feat: auto-finalize batches on Alpha testnet (#791)

Co-authored-by: colinlyguo <colinlyguo@scroll.io>
Co-authored-by: maskpp <maskpp266@gmail.com>

.github/workflows/bridge.yml

@@ -66,3 +66,11 @@ jobs:
         if [ -n "$(git status --porcelain)" ]; then
           exit 1
         fi
+  # docker-build:
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - name: Checkout code
+  #     uses: actions/checkout@v2
+  #   - name: Set up Docker Buildx
+  #     uses: docker/setup-buildx-action@v2
+  #   - run: make docker

.github/workflows/coordinator.yml

@@ -62,3 +62,18 @@ jobs:
         if [ -n "$(git status --porcelain)" ]; then
           exit 1
         fi
+  # docker-build:
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - name: Checkout code
+  #     uses: actions/checkout@v2
+  #   - name: Set up Docker Buildx
+  #     uses: docker/setup-buildx-action@v2
+  #   - name: Build and push
+  #     uses: docker/build-push-action@v2
+  #     with:
+  #       context: .
+  #       file: ./build/dockerfiles/coordinator.Dockerfile
+  #       push: false
+  #       # cache-from: type=gha,scope=${{ github.workflow }}
+  #       # cache-to: type=gha,scope=${{ github.workflow }}

.github/workflows/docker.yaml

@@ -0,0 +1,65 @@
+name: Docker
+
+on:
+  push:
+    tags:
+      - v**
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    - name: Login to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Build and push coordinator docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/coordinator.Dockerfile
+        push: true
+        tags: scrolltech/coordinator:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push event_watcher docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/event_watcher.Dockerfile
+        push: true
+        tags: scrolltech/event-watcher:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push gas_oracle docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/gas_oracle.Dockerfile
+        push: true
+        tags: scrolltech/gas-oracle:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push msg_relayer docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/msg_relayer.Dockerfile
+        push: true
+        tags: scrolltech/msg-relayer:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push rollup_relayer docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/rollup_relayer.Dockerfile
+        push: true
+        tags: scrolltech/rollup-relayer:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}

Jenkinsfile

@@ -24,11 +24,12 @@ pipeline {
                     steps {
                         sh 'make dev_docker'
                         sh 'make -C bridge mock_abi'
+                        sh 'make -C common/bytecode all'
                     }
                 }
                 stage('Check Bridge Compilation') {
                     steps {
-                        sh 'make -C bridge bridge'
+                        sh 'make -C bridge bridge_bins'
                     }
                 }
                 stage('Check Coordinator Compilation') {
@@ -42,16 +43,6 @@ pipeline {
                         sh 'make -C database db_cli'
                     }
                 }
-                stage('Check Bridge Docker Build') {
-                    steps {
-                        sh 'make -C bridge docker'
-                    }
-                }
-                stage('Check Coordinator Docker Build') {
-                    steps {
-                        sh 'make -C coordinator docker'
-                    }
-                }
                 stage('Check Database Docker Build') {
                     steps {
                         sh 'make -C database docker'
@@ -68,12 +59,12 @@ pipeline {
                 }
                 stage('Race test bridge package') {
                     steps {
-                        sh 'go test -v -race -coverprofile=coverage.bridge.txt -covermode=atomic scroll-tech/bridge/...'
+                        sh "cd ./bridge && ../build/run_tests.sh bridge"
                     }
                 }
                 stage('Race test coordinator package') {
                     steps {
-                        sh 'go test -v -race -coverprofile=coverage.coordinator.txt -covermode=atomic scroll-tech/coordinator/...'
+                        sh "cd ./coordinator && ../build/run_tests.sh coordinator"
                     }
                 }
                 stage('Race test database package') {

README.md

@@ -1,3 +1,12 @@
 # Scroll Monorepo
 
 [![Contracts](https://github.com/scroll-tech/scroll/actions/workflows/contracts.yaml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/contracts.yaml) [![Bridge](https://github.com/scroll-tech/scroll/actions/workflows/bridge.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/bridge.yml) [![Coordinator](https://github.com/scroll-tech/scroll/actions/workflows/coordinator.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/coordinator.yml) [![Database](https://github.com/scroll-tech/scroll/actions/workflows/database.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/database.yml) [![Common](https://github.com/scroll-tech/scroll/actions/workflows/common.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/common.yml) [![Roller](https://github.com/scroll-tech/scroll/actions/workflows/roller.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/roller.yml)
+
+## Prerequisites
++ go1.18
++ rust (for version, see [rust-toolchain](./common/libzkp/impl/rust-toolchain))
++ hardhat / foundry
+
+---
+
+For a more comprehensive doc, see [`docs/`](./docs).

bridge/Makefile

@@ -8,8 +8,23 @@ mock_abi:
 	go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol mock_bridge/MockBridgeL1.sol --pkg mock_bridge --out mock_bridge/MockBridgeL1.go
 	go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol mock_bridge/MockBridgeL2.sol --pkg mock_bridge --out mock_bridge/MockBridgeL2.go
 
-bridge: ## Builds the Bridge instance.
-	go build -o $(PWD)/build/bin/bridge ./cmd
+bridge_bins: ## Builds the Bridge bins.
+	go build -o $(PWD)/build/bin/event_watcher ./cmd/event_watcher/
+	go build -o $(PWD)/build/bin/gas_oracle ./cmd/gas_oracle/
+	go build -o $(PWD)/build/bin/message_relayer ./cmd/msg_relayer/
+	go build -o $(PWD)/build/bin/rollup_relayer ./cmd/rollup_relayer/
+
+event_watcher: ## Builds the event_watcher bin
+	go build -o $(PWD)/build/bin/event_watcher ./cmd/event_watcher/
+
+gas_oracle: ## Builds the gas_oracle bin
+	go build -o $(PWD)/build/bin/gas_oracle ./cmd/gas_oracle/
+
+message_relayer: ## Builds the message_relayer bin
+	go build -o $(PWD)/build/bin/message_relayer ./cmd/msg_relayer/
+
+rollup_relayer: ## Builds the rollup_relayer bin
+	go build -o $(PWD)/build/bin/rollup_relayer ./cmd/rollup_relayer/
 
 test:
 	go test -v -race -coverprofile=coverage.txt -covermode=atomic -p 1 $(PWD)/...
@@ -20,8 +35,14 @@ lint: ## Lint the files - used for CI
 clean: ## Empty out the bin folder
 	@rm -rf build/bin
 
-docker:
-	DOCKER_BUILDKIT=1 docker build -t scrolltech/${IMAGE_NAME}:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/bridge.Dockerfile
-
 docker_push:
-	docker push scrolltech/${IMAGE_NAME}:${IMAGE_VERSION}
+	docker docker push scrolltech/gas-oracle:${IMAGE_VERSION}
+	docker docker push scrolltech/event-watcher:${IMAGE_VERSION}
+	docker docker push scrolltech/rollup-relayer:${IMAGE_VERSION}
+	docker docker push scrolltech/msg-relayer:${IMAGE_VERSION}
+
+docker:
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/gas-oracle:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/gas_oracle.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/event-watcher:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/event_watcher.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/rollup-relayer:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/rollup_relayer.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/msg-relayer:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/msg_relayer.Dockerfile

bridge/abi/bridge_abi.go

@@ -104,7 +104,7 @@ var L1MessageQueueMetaData = &bind.MetaData{
 
 // L2GasPriceOracleMetaData contains all meta data concerning the L2GasPriceOracle contract.
 var L2GasPriceOracleMetaData = &bind.MetaData{
-	ABI: "[{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"L2BaseFeeUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"overhead\",\"type\":\"uint256\"}],\"name\":\"OverheadUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"scalar\",\"type\":\"uint256\"}],\"name\":\"ScalarUpdated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"_message\",\"type\":\"bytes\"},{\"internalType\":\"uint256\",\"name\":\"_gasLimit\",\"type\":\"uint256\"}],\"name\":\"estimateCrossDomainMessageFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"getL1GasUsed\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l1BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l2BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"overhead\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"scalar\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"setL2BaseFee\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_overhead\",\"type\":\"uint256\"}],\"name\":\"setOverhead\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_scalar\",\"type\":\"uint256\"}],\"name\":\"setScalar\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]",
+	ABI: "[{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"L2BaseFeeUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"_oldWhitelist\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"_newWhitelist\",\"type\":\"address\"}],\"name\":\"UpdateWhitelist\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"\",\"type\":\"bytes\"},{\"internalType\":\"uint256\",\"name\":\"_gasLimit\",\"type\":\"uint256\"}],\"name\":\"estimateCrossDomainMessageFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l2BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"setL2BaseFee\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_newWhitelist\",\"type\":\"address\"}],\"name\":\"updateWhitelist\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"whitelist\",\"outputs\":[{\"internalType\":\"contract IWhitelist\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
 }
 
 // L2ScrollMessengerMetaData contains all meta data concerning the L2ScrollMessenger contract.

bridge/cmd/app/app.go

@@ -1,130 +0,0 @@
-package app
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"os/signal"
-
-	"github.com/scroll-tech/go-ethereum/log"
-	"github.com/urfave/cli/v2"
-
-	"scroll-tech/database"
-
-	"scroll-tech/common/metrics"
-	"scroll-tech/common/utils"
-	"scroll-tech/common/version"
-
-	"scroll-tech/bridge/config"
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
-)
-
-var (
-	app *cli.App
-)
-
-func init() {
-	// Set up Bridge app info.
-	app = cli.NewApp()
-
-	app.Action = action
-	app.Name = "bridge"
-	app.Usage = "The Scroll Bridge"
-	app.Version = version.Version
-	app.Flags = append(app.Flags, utils.CommonFlags...)
-	app.Flags = append(app.Flags, apiFlags...)
-
-	app.Before = func(ctx *cli.Context) error {
-		return utils.LogSetup(ctx)
-	}
-
-	// Register `bridge-test` app for integration-test.
-	utils.RegisterSimulation(app, "bridge-test")
-}
-
-func action(ctx *cli.Context) error {
-	// Load config file.
-	cfgFile := ctx.String(utils.ConfigFileFlag.Name)
-	cfg, err := config.NewConfig(cfgFile)
-	if err != nil {
-		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
-	}
-
-	// Start metrics server.
-	metrics.Serve(context.Background(), ctx)
-
-	// Init db connection.
-	var ormFactory database.OrmFactory
-	if ormFactory, err = database.NewOrmFactory(cfg.DBConfig); err != nil {
-		log.Crit("failed to init db connection", "err", err)
-	}
-
-	var (
-		l1Backend *l1.Backend
-		l2Backend *l2.Backend
-	)
-	// @todo change nil to actual client after https://scroll-tech/bridge/pull/40 merged
-	l1Backend, err = l1.New(ctx.Context, cfg.L1Config, ormFactory)
-	if err != nil {
-		return err
-	}
-	l2Backend, err = l2.New(ctx.Context, cfg.L2Config, ormFactory)
-	if err != nil {
-		return err
-	}
-	defer func() {
-		l1Backend.Stop()
-		l2Backend.Stop()
-		err = ormFactory.Close()
-		if err != nil {
-			log.Error("can not close ormFactory", "error", err)
-		}
-	}()
-
-	// Start all modules.
-	if err = l1Backend.Start(); err != nil {
-		log.Crit("couldn't start l1 backend", "error", err)
-	}
-	if err = l2Backend.Start(); err != nil {
-		log.Crit("couldn't start l2 backend", "error", err)
-	}
-
-	// Register api and start rpc service.
-	if ctx.Bool(httpEnabledFlag.Name) {
-		handler, addr, err := utils.StartHTTPEndpoint(
-			fmt.Sprintf(
-				"%s:%d",
-				ctx.String(httpListenAddrFlag.Name),
-				ctx.Int(httpPortFlag.Name)),
-			l2Backend.APIs())
-		if err != nil {
-			log.Crit("Could not start RPC api", "error", err)
-		}
-		defer func() {
-			_ = handler.Shutdown(ctx.Context)
-			log.Info("HTTP endpoint closed", "url", fmt.Sprintf("http://%v/", addr))
-		}()
-		log.Info("HTTP endpoint opened", "url", fmt.Sprintf("http://%v/", addr))
-	}
-
-	log.Info("Start bridge successfully")
-
-	// Catch CTRL-C to ensure a graceful shutdown.
-	interrupt := make(chan os.Signal, 1)
-	signal.Notify(interrupt, os.Interrupt)
-
-	// Wait until the interrupt signal is received from an OS signal.
-	<-interrupt
-
-	return nil
-}
-
-// Run run bridge cmd instance.
-func Run() {
-	// Run the bridge.
-	if err := app.Run(os.Args); err != nil {
-		_, _ = fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-}

bridge/cmd/app/app_test.go

@@ -1,19 +0,0 @@
-package app
-
-import (
-	"fmt"
-	"testing"
-	"time"
-
-	"scroll-tech/common/cmd"
-	"scroll-tech/common/version"
-)
-
-func TestRunBridge(t *testing.T) {
-	bridge := cmd.NewCmd("bridge-test", "--version")
-	defer bridge.WaitExit()
-
-	// wait result
-	bridge.ExpectWithTimeout(t, true, time.Second*3, fmt.Sprintf("bridge version %s", version.Version))
-	bridge.RunApp(nil)
-}

bridge/cmd/app/bridge_app.go

@@ -1,86 +0,0 @@
-package app
-
-import (
-	"encoding/json"
-	"fmt"
-	"os"
-	"testing"
-	"time"
-
-	"scroll-tech/common/cmd"
-	"scroll-tech/common/docker"
-	"scroll-tech/common/utils"
-
-	bridgeConfig "scroll-tech/bridge/config"
-)
-
-// BridgeApp bridge-test client manager.
-type BridgeApp struct {
-	Config *bridgeConfig.Config
-
-	base *docker.App
-
-	originFile string
-	bridgeFile string
-
-	name string
-	args []string
-	docker.AppAPI
-}
-
-// NewBridgeApp return a new bridgeApp manager.
-func NewBridgeApp(base *docker.App, file string) *BridgeApp {
-	bridgeFile := fmt.Sprintf("/tmp/%d_bridge-config.json", base.Timestamp)
-	bridgeApp := &BridgeApp{
-		base:       base,
-		name:       "bridge-test",
-		originFile: file,
-		bridgeFile: bridgeFile,
-		args:       []string{"--log.debug", "--config", bridgeFile},
-	}
-	if err := bridgeApp.MockConfig(true); err != nil {
-		panic(err)
-	}
-	return bridgeApp
-}
-
-// RunApp run bridge-test child process by multi parameters.
-func (b *BridgeApp) RunApp(t *testing.T, args ...string) {
-	b.AppAPI = cmd.NewCmd("bridge-test", append(b.args, args...)...)
-	b.AppAPI.RunApp(func() bool { return b.AppAPI.WaitResult(t, time.Second*20, "Start bridge successfully") })
-}
-
-// Free stop and release bridge-test.
-func (b *BridgeApp) Free() {
-	if !utils.IsNil(b.AppAPI) {
-		b.AppAPI.WaitExit()
-	}
-	_ = os.Remove(b.bridgeFile)
-}
-
-// MockConfig creates a new bridge config.
-func (b *BridgeApp) MockConfig(store bool) error {
-	base := b.base
-	// Load origin bridge config file.
-	cfg, err := bridgeConfig.NewConfig(b.originFile)
-	if err != nil {
-		return err
-	}
-
-	cfg.L1Config.Endpoint = base.L1gethImg.Endpoint()
-	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
-	cfg.L2Config.Endpoint = base.L2gethImg.Endpoint()
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
-	cfg.DBConfig.DSN = base.DBImg.Endpoint()
-	b.Config = cfg
-
-	if !store {
-		return nil
-	}
-	// Store changed bridge config into a temp file.
-	data, err := json.Marshal(b.Config)
-	if err != nil {
-		return err
-	}
-	return os.WriteFile(b.bridgeFile, data, 0600)
-}

