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system_test.go
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system_test.go
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package op_e2e
import (
"context"
"fmt"
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/rpc"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/stretchr/testify/require"
"golang.org/x/exp/slices"
"github.com/ethereum-optimism/optimism/op-bindings/bindings"
"github.com/ethereum-optimism/optimism/op-bindings/predeploys"
"github.com/ethereum-optimism/optimism/op-node/client"
"github.com/ethereum-optimism/optimism/op-node/eth"
"github.com/ethereum-optimism/optimism/op-node/metrics"
rollupNode "github.com/ethereum-optimism/optimism/op-node/node"
"github.com/ethereum-optimism/optimism/op-node/p2p"
"github.com/ethereum-optimism/optimism/op-node/rollup/derive"
"github.com/ethereum-optimism/optimism/op-node/rollup/driver"
"github.com/ethereum-optimism/optimism/op-node/sources"
"github.com/ethereum-optimism/optimism/op-node/testlog"
"github.com/ethereum-optimism/optimism/op-service/backoff"
oppprof "github.com/ethereum-optimism/optimism/op-service/pprof"
)
func TestL2OutputSubmitter(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
cfg.NonFinalizedProposals = true // speed up the time till we see output proposals
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l1Client := sys.Clients["l1"]
rollupRPCClient, err := rpc.DialContext(context.Background(), sys.RollupNodes["sequencer"].HTTPEndpoint())
require.Nil(t, err)
rollupClient := sources.NewRollupClient(client.NewBaseRPCClient(rollupRPCClient))
// OutputOracle is already deployed
l2OutputOracle, err := bindings.NewL2OutputOracleCaller(predeploys.DevL2OutputOracleAddr, l1Client)
require.Nil(t, err)
initialOutputBlockNumber, err := l2OutputOracle.LatestBlockNumber(&bind.CallOpts{})
require.Nil(t, err)
// Wait until the second output submission from L2. The output submitter submits outputs from the
// unsafe portion of the chain which gets reorged on startup. The sequencer has an out of date view
// when it creates it's first block and uses and old L1 Origin. It then does not submit a batch
// for that block and subsequently reorgs to match what the verifier derives when running the
// reconcillation process.
l2Verif := sys.Clients["verifier"]
_, err = waitForBlock(big.NewInt(6), l2Verif, 10*time.Duration(cfg.DeployConfig.L2BlockTime)*time.Second)
require.Nil(t, err)
// Wait for batch submitter to update L2 output oracle.
timeoutCh := time.After(15 * time.Second)
ticker := time.NewTicker(1 * time.Second)
defer ticker.Stop()
for {
l2ooBlockNumber, err := l2OutputOracle.LatestBlockNumber(&bind.CallOpts{})
require.Nil(t, err)
// Wait for the L2 output oracle to have been changed from the initial
// timestamp set in the contract constructor.
if l2ooBlockNumber.Cmp(initialOutputBlockNumber) > 0 {
// Retrieve the l2 output committed at this updated timestamp.
committedL2Output, err := l2OutputOracle.GetL2OutputAfter(&bind.CallOpts{}, l2ooBlockNumber)
require.NotEqual(t, [32]byte{}, committedL2Output.OutputRoot, "Empty L2 Output")
require.Nil(t, err)
// Fetch the corresponding L2 block and assert the committed L2
// output matches the block's state root.
//
// NOTE: This assertion will change once the L2 output format is
// finalized.
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
l2Output, err := rollupClient.OutputAtBlock(ctx, l2ooBlockNumber.Uint64())
require.Nil(t, err)
require.Equal(t, l2Output.OutputRoot[:], committedL2Output.OutputRoot[:])
break
}
select {
case <-timeoutCh:
t.Fatalf("State root oracle not updated")
case <-ticker.C:
}
}
}
// TestSystemE2E sets up a L1 Geth node, a rollup node, and a L2 geth node and then confirms that L1 deposits are reflected on L2.
// All nodes are run in process (but are the full nodes, not mocked or stubbed).
