAddrStr := identityset.Address(i + numNodes).String()
								expectAfterEpochBonus := big.NewInt(0).Add(exptUnclaimed[rewardAddrStr], foundationBonus)
								exptUnclaimed[rewardAddrStr] = expectAfterEpochBonus
							}
						}

					}
					preExpectHigh = h
				}

				//check pending Claim actions, if a claim is executed, then adjust the expectation accordingly
				updateExpectationWithPendingClaimList(t, apis[0].CoreService(), exptUnclaimed, claimedAmount, pendingClaimActions)

				curHighCheck := chains[0].TipHeight()
				preHeight = curHighCheck
				//If chain height changes, we need to take snapshot again.
				return curHigh == curHighCheck, nil

			})
			require.NoError(t, err)

			//Comparing the expected and real unclaimed balance
			for i := 0; i < numNodes; i++ {
				rewardAddrStr := identityset.Address(i + numNodes).String()

				fmt.Println("Server ", i, " ", rewardAddrStr,
					" unclaimed ", unClaimedBalances[rewardAddrStr].String(), " height ", preHeight)
				fmt.Println("Server ", i, " ", rewardAddrStr,
					"  expected ", exptUnclaimed[rewardAddrStr].String())

				require.Equal(t, exptUnclaimed[rewardAddrStr].String(), unClaimedBalances[rewardAddrStr].String())
			}

			// perform a random claim and record the amount
			// chose a random node to claim
			d := rand.Intn(numNodes)
			var amount *big.Int
			rewardAddrStr := identityset.Address(d + numNodes).String()
			rewardPriKey := identityset.PrivateKey(d + numNodes)
			expectedSuccess := true

			rand.Seed(time.Now().UnixNano())
			switch r := rand.Intn(int(totalClaimCasesNum)); claimTestCaseID(r) {
			case caseClaimZero:
				//Claim 0
				amount = big.NewInt(0)
			case caseClaimAll:
				//Claim all
				amount = exptUnclaimed[rewardAddrStr]
			case caseClaimMoreThanBalance:
				//Claim more than available unclaimed balance
				amount = big.NewInt(0).Mul(exptUnclaimed[rewardAddrStr], big.NewInt(2))
			case caseClaimPartOfBalance:
				//Claim random part of available
				amount = big.NewInt(0).Div(exptUnclaimed[rewardAddrStr], big.NewInt(int64(rand.Intn(100000))))
			case caseClaimNegative:
				//Claim negative
				amount = big.NewInt(-100000)
				expectedSuccess = false
			case caseClaimToNonRewardingAddr:
				//Claim to operator address instead of reward address
				rewardPriKey = identityset.PrivateKey(d)
				amount = big.NewInt(12345)
				expectedSuccess = false
			}

			injectClaim(t, nil, client, rewardPriKey, amount,
				expectedSuccess, 3, 1, pendingClaimActions)

		}

		return height > runToHeight, nil
	}); err != nil {

		log.L().Error(err.Error())
	}

	//Wait until all the pending actions are settled
	err = testutil.WaitUntil(100*time.Millisecond, 40*time.Second, func() (bool, error) {
		updateExpectationWithPendingClaimList(t, apis[0].CoreService(), exptUnclaimed, claimedAmount, pendingClaimActions)
		return len(pendingClaimActions) == 0, nil
	})
	require.NoError(t, err)

	for i := 0; i < numNodes; i++ {
		//Check Reward address balance
		rewardAddr := identityset.Address(i + numNodes)
		rewardAddrStr := rewardAddr.String()
		endState, err := accountutil.AccountState(
			genesis.WithGenesisContext(context.Background(), configs[0].Genesis),
			sfs[0],
			rewardAddr,
		)
		require.NoError(t, err)
		fmt.Println("Server ", i, " ", rewardAddrStr, " Closing Balance ", endState.Balance.String())
		expectBalance := big.NewInt(0).Add(initBalances[rewardAddrStr], claimedAmount[rewardAddrStr])
		fmt.Println("Server ", i, " ", rewardAddrStr, "Expected Balance ", expectBalance.String())
		require.Equal(t, expectBalance.String(), endState.Balance.String())

		//Make sure the non-reward addresses have not received money
		operatorAddr := identityset.Address(i)
		operatorAddrStr := identityset.Address(i).String()
		operatorState, err := accountutil.AccountState(
			genesis.WithGenesisContext(context.Background(), configs[i].Genesis),
			sfs[i],
			operatorAddr,
		)
		require.NoError(t, err)
		require.Equal(t, initBalances[operatorAddrStr], operatorState.Balance)
	}
}

func injectClaim(
	t *testing.T,
	wg *sync.WaitGroup,
	c iotexapi.APIServiceClient,
	beneficiaryPri crypto.PrivateKey,
	amount *big.Int,
	expectedSuccess bool,
	retryNum int,
	retryInterval int,
	pendingClaimActions map[hash.Hash256]bool,
) {
	if wg != nil {
		wg.Add(1)
	}
	payload := []byte{}
	beneficiaryAddr := beneficiaryPri.PublicKey().Address()
	require.NotNil(t, beneficiaryAddr)
	ctx := context.Background()
	request := iotexapi.GetAccountRequest{Address: beneficiaryAddr.String()}
	response, err := c.GetAccount(ctx, &request)
	require.NoError(t, err)
	nonce := response.AccountMeta.PendingNonce