bridge/cmd/app/flags.go

@@ -1,31 +0,0 @@
-package app
-
-import (
-	"github.com/urfave/cli/v2"
-)
-
-var (
-	apiFlags = []cli.Flag{
-		&httpEnabledFlag,
-		&httpListenAddrFlag,
-		&httpPortFlag,
-	}
-	// httpEnabledFlag enable rpc server.
-	httpEnabledFlag = cli.BoolFlag{
-		Name:  "http",
-		Usage: "Enable the HTTP-RPC server",
-		Value: false,
-	}
-	// httpListenAddrFlag set the http address.
-	httpListenAddrFlag = cli.StringFlag{
-		Name:  "http.addr",
-		Usage: "HTTP-RPC server listening interface",
-		Value: "localhost",
-	}
-	// httpPortFlag set http.port.
-	httpPortFlag = cli.IntFlag{
-		Name:  "http.port",
-		Usage: "HTTP-RPC server listening port",
-		Value: 8290,
-	}
-)

bridge/cmd/event_watcher/app/app.go

@@ -0,0 +1,114 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/watcher"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up event-watcher app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "event-watcher"
+	app.Usage = "The Scroll Event Watcher"
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+
+	// Register `event-watcher-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.EventWatcherApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+
+	subCtx, cancel := context.WithCancel(ctx.Context)
+	// Init db connection
+	var ormFactory database.OrmFactory
+	if ormFactory, err = database.NewOrmFactory(cfg.DBConfig); err != nil {
+		log.Crit("failed to init db connection", "err", err)
+	}
+
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l1 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, ormFactory)
+	l2watcher := watcher.NewL2WatcherClient(ctx.Context, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress, cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, ormFactory)
+
+	go cutils.Loop(subCtx, 10*time.Second, func() {
+		if loopErr := l1watcher.FetchContractEvent(); loopErr != nil {
+			log.Error("Failed to fetch bridge contract", "err", loopErr)
+		}
+	})
+
+	// Start l2 watcher process
+	go cutils.Loop(subCtx, 2*time.Second, l2watcher.FetchContractEvent)
+	// Finish start all l2 functions
+	log.Info("Start event-watcher successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run event watcher cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/event_watcher/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/event_watcher/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/gas_oracle/app/app.go

@@ -0,0 +1,136 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/utils"
+	"scroll-tech/bridge/watcher"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up gas-oracle app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "gas-oracle"
+	app.Usage = "The Scroll Gas Oracle"
+	app.Description = "Scroll Gas Oracle."
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+
+	// Register `gas-oracle-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.GasOracleApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+	subCtx, cancel := context.WithCancel(ctx.Context)
+	// Init db connection
+	var ormFactory database.OrmFactory
+	if ormFactory, err = database.NewOrmFactory(cfg.DBConfig); err != nil {
+		log.Crit("failed to init db connection", "err", err)
+	}
+
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l1 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	// Init l2geth connection
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, ormFactory)
+
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, ormFactory, cfg.L1Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, ormFactory, cfg.L2Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l2 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+	// Start l1 watcher process
+	go cutils.LoopWithContext(subCtx, 10*time.Second, func(ctx context.Context) {
+		number, loopErr := utils.GetLatestConfirmedBlockNumber(ctx, l1client, cfg.L1Config.Confirmations)
+		if loopErr != nil {
+			log.Error("failed to get block number", "err", loopErr)
+			return
+		}
+
+		if loopErr = l1watcher.FetchBlockHeader(number); loopErr != nil {
+			log.Error("Failed to fetch L1 block header", "lastest", number, "err", loopErr)
+		}
+	})
+
+	// Start l1relayer process
+	go cutils.Loop(subCtx, 10*time.Second, l1relayer.ProcessGasPriceOracle)
+	go cutils.Loop(subCtx, 2*time.Second, l2relayer.ProcessGasPriceOracle)
+
+	// Finish start all message relayer functions
+	log.Info("Start gas-oracle successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run message_relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/gas_oracle/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/gas_oracle/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/main.go

@@ -1,7 +0,0 @@
-package main
-
-import "scroll-tech/bridge/cmd/app"
-
-func main() {
-	app.Run()
-}

bridge/cmd/mock_app.go

@@ -0,0 +1,106 @@
+package app
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"scroll-tech/common/cmd"
+	"scroll-tech/common/docker"
+	"scroll-tech/common/utils"
+
+	"scroll-tech/bridge/config"
+)
+
+// MockApp mockApp-test client manager.
+type MockApp struct {
+	Config *config.Config
+	base   *docker.App
+
+	mockApps map[utils.MockAppName]docker.AppAPI
+
+	originFile string
+	bridgeFile string
+
+	args []string
+}
+
+// NewBridgeApp return a new bridgeApp manager, name mush be one them.
+func NewBridgeApp(base *docker.App, file string) *MockApp {
+
+	bridgeFile := fmt.Sprintf("/tmp/%d_bridge-config.json", base.Timestamp)
+	bridgeApp := &MockApp{
+		base:       base,
+		mockApps:   make(map[utils.MockAppName]docker.AppAPI),
+		originFile: file,
+		bridgeFile: bridgeFile,
+		args:       []string{"--log.debug", "--config", bridgeFile},
+	}
+	if err := bridgeApp.MockConfig(true); err != nil {
+		panic(err)
+	}
+	return bridgeApp
+}
+
+// RunApp run bridge-test child process by multi parameters.
+func (b *MockApp) RunApp(t *testing.T, name utils.MockAppName, args ...string) {
+	if !(name == utils.EventWatcherApp ||
+		name == utils.GasOracleApp ||
+		name == utils.MessageRelayerApp ||
+		name == utils.RollupRelayerApp) {
+		t.Errorf(fmt.Sprintf("Don't support the mock app, name: %s", name))
+		return
+	}
+
+	if app, ok := b.mockApps[name]; ok {
+		t.Logf(fmt.Sprintf("%s already exist, free the current and recreate again", string(name)))
+		app.WaitExit()
+	}
+	appAPI := cmd.NewCmd(string(name), append(b.args, args...)...)
+	keyword := fmt.Sprintf("Start %s successfully", string(name)[:len(string(name))-len("-test")])
+	appAPI.RunApp(func() bool { return appAPI.WaitResult(t, time.Second*20, keyword) })
+	b.mockApps[name] = appAPI
+}
+
+// WaitExit wait util all processes exit.
+func (b *MockApp) WaitExit() {
+	for _, app := range b.mockApps {
+		app.WaitExit()
+	}
+	b.mockApps = make(map[utils.MockAppName]docker.AppAPI)
+}
+
+// Free stop and release bridge mocked apps.
+func (b *MockApp) Free() {
+	b.WaitExit()
+	_ = os.Remove(b.bridgeFile)
+}
+
+// MockConfig creates a new bridge config.
+func (b *MockApp) MockConfig(store bool) error {
+	base := b.base
+	// Load origin bridge config file.
+	cfg, err := config.NewConfig(b.originFile)
+	if err != nil {
+		return err
+	}
+
+	cfg.L1Config.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L2Config.Endpoint = base.L2gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.DBConfig.DSN = base.DBImg.Endpoint()
+	b.Config = cfg
+
+	if !store {
+		return nil
+	}
+	// Store changed bridge config into a temp file.
+	data, err := json.Marshal(b.Config)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(b.bridgeFile, data, 0600)
+}

bridge/cmd/msg_relayer/app/app.go

@@ -0,0 +1,118 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up message-relayer app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "message-relayer"
+	app.Usage = "The Scroll Message Relayer"
+	app.Description = "Message Relayer contains two main service: 1) relay l1 message to l2. 2) relay l2 message to l1."
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+
+	// Register `message-relayer-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.MessageRelayerApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+	subCtx, cancel := context.WithCancel(ctx.Context)
+
+	// Init db connection
+	var ormFactory database.OrmFactory
+	if ormFactory, err = database.NewOrmFactory(cfg.DBConfig); err != nil {
+		log.Crit("failed to init db connection", "err", err)
+	}
+
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	// Init l2geth connection
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, ormFactory, cfg.L1Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, ormFactory, cfg.L2Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l2 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	// Start l1relayer process
+	go cutils.Loop(subCtx, 10*time.Second, l1relayer.ProcessSavedEvents)
+
+	// Start l2relayer process
+	go cutils.Loop(subCtx, 2*time.Second, l2relayer.ProcessSavedEvents)
+
+	// Finish start all message relayer functions
+	log.Info("Start message-relayer successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run message_relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/msg_relayer/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/msg_relayer/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/rollup_relayer/app/app.go

@@ -0,0 +1,133 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/utils"
+	"scroll-tech/bridge/watcher"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up rollup-relayer app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "rollup-relayer"
+	app.Usage = "The Scroll Rollup Relayer"
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+	// Register `rollup-relayer-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.RollupRelayerApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+
+	subCtx, cancel := context.WithCancel(ctx.Context)
+
+	// init db connection
+	var ormFactory database.OrmFactory
+	if ormFactory, err = database.NewOrmFactory(cfg.DBConfig); err != nil {
+		log.Crit("failed to init db connection", "err", err)
+	}
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	// Init l2geth connection
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, ormFactory, cfg.L2Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create l2 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	batchProposer := watcher.NewBatchProposer(subCtx, cfg.L2Config.BatchProposerConfig, l2relayer, ormFactory)
+	if err != nil {
+		log.Error("failed to create batchProposer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l2watcher := watcher.NewL2WatcherClient(subCtx, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress, cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, ormFactory)
+
+	// Watcher loop to fetch missing blocks
+	go cutils.LoopWithContext(subCtx, 2*time.Second, func(ctx context.Context) {
+		number, loopErr := utils.GetLatestConfirmedBlockNumber(ctx, l2client, cfg.L2Config.Confirmations)
+		if loopErr != nil {
+			log.Error("failed to get block number", "err", loopErr)
+			return
+		}
+		l2watcher.TryFetchRunningMissingBlocks(ctx, number)
+	})
+
+	// Batch proposer loop
+	go cutils.Loop(subCtx, 2*time.Second, func() {
+		batchProposer.TryProposeBatch()
+		batchProposer.TryCommitBatches()
+	})
+
+	go cutils.Loop(subCtx, 2*time.Second, l2relayer.ProcessCommittedBatches)
+
+	// Finish start all rollup relayer functions.
+	log.Info("Start rollup-relayer successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run rollup relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/rollup_relayer/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/rollup_relayer/app"
+
+func main() {
+	app.Run()
+}

bridge/config.json

@@ -19,7 +19,8 @@
         "escalate_multiple_den": 10,
         "max_gas_price": 10000000000,
         "tx_type": "LegacyTx",
-        "min_balance": 100000000000000000000
+        "min_balance": 100000000000000000000,
+        "pending_limit": 10
       },
       "gas_oracle_config": {
         "min_gas_price": 0,
@@ -27,13 +28,10 @@
       },
       "finalize_batch_interval_sec": 0,
       "message_sender_private_keys": [
-        "1212121212121212121212121212121212121212121212121212121212121213"
+        "1212121212121212121212121212121212121212121212121212121212121212"
       ],
       "gas_oracle_sender_private_keys": [
-        "1212121212121212121212121212121212121212121212121212121212121215"
-      ],
-      "rollup_sender_private_keys": [
-        "1212121212121212121212121212121212121212121212121212121212121214"
+        "1212121212121212121212121212121212121212121212121212121212121212"
       ]
     }
   },
@@ -56,7 +54,8 @@
         "escalate_multiple_den": 10,
         "max_gas_price": 10000000000,
         "tx_type": "LegacyTx",
-        "min_balance": 100000000000000000000
+        "min_balance": 100000000000000000000,
+        "pending_limit": 10
       },
       "gas_oracle_config": {
         "min_gas_price": 0,
@@ -64,13 +63,13 @@
       },
       "finalize_batch_interval_sec": 0,
       "message_sender_private_keys": [
-        "1212121212121212121212121212121212121212121212121212121212121213"
+        "1212121212121212121212121212121212121212121212121212121212121212"
       ],
       "gas_oracle_sender_private_keys": [
-        "1212121212121212121212121212121212121212121212121212121212121215"
+        "1212121212121212121212121212121212121212121212121212121212121212"
       ],
       "rollup_sender_private_keys": [
-        "1212121212121212121212121212121212121212121212121212121212121214"
+        "1212121212121212121212121212121212121212121212121212121212121212"
       ]
     },
     "batch_proposer_config": {

bridge/config/config_test.go

@@ -1,4 +1,4 @@
-package config_test
+package config
 
 import (
 	"encoding/json"
@@ -8,30 +8,48 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/bridge/config"
 )
 
 func TestConfig(t *testing.T) {
-	cfg, err := config.NewConfig("../config.json")
-	assert.True(t, assert.NoError(t, err), "failed to load config")
+	t.Run("Success Case", func(t *testing.T) {
+		cfg, err := NewConfig("../config.json")
+		assert.NoError(t, err, "failed to load config")
 
-	assert.Equal(t, 1, len(cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys))
-	assert.Equal(t, 1, len(cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys))
-	assert.Equal(t, 1, len(cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys))
+		assert.Len(t, cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys, 1)
+		assert.Len(t, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys, 1)
+		assert.Len(t, cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys, 1)
 
-	data, err := json.Marshal(cfg)
-	assert.NoError(t, err)
+		data, err := json.Marshal(cfg)
+		assert.NoError(t, err)
 
-	tmpJosn := fmt.Sprintf("/tmp/%d_bridge_config.json", time.Now().Nanosecond())
-	defer func() { _ = os.Remove(tmpJosn) }()
+		tmpJSON := fmt.Sprintf("/tmp/%d_bridge_config.json", time.Now().Nanosecond())
+		defer func() { _ = os.Remove(tmpJSON) }()
 
-	assert.NoError(t, os.WriteFile(tmpJosn, data, 0644))
+		assert.NoError(t, os.WriteFile(tmpJSON, data, 0644))
 
-	cfg2, err := config.NewConfig(tmpJosn)
-	assert.NoError(t, err)
+		cfg2, err := NewConfig(tmpJSON)
+		assert.NoError(t, err)
 