func TestSystemE2E(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
log := testlog.Logger(t, log.LvlInfo)
log.Info("genesis", "l2", sys.RollupConfig.Genesis.L2, "l1", sys.RollupConfig.Genesis.L1, "l2_time", sys.RollupConfig.Genesis.L2Time)
l1Client := sys.Clients["l1"]
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
// Transactor Account
ethPrivKey := sys.cfg.Secrets.Alice
// Send Transaction & wait for success
fromAddr := sys.cfg.Secrets.Addresses().Alice
ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
defer cancel()
startBalance, err := l2Verif.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Send deposit transaction
opts, err := bind.NewKeyedTransactorWithChainID(ethPrivKey, cfg.L1ChainIDBig())
require.Nil(t, err)
mintAmount := big.NewInt(1_000_000_000_000)
opts.Value = mintAmount
SendDepositTx(t, cfg, l1Client, l2Verif, opts, func(l2Opts *DepositTxOpts) {})
// Confirm balance
ctx, cancel = context.WithTimeout(context.Background(), 15*time.Second)
defer cancel()
endBalance, err := l2Verif.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
diff := new(big.Int)
diff = diff.Sub(endBalance, startBalance)
require.Equal(t, mintAmount, diff, "Did not get expected balance change")
// Submit TX to L2 sequencer node
receipt := SendL2Tx(t, cfg, l2Seq, ethPrivKey, func(opts *TxOpts) {
opts.Value = big.NewInt(1_000_000_000)
opts.Nonce = 1 // Already have deposit
opts.ToAddr = &common.Address{0xff, 0xff}
opts.VerifyOnClients(l2Verif)
})
// Verify blocks match after batch submission on verifiers and sequencers
verifBlock, err := l2Verif.BlockByNumber(context.Background(), receipt.BlockNumber)
require.Nil(t, err)
seqBlock, err := l2Seq.BlockByNumber(context.Background(), receipt.BlockNumber)
require.Nil(t, err)
require.Equal(t, verifBlock.NumberU64(), seqBlock.NumberU64(), "Verifier and sequencer blocks not the same after including a batch tx")
require.Equal(t, verifBlock.ParentHash(), seqBlock.ParentHash(), "Verifier and sequencer blocks parent hashes not the same after including a batch tx")
require.Equal(t, verifBlock.Hash(), seqBlock.Hash(), "Verifier and sequencer blocks not the same after including a batch tx")
rollupRPCClient, err := rpc.DialContext(context.Background(), sys.RollupNodes["sequencer"].HTTPEndpoint())
require.Nil(t, err)
rollupClient := sources.NewRollupClient(client.NewBaseRPCClient(rollupRPCClient))
// basic check that sync status works
seqStatus, err := rollupClient.SyncStatus(context.Background())
require.Nil(t, err)
require.LessOrEqual(t, seqBlock.NumberU64(), seqStatus.UnsafeL2.Number)
// basic check that version endpoint works
seqVersion, err := rollupClient.Version(context.Background())
require.Nil(t, err)
require.NotEqual(t, "", seqVersion)
}
// TestConfirmationDepth runs the rollup with both sequencer and verifier not immediately processing the tip of the chain.
func TestConfirmationDepth(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
cfg.DeployConfig.SequencerWindowSize = 4
cfg.DeployConfig.MaxSequencerDrift = 10 * cfg.DeployConfig.L1BlockTime
seqConfDepth := uint64(2)
verConfDepth := uint64(5)
cfg.Nodes["sequencer"].Driver.SequencerConfDepth = seqConfDepth
cfg.Nodes["sequencer"].Driver.VerifierConfDepth = 0
cfg.Nodes["verifier"].Driver.VerifierConfDepth = verConfDepth
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
log := testlog.Logger(t, log.LvlInfo)
log.Info("genesis", "l2", sys.RollupConfig.Genesis.L2, "l1", sys.RollupConfig.Genesis.L1, "l2_time", sys.RollupConfig.Genesis.L2Time)
l1Client := sys.Clients["l1"]
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
// Wait enough time for the sequencer to submit a block with distance from L1 head, submit it,
// and for the slower verifier to read a full sequence window and cover confirmation depth for reading and some margin
<-time.After(time.Duration((cfg.DeployConfig.SequencerWindowSize+verConfDepth+3)*cfg.DeployConfig.L1BlockTime) * time.Second)
// within a second, get both L1 and L2 verifier and sequencer block heads
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
l1Head, err := l1Client.BlockByNumber(ctx, nil)
require.NoError(t, err)
l2SeqHead, err := l2Seq.BlockByNumber(ctx, nil)
require.NoError(t, err)
l2VerHead, err := l2Verif.BlockByNumber(ctx, nil)
require.NoError(t, err)
seqInfo, err := derive.L1InfoDepositTxData(l2SeqHead.Transactions()[0].Data())
require.NoError(t, err)
require.LessOrEqual(t, seqInfo.Number+seqConfDepth, l1Head.NumberU64(), "the seq L2 head block should have an origin older than the L1 head block by at least the sequencer conf depth")
verInfo, err := derive.L1InfoDepositTxData(l2VerHead.Transactions()[0].Data())
require.NoError(t, err)
require.LessOrEqual(t, verInfo.Number+verConfDepth, l1Head.NumberU64(), "the ver L2 head block should have an origin older than the L1 head block by at least the verifier conf depth")
}
// TestPendingGasLimit tests the configuration of the gas limit of the pending block,
// and if it does not conflict with the regular gas limit on the verifier or sequencer.
func TestPendingGasLimit(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
// configure the L2 gas limit to be high, and the pending gas limits to be lower for resource saving.
