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system_test.go
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package op_e2e
import (
"context"
"flag"
"fmt"
"math/big"
"os"
"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/ethclient/gethclient"
"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"
"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/rollup/derive"
"github.com/ethereum-optimism/optimism/op-node/sources"
"github.com/ethereum-optimism/optimism/op-node/testlog"
"github.com/ethereum-optimism/optimism/op-node/withdrawals"
)
var enableParallelTesting bool = true
// Init testing to enable test flags
var _ = func() bool {
testing.Init()
return true
}()
var verboseGethNodes bool
func init() {
flag.BoolVar(&verboseGethNodes, "gethlogs", true, "Enable logs on geth nodes")
flag.Parse()
if os.Getenv("OP_E2E_DISABLE_PARALLEL") == "true" {
enableParallelTesting = false
}
}
func parallel(t *testing.T) {
t.Helper()
if enableParallelTesting {
t.Parallel()
}
}
func TestL2OutputSubmitter(t *testing.T) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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
// Find deposit contract
depositContract, err := bindings.NewOptimismPortal(predeploys.DevOptimismPortalAddr, l1Client)
require.Nil(t, err)
// Create signer
opts, err := bind.NewKeyedTransactorWithChainID(ethPrivKey, cfg.L1ChainIDBig())
require.Nil(t, err)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
startBalance, err := l2Verif.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Finally send TX
mintAmount := big.NewInt(1_000_000_000_000)
opts.Value = mintAmount
tx, err := depositContract.DepositTransaction(opts, fromAddr, common.Big0, 1_000_000, false, nil)
require.Nil(t, err, "with deposit tx")
receipt, err := waitForTransaction(tx.Hash(), l1Client, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for deposit tx on L1")
reconstructedDep, err := derive.UnmarshalDepositLogEvent(receipt.Logs[0])
require.NoError(t, err, "Could not reconstruct L2 Deposit")
tx = types.NewTx(reconstructedDep)
receipt, err = waitForTransaction(tx.Hash(), l2Verif, 6*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.NoError(t, err)
require.Equal(t, receipt.Status, types.ReceiptStatusSuccessful)
// Confirm balance
ctx, cancel = context.WithTimeout(context.Background(), 1*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
toAddr := common.Address{0xff, 0xff}
tx = types.MustSignNewTx(ethPrivKey, types.LatestSignerForChainID(cfg.L2ChainIDBig()), &types.DynamicFeeTx{
ChainID: cfg.L2ChainIDBig(),
Nonce: 1, // Already have deposit
To: &toAddr,
Value: big.NewInt(1_000_000_000),
GasTipCap: big.NewInt(10),
GasFeeCap: big.NewInt(200),
Gas: 21000,
})
err = l2Seq.SendTransaction(context.Background(), tx)
require.Nil(t, err, "Sending L2 tx to sequencer")
_, err = waitForTransaction(tx.Hash(), l2Seq, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for L2 tx on sequencer")
receipt, err = waitForTransaction(tx.Hash(), l2Verif, 10*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for L2 tx on verifier")
require.Equal(t, types.ReceiptStatusSuccessful, receipt.Status, "TX should have succeeded")
// 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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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 = 20_000_000
cfg.GethOptions["sequencer"] = []GethOption{
func(ethCfg *ethconfig.Config, nodeCfg *node.Config) error {
ethCfg.Miner.GasCeil = 10_000_000
return nil
},
}
cfg.GethOptions["verifier"] = []GethOption{
func(ethCfg *ethconfig.Config, nodeCfg *node.Config) error {
ethCfg.Miner.GasCeil = 9_000_000
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, 20_000_000)
latestVerifHeader := checkGasLimit(l2Verif, nil, 20_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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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
finalizedDistance := uint64(8)
// Wait enough time for L1 to finalize and L2 to confirm its data in finalized L1 blocks
<-time.After(time.Duration((finalizedDistance+4)*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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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"]
// Find deposit contract
depositContract, err := bindings.NewOptimismPortal(predeploys.DevOptimismPortalAddr, l1Client)
require.Nil(t, err)
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
value := new(big.Int).Mul(common.Big2, startBalance) // trigger a revert by transferring more than we have available
tx, err := depositContract.DepositTransaction(opts, toAddr, value, 1_000_000, false, nil)
require.Nil(t, err, "with deposit tx")
receipt, err := waitForTransaction(tx.Hash(), l1Client, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for deposit tx on L1")
reconstructedDep, err := derive.UnmarshalDepositLogEvent(receipt.Logs[0])
require.NoError(t, err, "Could not reconstruct L2 Deposit")
tx = types.NewTx(reconstructedDep)
receipt, err = waitForTransaction(tx.Hash(), l2Verif, 10*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.NoError(t, err)
require.Equal(t, receipt.Status, 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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
// 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"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit TX to L2 sequencer node
toAddr := common.Address{0xff, 0xff}
tx := types.MustSignNewTx(ethPrivKey, types.LatestSignerForChainID(cfg.L2ChainIDBig()), &types.DynamicFeeTx{
ChainID: cfg.L2ChainIDBig(),
Nonce: 0,
To: &toAddr,
Value: big.NewInt(1_000_000_000),
GasTipCap: big.NewInt(10),
GasFeeCap: big.NewInt(200),
Gas: 21000,
})
err = l2Seq.SendTransaction(context.Background(), tx)
require.Nil(t, err, "Sending L2 tx to sequencer")
// Let it show up on the unsafe chain
receipt, err := waitForTransaction(tx.Hash(), l2Seq, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for L2 tx on sequencer")
// 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, tx.Hash())
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.