-	assert.Equal(t, cfg.L1Config, cfg2.L1Config)
-	assert.Equal(t, cfg.L2Config, cfg2.L2Config)
-	assert.Equal(t, cfg.DBConfig, cfg2.DBConfig)
+		assert.Equal(t, cfg.L1Config, cfg2.L1Config)
+		assert.Equal(t, cfg.L2Config, cfg2.L2Config)
+		assert.Equal(t, cfg.DBConfig, cfg2.DBConfig)
+	})
+
+	t.Run("File Not Found", func(t *testing.T) {
+		_, err := NewConfig("non_existent_file.json")
+		assert.ErrorIs(t, err, os.ErrNotExist)
+	})
+
+	t.Run("Invalid JSON Content", func(t *testing.T) {
+		// Create a temporary file with invalid JSON content
+		tempFile, err := os.CreateTemp("", "invalid_json_config.json")
+		assert.NoError(t, err)
+		defer os.Remove(tempFile.Name())
+
+		_, err = tempFile.WriteString("{ invalid_json: ")
+		assert.NoError(t, err)
+
+		_, err = NewConfig(tempFile.Name())
+		assert.Error(t, err)
+	})
 }

bridge/config/relayer_config.go

@@ -30,9 +30,11 @@ type SenderConfig struct {
 	// The transaction type to use: LegacyTx, AccessListTx, DynamicFeeTx
 	TxType string `json:"tx_type"`
 	// The min balance set for check and set balance for sender's accounts.
-	MinBalance *big.Int `json:"min_balance,omitempty"`
+	MinBalance *big.Int `json:"min_balance"`
 	// The interval (in seconds) to check balance and top up sender's accounts
 	CheckBalanceTime uint64 `json:"check_balance_time"`
+	// The sender's pending count limit.
+	PendingLimit int `json:"pending_limit,omitempty"`
 }
 
 // RelayerConfig loads relayer configuration items.

bridge/go.mod

@@ -3,8 +3,11 @@ module scroll-tech/bridge
 go 1.18
 
 require (
+	github.com/agiledragon/gomonkey/v2 v2.9.0
 	github.com/orcaman/concurrent-map v1.0.0
+	github.com/orcaman/concurrent-map/v2 v2.0.1
 	github.com/scroll-tech/go-ethereum v1.10.14-0.20230321020420-127af384ed04
+	github.com/smartystreets/goconvey v1.8.0
 	github.com/stretchr/testify v1.8.2
 	github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa
 	golang.org/x/sync v0.1.0
@@ -20,22 +23,30 @@ require (
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/google/uuid v1.3.0 // indirect
+	github.com/gopherjs/gopherjs v1.17.2 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
-	github.com/holiman/uint256 v1.2.0 // indirect
 	github.com/iden3/go-iden3-crypto v0.0.14 // indirect
+	github.com/jtolds/gls v4.20.0+incompatible // indirect
+	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/scroll-tech/zktrie v0.5.2 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
-	github.com/tklauser/go-sysconf v0.3.10 // indirect
-	github.com/tklauser/numcpus v0.4.0 // indirect
+	github.com/smartystreets/assertions v1.13.1 // indirect
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/tklauser/numcpus v0.6.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.2 // indirect
 	golang.org/x/crypto v0.7.0 // indirect
-	golang.org/x/sys v0.6.0 // indirect
+	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/time v0.1.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

bridge/go.sum

@@ -1,5 +1,7 @@
 github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c3fqvvgKm5o=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
+github.com/agiledragon/gomonkey/v2 v2.9.0 h1:PDiKKybR596O6FHW+RVSG0Z7uGCBNbmbUXh3uCNQ7Hc=
+github.com/agiledragon/gomonkey/v2 v2.9.0/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
 github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
@@ -33,13 +35,15 @@ github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
+github.com/gopherjs/gopherjs v1.17.2/go.mod h1:pRRIvn/QzFLrKfvEz3qUuEhtE/zLCWfreZ6J5gM2i+k=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/hashicorp/go-bexpr v0.1.10 h1:9kuI5PFotCboP3dkDYFr/wi0gg0QVbSNz5oFRpxn4uE=
 github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d h1:dg1dEPuWpEqDnvIw251EVy4zlP8gWbsGj4BsUKCRpYs=
 github.com/holiman/bloomfilter/v2 v2.0.3 h1:73e0e/V0tCydx14a0SCYS/EWCxgwLZ18CZcZKVu0fao=
 github.com/holiman/uint256 v1.2.0 h1:gpSYcPLWGv4sG43I2mVLiDZCNDh/EpGjSk8tmtxitHM=
-github.com/holiman/uint256 v1.2.0/go.mod h1:y4ga/t+u+Xwd7CpDgZESaRcWy0I7XMlTMA25ApIH5Jw=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/huin/goupnp v1.0.3 h1:N8No57ls+MnjlB+JPiCVSOyy/ot7MJTqlo7rn+NYSqQ=
 github.com/iden3/go-iden3-crypto v0.0.14 h1:HQnFchY735JRNQxof6n/Vbyon4owj4+Ku+LNAamWV6c=
@@ -47,6 +51,8 @@ github.com/iden3/go-iden3-crypto v0.0.14/go.mod h1:dLpM4vEPJ3nDHzhWFXDjzkn1qHoBe
 github.com/jackpal/go-nat-pmp v1.0.2 h1:KzKSgb7qkJvOUTqYl9/Hg/me3pWgBmERKrTGD7BdWus=
 github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ=
+github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
+github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -55,8 +61,10 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/leanovate/gopter v0.2.9 h1:fQjYxZaynp97ozCzfOyOuAGOU4aU/z37zf/tOujFk7c=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
-github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
+github.com/mattn/go-isatty v0.0.18 h1:DOKFKCQ7FNG2L1rbrmstDN4QVRdS89Nkh85u68Uwp98=
+github.com/mattn/go-isatty v0.0.18/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
+github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/pointerstructure v1.2.0 h1:O+i9nHnXS3l/9Wu7r4NrEdwA2VFTicjUEN1uBnDo34A=
@@ -66,15 +74,21 @@ github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/orcaman/concurrent-map v1.0.0 h1:I/2A2XPCb4IuQWcQhBhSwGfiuybl/J0ev9HDbW65HOY=
 github.com/orcaman/concurrent-map v1.0.0/go.mod h1:Lu3tH6HLW3feq74c2GC+jIMS/K2CFcDWnWD9XkenwhI=
+github.com/orcaman/concurrent-map/v2 v2.0.1 h1:jOJ5Pg2w1oeB6PeDurIYf6k9PQ+aTITr/6lP/L/zp6c=
+github.com/orcaman/concurrent-map/v2 v2.0.1/go.mod h1:9Eq3TG2oBe5FirmYWQfYO5iH1q0Jv47PLaNK++uCdOM=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
+github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rjeczalik/notify v0.9.1 h1:CLCKso/QK1snAlnhNR/CNvNiFU2saUtjV0bx3EwNeCE=
 github.com/rjeczalik/notify v0.9.1/go.mod h1:rKwnCoCGeuQnwBtTSPL9Dad03Vh2n40ePRrjvIXnJho=
-github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
@@ -84,6 +98,12 @@ github.com/scroll-tech/zktrie v0.5.2 h1:U34jPXMLGOlRHfdvYp5VVgOcC0RuPeJmcS3bWotC
 github.com/scroll-tech/zktrie v0.5.2/go.mod h1:XvNo7vAk8yxNyTjBDj5WIiFzYW4bx/gJ78+NK6Zn6Uk=
 github.com/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
 github.com/shirou/gopsutil v3.21.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/assertions v1.13.1 h1:Ef7KhSmjZcK6AVf9YbJdvPYG9avaF0ZxudX+ThRdWfU=
+github.com/smartystreets/assertions v1.13.1/go.mod h1:cXr/IwVfSo/RbCSPhoAPv73p3hlSdrBH/b3SdnW/LMY=
+github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
+github.com/smartystreets/goconvey v1.8.0 h1:Oi49ha/2MURE0WexF052Z0m+BNSGirfjg5RL+JXWq3w=
+github.com/smartystreets/goconvey v1.8.0/go.mod h1:EdX8jtrTIj26jmjCOVNMVSIYAtgexqXKHOXW2Dx9JLg=
 github.com/status-im/keycard-go v0.2.0 h1:QDLFswOQu1r5jsycloeQh3bVU8n/NatHHaZobtDnDzA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
@@ -93,10 +113,10 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
 github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70Z7CTTCmYQn2CKbY8j86K7/FAIr141uY=
-github.com/tklauser/go-sysconf v0.3.10 h1:IJ1AZGZRWbY8T5Vfk04D9WOA5WSejdflXxP03OUqALw=
-github.com/tklauser/go-sysconf v0.3.10/go.mod h1:C8XykCvCb+Gn0oNCWPIlcb0RuglQTYaQ2hGm7jmxEFk=
-github.com/tklauser/numcpus v0.4.0 h1:E53Dm1HjH1/R2/aoCtXtPgzmElmn51aOkhCFSuZq//o=
-github.com/tklauser/numcpus v0.4.0/go.mod h1:1+UI3pD8NW14VMwdgJNJ1ESk2UnwhAnz5hMwiKKqXCQ=
+github.com/tklauser/go-sysconf v0.3.11 h1:89WgdJhk5SNwJfu+GKyYveZ4IaJ7xAkecBo+KdJV0CM=
+github.com/tklauser/go-sysconf v0.3.11/go.mod h1:GqXfhXY3kiPa0nAXPDIQIWzJbMCB7AmcWpGR8lSZfqI=
+github.com/tklauser/numcpus v0.6.0 h1:kebhY2Qt+3U6RNK7UqpYNA+tJ23IBEGKkB7JQBfDYms=
+github.com/tklauser/numcpus v0.6.0/go.mod h1:FEZLMke0lhOUG6w2JadTzp0a+Nl8PF/GFkQ5UVIcaL4=
 github.com/tyler-smith/go-bip39 v1.1.0 h1:5eUemwrMargf3BSLRRCalXT93Ns6pQJIjYQN2nyfOP8=
 github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa h1:5SqCsI/2Qya2bCzK15ozrqo2sZxkh0FHynJZOTVoV6Q=
 github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa/go.mod h1:1CNUng3PtjQMtRzJO4FMXBQvkGtuYRxxiR9xMa7jMwI=
@@ -105,20 +125,27 @@ github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsr
 github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
+golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
-golang.org/x/time v0.0.0-20220922220347-f3bd1da661af h1:Yx9k8YCG3dvF87UAn2tu2HQLf2dt/eR1bXxpLMWeH+Y=
+golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/time v0.1.0 h1:xYY+Bajn2a7VBmTM5GikTmnK8ZuX8YgnQCqZpbBNtmA=
+golang.org/x/time v0.1.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

bridge/l1/backend.go

@@ -1,55 +0,0 @@
-package l1
-
-import (
-	"context"
-
-	"github.com/scroll-tech/go-ethereum/ethclient"
-
-	"scroll-tech/database"
-
-	"scroll-tech/bridge/config"
-)
-
-// Backend manage the resources and services of L1 backend.
-// The backend should monitor events in layer 1 and relay transactions to layer 2
-type Backend struct {
-	cfg     *config.L1Config
-	watcher *Watcher
-	relayer *Layer1Relayer
-	orm     database.OrmFactory
-}
-
-// New returns a new instance of Backend.
-func New(ctx context.Context, cfg *config.L1Config, orm database.OrmFactory) (*Backend, error) {
-	client, err := ethclient.Dial(cfg.Endpoint)
-	if err != nil {
-		return nil, err
-	}
-
-	relayer, err := NewLayer1Relayer(ctx, orm, cfg.RelayerConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	watcher := NewWatcher(ctx, client, cfg.StartHeight, cfg.Confirmations, cfg.L1MessengerAddress, cfg.L1MessageQueueAddress, cfg.ScrollChainContractAddress, orm)
-
-	return &Backend{
-		cfg:     cfg,
-		watcher: watcher,
-		relayer: relayer,
-		orm:     orm,
-	}, nil
-}
-
-// Start Backend module.
-func (l1 *Backend) Start() error {
-	l1.watcher.Start()
-	l1.relayer.Start()
-	return nil
-}
-
-// Stop Backend module.
-func (l1 *Backend) Stop() {
-	l1.watcher.Stop()
-	l1.relayer.Stop()
-}

bridge/l1/l1_test.go

@@ -1,33 +0,0 @@
-package l1
-
-import (
-	"testing"
-
-	"scroll-tech/common/docker"
-
-	"scroll-tech/bridge/config"
-)
-
-var (
-	// config
-	cfg *config.Config
-
-	// docker consider handler.
-	base *docker.App
-)
-
-func TestMain(m *testing.M) {
-	base = docker.NewDockerApp()
-	var err error
-	cfg, err = config.NewConfig("../config.json")
-	if err != nil {
-		panic(err)
-	}
-	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
-	cfg.DBConfig = base.DBConfig
-
-	m.Run()
-
-	base.Free()
-}

bridge/l1/relayer_test.go

@@ -1,29 +0,0 @@
-package l1
-
-import (
-	"context"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/database/migrate"
-
-	"scroll-tech/database"
-)
-
-// TestCreateNewL1Relayer test create new relayer instance and stop
-func TestCreateNewL1Relayer(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
-	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	relayer.Start()
-}

bridge/l1/watcher_test.go

@@ -1,32 +0,0 @@
-package l1
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-)
-
-func TestStartWatcher(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	client, err := base.L1Client()
-	assert.NoError(t, err)
-
-	l1Cfg := cfg.L1Config
-
-	watcher := NewWatcher(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
-	watcher.Start()
-	time.Sleep(time.Millisecond * 500)
-	defer watcher.Stop()
-}

bridge/l2/backend.go

@@ -1,76 +0,0 @@
-package l2
-
-import (
-	"context"
-
-	"github.com/scroll-tech/go-ethereum/ethclient"
-	"github.com/scroll-tech/go-ethereum/rpc"
-
-	"scroll-tech/database"
-
-	"scroll-tech/bridge/config"
-)
-
-// Backend manage the resources and services of L2 backend.
-// The backend should monitor events in layer 2 and relay transactions to layer 1
-type Backend struct {
-	cfg           *config.L2Config
-	watcher       *WatcherClient
-	relayer       *Layer2Relayer
-	batchProposer *BatchProposer
-	orm           database.OrmFactory
-}
-
-// New returns a new instance of Backend.
-func New(ctx context.Context, cfg *config.L2Config, orm database.OrmFactory) (*Backend, error) {
-	client, err := ethclient.Dial(cfg.Endpoint)
-	if err != nil {
-		return nil, err
-	}
-
-	// Note: initialize watcher before relayer to keep DB consistent.
-	// Otherwise, there will be a race condition between watcher.initializeGenesis and relayer.ProcessPendingBatches.
-	watcher := NewL2WatcherClient(ctx, client, cfg.Confirmations, cfg.L2MessengerAddress, cfg.L2MessageQueueAddress, cfg.WithdrawTrieRootSlot, orm)
-
-	relayer, err := NewLayer2Relayer(ctx, client, orm, cfg.RelayerConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	batchProposer := NewBatchProposer(ctx, cfg.BatchProposerConfig, relayer, orm)
-
-	return &Backend{
-		cfg:           cfg,
-		watcher:       watcher,
-		relayer:       relayer,
-		batchProposer: batchProposer,
-		orm:           orm,
-	}, nil
-}
-
-// Start Backend module.
-func (l2 *Backend) Start() error {
-	l2.watcher.Start()
-	l2.relayer.Start()
-	l2.batchProposer.Start()
-	return nil
-}
-
-// Stop Backend module.
-func (l2 *Backend) Stop() {
-	l2.batchProposer.Stop()
-	l2.relayer.Stop()
-	l2.watcher.Stop()
-}
-
-// APIs collect API modules.
-func (l2 *Backend) APIs() []rpc.API {
-	return []rpc.API{
-		{
-			Namespace: "l2",
-			Version:   "1.0",
-			Service:   WatcherAPI(l2.watcher),
-			Public:    true,
-		},
-	}
-}