cfg.DeployConfig.L2GenesisBlockGasLimit = 30_000_000
cfg.GethOptions["sequencer"] = []GethOption{
func(ethCfg *ethconfig.Config, nodeCfg *node.Config) error {
ethCfg.Miner.GasCeil = 10_000_000
ethCfg.Miner.RollupComputePendingBlock = true
return nil
},
}
cfg.GethOptions["verifier"] = []GethOption{
func(ethCfg *ethconfig.Config, nodeCfg *node.Config) error {
ethCfg.Miner.GasCeil = 9_000_000
ethCfg.Miner.RollupComputePendingBlock = true
return nil
},
}
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
log := testlog.Logger(t, log.LvlInfo)
log.Info("genesis", "l2", sys.RollupConfig.Genesis.L2, "l1", sys.RollupConfig.Genesis.L1, "l2_time", sys.RollupConfig.Genesis.L2Time)
l2Verif := sys.Clients["verifier"]
l2Seq := sys.Clients["sequencer"]
checkGasLimit := func(client *ethclient.Client, number *big.Int, expected uint64) *types.Header {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
header, err := client.HeaderByNumber(ctx, number)
cancel()
require.NoError(t, err)
require.Equal(t, expected, header.GasLimit)
return header
}
// check if the gaslimits are matching the expected values,
// and that the verifier/sequencer can use their locally configured gas limit for the pending block.
for {
checkGasLimit(l2Seq, big.NewInt(-1), 10_000_000)
checkGasLimit(l2Verif, big.NewInt(-1), 9_000_000)
checkGasLimit(l2Seq, nil, 30_000_000)
latestVerifHeader := checkGasLimit(l2Verif, nil, 30_000_000)
// Stop once the verifier passes genesis:
// this implies we checked a new block from the sequencer, on both sequencer and verifier nodes.
if latestVerifHeader.Number.Uint64() > 0 {
break
}
time.Sleep(500 * time.Millisecond)
}
}
// TestFinalize tests if L2 finalizes after sufficient time after L1 finalizes
func TestFinalize(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l2Seq := sys.Clients["sequencer"]
// as configured in the extra geth lifecycle in testing setup
const finalizedDistance = 8
// Wait enough time for L1 to finalize and L2 to confirm its data in finalized L1 blocks
time.Sleep(time.Duration((finalizedDistance+6)*cfg.DeployConfig.L1BlockTime) * time.Second)
// fetch the finalizes head of geth
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
l2Finalized, err := l2Seq.BlockByNumber(ctx, big.NewInt(int64(rpc.FinalizedBlockNumber)))
require.NoError(t, err)
require.NotZerof(t, l2Finalized.NumberU64(), "must have finalized L2 block")
}
func TestMintOnRevertedDeposit(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l1Client := sys.Clients["l1"]
l2Verif := sys.Clients["verifier"]
l1Node := sys.Nodes["l1"]
// create signer
ks := l1Node.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
opts, err := bind.NewKeyStoreTransactorWithChainID(ks, ks.Accounts()[0], cfg.L1ChainIDBig())
require.Nil(t, err)
fromAddr := opts.From
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
startBalance, err := l2Verif.BalanceAt(ctx, fromAddr, nil)
cancel()
require.Nil(t, err)
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
startNonce, err := l2Verif.NonceAt(ctx, fromAddr, nil)
require.NoError(t, err)
cancel()
toAddr := common.Address{0xff, 0xff}
mintAmount := big.NewInt(9_000_000)
opts.Value = mintAmount
SendDepositTx(t, cfg, l1Client, l2Verif, opts, func(l2Opts *DepositTxOpts) {
l2Opts.ToAddr = toAddr
// trigger a revert by transferring more than we have available
l2Opts.Value = new(big.Int).Mul(common.Big2, startBalance)
l2Opts.ExpectedStatus = types.ReceiptStatusFailed
})
// Confirm balance
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
endBalance, err := l2Verif.BalanceAt(ctx, fromAddr, nil)
cancel()
require.Nil(t, err)
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
toAddrBalance, err := l2Verif.BalanceAt(ctx, toAddr, nil)
require.NoError(t, err)
cancel()
diff := new(big.Int)
diff = diff.Sub(endBalance, startBalance)
require.Equal(t, mintAmount, diff, "Did not get expected balance change")
require.Equal(t, common.Big0.Int64(), toAddrBalance.Int64(), "The recipient account balance should be zero")
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
endNonce, err := l2Verif.NonceAt(ctx, fromAddr, nil)
require.NoError(t, err)
cancel()
require.Equal(t, startNonce+1, endNonce, "Nonce of deposit sender should increment on L2, even if the deposit fails")
}
func TestMissingBatchE2E(t *testing.T) {
InitParallel(t)
// Note this test zeroes the balance of the batch-submitter to make the batches unable to go into L1.