// The proper thing to do is to wait until the sequencer marks this block safe.
<-time.After(2 * time.Second)
// 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) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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
// connect the nodes
cfg.P2PTopology = map[string][]string{
"verifier": []string{"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()
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
// Submit TX to L2 sequencer node
toAddr := common.Address{0xff, 0xff}
tx := types.MustSignNewTx(ethPrivKey, types.LatestSignerForChainID(cfg.L2ChainIDBig()), &types.DynamicFeeTx{
ChainID: cfg.L2ChainIDBig(),
Nonce: 0,
To: &toAddr,
Value: big.NewInt(1_000_000_000),
GasTipCap: big.NewInt(10),
GasFeeCap: big.NewInt(200),
Gas: 21000,
})
err = l2Seq.SendTransaction(context.Background(), tx)
require.Nil(t, err, "Sending L2 tx to sequencer")
// Wait for tx to be mined on the L2 sequencer chain
receiptSeq, err := waitForTransaction(tx.Hash(), l2Seq, 6*time.Duration(sys.RollupConfig.BlockTime)*time.Second)
require.Nil(t, err, "Waiting for L2 tx on sequencer")
// Wait until the block it was first included in shows up in the safe chain on the verifier
receiptVerif, err := waitForTransaction(tx.Hash(), l2Verif, 6*time.Duration(sys.RollupConfig.BlockTime)*time.Second)
require.Nil(t, err, "Waiting for L2 tx on verifier")
require.Equal(t, receiptSeq, receiptVerif)
// 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, receiptVerif.BlockHash)
}
func TestL1InfoContract(t *testing.T) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
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)
}
// TestWithdrawals checks that a deposit and then withdrawal execution succeeds. It verifies the
// balance changes on L1 and L2 and has to include gas fees in the balance checks.
// It does not check that the withdrawal can be executed prior to the end of the finality period.
func TestWithdrawals(t *testing.T) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
cfg := DefaultSystemConfig(t)
cfg.DeployConfig.FinalizationPeriodSeconds = 2 // 2s finalization period
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"]
// Transactor Account
ethPrivKey := cfg.Secrets.Alice
fromAddr := crypto.PubkeyToAddress(ethPrivKey.PublicKey)
// Find deposit contract
depositContract, err := bindings.NewOptimismPortal(predeploys.DevOptimismPortalAddr, l1Client)
require.Nil(t, err)
// Create L1 signer
opts, err := bind.NewKeyedTransactorWithChainID(ethPrivKey, cfg.L1ChainIDBig())
require.Nil(t, err)
// Start L2 balance
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
startBalance, err := l2Verif.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Finally send TX
mintAmount := big.NewInt(1_000_000_000_000)
opts.Value = mintAmount
tx, err := depositContract.DepositTransaction(opts, fromAddr, common.Big0, 1_000_000, false, nil)
require.Nil(t, err, "with deposit tx")
receipt, err := waitForTransaction(tx.Hash(), l1Client, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "Waiting for deposit tx on L1")
// Bind L2 Withdrawer Contract
l2withdrawer, err := bindings.NewL2ToL1MessagePasser(predeploys.L2ToL1MessagePasserAddr, l2Seq)
require.Nil(t, err, "binding withdrawer on L2")
// Wait for deposit to arrive
reconstructedDep, err := derive.UnmarshalDepositLogEvent(receipt.Logs[0])
require.NoError(t, err, "Could not reconstruct L2 Deposit")
tx = types.NewTx(reconstructedDep)
receipt, err = waitForTransaction(tx.Hash(), l2Verif, 10*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.NoError(t, err)
require.Equal(t, receipt.Status, types.ReceiptStatusSuccessful)
// Confirm L2 balance
ctx, cancel = context.WithTimeout(context.Background(), 1*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 after mint")
// Start L2 balance for withdrawal
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
startBalance, err = l2Seq.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Intiate Withdrawal
withdrawAmount := big.NewInt(500_000_000_000)
l2opts, err := bind.NewKeyedTransactorWithChainID(ethPrivKey, cfg.L2ChainIDBig())
require.Nil(t, err)
l2opts.Value = withdrawAmount
tx, err = l2withdrawer.InitiateWithdrawal(l2opts, fromAddr, big.NewInt(21000), nil)
require.Nil(t, err, "sending initiate withdraw tx")
receipt, err = waitForTransaction(tx.Hash(), l2Verif, 10*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "withdrawal initiated on L2 sequencer")
require.Equal(t, receipt.Status, types.ReceiptStatusSuccessful, "transaction failed")
// Verify L2 balance after withdrawal
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