bridge/l2/batch_proposer_test.go

@@ -1,122 +0,0 @@
-package l2
-
-import (
-	"context"
-	"fmt"
-	"math"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-
-	"scroll-tech/bridge/config"
-
-	"scroll-tech/common/types"
-)
-
-func TestBatchProposerProposeBatch(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	// Insert traces into db.
-	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock1}))
-
-	l2cfg := cfg.L2Config
-	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
-	wc.Start()
-	defer wc.Stop()
-
-	batch, err := db.GetLatestBatch()
-	assert.NoError(t, err)
-
-	// Create a new batch.
-	batchData := types.NewBatchData(&types.BlockBatch{
-		Index:     0,
-		Hash:      batch.Hash,
-		StateRoot: batch.StateRoot,
-	}, []*types.WrappedBlock{wrappedBlock1}, nil)
-
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
-	assert.NoError(t, err)
-
-	proposer := NewBatchProposer(context.Background(), &config.BatchProposerConfig{
-		ProofGenerationFreq: 1,
-		BatchGasThreshold:   3000000,
-		BatchTxNumThreshold: 135,
-		BatchTimeSec:        1,
-		BatchBlocksLimit:    100,
-	}, relayer, db)
-	proposer.tryProposeBatch()
-
-	infos, err := db.GetUnbatchedL2Blocks(map[string]interface{}{},
-		fmt.Sprintf("order by number ASC LIMIT %d", 100))
-	assert.NoError(t, err)
-	assert.Equal(t, 0, len(infos))
-
-	exist, err := db.BatchRecordExist(batchData.Hash().Hex())
-	assert.NoError(t, err)
-	assert.Equal(t, true, exist)
-}
-
-func TestBatchProposerGracefulRestart(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
-	assert.NoError(t, err)
-
-	// Insert traces into db.
-	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock2}))
-
-	// Insert block batch into db.
-	dbTx, err := db.Beginx()
-	assert.NoError(t, err)
-	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
-	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData2))
-	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{
-		batchData1.Batch.Blocks[0].BlockNumber}, batchData1.Hash().Hex()))
-	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{
-		batchData2.Batch.Blocks[0].BlockNumber}, batchData2.Hash().Hex()))
-	assert.NoError(t, dbTx.Commit())
-
-	assert.NoError(t, db.UpdateRollupStatus(context.Background(), batchData1.Hash().Hex(), types.RollupFinalized))
-
-	batchHashes, err := db.GetPendingBatches(math.MaxInt32)
-	assert.NoError(t, err)
-	assert.Equal(t, 1, len(batchHashes))
-	assert.Equal(t, batchData2.Hash().Hex(), batchHashes[0])
-	// test p.recoverBatchDataBuffer().
-	_ = NewBatchProposer(context.Background(), &config.BatchProposerConfig{
-		ProofGenerationFreq: 1,
-		BatchGasThreshold:   3000000,
-		BatchTxNumThreshold: 135,
-		BatchTimeSec:        1,
-		BatchBlocksLimit:    100,
-	}, relayer, db)
-
-	batchHashes, err = db.GetPendingBatches(math.MaxInt32)
-	assert.NoError(t, err)
-	assert.Equal(t, 0, len(batchHashes))
-
-	exist, err := db.BatchRecordExist(batchData2.Hash().Hex())
-	assert.NoError(t, err)
-	assert.Equal(t, true, exist)
-}

bridge/l2/check_trace.go

@@ -1,99 +0,0 @@
-package l2
-
-import (
-	"fmt"
-
-	"golang.org/x/sync/errgroup"
-
-	"github.com/scroll-tech/go-ethereum/core/types"
-	"github.com/scroll-tech/go-ethereum/core/vm"
-	"github.com/scroll-tech/go-ethereum/log"
-)
-
-//nolint:unused
-func blockTraceIsValid(trace *types.BlockTrace) bool {
-	if trace == nil {
-		log.Warn("block trace is empty")
-		return false
-	}
-	flag := true
-	for _, tx := range trace.ExecutionResults {
-		flag = structLogResIsValid(tx.StructLogs) && flag
-	}
-	return flag
-}
-
-//nolint:unused
-func structLogResIsValid(txLogs []*types.StructLogRes) bool {
-	res := true
-	for i := 0; i < len(txLogs); i++ {
-		txLog := txLogs[i]
-		flag := true
-		switch vm.StringToOp(txLog.Op) {
-		case vm.CALL, vm.CALLCODE:
-			flag = codeIsValid(txLog, 2) && flag
-			flag = stateIsValid(txLog, 2) && flag
-		case vm.DELEGATECALL, vm.STATICCALL:
-			flag = codeIsValid(txLog, 2) && flag
-		case vm.CREATE, vm.CREATE2:
-			flag = stateIsValid(txLog, 1) && flag
-		case vm.SLOAD, vm.SSTORE, vm.SELFBALANCE:
-			flag = stateIsValid(txLog, 1) && flag
-		case vm.SELFDESTRUCT:
-			flag = stateIsValid(txLog, 2) && flag
-		case vm.EXTCODEHASH, vm.BALANCE:
-			flag = stateIsValid(txLog, 1) && flag
-		}
-		res = res && flag
-	}
-
-	return res
-}
-
-//nolint:unused
-func codeIsValid(txLog *types.StructLogRes, n int) bool {
-	extraData := txLog.ExtraData
-	if extraData == nil {
-		log.Warn("extraData is empty", "pc", txLog.Pc, "opcode", txLog.Op)
-		return false
-	} else if len(extraData.CodeList) < n {
-		log.Warn("code list is too short", "opcode", txLog.Op, "expect length", n, "actual length", len(extraData.CodeList))
-		return false
-	}
-	return true
-}
-
-//nolint:unused
-func stateIsValid(txLog *types.StructLogRes, n int) bool {
-	extraData := txLog.ExtraData
-	if extraData == nil {
-		log.Warn("extraData is empty", "pc", txLog.Pc, "opcode", txLog.Op)
-		return false
-	} else if len(extraData.StateList) < n {
-		log.Warn("stateList list is too short", "opcode", txLog.Op, "expect length", n, "actual length", len(extraData.StateList))
-		return false
-	}
-	return true
-}
-
-// TraceHasUnsupportedOpcodes check if exist unsupported opcodes
-func TraceHasUnsupportedOpcodes(opcodes map[string]struct{}, trace *types.BlockTrace) bool {
-	if trace == nil {
-		return false
-	}
-	eg := errgroup.Group{}
-	for _, res := range trace.ExecutionResults {
-		res := res
-		eg.Go(func() error {
-			for _, lg := range res.StructLogs {
-				if _, ok := opcodes[lg.Op]; ok {
-					return fmt.Errorf("unsupported opcde: %s", lg.Op)
-				}
-			}
-			return nil
-		})
-	}
-
-	err := eg.Wait()
-	return err != nil
-}

bridge/l2/l2_test.go

@@ -1,72 +0,0 @@
-package l2
-
-import (
-	"testing"
-
-	"scroll-tech/common/testdata"
-
-	"scroll-tech/common/docker"
-	"scroll-tech/common/types"
-
-	"scroll-tech/bridge/config"
-)
-
-var (
-	// config
-	cfg *config.Config
-
-	base *docker.App
-
-	// block trace
-	wrappedBlock1 *types.WrappedBlock
-	wrappedBlock2 *types.WrappedBlock
-
-	// batch data
-	batchData1 *types.BatchData
-	batchData2 *types.BatchData
-)
-
-func init() {
-	trace02 := testdata.GetTrace("../../common/testdata/blockTrace_02.json")
-	wrappedBlock1 = &types.WrappedBlock{
-		Header:           trace02.Header,
-		Transactions:     trace02.Transactions,
-		WithdrawTrieRoot: trace02.WithdrawTrieRoot,
-	}
-	batchData1 = types.NewBatchData(&types.BlockBatch{
-		Index:     0,
-		Hash:      "0x0cc6b102c2924402c14b2e3a19baccc316252bfdc44d9ec62e942d34e39ec729",
-		StateRoot: "0x2579122e8f9ec1e862e7d415cef2fb495d7698a8e5f0dddc5651ba4236336e7d",
-	}, []*types.WrappedBlock{wrappedBlock1}, nil)
-
-	trace03 := testdata.GetTrace("../../common/testdata/blockTrace_03.json")
-	wrappedBlock2 = &types.WrappedBlock{
-		Header:           trace03.Header,
-		Transactions:     trace03.Transactions,
-		WithdrawTrieRoot: trace03.WithdrawTrieRoot,
-	}
-	batchData2 = types.NewBatchData(&types.BlockBatch{
-		Index:     batchData1.Batch.BatchIndex,
-		Hash:      batchData1.Hash().Hex(),
-		StateRoot: batchData1.Batch.NewStateRoot.String(),
-	}, []*types.WrappedBlock{wrappedBlock2}, nil)
-
-}
-
-func TestMain(m *testing.M) {
-	base = docker.NewDockerApp()
-
-	// Load config.
-	var err error
-	cfg, err = config.NewConfig("../config.json")
-	if err != nil {
-		panic(err)
-	}
-	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
-	cfg.DBConfig = base.DBConfig
-
-	m.Run()
-
-	base.Free()
-}

bridge/l2/watcher_api.go

@@ -1,5 +0,0 @@
-package l2
-
-// WatcherAPI watcher api service
-type WatcherAPI interface {
-}

bridge/l2/watcher_test.go

@@ -1,218 +0,0 @@
-package l2
-
-import (
-	"context"
-	"crypto/ecdsa"
-	"math/big"
-	"strconv"
-	"testing"
-	"time"
-
-	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
-	"github.com/scroll-tech/go-ethereum/common"
-	geth_types "github.com/scroll-tech/go-ethereum/core/types"
-	"github.com/scroll-tech/go-ethereum/ethclient"
-	"github.com/scroll-tech/go-ethereum/rpc"
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/common/types"
-
-	"scroll-tech/bridge/mock_bridge"
-	"scroll-tech/bridge/sender"
-
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-)
-
-func TestCreateNewWatcherAndStop(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
-	// Create db handler and reset db.
-	l2db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(l2db.GetDB().DB))
-	defer l2db.Close()
-
-	l2cfg := cfg.L2Config
-	rc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, l2db)
-	rc.Start()
-	defer rc.Stop()
-
-	l1cfg := cfg.L1Config
-	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKeys)
-	assert.NoError(t, err)
-
-	// Create several transactions and commit to block
-	numTransactions := 3
-	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	for i := 0; i < numTransactions; i++ {
-		_, err = newSender.SendTransaction(strconv.Itoa(1000+i), &toAddress, big.NewInt(1000000000), nil, 0)
-		assert.NoError(t, err)
-		<-newSender.ConfirmChan()
-	}
-
-	blockNum, err := l2Cli.BlockNumber(context.Background())
-	assert.NoError(t, err)
-	assert.GreaterOrEqual(t, blockNum, uint64(numTransactions))
-}
-
-func TestMonitorBridgeContract(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	l2cfg := cfg.L2Config
-	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
-	wc.Start()
-	defer wc.Stop()
-
-	previousHeight, err := l2Cli.BlockNumber(context.Background())
-	assert.NoError(t, err)
-
-	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
-
-	// deploy mock bridge
-	_, tx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
-	assert.NoError(t, err)
-	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
-	assert.NoError(t, err)
-
-	rc := prepareWatcherClient(l2Cli, db, address)
-	rc.Start()
-	defer rc.Stop()
-
-	// Call mock_bridge instance sendMessage to trigger emit events
-	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	message := []byte("testbridgecontract")
-	fee := big.NewInt(0)
-	gasLimit := big.NewInt(1)
-
-	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-	assert.NoError(t, err)
-	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// extra block mined
-	toAddress = common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	message = []byte("testbridgecontract")
-	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-	assert.NoError(t, err)
-	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// wait for dealing time
-	<-time.After(6 * time.Second)
-
-	var latestHeight uint64
-	latestHeight, err = l2Cli.BlockNumber(context.Background())
-	assert.NoError(t, err)
-	t.Log("Latest height is", latestHeight)
-
-	// check if we successfully stored events
-	height, err := db.GetLayer2LatestWatchedHeight()
-	assert.NoError(t, err)
-	t.Log("Height in DB is", height)
-	assert.Greater(t, height, int64(previousHeight))
-	msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
-	assert.NoError(t, err)
-	assert.Equal(t, 2, len(msgs))
-}
-
-func TestFetchMultipleSentMessageInOneBlock(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	previousHeight, err := l2Cli.BlockNumber(context.Background()) // shallow the global previousHeight
-	assert.NoError(t, err)
-
-	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
-
-	_, trx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
-	assert.NoError(t, err)
-	address, err := bind.WaitDeployed(context.Background(), l2Cli, trx)
-	assert.NoError(t, err)
-
-	rc := prepareWatcherClient(l2Cli, db, address)
-	rc.Start()
-	defer rc.Stop()
-
-	// Call mock_bridge instance sendMessage to trigger emit events multiple times
-	numTransactions := 4
-	var tx *geth_types.Transaction
-
-	for i := 0; i < numTransactions; i++ {
-		toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-		message := []byte("testbridgecontract")
-		fee := big.NewInt(0)
-		gasLimit := big.NewInt(1)
-		tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-		assert.NoError(t, err)
-	}
-
-	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// extra block mined
-	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	message := []byte("testbridgecontract")
-	fee := big.NewInt(0)
-	gasLimit := big.NewInt(1)
-	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-	assert.NoError(t, err)
-	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// wait for dealing time
-	<-time.After(6 * time.Second)
-
-	// check if we successfully stored events
-	height, err := db.GetLayer2LatestWatchedHeight()
-	assert.NoError(t, err)
-	t.Log("LatestHeight is", height)
-	assert.Greater(t, height, int64(previousHeight)) // height must be greater than previousHeight because confirmations is 0
-	msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
-	assert.NoError(t, err)
-	assert.Equal(t, 5, len(msgs))
-}
-
-func prepareWatcherClient(l2Cli *ethclient.Client, db database.OrmFactory, contractAddr common.Address) *WatcherClient {
-	confirmations := rpc.LatestBlockNumber
-	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db)
-}
-
-func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
-	auth, err := bind.NewKeyedTransactorWithChainID(privateKey, big.NewInt(53077))
-	assert.NoError(t, err)
-	auth.Value = big.NewInt(0) // in wei
-	assert.NoError(t, err)
-	auth.GasPrice, err = l2Cli.SuggestGasPrice(context.Background())
-	assert.NoError(t, err)
-	return auth
-}

bridge/relayer/l1_relayer.go

@@ -1,10 +1,9 @@
-package l1
+package relayer
 
 import (
 	"context"
 	"errors"
 	"math/big"
-	"time"
 
 	// not sure if this will make problems when relay with l1geth
 
@@ -15,7 +14,6 @@ import (
 	geth_metrics "github.com/scroll-tech/go-ethereum/metrics"
 
 	"scroll-tech/common/types"
-	"scroll-tech/common/utils"
 
 	"scroll-tech/database"
 
@@ -31,14 +29,6 @@ var (
 	bridgeL1MsgsRelayedConfirmedTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l1/msgs/relayed/confirmed/total", metrics.ScrollRegistry)
 )
 
-const (
-	gasPriceDiffPrecision = 1000000
-
-	defaultGasPriceDiff = 50000 // 5%
-
-	defaultMessageRelayMinGasLimit = 130000 // should be enough for both ERC20 and ETH relay
-)
-
 // Layer1Relayer is responsible for
 //  1. fetch pending L1Message from db
 //  2. relay pending message to layer 2 node
@@ -53,11 +43,9 @@ type Layer1Relayer struct {
 