// The test logs may look scary, but this is expected:
// 'batcher unable to publish transaction role=batcher err="insufficient funds for gas * price + value"'
cfg := DefaultSystemConfig(t)
// small sequence window size so the test does not take as long
cfg.DeployConfig.SequencerWindowSize = 4
// Specifically set batch submitter balance to stop batches from being included
cfg.Premine[cfg.Secrets.Addresses().Batcher] = big.NewInt(0)
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
seqRollupRPCClient, err := rpc.DialContext(context.Background(), sys.RollupNodes["sequencer"].HTTPEndpoint())
require.Nil(t, err)
seqRollupClient := sources.NewRollupClient(client.NewBaseRPCClient(seqRollupRPCClient))
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit TX to L2 sequencer node
receipt := SendL2Tx(t, cfg, l2Seq, ethPrivKey, func(opts *TxOpts) {
opts.ToAddr = &common.Address{0xff, 0xff}
opts.Value = big.NewInt(1_000_000_000)
})
// Wait until the block it was first included in shows up in the safe chain on the verifier
_, err = waitForBlock(receipt.BlockNumber, l2Verif, time.Duration((sys.RollupConfig.SeqWindowSize+4)*cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for block on verifier")
// Assert that the transaction is not found on the verifier
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
_, err = l2Verif.TransactionReceipt(ctx, receipt.TxHash)
require.Equal(t, ethereum.NotFound, err, "Found transaction in verifier when it should not have been included")
// Wait a short time for the L2 reorg to occur on the sequencer as well.
err = waitForSafeHead(ctx, receipt.BlockNumber.Uint64(), seqRollupClient)
require.Nil(t, err, "timeout waiting for L2 reorg on sequencer safe head")
// Assert that the reconciliation process did an L2 reorg on the sequencer to remove the invalid block
ctx2, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
block, err := l2Seq.BlockByNumber(ctx2, receipt.BlockNumber)
require.Nil(t, err, "Get block from sequencer")
require.NotEqual(t, block.Hash(), receipt.BlockHash, "L2 Sequencer did not reorg out transaction on it's safe chain")
}
func L1InfoFromState(ctx context.Context, contract *bindings.L1Block, l2Number *big.Int) (derive.L1BlockInfo, error) {
var err error
var out derive.L1BlockInfo
opts := bind.CallOpts{
BlockNumber: l2Number,
Context: ctx,
}
out.Number, err = contract.Number(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get number: %w", err)
}
out.Time, err = contract.Timestamp(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get timestamp: %w", err)
}
out.BaseFee, err = contract.Basefee(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get timestamp: %w", err)
}
blockHashBytes, err := contract.Hash(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get block hash: %w", err)
}
out.BlockHash = common.BytesToHash(blockHashBytes[:])
out.SequenceNumber, err = contract.SequenceNumber(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get sequence number: %w", err)
}
overhead, err := contract.L1FeeOverhead(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get l1 fee overhead: %w", err)
}
out.L1FeeOverhead = eth.Bytes32(common.BigToHash(overhead))
scalar, err := contract.L1FeeScalar(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get l1 fee scalar: %w", err)
}
out.L1FeeScalar = eth.Bytes32(common.BigToHash(scalar))
batcherHash, err := contract.BatcherHash(&opts)
if err != nil {
return derive.L1BlockInfo{}, fmt.Errorf("failed to get batch sender: %w", err)
}
out.BatcherAddr = common.BytesToAddress(batcherHash[:])
return out, nil
}
// TestSystemMockP2P sets up a L1 Geth node, a rollup node, and a L2 geth node and then confirms that
// the nodes can sync L2 blocks before they are confirmed on L1.
func TestSystemMockP2P(t *testing.T) {
t.Skip("flaky in CI") // TODO(CLI-3859): Re-enable this test.
InitParallel(t)
cfg := DefaultSystemConfig(t)
// Disable batcher, so we don't sync from L1 & set a large sequence window so we only have unsafe blocks
cfg.DisableBatcher = true
cfg.DeployConfig.SequencerWindowSize = 100_000
cfg.DeployConfig.MaxSequencerDrift = 100_000
// disable at the start, so we don't miss any gossiped blocks.
cfg.Nodes["sequencer"].Driver.SequencerStopped = true
// connect the nodes
cfg.P2PTopology = map[string][]string{
"verifier": {"sequencer"},
}
var published, received []common.Hash
seqTracer, verifTracer := new(FnTracer), new(FnTracer)
seqTracer.OnPublishL2PayloadFn = func(ctx context.Context, payload *eth.ExecutionPayload) {
published = append(published, payload.BlockHash)
}
verifTracer.OnUnsafeL2PayloadFn = func(ctx context.Context, from peer.ID, payload *eth.ExecutionPayload) {
received = append(received, payload.BlockHash)
}
cfg.Nodes["sequencer"].Tracer = seqTracer
cfg.Nodes["verifier"].Tracer = verifTracer
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
// Enable the sequencer now that everyone is ready to receive payloads.
rollupRPCClient, err := rpc.DialContext(context.Background(), sys.RollupNodes["sequencer"].HTTPEndpoint())
require.Nil(t, err)
verifierPeerID := sys.RollupNodes["verifier"].P2P().Host().ID()
check := func() bool {
sequencerBlocksTopicPeers := sys.RollupNodes["sequencer"].P2P().GossipOut().BlocksTopicPeers()
return slices.Contains[peer.ID](sequencerBlocksTopicPeers, verifierPeerID)
}
// poll to see if the verifier node is connected & meshed on gossip.