header, err := l2Verif.HeaderByNumber(ctx, receipt.BlockNumber)
require.Nil(t, err)
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
endBalance, err = l2Verif.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Take fee into account
diff = new(big.Int).Sub(startBalance, endBalance)
fees := calcGasFees(receipt.GasUsed, tx.GasTipCap(), tx.GasFeeCap(), header.BaseFee)
fees = fees.Add(fees, receipt.L1Fee)
diff = diff.Sub(diff, fees)
require.Equal(t, withdrawAmount, diff)
// Take start balance on L1
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
startBalance, err = l1Client.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Get l2BlockNumber for proof generation
ctx, cancel = context.WithTimeout(context.Background(), 30*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
defer cancel()
blockNumber, err := withdrawals.WaitForFinalizationPeriod(ctx, l1Client, predeploys.DevOptimismPortalAddr, receipt.BlockNumber)
require.Nil(t, err)
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
header, err = l2Verif.HeaderByNumber(ctx, new(big.Int).SetUint64(blockNumber))
require.Nil(t, err)
rpcClient, err := rpc.Dial(sys.Nodes["verifier"].WSEndpoint())
require.Nil(t, err)
proofCl := gethclient.New(rpcClient)
receiptCl := ethclient.NewClient(rpcClient)
// Now create withdrawal
oracle, err := bindings.NewL2OutputOracleCaller(predeploys.DevL2OutputOracleAddr, l1Client)
require.Nil(t, err)
params, err := withdrawals.ProveWithdrawalParameters(context.Background(), proofCl, receiptCl, tx.Hash(), header, oracle)
require.Nil(t, err)
portal, err := bindings.NewOptimismPortal(predeploys.DevOptimismPortalAddr, l1Client)
require.Nil(t, err)
opts.Value = nil
// Prove withdrawal
tx, err = portal.ProveWithdrawalTransaction(
opts,
bindings.TypesWithdrawalTransaction{
Nonce: params.Nonce,
Sender: params.Sender,
Target: params.Target,
Value: params.Value,
GasLimit: params.GasLimit,
Data: params.Data,
},
params.L2OutputIndex,
params.OutputRootProof,
params.WithdrawalProof,
)
require.Nil(t, err)
// Ensure that our withdrawal was proved successfully
proveReceipt, err := waitForTransaction(tx.Hash(), l1Client, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "prove withdrawal")
require.Equal(t, types.ReceiptStatusSuccessful, proveReceipt.Status)
// Wait for finalization and then create the Finalized Withdrawal Transaction
ctx, cancel = context.WithTimeout(context.Background(), 30*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
defer cancel()
_, err = withdrawals.WaitForFinalizationPeriod(ctx, l1Client, predeploys.DevOptimismPortalAddr, header.Number)
require.Nil(t, err)
// Finalize withdrawal
tx, err = portal.FinalizeWithdrawalTransaction(
opts,
bindings.TypesWithdrawalTransaction{
Nonce: params.Nonce,
Sender: params.Sender,
Target: params.Target,
Value: params.Value,
GasLimit: params.GasLimit,
Data: params.Data,
},
)
require.Nil(t, err)
// Ensure that our withdrawal was finalized successfully
finalizeReceipt, err := waitForTransaction(tx.Hash(), l1Client, 3*time.Duration(cfg.DeployConfig.L1BlockTime)*time.Second)
require.Nil(t, err, "finalize withdrawal")
require.Equal(t, types.ReceiptStatusSuccessful, finalizeReceipt.Status)
// Verify balance after withdrawal
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
header, err = l1Client.HeaderByNumber(ctx, finalizeReceipt.BlockNumber)
require.Nil(t, err)
ctx, cancel = context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
endBalance, err = l1Client.BalanceAt(ctx, fromAddr, nil)
require.Nil(t, err)
// Ensure that withdrawal - gas fees are added to the L1 balance
// Fun fact, the fee is greater than the withdrawal amount
// NOTE: The gas fees include *both* the ProveWithdrawalTransaction and FinalizeWithdrawalTransaction transactions.
diff = new(big.Int).Sub(endBalance, startBalance)
fees = calcGasFees(proveReceipt.GasUsed+finalizeReceipt.GasUsed, tx.GasTipCap(), tx.GasFeeCap(), header.BaseFee)
withdrawAmount = withdrawAmount.Sub(withdrawAmount, fees)
require.Equal(t, withdrawAmount, diff)
}
// TestFees checks that L1/L2 fees are handled.
func TestFees(t *testing.T) {
parallel(t)
if !verboseGethNodes {
log.Root().SetHandler(log.DiscardHandler())
}
cfg := DefaultSystemConfig(t)
// TODO: after we have the system config contract and new op-geth L1 cost utils,
// we can pull in l1 costs into every e2e test and account for it in assertions easily etc.
cfg.DeployConfig.GasPriceOracleOverhead = 2100
cfg.DeployConfig.GasPriceOracleScalar = 1000_000
sys, err := cfg.Start()
require.Nil(t, err, "Error starting up system")
defer sys.Close()
l2Seq := sys.Clients["sequencer"]
l2Verif := sys.Clients["verifier"]
// Transactor Account