 	// channel used to communicate with transaction sender
 	messageSender  *sender.Sender
-	messageCh      <-chan *sender.Confirmation
 	l2MessengerABI *abi.ABI
 
 	gasOracleSender *sender.Sender
-	gasOracleCh     <-chan *sender.Confirmation
 	l1GasOracleABI  *abi.ABI
 
 	minGasLimitForMessageRelay uint64
@@ -65,8 +53,6 @@ type Layer1Relayer struct {
 	lastGasPrice uint64
 	minGasPrice  uint64
 	gasPriceDiff uint64
-
-	stopCh chan struct{}
 }
 
 // NewLayer1Relayer will return a new instance of Layer1RelayerClient
@@ -96,21 +82,19 @@ func NewLayer1Relayer(ctx context.Context, db database.OrmFactory, cfg *config.R
 		gasPriceDiff = defaultGasPriceDiff
 	}
 
-	minGasLimitForMessageRelay := uint64(defaultMessageRelayMinGasLimit)
+	minGasLimitForMessageRelay := uint64(defaultL1MessageRelayMinGasLimit)
 	if cfg.MessageRelayMinGasLimit != 0 {
 		minGasLimitForMessageRelay = cfg.MessageRelayMinGasLimit
 	}
 
-	return &Layer1Relayer{
+	l1Relayer := &Layer1Relayer{
 		ctx: ctx,
 		db:  db,
 
 		messageSender:  messageSender,
-		messageCh:      messageSender.ConfirmChan(),
 		l2MessengerABI: bridge_abi.L2ScrollMessengerABI,
 
 		gasOracleSender: gasOracleSender,
-		gasOracleCh:     gasOracleSender.ConfirmChan(),
 		l1GasOracleABI:  bridge_abi.L1GasPriceOracleABI,
 
 		minGasLimitForMessageRelay: minGasLimitForMessageRelay,
@@ -118,9 +102,11 @@ func NewLayer1Relayer(ctx context.Context, db database.OrmFactory, cfg *config.R
 		minGasPrice:  minGasPrice,
 		gasPriceDiff: gasPriceDiff,
 
-		cfg:    cfg,
-		stopCh: make(chan struct{}),
-	}, nil
+		cfg: cfg,
+	}
+
+	go l1Relayer.handleConfirmLoop(ctx)
+	return l1Relayer, nil
 }
 
 // ProcessSavedEvents relays saved un-processed cross-domain transactions to desired blockchain
@@ -138,7 +124,7 @@ func (r *Layer1Relayer) ProcessSavedEvents() {
 
 	for _, msg := range msgs {
 		if err = r.processSavedEvent(msg); err != nil {
-			if !errors.Is(err, sender.ErrNoAvailableAccount) {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("failed to process event", "msg.msgHash", msg.MsgHash, "err", err)
 			}
 			return
@@ -153,7 +139,7 @@ func (r *Layer1Relayer) processSavedEvent(msg *types.L1Message) error {
 	if err != nil && err.Error() == "execution reverted: Message expired" {
 		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgExpired)
 	}
-	if err != nil && err.Error() == "execution reverted: Message successfully executed" {
+	if err != nil && err.Error() == "execution reverted: Message was already successfully executed" {
 		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
 	}
 	if err != nil {
@@ -203,7 +189,7 @@ func (r *Layer1Relayer) ProcessGasPriceOracle() {
 
 			hash, err := r.gasOracleSender.SendTransaction(block.Hash, &r.cfg.GasPriceOracleContractAddress, big.NewInt(0), data, 0)
 			if err != nil {
-				if !errors.Is(err, sender.ErrNoAvailableAccount) {
+				if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 					log.Error("Failed to send setL1BaseFee tx to layer2 ", "block.Hash", block.Hash, "block.Height", block.Number, "err", err)
 				}
 				return
@@ -220,61 +206,43 @@ func (r *Layer1Relayer) ProcessGasPriceOracle() {
 	}
 }
 
-// Start the relayer process
-func (r *Layer1Relayer) Start() {
-	go func() {
-		ctx, cancel := context.WithCancel(r.ctx)
-
-		go utils.Loop(ctx, 2*time.Second, r.ProcessSavedEvents)
-		go utils.Loop(ctx, 2*time.Second, r.ProcessGasPriceOracle)
-
-		go func(ctx context.Context) {
-			for {
-				select {
-				case <-ctx.Done():
-					return
-				case cfm := <-r.messageCh:
-					bridgeL1MsgsRelayedConfirmedTotalCounter.Inc(1)
-					if !cfm.IsSuccessful {
-						err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgRelayFailed, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
-						}
-						log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
-					} else {
-						// @todo handle db error
-						err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgConfirmed, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
-						}
-						log.Info("transaction confirmed in layer2", "confirmation", cfm)
-					}
-				case cfm := <-r.gasOracleCh:
-					if !cfm.IsSuccessful {
-						// @discuss: maybe make it pending again?
-						err := r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateL1GasOracleStatusAndOracleTxHash failed", "err", err)
-						}
-						log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
-					} else {
-						// @todo handle db error
-						err := r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleImported, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateGasOracleStatusAndOracleTxHash failed", "err", err)
-						}
-						log.Info("transaction confirmed in layer2", "confirmation", cfm)
-					}
+func (r *Layer1Relayer) handleConfirmLoop(ctx context.Context) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case cfm := <-r.messageSender.ConfirmChan():
+			bridgeL1MsgsRelayedConfirmedTotalCounter.Inc(1)
+			if !cfm.IsSuccessful {
+				err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgRelayFailed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
 				}
+				log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
+			} else {
+				// @todo handle db error
+				err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgConfirmed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
+				}
+				log.Info("transaction confirmed in layer2", "confirmation", cfm)
 			}
-		}(ctx)
-
-		<-r.stopCh
-		cancel()
-	}()
-}
-
-// Stop the relayer module, for a graceful shutdown.
-func (r *Layer1Relayer) Stop() {
-	close(r.stopCh)
+		case cfm := <-r.gasOracleSender.ConfirmChan():
+			if !cfm.IsSuccessful {
+				// @discuss: maybe make it pending again?
+				err := r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateL1GasOracleStatusAndOracleTxHash failed", "err", err)
+				}
+				log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
+			} else {
+				// @todo handle db error
+				err := r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleImported, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateGasOracleStatusAndOracleTxHash failed", "err", err)
+				}
+				log.Info("transaction confirmed in layer2", "confirmation", cfm)
+			}
+		}
+	}
 }

bridge/relayer/l1_relayer_test.go

@@ -0,0 +1,155 @@
+package relayer
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+	"scroll-tech/common/utils"
+	"scroll-tech/database/migrate"
+
+	"scroll-tech/bridge/sender"
+
+	"scroll-tech/database"
+)
+
+var (
+	templateL1Message = []*types.L1Message{
+		{
+			QueueIndex: 1,
+			MsgHash:    "msg_hash1",
+			Height:     1,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "0x19ece",
+			GasLimit:   11529940,
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer1Hash: "hash0",
+		},
+		{
+			QueueIndex: 2,
+			MsgHash:    "msg_hash2",
+			Height:     2,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "0x19ece",
+			GasLimit:   11529940,
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer1Hash: "hash1",
+		},
+	}
+)
+
+// testCreateNewRelayer test create new relayer instance and stop
+func testCreateNewL1Relayer(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NotNil(t, relayer)
+}
+
+func testL1RelayerProcessSaveEvents(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+	l1Cfg := cfg.L1Config
+	relayer, err := NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, db.SaveL1Messages(context.Background(), templateL1Message))
+	relayer.ProcessSavedEvents()
+	msg1, err := db.GetL1MessageByQueueIndex(1)
+	assert.NoError(t, err)
+	assert.Equal(t, msg1.Status, types.MsgSubmitted)
+	msg2, err := db.GetL1MessageByQueueIndex(2)
+	assert.NoError(t, err)
+	assert.Equal(t, msg2.Status, types.MsgSubmitted)
+}
+
+func testL1RelayerMsgConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	assert.NoError(t, db.SaveL1Messages(context.Background(),
+		[]*types.L1Message{
+			{MsgHash: "msg-1", QueueIndex: 0},
+			{MsgHash: "msg-2", QueueIndex: 1},
+		}))
+
+	// Create and set up the Layer1 Relayer.
+	l1Cfg := cfg.L1Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	l1Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-1",
+		IsSuccessful: true,
+	})
+	l1Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	utils.TryTimes(5, func() bool {
+		msg1, err1 := db.GetL1MessageByMsgHash("msg-1")
+		msg2, err2 := db.GetL1MessageByMsgHash("msg-2")
+		return err1 == nil && msg1.Status == types.MsgConfirmed &&
+			err2 == nil && msg2.Status == types.MsgRelayFailed
+	})
+}
+
+func testL1RelayerGasOracleConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	assert.NoError(t, db.InsertL1Blocks(context.Background(),
+		[]*types.L1BlockInfo{
+			{Hash: "gas-oracle-1", Number: 0},
+			{Hash: "gas-oracle-2", Number: 1},
+		}))
+
+	// Create and set up the Layer2 Relayer.
+	l1Cfg := cfg.L1Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	l1Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
+		ID:           "gas-oracle-1",
+		IsSuccessful: true,
+	})
+	l1Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
+		ID:           "gas-oracle-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	utils.TryTimes(5, func() bool {
+		msg1, err1 := db.GetL1BlockInfos(map[string]interface{}{"hash": "gas-oracle-1"})
+		msg2, err2 := db.GetL1BlockInfos(map[string]interface{}{"hash": "gas-oracle-2"})
+		return err1 == nil && len(msg1) == 1 && msg1[0].GasOracleStatus == types.GasOracleImported &&
+			err2 == nil && len(msg2) == 1 && msg2[0].GasOracleStatus == types.GasOracleFailed
+	})
+}

bridge/relayer/l2_relayer.go

@@ -1,4 +1,4 @@
-package l2
+package relayer
 
 import (
 	"context"
@@ -7,7 +7,6 @@ import (
 	"math/big"
 	"runtime"
 	"sync"
-	"time"
 
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -18,12 +17,10 @@ import (
 	"golang.org/x/sync/errgroup"
 	"modernc.org/mathutil"
 
-	"scroll-tech/database"
-
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
-	cutil "scroll-tech/common/utils"
+	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
@@ -41,14 +38,6 @@ var (
 	bridgeL2BatchesSkippedTotalCounter            = geth_metrics.NewRegisteredCounter("bridge/l2/batches/skipped/total", metrics.ScrollRegistry)
 )
 
-const (
-	gasPriceDiffPrecision = 1000000
-
-	defaultGasPriceDiff = 50000 // 5%
-
-	defaultMessageRelayMinGasLimit = 200000 // should be enough for both ERC20 and ETH relay
-)
-
 // Layer2Relayer is responsible for
 //  1. Committing and finalizing L2 blocks on L1
 //  2. Relaying messages from L2 to L1
@@ -64,15 +53,12 @@ type Layer2Relayer struct {
 	cfg *config.RelayerConfig
 
 	messageSender  *sender.Sender
-	messageCh      <-chan *sender.Confirmation
 	l1MessengerABI *abi.ABI
 
 	rollupSender *sender.Sender
-	rollupCh     <-chan *sender.Confirmation
 	l1RollupABI  *abi.ABI
 
 	gasOracleSender *sender.Sender
-	gasOracleCh     <-chan *sender.Confirmation
 	l2GasOracleABI  *abi.ABI
 
 	minGasLimitForMessageRelay uint64
@@ -92,8 +78,6 @@ type Layer2Relayer struct {
 	// A list of processing batch finalization.
 	// key(string): confirmation ID, value(string): batch hash.
 	processingFinalization sync.Map
-
-	stopCh chan struct{}
 }
 
 // NewLayer2Relayer will return a new instance of Layer2RelayerClient
@@ -127,27 +111,24 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db databa
 		gasPriceDiff = defaultGasPriceDiff
 	}
 
-	minGasLimitForMessageRelay := uint64(defaultMessageRelayMinGasLimit)
+	minGasLimitForMessageRelay := uint64(defaultL2MessageRelayMinGasLimit)
 	if cfg.MessageRelayMinGasLimit != 0 {
 		minGasLimitForMessageRelay = cfg.MessageRelayMinGasLimit
 	}
 
-	return &Layer2Relayer{
+	layer2Relayer := &Layer2Relayer{
 		ctx: ctx,
 		db:  db,
 
 		l2Client: l2Client,
 
 		messageSender:  messageSender,
-		messageCh:      messageSender.ConfirmChan(),
 		l1MessengerABI: bridge_abi.L1ScrollMessengerABI,
 
 		rollupSender: rollupSender,
-		rollupCh:     rollupSender.ConfirmChan(),
 		l1RollupABI:  bridge_abi.ScrollChainABI,
 
 		gasOracleSender: gasOracleSender,
-		gasOracleCh:     gasOracleSender.ConfirmChan(),
 		l2GasOracleABI:  bridge_abi.L2GasPriceOracleABI,
 
 		minGasLimitForMessageRelay: minGasLimitForMessageRelay,
@@ -159,8 +140,9 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db databa
 		processingMessage:           sync.Map{},
 		processingBatchesCommitment: sync.Map{},
 		processingFinalization:      sync.Map{},
-		stopCh:                      make(chan struct{}),
-	}, nil
+	}
+	go layer2Relayer.handleConfirmLoop(ctx)
+	return layer2Relayer, nil
 }
 
 const processMsgLimit = 100
@@ -199,7 +181,7 @@ func (r *Layer2Relayer) ProcessSavedEvents() {
 			})
 		}
 		if err := g.Wait(); err != nil {
-			if !errors.Is(err, sender.ErrNoAvailableAccount) {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("failed to process l2 saved event", "err", err)
 			}
 			return
@@ -248,11 +230,11 @@ func (r *Layer2Relayer) processSavedEvent(msg *types.L2Message) error {
 	if err != nil && err.Error() == "execution reverted: Message expired" {
 		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, types.MsgExpired)
 	}
-	if err != nil && err.Error() == "execution reverted: Message successfully executed" {
+	if err != nil && err.Error() == "execution reverted: Message was already successfully executed" {
 		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
 	}
 	if err != nil {
-		if !errors.Is(err, sender.ErrNoAvailableAccount) {
+		if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 			log.Error("Failed to send relayMessageWithProof tx to layer1 ", "msg.height", msg.Height, "msg.MsgHash", msg.MsgHash, "err", err)
 		}
 		return err
@@ -298,7 +280,7 @@ func (r *Layer2Relayer) ProcessGasPriceOracle() {
 
 			hash, err := r.gasOracleSender.SendTransaction(batch.Hash, &r.cfg.GasPriceOracleContractAddress, big.NewInt(0), data, 0)
 			if err != nil {
-				if !errors.Is(err, sender.ErrNoAvailableAccount) {
+				if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 					log.Error("Failed to send setL2BaseFee tx to layer2 ", "batch.Hash", batch.Hash, "err", err)
 				}
 				return
@@ -344,7 +326,7 @@ func (r *Layer2Relayer) SendCommitTx(batchData []*types.BatchData) error {
 	txID := crypto.Keccak256Hash(bytes).String()
 	txHash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), calldata, 0)
 	if err != nil {
-		if !errors.Is(err, sender.ErrNoAvailableAccount) {
+		if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 			log.Error("Failed to send commitBatches tx to layer1 ", "err", err)
 		}
 		return err
@@ -463,12 +445,12 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 			}
 		}()
 