// Without this verifier, we shouldn't start sending blocks around, or we'll miss them and fail the test.
backOffStrategy := backoff.Exponential()
for i := 0; i < 10; i++ {
if check() {
break
}
time.Sleep(backOffStrategy.Duration(i))
}
require.True(t, check(), "verifier must be meshed with sequencer for gossip test to proceed")
require.NoError(t, rollupRPCClient.Call(nil, "admin_startSequencer", sys.L2GenesisCfg.ToBlock().Hash()))
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit TX to L2 sequencer node
receiptSeq := SendL2Tx(t, cfg, l2Seq, ethPrivKey, func(opts *TxOpts) {
opts.ToAddr = &common.Address{0xff, 0xff}
opts.Value = big.NewInt(1_000_000_000)
// Wait until the block it was first included in shows up in the safe chain on the verifier
opts.VerifyOnClients(l2Verif)
})
// Verify that everything that was received was published
require.GreaterOrEqual(t, len(published), len(received))
require.ElementsMatch(t, received, published[:len(received)])
// Verify that the tx was received via p2p
require.Contains(t, received, receiptSeq.BlockHash)
}
// TestSystemRPCAltSync sets up a L1 Geth node, a rollup node, and a L2 geth node and then confirms that
// the nodes can sync L2 blocks before they are confirmed on L1.
//
// Test steps:
// 1. Spin up the nodes (P2P is disabled on the verifier)
// 2. Send a transaction to the sequencer.
// 3. Wait for the TX to be mined on the sequencer chain.
// 5. Wait for the verifier to detect a gap in the payload queue vs. the unsafe head
// 6. Wait for the RPC sync method to grab the block from the sequencer over RPC and insert it into the verifier's unsafe chain.
// 7. Wait for the verifier to sync the unsafe chain into the safe chain.
// 8. Verify that the TX is included in the verifier's safe chain.
func TestSystemRPCAltSync(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
// the default is nil, but this may change in the future.
// This test must ensure the blocks are not synced via Gossip, but instead via the alt RPC based sync.
cfg.P2PTopology = nil
// Disable batcher, so there will not be any L1 data to sync from
cfg.DisableBatcher = true
var published, received []string
seqTracer, verifTracer := new(FnTracer), new(FnTracer)
// The sequencer still publishes the blocks to the tracer, even if they do not reach the network due to disabled P2P
seqTracer.OnPublishL2PayloadFn = func(ctx context.Context, payload *eth.ExecutionPayload) {
published = append(published, payload.ID().String())
}
// Blocks are now received via the RPC based alt-sync method
verifTracer.OnUnsafeL2PayloadFn = func(ctx context.Context, from peer.ID, payload *eth.ExecutionPayload) {
received = append(received, payload.ID().String())
}
cfg.Nodes["sequencer"].Tracer = seqTracer
cfg.Nodes["verifier"].Tracer = verifTracer
sys, err := cfg.Start(SystemConfigOption{
key: "afterRollupNodeStart",
role: "sequencer",
action: func(sCfg *SystemConfig, system *System) {
rpc, _ := system.Nodes["sequencer"].Attach() // never errors
cfg.Nodes["verifier"].L2Sync = &rollupNode.PreparedL2SyncEndpoint{
Client: client.NewBaseRPCClient(rpc),
}
},
})
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit a TX to L2 sequencer node
receiptSeq := SendL2Tx(t, cfg, l2Seq, ethPrivKey, func(opts *TxOpts) {
opts.ToAddr = &common.Address{0xff, 0xff}
opts.Value = big.NewInt(1_000_000_000)
// Wait for alt RPC sync to pick up the blocks on the sequencer chain
opts.VerifyOnClients(l2Verif)
})
// Verify that the tx was received via RPC sync (P2P is disabled)
require.Contains(t, received, eth.BlockID{Hash: receiptSeq.BlockHash, Number: receiptSeq.BlockNumber.Uint64()}.String())
// Verify that everything that was received was published
require.GreaterOrEqual(t, len(published), len(received))
require.ElementsMatch(t, received, published[:len(received)])
}
func TestSystemP2PAltSync(t *testing.T) {
InitParallel(t)
cfg := DefaultSystemConfig(t)
// remove default verifier node
delete(cfg.Nodes, "verifier")
// Add more verifier nodes
cfg.Nodes["alice"] = &rollupNode.Config{
Driver: driver.Config{
VerifierConfDepth: 0,
SequencerConfDepth: 0,
SequencerEnabled: false,
},
L1EpochPollInterval: time.Second * 4,
}
cfg.Nodes["bob"] = &rollupNode.Config{
Driver: driver.Config{
VerifierConfDepth: 0,
SequencerConfDepth: 0,
SequencerEnabled: false,
},
L1EpochPollInterval: time.Second * 4,
}