	b := &action.ClaimFromRewardingFundBuilder{}
	act := b.SetAmount(amount).SetData(payload).Build()
	bd := &action.EnvelopeBuilder{}
	elp := bd.SetNonce(nonce).
		SetGasPrice(big.NewInt(0)).
		SetGasLimit(100000).
		SetAction(&act).Build()

	selp, err := action.Sign(elp, beneficiaryPri)
	require.NoError(t, err)

	bo := backoff.WithMaxRetries(backoff.NewConstantBackOff(time.Duration(retryInterval)*time.Second), uint64(retryNum))
	if err := backoff.Retry(func() error {
		_, err := c.SendAction(context.Background(), &iotexapi.SendActionRequest{Action: selp.Proto()})
		return err
	}, bo); err != nil {
		log.L().Error("Failed to inject claim", zap.Error(err))
	}

	if err == nil {
		selpHash, err1 := selp.Hash()
		if err1 != nil {
			log.L().Error("Failed to get hash", zap.Error(err1))
		}
		pendingClaimActions[selpHash] = expectedSuccess
	}

	if wg != nil {
		wg.Done()
	}
}

func updateExpectationWithPendingClaimList(
	t *testing.T,
	api api.CoreService,
	exptUnclaimed map[string]*big.Int,
	claimedAmount map[string]*big.Int,
	pendingClaimActions map[hash.Hash256]bool,
) bool {
	updated := false
	for selpHash, expectedSuccess := range pendingClaimActions {
		receipt, err := util.GetReceiptByAction(api, selpHash)
		if err == nil {
			actInfo, err := util.GetActionByActionHash(api, selpHash)
			require.NoError(t, err)
			addr := actInfo.GetSender()
			require.NotNil(t, addr)

			act := &action.ClaimFromRewardingFund{}
			err = act.LoadProto(actInfo.GetAction().Core.GetClaimFromRewardingFund())
			require.NoError(t, err)
			amount := act.Amount()

			if receipt.Status == uint64(iotextypes.ReceiptStatus_Success) {
				newExpectUnclaimed := big.NewInt(0).Sub(exptUnclaimed[addr], amount)
				exptUnclaimed[addr] = newExpectUnclaimed

				newClaimedAmount := big.NewInt(0).Add(claimedAmount[addr], amount)
				claimedAmount[addr] = newClaimedAmount
				updated = true

				//An test case expected to fail should never success
				require.NotEqual(t, expectedSuccess, false)
			}

			delete(pendingClaimActions, selpHash)
		}
	}

	return updated
}

func newConfig(
	chainDBPath,
	trieDBPath,
	indexDBPath,
	contractIndexDBPath string,
	producerPriKey crypto.PrivateKey,
	networkPort,
	apiPort int,
	numNodes uint64,
) config.Config {
	cfg := config.Default

	cfg.Network.Port = networkPort
	cfg.Network.BootstrapNodes = []string{"/ip4/127.0.0.1/tcp/4689/ipfs/12D3KooWJwW6pUpTkxPTMv84RPLPMQVEAjZ6fvJuX4oZrvW5DAGQ"}

	cfg.Chain.ID = 1
	cfg.Chain.ChainDBPath = chainDBPath
	cfg.Chain.TrieDBPath = trieDBPath
	cfg.Chain.IndexDBPath = indexDBPath
	cfg.Chain.ContractStakingIndexDBPath = contractIndexDBPath
	cfg.Chain.ProducerPrivKey = producerPriKey.HexString()
	cfg.Chain.EnableAsyncIndexWrite = false

	cfg.ActPool.MinGasPriceStr = big.NewInt(0).String()

	cfg.Consensus.Scheme = config.RollDPoSScheme
	cfg.Consensus.RollDPoS.FSM.UnmatchedEventInterval = 120 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.AcceptBlockTTL = 200 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.AcceptProposalEndorsementTTL = 100 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.AcceptLockEndorsementTTL = 100 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.CommitTTL = 100 * time.Millisecond
	cfg.Consensus.RollDPoS.FSM.EventChanSize = 100000
	cfg.Consensus.RollDPoS.ToleratedOvertime = 1200 * time.Millisecond
	cfg.Consensus.RollDPoS.Delay = 6 * time.Second

	cfg.API.GRPCPort = apiPort

	cfg.Genesis.Blockchain.NumSubEpochs = 4
	cfg.Genesis.Blockchain.NumDelegates = numNodes
	cfg.Genesis.Blockchain.TimeBasedRotation = true
	cfg.Genesis.Delegates = cfg.Genesis.Delegates[0:numNodes]
	cfg.Genesis.BlockInterval = 500 * time.Millisecond
	cfg.Genesis.EnableGravityChainVoting = true
	cfg.Genesis.Rewarding.FoundationBonusLastEpoch = 2

	return cfg
}