-		proofBuffer, instanceBuffer, err := r.db.GetVerifiedProofAndInstanceByHash(hash)
+		proofBuffer, icBuffer, err := r.db.GetVerifiedProofAndInstanceCommitmentsByHash(hash)
 		if err != nil {
 			log.Warn("fetch get proof by hash failed", "hash", hash, "err", err)
 			return
 		}
-		if proofBuffer == nil || instanceBuffer == nil {
+		if proofBuffer == nil || icBuffer == nil {
 			log.Warn("proof or instance not ready", "hash", hash)
 			return
 		}
@@ -476,13 +458,13 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 			log.Error("proof buffer has wrong length", "hash", hash, "length", len(proofBuffer))
 			return
 		}
-		if len(instanceBuffer)%32 != 0 {
-			log.Warn("instance buffer has wrong length", "hash", hash, "length", len(instanceBuffer))
+		if len(icBuffer)%32 != 0 {
+			log.Warn("instance buffer has wrong length", "hash", hash, "length", len(icBuffer))
 			return
 		}
 
 		proof := utils.BufferToUint256Le(proofBuffer)
-		instance := utils.BufferToUint256Le(instanceBuffer)
+		instance := utils.BufferToUint256Le(icBuffer)
 		data, err := r.l1RollupABI.Pack("finalizeBatchWithProof", common.HexToHash(hash), proof, instance)
 		if err != nil {
 			log.Error("Pack finalizeBatchWithProof failed", "err", err)
@@ -494,7 +476,7 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 		txHash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), data, 0)
 		finalizeTxHash := &txHash
 		if err != nil {
-			if !errors.Is(err, sender.ErrNoAvailableAccount) {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("finalizeBatchWithProof in layer1 failed", "hash", hash, "err", err)
 			}
 			return
@@ -517,53 +499,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 	}
 }
 
-// Start the relayer process
-func (r *Layer2Relayer) Start() {
-	go func() {
-		ctx, cancel := context.WithCancel(r.ctx)
-		go cutil.Loop(ctx, time.Second, r.ProcessSavedEvents)
-		go cutil.Loop(ctx, time.Second, r.ProcessCommittedBatches)
-		go cutil.Loop(ctx, time.Second, r.ProcessGasPriceOracle)
-
-		go func(ctx context.Context) {
-			for {
-				select {
-				case <-ctx.Done():
-					return
-				case confirmation := <-r.messageCh:
-					r.handleConfirmation(confirmation)
-				case confirmation := <-r.rollupCh:
-					r.handleConfirmation(confirmation)
-				case cfm := <-r.gasOracleCh:
-					if !cfm.IsSuccessful {
-						// @discuss: maybe make it pending again?
-						err := r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateL2GasOracleStatusAndOracleTxHash failed", "err", err)
-						}
-						log.Warn("transaction confirmed but failed in layer1", "confirmation", cfm)
-					} else {
-						// @todo handle db error
-						err := r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleImported, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateL2GasOracleStatusAndOracleTxHash failed", "err", err)
-						}
-						log.Info("transaction confirmed in layer1", "confirmation", cfm)
-					}
-				}
-			}
-		}(ctx)
-
-		<-r.stopCh
-		cancel()
-	}()
-}
-
-// Stop the relayer module, for a graceful shutdown.
-func (r *Layer2Relayer) Stop() {
-	close(r.stopCh)
-}
-
 func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 	transactionType := "Unknown"
 	// check whether it is message relay transaction
@@ -627,3 +562,32 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 	}
 	log.Info("transaction confirmed in layer1", "type", transactionType, "confirmation", confirmation)
 }
+
+func (r *Layer2Relayer) handleConfirmLoop(ctx context.Context) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case confirmation := <-r.messageSender.ConfirmChan():
+			r.handleConfirmation(confirmation)
+		case confirmation := <-r.rollupSender.ConfirmChan():
+			r.handleConfirmation(confirmation)
+		case cfm := <-r.gasOracleSender.ConfirmChan():
+			if !cfm.IsSuccessful {
+				// @discuss: maybe make it pending again?
+				err := r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateL2GasOracleStatusAndOracleTxHash failed", "err", err)
+				}
+				log.Warn("transaction confirmed but failed in layer1", "confirmation", cfm)
+			} else {
+				// @todo handle db error
+				err := r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleImported, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateL2GasOracleStatusAndOracleTxHash failed", "err", err)
+				}
+				log.Info("transaction confirmed in layer1", "confirmation", cfm)
+			}
+		}
+	}
+}

bridge/relayer/l2_relayer_test.go

@@ -1,4 +1,4 @@
-package l2
+package relayer
 
 import (
 	"context"
@@ -13,6 +13,9 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"scroll-tech/common/types"
+	"scroll-tech/common/utils"
+
+	"scroll-tech/bridge/sender"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -32,12 +35,7 @@ var (
 	}
 )
 
-func TestCreateNewRelayer(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
+func testCreateNewRelayer(t *testing.T) {
 	// Create db handler and reset db.
 	db, err := database.NewOrmFactory(cfg.DBConfig)
 	assert.NoError(t, err)
@@ -46,17 +44,10 @@ func TestCreateNewRelayer(t *testing.T) {
 
 	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
 	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	relayer.Start()
+	assert.NotNil(t, relayer)
 }
 
-func TestL2RelayerProcessSaveEvents(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
+func testL2RelayerProcessSaveEvents(t *testing.T) {
 	// Create db handler and reset db.
 	db, err := database.NewOrmFactory(cfg.DBConfig)
 	assert.NoError(t, err)
@@ -66,7 +57,6 @@ func TestL2RelayerProcessSaveEvents(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer relayer.Stop()
 
 	err = db.SaveL2Messages(context.Background(), templateL2Message)
 	assert.NoError(t, err)
@@ -89,6 +79,12 @@ func TestL2RelayerProcessSaveEvents(t *testing.T) {
 	}
 	assert.NoError(t, db.InsertWrappedBlocks(traces))
 
+	parentBatch1 := &types.BlockBatch{
+		Index:     0,
+		Hash:      common.Hash{}.Hex(),
+		StateRoot: common.Hash{}.Hex(),
+	}
+	batchData1 := types.NewBatchData(parentBatch1, []*types.WrappedBlock{wrappedBlock1}, nil)
 	dbTx, err := db.Beginx()
 	assert.NoError(t, err)
 	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
@@ -106,12 +102,7 @@ func TestL2RelayerProcessSaveEvents(t *testing.T) {
 	assert.Equal(t, types.MsgSubmitted, msg.Status)
 }
 
-func TestL2RelayerProcessCommittedBatches(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
+func testL2RelayerProcessCommittedBatches(t *testing.T) {
 	// Create db handler and reset db.
 	db, err := database.NewOrmFactory(cfg.DBConfig)
 	assert.NoError(t, err)
@@ -121,8 +112,13 @@ func TestL2RelayerProcessCommittedBatches(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer relayer.Stop()
 
+	parentBatch1 := &types.BlockBatch{
+		Index:     0,
+		Hash:      common.Hash{}.Hex(),
+		StateRoot: common.Hash{}.Hex(),
+	}
+	batchData1 := types.NewBatchData(parentBatch1, []*types.WrappedBlock{wrappedBlock1}, nil)
 	dbTx, err := db.Beginx()
 	assert.NoError(t, err)
 	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
@@ -147,12 +143,7 @@ func TestL2RelayerProcessCommittedBatches(t *testing.T) {
 	assert.Equal(t, types.RollupFinalizing, status)
 }
 
-func TestL2RelayerSkipBatches(t *testing.T) {
-	// Start docker containers.
-	base.RunImages(t)
-	l2Cli, err := base.L2Client()
-	assert.NoError(t, err)
-
+func testL2RelayerSkipBatches(t *testing.T) {
 	// Create db handler and reset db.
 	db, err := database.NewOrmFactory(cfg.DBConfig)
 	assert.NoError(t, err)
@@ -162,7 +153,6 @@ func TestL2RelayerSkipBatches(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer relayer.Stop()
 
 	createBatch := func(rollupStatus types.RollupStatus, provingStatus types.ProvingStatus, index uint64) string {
 		dbTx, err := db.Beginx()
@@ -218,6 +208,166 @@ func TestL2RelayerSkipBatches(t *testing.T) {
 	}
 }
 
+func testL2RelayerMsgConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	assert.NoError(t, db.SaveL2Messages(context.Background(), []*types.L2Message{
+		{MsgHash: "msg-1", Nonce: 0}, {MsgHash: "msg-2", Nonce: 1},
+	}))
+
+	// Create and set up the Layer2 Relayer.
+	l2Cfg := cfg.L2Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	l2Relayer.processingMessage.Store("msg-1", "msg-1")
+	l2Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-1",
+		IsSuccessful: true,
+	})
+	l2Relayer.processingMessage.Store("msg-2", "msg-2")
+	l2Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	utils.TryTimes(5, func() bool {
+		msg1, err1 := db.GetL2MessageByMsgHash("msg-1")
+		msg2, err2 := db.GetL2MessageByMsgHash("msg-2")
+		return err1 == nil && msg1.Status == types.MsgConfirmed &&
+			err2 == nil && msg2.Status == types.MsgRelayFailed
+	})
+}
+
+func testL2RelayerRollupConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	batches := make([]*types.BatchData, 6)
+	for i := 0; i < 6; i++ {
+		batches[i] = genBatchData(t, uint64(i))
+	}
+
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	for _, batch := range batches {
+		assert.NoError(t, db.NewBatchInDBTx(dbTx, batch))
+	}
+	assert.NoError(t, dbTx.Commit())
+
+	// Create and set up the Layer2 Relayer.
+	l2Cfg := cfg.L2Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	processingKeys := []string{"committed-1", "committed-2", "finalized-1", "finalized-2"}
+	isSuccessful := []bool{true, false, true, false}
+
+	for i, key := range processingKeys[:2] {
+		batchHashes := []string{batches[i*2].Hash().Hex(), batches[i*2+1].Hash().Hex()}
+		l2Relayer.processingBatchesCommitment.Store(key, batchHashes)
+		l2Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+			ID:           key,
+			IsSuccessful: isSuccessful[i],
+		})
+	}
+
+	for i, key := range processingKeys[2:] {
+		batchHash := batches[i+4].Hash().Hex()
+		l2Relayer.processingFinalization.Store(key, batchHash)
+		l2Relayer.rollupSender.SendConfirmation(&sender.Confirmation{
+			ID:           key,
+			IsSuccessful: isSuccessful[i+2],
+			TxHash:       common.HexToHash("0x56789abcdef1234"),
+		})
+	}
+
+	// Check the database for the updated status using TryTimes.
+	utils.TryTimes(5, func() bool {
+		expectedStatuses := []types.RollupStatus{
+			types.RollupCommitted,
+			types.RollupCommitted,
+			types.RollupCommitFailed,
+			types.RollupCommitFailed,
+			types.RollupFinalized,
+			types.RollupFinalizeFailed,
+		}
+
+		for i, batch := range batches[:6] {
+			batchInDB, err := db.GetBlockBatches(map[string]interface{}{"hash": batch.Hash().Hex()})
+			if err != nil || len(batchInDB) != 1 || batchInDB[0].RollupStatus != expectedStatuses[i] {
+				return false
+			}
+		}
+		return true
+	})
+}
+
+func testL2RelayerGasOracleConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	batches := make([]*types.BatchData, 2)
+	for i := 0; i < 2; i++ {
+		batches[i] = genBatchData(t, uint64(i))
+	}
+
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	for _, batch := range batches {
+		assert.NoError(t, db.NewBatchInDBTx(dbTx, batch))
+	}
+	assert.NoError(t, dbTx.Commit())
+
+	// Create and set up the Layer2 Relayer.
+	l2Cfg := cfg.L2Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	isSuccessful := []bool{true, false}
+	for i, batch := range batches {
+		l2Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
+			ID:           batch.Hash().Hex(),
+			IsSuccessful: isSuccessful[i],
+		})
+	}
+
+	// Check the database for the updated status using TryTimes.
+	utils.TryTimes(5, func() bool {
+		expectedStatuses := []types.GasOracleStatus{types.GasOracleImported, types.GasOracleFailed}
+		for i, batch := range batches {
+			gasOracle, err := db.GetBlockBatches(map[string]interface{}{"hash": batch.Hash().Hex()})
+			if err != nil || len(gasOracle) != 1 || gasOracle[0].OracleStatus != expectedStatuses[i] {
+				return false
+			}
+		}
+		return true
+	})
+}
+
 func genBatchData(t *testing.T, index uint64) *types.BatchData {
 	templateBlockTrace, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
 	assert.NoError(t, err)

bridge/relayer/params.go

@@ -0,0 +1,11 @@
+package relayer
+
+const (
+	gasPriceDiffPrecision = 1000000
+
+	defaultGasPriceDiff = 50000 // 5%
+
+	defaultL1MessageRelayMinGasLimit = 130000 // should be enough for both ERC20 and ETH relay
+
+	defaultL2MessageRelayMinGasLimit = 200000
+)

bridge/relayer/relayer_test.go

@@ -0,0 +1,113 @@
+package relayer
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/docker"
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/config"
+)
+
+var (
+	// config
+	cfg *config.Config
+
+	base *docker.App
+
+	// l2geth client
+	l2Cli *ethclient.Client
+
+	// block trace
+	wrappedBlock1 *types.WrappedBlock
+	wrappedBlock2 *types.WrappedBlock
+
+	// batch data
+	batchData1 *types.BatchData
+	batchData2 *types.BatchData
+)
+
+func setupEnv(t *testing.T) (err error) {
+	// Load config.
+	cfg, err = config.NewConfig("../config.json")
+	assert.NoError(t, err)
+
+	base.RunImages(t)
+
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.DBConfig = base.DBConfig
+
+	// Create l2geth client.
+	l2Cli, err = base.L2Client()
+	assert.NoError(t, err)
+
+	templateBlockTrace1, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	wrappedBlock1 = &types.WrappedBlock{}
+	if err = json.Unmarshal(templateBlockTrace1, wrappedBlock1); err != nil {
+		return err
+	}
+	parentBatch1 := &types.BlockBatch{
+		Index:     0,
+		Hash:      "0x0cc6b102c2924402c14b2e3a19baccc316252bfdc44d9ec62e942d34e39ec729",
+		StateRoot: "0x2579122e8f9ec1e862e7d415cef2fb495d7698a8e5f0dddc5651ba4236336e7d",
+	}
+	batchData1 = types.NewBatchData(parentBatch1, []*types.WrappedBlock{wrappedBlock1}, nil)
+
+	templateBlockTrace2, err := os.ReadFile("../../common/testdata/blockTrace_03.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	wrappedBlock2 = &types.WrappedBlock{}
+	if err = json.Unmarshal(templateBlockTrace2, wrappedBlock2); err != nil {
+		return err
+	}
+	parentBatch2 := &types.BlockBatch{
+		Index:     batchData1.Batch.BatchIndex,
+		Hash:      batchData1.Hash().Hex(),
+		StateRoot: batchData1.Batch.NewStateRoot.String(),
+	}
+	batchData2 = types.NewBatchData(parentBatch2, []*types.WrappedBlock{wrappedBlock2}, nil)
+
+	log.Info("batchHash", "batchhash1", batchData1.Hash().Hex(), "batchhash2", batchData2.Hash().Hex())
+
+	return err
+}
+
+func TestMain(m *testing.M) {
+	base = docker.NewDockerApp()
+
+	m.Run()
+
+	base.Free()
+}
+
+func TestFunctions(t *testing.T) {
+	if err := setupEnv(t); err != nil {
+		t.Fatal(err)
+	}
+	// Run l1 relayer test cases.
+	t.Run("TestCreateNewL1Relayer", testCreateNewL1Relayer)
+	t.Run("TestL1RelayerProcessSaveEvents", testL1RelayerProcessSaveEvents)
+	t.Run("TestL1RelayerMsgConfirm", testL1RelayerMsgConfirm)
+	t.Run("TestL1RelayerGasOracleConfirm", testL1RelayerGasOracleConfirm)
+	// Run l2 relayer test cases.
+	t.Run("TestCreateNewRelayer", testCreateNewRelayer)
+	t.Run("TestL2RelayerProcessSaveEvents", testL2RelayerProcessSaveEvents)
+	t.Run("TestL2RelayerProcessCommittedBatches", testL2RelayerProcessCommittedBatches)
+	t.Run("TestL2RelayerSkipBatches", testL2RelayerSkipBatches)
+	t.Run("TestL2RelayerMsgConfirm", testL2RelayerMsgConfirm)
+	t.Run("TestL2RelayerRollupConfirm", testL2RelayerRollupConfirm)
+	t.Run("TestL2RelayerGasOracleConfirm", testL2RelayerGasOracleConfirm)
+}

bridge/sender/account_pool.go

@@ -23,10 +23,6 @@ type accountPool struct {
 
 // newAccounts creates an accountPool instance.
 func newAccountPool(ctx context.Context, minBalance *big.Int, client *ethclient.Client, privs []*ecdsa.PrivateKey) (*accountPool, error) {
-	if minBalance == nil {
-		minBalance = big.NewInt(0)
-		minBalance.SetString("100000000000000000000", 10)
-	}
 	accs := &accountPool{
 		client:     client,
 		minBalance: minBalance,

bridge/sender/sender.go

@@ -6,21 +6,19 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
-	"reflect"
 	"strings"
-	"sync"
 	"sync/atomic"
 	"time"
 