cfg.Loggers["alice"] = testlog.Logger(t, log.LvlInfo).New("role", "alice")
cfg.Loggers["bob"] = testlog.Logger(t, log.LvlInfo).New("role", "bob")
// connect the nodes
cfg.P2PTopology = map[string][]string{
"sequencer": {"alice", "bob"},
"alice": {"sequencer", "bob"},
"bob": {"alice", "sequencer"},
}
// Enable the P2P req-resp based sync
cfg.P2PReqRespSync = true
// Disable batcher, so there will not be any L1 data to sync from
cfg.DisableBatcher = true
var published []string
seqTracer := new(FnTracer)
// The sequencer still publishes the blocks to the tracer, even if they do not reach the network due to disabled P2P
seqTracer.OnPublishL2PayloadFn = func(ctx context.Context, payload *eth.ExecutionPayload) {
published = append(published, payload.ID().String())
}
// Blocks are now received via the RPC based alt-sync method
cfg.Nodes["sequencer"].Tracer = seqTracer
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l2Seq := sys.Clients["sequencer"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit a TX to L2 sequencer node
receiptSeq := SendL2Tx(t, cfg, l2Seq, ethPrivKey, func(opts *TxOpts) {
opts.ToAddr = &common.Address{0xff, 0xff}
opts.Value = big.NewInt(1_000_000_000)
})
// Gossip is able to respond to IWANT messages for the duration of heartbeat_time * message_window = 0.5 * 12 = 6
// Wait till we pass that, and then we'll have missed some blocks that cannot be retrieved in any way from gossip
time.Sleep(time.Second * 10)
// set up our syncer node, connect it to alice/bob
cfg.Loggers["syncer"] = testlog.Logger(t, log.LvlInfo).New("role", "syncer")
snapLog := log.New()
snapLog.SetHandler(log.DiscardHandler())
// Create a peer, and hook up alice and bob
h, err := sys.newMockNetPeer()
require.NoError(t, err)
_, err = sys.Mocknet.LinkPeers(sys.RollupNodes["alice"].P2P().Host().ID(), h.ID())
require.NoError(t, err)
_, err = sys.Mocknet.LinkPeers(sys.RollupNodes["bob"].P2P().Host().ID(), h.ID())
require.NoError(t, err)
// Configure the new rollup node that'll be syncing
var syncedPayloads []string
syncNodeCfg := &rollupNode.Config{
L2Sync: &rollupNode.PreparedL2SyncEndpoint{Client: nil},
Driver: driver.Config{VerifierConfDepth: 0},
Rollup: *sys.RollupConfig,
P2PSigner: nil,
RPC: rollupNode.RPCConfig{
ListenAddr: "127.0.0.1",
ListenPort: 0,
EnableAdmin: true,
},
P2P: &p2p.Prepared{HostP2P: h, EnableReqRespSync: true},
Metrics: rollupNode.MetricsConfig{Enabled: false}, // no metrics server
Pprof: oppprof.CLIConfig{},
L1EpochPollInterval: time.Second * 10,
Tracer: &FnTracer{
OnUnsafeL2PayloadFn: func(ctx context.Context, from peer.ID, payload *eth.ExecutionPayload) {
syncedPayloads = append(syncedPayloads, payload.ID().String())
},
},
}
configureL1(syncNodeCfg, sys.Nodes["l1"])
syncerL2Engine, _, err := initL2Geth("syncer", big.NewInt(int64(cfg.DeployConfig.L2ChainID)), sys.L2GenesisCfg, cfg.JWTFilePath)
require.NoError(t, err)
require.NoError(t, syncerL2Engine.Start())
configureL2(syncNodeCfg, syncerL2Engine, cfg.JWTSecret)
syncerNode, err := rollupNode.New(context.Background(), syncNodeCfg, cfg.Loggers["syncer"], snapLog, "", metrics.NewMetrics(""))
require.NoError(t, err)
err = syncerNode.Start(context.Background())
require.NoError(t, err)
// connect alice and bob to our new syncer node
_, err = sys.Mocknet.ConnectPeers(sys.RollupNodes["alice"].P2P().Host().ID(), syncerNode.P2P().Host().ID())
require.NoError(t, err)
_, err = sys.Mocknet.ConnectPeers(sys.RollupNodes["bob"].P2P().Host().ID(), syncerNode.P2P().Host().ID())
require.NoError(t, err)
rpc, err := syncerL2Engine.Attach()
require.NoError(t, err)
l2Verif := ethclient.NewClient(rpc)
// It may take a while to sync, but eventually we should see the sequenced data show up
receiptVerif, err := waitForTransaction(receiptSeq.TxHash, l2Verif, 100*time.Duration(sys.RollupConfig.BlockTime)*time.Second)
require.Nil(t, err, "Waiting for L2 tx on verifier")
require.Equal(t, receiptSeq, receiptVerif)
// Verify that the tx was received via P2P sync
require.Contains(t, syncedPayloads, eth.BlockID{Hash: receiptVerif.BlockHash, Number: receiptVerif.BlockNumber.Uint64()}.String())
// Verify that everything that was received was published
require.GreaterOrEqual(t, len(published), len(syncedPayloads))
require.ElementsMatch(t, syncedPayloads, published[:len(syncedPayloads)])
}
// TestSystemDenseTopology sets up a dense p2p topology with 3 verifier nodes and 1 sequencer node.
func TestSystemDenseTopology(t *testing.T) {
t.Skip("Skipping dense topology test to avoid flakiness. @refcell address in p2p scoring pr.")
InitParallel(t)
cfg := DefaultSystemConfig(t)
// slow down L1 blocks so we can see the L2 blocks arrive well before the L1 blocks do.
// Keep the seq window small so the L2 chain is started quick
cfg.DeployConfig.L1BlockTime = 10
// Append additional nodes to the system to construct a dense p2p network
cfg.Nodes["verifier2"] = &rollupNode.Config{
Driver: driver.Config{
VerifierConfDepth: 0,
SequencerConfDepth: 0,
SequencerEnabled: false,
},
L1EpochPollInterval: time.Second * 4,
}
cfg.Nodes["verifier3"] = &rollupNode.Config{
Driver: driver.Config{
VerifierConfDepth: 0,
SequencerConfDepth: 0,
SequencerEnabled: false,
},
L1EpochPollInterval: time.Second * 4,
}
cfg.Loggers["verifier2"] = testlog.Logger(t, log.LvlInfo).New("role", "verifier")
cfg.Loggers["verifier3"] = testlog.Logger(t, log.LvlInfo).New("role", "verifier")
// connect the nodes
cfg.P2PTopology = map[string][]string{
"verifier": {"sequencer", "verifier2", "verifier3"},
"verifier2": {"sequencer", "verifier", "verifier3"},
"verifier3": {"sequencer", "verifier", "verifier2"},
}
// Set peer scoring for each node, but without banning
for _, node := range cfg.Nodes {
params, err := p2p.GetScoringParams("light", &node.Rollup)
require.NoError(t, err)
node.P2P = &p2p.Config{
ScoringParams: params,
BanningEnabled: false,
}
}
var published, received1, received2, received3 []common.Hash
seqTracer, verifTracer, verifTracer2, verifTracer3 := new(FnTracer), new(FnTracer), new(FnTracer), new(FnTracer)
seqTracer.OnPublishL2PayloadFn = func(ctx context.Context, payload *eth.ExecutionPayload) {
published = append(published, payload.BlockHash)
}
verifTracer.OnUnsafeL2PayloadFn = func(ctx context.Context, from peer.ID, payload *eth.ExecutionPayload) {
received1 = append(received1, payload.BlockHash)
}
verifTracer2.OnUnsafeL2PayloadFn = func(ctx context.Context, from peer.ID, payload *eth.ExecutionPayload) {
received2 = append(received2, payload.BlockHash)
}
verifTracer3.OnUnsafeL2PayloadFn = func(ctx context.Context, from peer.ID, payload *eth.ExecutionPayload) {
received3 = append(received3, payload.BlockHash)
}
cfg.Nodes["sequencer"].Tracer = seqTracer
cfg.Nodes["verifier"].Tracer = verifTracer
cfg.Nodes["verifier2"].Tracer = verifTracer2
cfg.Nodes["verifier3"].Tracer = verifTracer3
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
l2Verif2 := sys.Clients["verifier2"]
l2Verif3 := sys.Clients["verifier3"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit TX to L2 sequencer node
receiptSeq := SendL2Tx(t, cfg, l2Seq, ethPrivKey, func(opts *TxOpts) {
opts.ToAddr = &common.Address{0xff, 0xff}
opts.Value = big.NewInt(1_000_000_000)
// Wait until the block it was first included in shows up in the safe chain on the verifiers
opts.VerifyOnClients(l2Verif, l2Verif2, l2Verif3)
})
// Verify that everything that was received was published
require.GreaterOrEqual(t, len(published), len(received1))
require.GreaterOrEqual(t, len(published), len(received2))
require.GreaterOrEqual(t, len(published), len(received3))
require.ElementsMatch(t, published, received1[:len(published)])
require.ElementsMatch(t, published, received2[:len(published)])
require.ElementsMatch(t, published, received3[:len(published)])
// Verify that the tx was received via p2p
require.Contains(t, received1, receiptSeq.BlockHash)
require.Contains(t, received2, receiptSeq.BlockHash)
require.Contains(t, received3, receiptSeq.BlockHash)
}
func TestL1InfoContract(t *testing.T) {
//todo temporarily skip this test
t.SkipNow()
InitParallel(t)
cfg := DefaultSystemConfig(t)