+	cmapV2 "github.com/orcaman/concurrent-map/v2"
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 
-	"scroll-tech/bridge/utils"
-
 	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/utils"
 )
 
 const (
@@ -37,6 +35,12 @@ const (
 var (
 	// ErrNoAvailableAccount indicates no available account error in the account pool.
 	ErrNoAvailableAccount = errors.New("sender has no available account to send transaction")
+	// ErrFullPending sender's pending pool is full.
+	ErrFullPending = errors.New("sender's pending pool is full")
+)
+
+var (
+	defaultPendingLimit = 10
 )
 
 // Confirmation struct used to indicate transaction confirmation details
@@ -74,9 +78,9 @@ type Sender struct {
 	// account fields.
 	auths *accountPool
 
-	blockNumber   uint64   // Current block number on chain.
-	baseFeePerGas uint64   // Current base fee per gas on chain
-	pendingTxs    sync.Map // Mapping from nonce to pending transaction
+	blockNumber   uint64                                            // Current block number on chain.
+	baseFeePerGas uint64                                            // Current base fee per gas on chain
+	pendingTxs    cmapV2.ConcurrentMap[string, *PendingTransaction] // Mapping from nonce to pending transaction
 	confirmCh     chan *Confirmation
 
 	stopCh chan struct{}
@@ -116,6 +120,11 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 		}
 	}
 
+	// initialize pending limit with a default value
+	if config.PendingLimit == 0 {
+		config.PendingLimit = defaultPendingLimit
+	}
+
 	sender := &Sender{
 		ctx:           ctx,
 		config:        config,
@@ -125,7 +134,7 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 		confirmCh:     make(chan *Confirmation, 128),
 		blockNumber:   header.Number.Uint64(),
 		baseFeePerGas: baseFeePerGas,
-		pendingTxs:    sync.Map{},
+		pendingTxs:    cmapV2.New[*PendingTransaction](),
 		stopCh:        make(chan struct{}),
 	}
 
@@ -134,6 +143,21 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 	return sender, nil
 }
 
+// PendingCount returns the current number of pending txs.
+func (s *Sender) PendingCount() int {
+	return s.pendingTxs.Count()
+}
+
+// PendingLimit returns the maximum number of pending txs the sender can handle.
+func (s *Sender) PendingLimit() int {
+	return s.config.PendingLimit
+}
+
+// IsFull returns true if the sender's pending tx pool is full.
+func (s *Sender) IsFull() bool {
+	return s.pendingTxs.Count() >= s.config.PendingLimit
+}
+
 // Stop stop the sender module.
 func (s *Sender) Stop() {
 	close(s.stopCh)
@@ -145,6 +169,12 @@ func (s *Sender) ConfirmChan() <-chan *Confirmation {
 	return s.confirmCh
 }
 
+// SendConfirmation sends a confirmation to the confirmation channel.
+// Note: This function is only used in tests.
+func (s *Sender) SendConfirmation(cfm *Confirmation) {
+	s.confirmCh <- cfm
+}
+
 // NumberOfAccounts return the count of accounts.
 func (s *Sender) NumberOfAccounts() int {
 	return len(s.auths.accounts)
@@ -159,21 +189,24 @@ func (s *Sender) getFeeData(auth *bind.TransactOpts, target *common.Address, val
 
 // SendTransaction send a signed L2tL1 transaction.
 func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (hash common.Hash, err error) {
+	if s.IsFull() {
+		return common.Hash{}, ErrFullPending
+	}
 	// We occupy the ID, in case some other threads call with the same ID in the same time
-	if _, loaded := s.pendingTxs.LoadOrStore(ID, nil); loaded {
+	if ok := s.pendingTxs.SetIfAbsent(ID, nil); !ok {
 		return common.Hash{}, fmt.Errorf("has the repeat tx ID, ID: %s", ID)
 	}
 	// get
 	auth := s.auths.getAccount()
 	if auth == nil {
-		s.pendingTxs.Delete(ID) // release the ID on failure
+		s.pendingTxs.Remove(ID) // release the ID on failure
 		return common.Hash{}, ErrNoAvailableAccount
 	}
 
 	defer s.auths.releaseAccount(auth)
 	defer func() {
 		if err != nil {
-			s.pendingTxs.Delete(ID) // release the ID on failure
+			s.pendingTxs.Remove(ID) // release the ID on failure
 		}
 	}()
 
@@ -194,7 +227,7 @@ func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.I
 			submitAt: atomic.LoadUint64(&s.blockNumber),
 			feeData:  feeData,
 		}
-		s.pendingTxs.Store(ID, pending)
+		s.pendingTxs.Set(ID, pending)
 		return tx.Hash(), nil
 	}
 
@@ -335,17 +368,17 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 		}
 	}
 
-	s.pendingTxs.Range(func(key, value interface{}) bool {
+	for item := range s.pendingTxs.IterBuffered() {
+		key, pending := item.Key, item.Val
 		// ignore empty id, since we use empty id to occupy pending task
-		if value == nil || reflect.ValueOf(value).IsNil() {
-			return true
+		if pending == nil {
+			continue
 		}
 
-		pending := value.(*PendingTransaction)
 		receipt, err := s.client.TransactionReceipt(s.ctx, pending.tx.Hash())
 		if (err == nil) && (receipt != nil) {
 			if receipt.BlockNumber.Uint64() <= confirmed {
-				s.pendingTxs.Delete(key)
+				s.pendingTxs.Remove(key)
 				// send confirm message
 				s.confirmCh <- &Confirmation{
 					ID:           pending.id,
@@ -376,7 +409,7 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 				// We need to stop the program and manually handle the situation.
 				if strings.Contains(err.Error(), "nonce") {
 					// This key can be deleted
-					s.pendingTxs.Delete(key)
+					s.pendingTxs.Remove(key)
 					// Try get receipt by the latest replaced tx hash
 					receipt, err := s.client.TransactionReceipt(s.ctx, pending.tx.Hash())
 					if (err == nil) && (receipt != nil) {
@@ -398,8 +431,7 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 				pending.submitAt = number
 			}
 		}
-		return true
-	})
+	}
 }
 
 // Loop is the main event loop

bridge/sender/sender_test.go

@@ -1,4 +1,4 @@
-package sender_test
+package sender
 
 import (
 	"context"
@@ -13,6 +13,7 @@ import (
 
 	cmap "github.com/orcaman/concurrent-map"
 	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/rpc"
@@ -21,7 +22,6 @@ import (
 	"scroll-tech/common/docker"
 
 	"scroll-tech/bridge/config"
-	"scroll-tech/bridge/sender"
 )
 
 const TXBatch = 50
@@ -30,6 +30,7 @@ var (
 	privateKeys []*ecdsa.PrivateKey
 	cfg         *config.Config
 	base        *docker.App
+	txTypes     = []string{"LegacyTx", "AccessListTx", "DynamicFeeTx"}
 )
 
 func TestMain(m *testing.M) {
@@ -50,107 +51,166 @@ func setupEnv(t *testing.T) {
 	// Load default private key.
 	privateKeys = []*ecdsa.PrivateKey{priv}
 
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.CheckBalanceTime = 1
 }
 
 func TestSender(t *testing.T) {
 	// Setup
 	setupEnv(t)
 
-	t.Run("test min gas limit", func(t *testing.T) { testMinGasLimit(t) })
+	t.Run("test new sender", testNewSender)
+	t.Run("test pending limit", testPendLimit)
+
+	t.Run("test min gas limit", testMinGasLimit)
+	t.Run("test resubmit transaction", func(t *testing.T) { testResubmitTransaction(t) })
 
 	t.Run("test 1 account sender", func(t *testing.T) { testBatchSender(t, 1) })
 	t.Run("test 3 account sender", func(t *testing.T) { testBatchSender(t, 3) })
 	t.Run("test 8 account sender", func(t *testing.T) { testBatchSender(t, 8) })
 }
 
+func testNewSender(t *testing.T) {
+	for _, txType := range txTypes {
+		// exit by Stop()
+		cfgCopy1 := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy1.TxType = txType
+		newSender1, err := NewSender(context.Background(), &cfgCopy1, privateKeys)
+		assert.NoError(t, err)
+		newSender1.Stop()
+
+		// exit by ctx.Done()
+		cfgCopy2 := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy2.TxType = txType
+		subCtx, cancel := context.WithCancel(context.Background())
+		_, err = NewSender(subCtx, &cfgCopy2, privateKeys)
+		assert.NoError(t, err)
+		cancel()
+	}
+}
+
+func testPendLimit(t *testing.T) {
+	for _, txType := range txTypes {
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.TxType = txType
+		cfgCopy.Confirmations = rpc.LatestBlockNumber
+		cfgCopy.PendingLimit = 2
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
+
+		for i := 0; i < 2*newSender.PendingLimit(); i++ {
+			_, err = newSender.SendTransaction(strconv.Itoa(i), &common.Address{}, big.NewInt(1), nil, 0)
+			assert.True(t, err == nil || (err != nil && err.Error() == "sender's pending pool is full"))
+		}
+		assert.True(t, newSender.PendingCount() <= newSender.PendingLimit())
+		newSender.Stop()
+	}
+}
+
 func testMinGasLimit(t *testing.T) {
-	senderCfg := cfg.L1Config.RelayerConfig.SenderConfig
-	senderCfg.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), senderCfg, privateKeys)
-	assert.NoError(t, err)
-	defer newSender.Stop()
+	for _, txType := range txTypes {
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.TxType = txType
+		cfgCopy.Confirmations = rpc.LatestBlockNumber
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
 
-	client, err := ethclient.Dial(senderCfg.Endpoint)
-	assert.NoError(t, err)
+		client, err := ethclient.Dial(cfgCopy.Endpoint)
+		assert.NoError(t, err)
 
-	// MinGasLimit = 0
-	txHash0, err := newSender.SendTransaction("0", &common.Address{}, big.NewInt(1), nil, 0)
-	assert.NoError(t, err)
-	tx0, _, err := client.TransactionByHash(context.Background(), txHash0)
-	assert.NoError(t, err)
-	assert.Greater(t, tx0.Gas(), uint64(0))
+		// MinGasLimit = 0
+		txHash0, err := newSender.SendTransaction("0", &common.Address{}, big.NewInt(1), nil, 0)
+		assert.NoError(t, err)
+		tx0, _, err := client.TransactionByHash(context.Background(), txHash0)
+		assert.NoError(t, err)
+		assert.Greater(t, tx0.Gas(), uint64(0))
 
-	// MinGasLimit = 100000
-	txHash1, err := newSender.SendTransaction("1", &common.Address{}, big.NewInt(1), nil, 100000)
-	assert.NoError(t, err)
-	tx1, _, err := client.TransactionByHash(context.Background(), txHash1)
-	assert.NoError(t, err)
-	assert.Equal(t, tx1.Gas(), uint64(150000))
+		// MinGasLimit = 100000
+		txHash1, err := newSender.SendTransaction("1", &common.Address{}, big.NewInt(1), nil, 100000)
+		assert.NoError(t, err)
+		tx1, _, err := client.TransactionByHash(context.Background(), txHash1)
+		assert.NoError(t, err)
+		assert.Equal(t, tx1.Gas(), uint64(150000))
+
+		newSender.Stop()
+	}
+}
+
+func testResubmitTransaction(t *testing.T) {
+	for _, txType := range txTypes {
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.TxType = txType
+		s, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
+		auth := s.auths.getAccount()
+		tx := types.NewTransaction(auth.Nonce.Uint64(), common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
+		feeData, err := s.getFeeData(auth, &common.Address{}, big.NewInt(0), nil, 0)
+		assert.NoError(t, err)
+		_, err = s.resubmitTransaction(feeData, auth, tx)
+		assert.NoError(t, err)
+		s.Stop()
+	}
 }
 
 func testBatchSender(t *testing.T, batchSize int) {
-	for len(privateKeys) < batchSize {
-		priv, err := crypto.GenerateKey()
-		if err != nil {
-			t.Fatal(err)
+	for _, txType := range txTypes {
+		for len(privateKeys) < batchSize {
+			priv, err := crypto.GenerateKey()
+			assert.NoError(t, err)
+			privateKeys = append(privateKeys, priv)
 		}
-		privateKeys = append(privateKeys, priv)
-	}
 
-	senderCfg := cfg.L1Config.RelayerConfig.SenderConfig
-	senderCfg.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), senderCfg, privateKeys)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer newSender.Stop()
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.Confirmations = rpc.LatestBlockNumber
+		cfgCopy.PendingLimit = batchSize * TXBatch
+		cfgCopy.TxType = txType
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
 