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l1Client := sys.Clients["l1"]
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
endVerifBlockNumber := big.NewInt(4)
endSeqBlockNumber := big.NewInt(6)
endVerifBlock, err := waitForBlock(endVerifBlockNumber, l2Verif, time.Minute)
require.Nil(t, err)
endSeqBlock, err := waitForBlock(endSeqBlockNumber, l2Seq, time.Minute)
require.Nil(t, err)
seqL1Info, err := bindings.NewL1Block(cfg.L1InfoPredeployAddress, l2Seq)
require.Nil(t, err)
verifL1Info, err := bindings.NewL1Block(cfg.L1InfoPredeployAddress, l2Verif)
require.Nil(t, err)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
fillInfoLists := func(start *types.Block, contract *bindings.L1Block, client *ethclient.Client) ([]derive.L1BlockInfo, []derive.L1BlockInfo) {
var txList, stateList []derive.L1BlockInfo
for b := start; ; {
var infoFromTx derive.L1BlockInfo
require.NoError(t, infoFromTx.UnmarshalBinary(b.Transactions()[0].Data()))
txList = append(txList, infoFromTx)
infoFromState, err := L1InfoFromState(ctx, contract, b.Number())
require.Nil(t, err)
stateList = append(stateList, infoFromState)
// Genesis L2 block contains no L1 Deposit TX
if b.NumberU64() == 1 {
return txList, stateList
}
b, err = client.BlockByHash(ctx, b.ParentHash())
require.Nil(t, err)
}
}
l1InfosFromSequencerTransactions, l1InfosFromSequencerState := fillInfoLists(endSeqBlock, seqL1Info, l2Seq)
l1InfosFromVerifierTransactions, l1InfosFromVerifierState := fillInfoLists(endVerifBlock, verifL1Info, l2Verif)
l1blocks := make(map[common.Hash]derive.L1BlockInfo)
maxL1Hash := l1InfosFromSequencerTransactions[0].BlockHash
for h := maxL1Hash; ; {
b, err := l1Client.BlockByHash(ctx, h)
require.Nil(t, err)
l1blocks[h] = derive.L1BlockInfo{
Number: b.NumberU64(),
Time: b.Time(),
BaseFee: b.BaseFee(),
BlockHash: h,
SequenceNumber: 0, // ignored, will be overwritten
BatcherAddr: sys.RollupConfig.Genesis.SystemConfig.BatcherAddr,
L1FeeOverhead: sys.RollupConfig.Genesis.SystemConfig.Overhead,
L1FeeScalar: sys.RollupConfig.Genesis.SystemConfig.Scalar,
}
h = b.ParentHash()
if b.NumberU64() == 0 {
break
}
}
checkInfoList := func(name string, list []derive.L1BlockInfo) {
for _, info := range list {
if expected, ok := l1blocks[info.BlockHash]; ok {
expected.SequenceNumber = info.SequenceNumber // the seq nr is not part of the L1 info we know in advance, so we ignore it.
require.Equal(t, expected, info)
} else {
t.Fatalf("Did not find block hash for L1 Info: %v in test %s", info, name)
}
}
}
checkInfoList("On sequencer with tx", l1InfosFromSequencerTransactions)
checkInfoList("On sequencer with state", l1InfosFromSequencerState)
checkInfoList("On verifier with tx", l1InfosFromVerifierTransactions)
checkInfoList("On verifier with state", l1InfosFromVerifierState)
}
// calcGasFees determines the actual cost of the transaction given a specific basefee
// This does not include the L1 data fee charged from L2 transactions.
func calcGasFees(gasUsed uint64, gasTipCap *big.Int, gasFeeCap *big.Int, baseFee *big.Int) *big.Int {
x := new(big.Int).Add(gasTipCap, baseFee)
// If tip + basefee > gas fee cap, clamp it to the gas fee cap
if x.Cmp(gasFeeCap) > 0 {
x = gasFeeCap
}
return x.Mul(x, new(big.Int).SetUint64(gasUsed))
}
// calcL1GasUsed returns the gas used to include the transaction data in
// the calldata on L1
func calcL1GasUsed(data []byte, overhead *big.Int) *big.Int {
var zeroes, ones uint64
for _, byt := range data {
if byt == 0 {
zeroes++
} else {
ones++
}
}
zeroesGas := zeroes * 4 // params.TxDataZeroGas
onesGas := (ones + 68) * 16 // params.TxDataNonZeroGasEIP2028
l1Gas := new(big.Int).SetUint64(zeroesGas + onesGas)
return new(big.Int).Add(l1Gas, overhead)
}