-	// send transactions
-	var (
-		eg        errgroup.Group
-		idCache   = cmap.New()
-		confirmCh = newSender.ConfirmChan()
-	)
-	for idx := 0; idx < newSender.NumberOfAccounts(); idx++ {
-		index := idx
-		eg.Go(func() error {
-			for i := 0; i < TXBatch; i++ {
-				toAddr := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-				id := strconv.Itoa(i + index*1000)
-				_, err := newSender.SendTransaction(id, &toAddr, big.NewInt(1), nil, 0)
-				if errors.Is(err, sender.ErrNoAvailableAccount) {
-					<-time.After(time.Second)
-					continue
+		// send transactions
+		var (
+			eg        errgroup.Group
+			idCache   = cmap.New()
+			confirmCh = newSender.ConfirmChan()
+		)
+		for idx := 0; idx < newSender.NumberOfAccounts(); idx++ {
+			index := idx
+			eg.Go(func() error {
+				for i := 0; i < TXBatch; i++ {
+					toAddr := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+					id := strconv.Itoa(i + index*1000)
+					_, err := newSender.SendTransaction(id, &toAddr, big.NewInt(1), nil, 0)
+					if errors.Is(err, ErrNoAvailableAccount) || errors.Is(err, ErrFullPending) {
+						<-time.After(time.Second)
+						continue
+					}
+					assert.NoError(t, err)
+					idCache.Set(id, struct{}{})
 				}
-				if err != nil {
-					return err
-				}
-				idCache.Set(id, struct{}{})
-			}
-			return nil
-		})
-	}
-	if err := eg.Wait(); err != nil {
-		t.Error(err)
-	}
-	t.Logf("successful send batch txs, batch size: %d, total count: %d", newSender.NumberOfAccounts(), TXBatch*newSender.NumberOfAccounts())
-
-	// avoid 10 mins cause testcase panic
-	after := time.After(80 * time.Second)
-	for {
-		select {
-		case cmsg := <-confirmCh:
-			assert.Equal(t, true, cmsg.IsSuccessful)
-			_, exist := idCache.Pop(cmsg.ID)
-			assert.Equal(t, true, exist)
-			// Receive all confirmed txs.
-			if idCache.Count() == 0 {
-				return
-			}
-		case <-after:
-			t.Error("newSender test failed because of timeout")
-			return
+				return nil
+			})
 		}
+		assert.NoError(t, eg.Wait())
+		t.Logf("successful send batch txs, batch size: %d, total count: %d", newSender.NumberOfAccounts(), TXBatch*newSender.NumberOfAccounts())
+
+		// avoid 10 mins cause testcase panic
+		after := time.After(80 * time.Second)
+		isDone := false
+		for !isDone {
+			select {
+			case cmsg := <-confirmCh:
+				assert.Equal(t, true, cmsg.IsSuccessful)
+				_, exist := idCache.Pop(cmsg.ID)
+				assert.Equal(t, true, exist)
+				// Receive all confirmed txs.
+				if idCache.Count() == 0 {
+					isDone = true
+				}
+			case <-after:
+				t.Error("newSender test failed because of timeout")
+				isDone = true
+			}
+		}
+		newSender.Stop()
 	}
 }

bridge/tests/bridge_test.go

@@ -11,9 +11,9 @@ import (
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/rpc"
 	"github.com/stretchr/testify/assert"
 
-	"scroll-tech/bridge/cmd/app"
 	"scroll-tech/bridge/config"
 	"scroll-tech/bridge/mock_bridge"
 
@@ -26,9 +26,7 @@ var (
 
 	// private key
 	privateKey *ecdsa.PrivateKey
-
-	bridgeApp *app.BridgeApp
-	base      *docker.App
+	base       *docker.App
 
 	// clients
 	l1Client *ethclient.Client
@@ -53,32 +51,99 @@ var (
 
 func TestMain(m *testing.M) {
 	base = docker.NewDockerApp()
-	bridgeApp = app.NewBridgeApp(base, "../config.json")
-	// Load config.
-	cfg = bridgeApp.Config
 
 	m.Run()
 
-	bridgeApp.Free()
 	base.Free()
 }
 
 func setupEnv(t *testing.T) {
-	// Start l1geth l2geth and postgres docker containers.
-	base.RunImages(t)
-
 	var err error
 	privateKey, err = crypto.ToECDSA(common.FromHex("1212121212121212121212121212121212121212121212121212121212121212"))
 	assert.NoError(t, err)
-	// Create l1geth and l2geth client.
-	l1Client, err = base.L1Client()
+	messagePrivateKey, err := crypto.ToECDSA(common.FromHex("1212121212121212121212121212121212121212121212121212121212121213"))
 	assert.NoError(t, err)
-	l2Client, err = base.L2Client()
+	rollupPrivateKey, err := crypto.ToECDSA(common.FromHex("1212121212121212121212121212121212121212121212121212121212121214"))
+	assert.NoError(t, err)
+	gasOraclePrivateKey, err := crypto.ToECDSA(common.FromHex("1212121212121212121212121212121212121212121212121212121212121215"))
+	assert.NoError(t, err)
+
+	// Load config.
+	cfg, err = config.NewConfig("../config.json")
+	assert.NoError(t, err)
+	cfg.L1Config.Confirmations = rpc.LatestBlockNumber
+	cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys = []*ecdsa.PrivateKey{messagePrivateKey}
+	cfg.L1Config.RelayerConfig.RollupSenderPrivateKeys = []*ecdsa.PrivateKey{rollupPrivateKey}
+	cfg.L1Config.RelayerConfig.GasOracleSenderPrivateKeys = []*ecdsa.PrivateKey{gasOraclePrivateKey}
+	cfg.L2Config.Confirmations = rpc.LatestBlockNumber
+	cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys = []*ecdsa.PrivateKey{messagePrivateKey}
+	cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys = []*ecdsa.PrivateKey{rollupPrivateKey}
+	cfg.L2Config.RelayerConfig.GasOracleSenderPrivateKeys = []*ecdsa.PrivateKey{gasOraclePrivateKey}
+	base.RunImages(t)
+
+	// Create l1geth container.
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.Endpoint = base.L1gethImg.Endpoint()
+
+	// Create l2geth container.
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.L2Config.Endpoint = base.L2gethImg.Endpoint()
+
+	// Create db container.
+	cfg.DBConfig = base.DBConfig
+
+	// Create l1geth and l2geth client.
+	l1Client, err = ethclient.Dial(cfg.L1Config.Endpoint)
+	assert.NoError(t, err)
+	l2Client, err = ethclient.Dial(cfg.L2Config.Endpoint)
 	assert.NoError(t, err)
 
 	// Create l1 and l2 auth
-	l1Auth = prepareAuth(t, base.L1gethImg.ChainID(), privateKey)
-	l2Auth = prepareAuth(t, base.L2gethImg.ChainID(), privateKey)
+	l1Auth = prepareAuth(t, l1Client, privateKey)
+	l2Auth = prepareAuth(t, l2Client, privateKey)
+
+	// send some balance to message and rollup sender
+	transferEther(t, l1Auth, l1Client, messagePrivateKey)
+	transferEther(t, l1Auth, l1Client, rollupPrivateKey)
+	transferEther(t, l1Auth, l1Client, gasOraclePrivateKey)
+	transferEther(t, l2Auth, l2Client, messagePrivateKey)
+	transferEther(t, l2Auth, l2Client, rollupPrivateKey)
+	transferEther(t, l2Auth, l2Client, gasOraclePrivateKey)
+}
+
+func transferEther(t *testing.T, auth *bind.TransactOpts, client *ethclient.Client, privateKey *ecdsa.PrivateKey) {
+	targetAddress := crypto.PubkeyToAddress(privateKey.PublicKey)
+
+	gasPrice, err := client.SuggestGasPrice(context.Background())
+	assert.NoError(t, err)
+	gasPrice.Mul(gasPrice, big.NewInt(2))
+
+	// Get pending nonce
+	nonce, err := client.PendingNonceAt(context.Background(), auth.From)
+	assert.NoError(t, err)
+
+	// 200 ether should be enough
+	value, ok := big.NewInt(0).SetString("0xad78ebc5ac6200000", 0)
+	assert.Equal(t, ok, true)
+
+	tx := types.NewTx(&types.LegacyTx{
+		Nonce:    nonce,
+		To:       &targetAddress,
+		Value:    value,
+		Gas:      500000,
+		GasPrice: gasPrice,
+	})
+	signedTx, err := auth.Signer(auth.From, tx)
+	assert.NoError(t, err)
+
+	err = client.SendTransaction(context.Background(), signedTx)
+	assert.NoError(t, err)
+
+	receipt, err := bind.WaitMined(context.Background(), client, signedTx)
+	assert.NoError(t, err)
+	if receipt.Status != types.ReceiptStatusSuccessful {
+		t.Fatalf("Call failed")
+	}
 }
 
 func prepareContracts(t *testing.T) {
@@ -116,7 +181,9 @@ func prepareContracts(t *testing.T) {
 	cfg.L2Config.RelayerConfig.GasPriceOracleContractAddress = l2MessengerAddress
 }
 
-func prepareAuth(t *testing.T, chainID *big.Int, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
+func prepareAuth(t *testing.T, client *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
+	chainID, err := client.ChainID(context.Background())
+	assert.NoError(t, err)
 	auth, err := bind.NewKeyedTransactorWithChainID(privateKey, chainID)
 	assert.NoError(t, err)
 	auth.Value = big.NewInt(0) // in wei

bridge/tests/gas_oracle_test.go

@@ -11,8 +11,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -30,14 +30,13 @@ func testImportL1GasPrice(t *testing.T) {
 	l1Cfg := cfg.L1Config
 
 	// Create L1Relayer
-	l1Relayer, err := l1.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer l1Relayer.Stop()
 
 	// Create L1Watcher
 	startHeight, err := l1Client.BlockNumber(context.Background())
 	assert.NoError(t, err)
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// fetch new blocks
 	number, err := l1Client.BlockNumber(context.Background())
@@ -81,9 +80,8 @@ func testImportL2GasPrice(t *testing.T) {
 	l2Cfg := cfg.L2Config
 
 	// Create L2Relayer
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer l2Relayer.Stop()
 
 	// add fake blocks
 	traces := []*types.WrappedBlock{

bridge/tests/l1_message_relay_test.go

@@ -13,8 +13,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -33,16 +33,14 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	l2Cfg := cfg.L2Config
 
 	// Create L1Relayer
-	l1Relayer, err := l1.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer l1Relayer.Stop()
-
 	// Create L1Watcher
 	confirmations := rpc.LatestBlockNumber
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// Create L2Watcher
-	l2Watcher := l2.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
+	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
 
 	// send message through l1 messenger contract
 	nonce, err := l1MessengerInstance.MessageNonce(&bind.CallOpts{})
@@ -56,7 +54,7 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	}
 
 	// l1 watch process events
-	l1Watcher.FetchContractEvent(sendReceipt.BlockNumber.Uint64())
+	l1Watcher.FetchContractEvent()
 
 	// check db status
 	msg, err := db.GetL1MessageByQueueIndex(nonce.Uint64())
@@ -79,7 +77,7 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(relayTxReceipt.Logs), 1)
 
 	// fetch message relayed events
-	l2Watcher.FetchContractEvent(relayTxReceipt.BlockNumber.Uint64())
+	l2Watcher.FetchContractEvent()
 	msg, err = db.GetL1MessageByQueueIndex(nonce.Uint64())
 	assert.NoError(t, err)
 	assert.Equal(t, msg.Status, types.MsgConfirmed)

bridge/tests/l2_message_relay_test.go

@@ -13,8 +13,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -33,15 +33,15 @@ func testRelayL2MessageSucceed(t *testing.T) {
 
 	// Create L2Watcher
 	confirmations := rpc.LatestBlockNumber
-	l2Watcher := l2.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
+	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
 
 	// Create L2Relayer
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
 
 	// Create L1Watcher
 	l1Cfg := cfg.L1Config
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// send message through l2 messenger contract
 	nonce, err := l2MessengerInstance.MessageNonce(&bind.CallOpts{})
@@ -55,7 +55,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	}
 
 	// l2 watch process events
-	l2Watcher.FetchContractEvent(sendReceipt.BlockNumber.Uint64())
+	l2Watcher.FetchContractEvent()
 
 	// check db status
 	msg, err := db.GetL2MessageByNonce(nonce.Uint64())
@@ -123,7 +123,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(commitTxReceipt.Logs), 1)
 
 	// fetch CommitBatch rollup events
-	err = l1Watcher.FetchContractEvent(commitTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
@@ -144,7 +144,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(finalizeTxReceipt.Logs), 1)
 
 	// fetch FinalizeBatch events
-	err = l1Watcher.FetchContractEvent(finalizeTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
@@ -165,7 +165,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(relayTxReceipt.Logs), 1)
 
 	// fetch message relayed events
-	err = l1Watcher.FetchContractEvent(relayTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	msg, err = db.GetL2MessageByNonce(nonce.Uint64())
 	assert.NoError(t, err)

bridge/tests/rollup_test.go

@@ -12,8 +12,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -30,13 +30,12 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 
 	// Create L2Relayer
 	l2Cfg := cfg.L2Config
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer l2Relayer.Stop()
 
 	// Create L1Watcher
 	l1Cfg := cfg.L1Config
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// add some blocks to db
 	var wrappedBlocks []*types.WrappedBlock
@@ -96,7 +95,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.Equal(t, len(commitTxReceipt.Logs), 1)
 
 	// fetch rollup events
-	err = l1Watcher.FetchContractEvent(commitTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
@@ -126,7 +125,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.Equal(t, len(finalizeTxReceipt.Logs), 1)
 
 	// fetch rollup events
-	err = l1Watcher.FetchContractEvent(finalizeTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)

bridge/utils/confirmation_test.go

@@ -1,4 +1,4 @@
-package utils_test
+package utils
 
 import (
 	"context"
@@ -11,8 +11,6 @@ import (
 	"github.com/scroll-tech/go-ethereum/common/math"
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/rpc"
-
-	"scroll-tech/bridge/utils"
 )
 
 var (
@@ -65,15 +63,14 @@ func TestMarshalJSON(t *testing.T) {
 	for i, test := range tests {
 		var num rpc.BlockNumber
 		want, err := json.Marshal(test.expected)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 		if !test.mustFail {
 			err = json.Unmarshal([]byte(test.input), &num)
-			assert.Nil(t, err)
+			assert.NoError(t, err)
 			got, err := json.Marshal(&num)
-			assert.Nil(t, err)
+			assert.NoError(t, err)
 			if string(want) != string(got) {
 				t.Errorf("Test %d got unexpected value, want %d, got %d", i, test.expected, num)
-
 			}
 		}
 	}
@@ -88,20 +85,50 @@ func (e MockEthClient) BlockNumber(ctx context.Context) (uint64, error) {
 }
 
 func (e MockEthClient) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
-	return &types.Header{Number: new(big.Int).SetUint64(e.val)}, nil
+	var blockNumber int64
+	switch number.Int64() {
+	case int64(rpc.LatestBlockNumber):
+		blockNumber = int64(e.val)
+	case int64(rpc.SafeBlockNumber):
+		blockNumber = int64(e.val) - 6
+	case int64(rpc.FinalizedBlockNumber):
+		blockNumber = int64(e.val) - 12
+	default:
+		blockNumber = number.Int64()
+	}
+	if blockNumber < 0 {
+		blockNumber = 0
+	}
+
+	return &types.Header{Number: new(big.Int).SetInt64(blockNumber)}, nil
 }
 
 func TestGetLatestConfirmedBlockNumber(t *testing.T) {
 	ctx := context.Background()
 	client := MockEthClient{}
 
-	client.val = 5
-	confirmed, err := utils.GetLatestConfirmedBlockNumber(ctx, &client, 6)
-	assert.Nil(t, err)
-	assert.Equal(t, uint64(0), confirmed)
+	testCases := []struct {
+		blockNumber    uint64
+		confirmation   rpc.BlockNumber
+		expectedResult uint64
+	}{
+		{5, 6, 0},
+		{7, 6, 1},
+		{10, 2, 8},
+		{0, 1, 0},
+		{3, 0, 3},
+		{15, 15, 0},
+		{16, rpc.SafeBlockNumber, 10},
+		{22, rpc.FinalizedBlockNumber, 10},
+		{10, rpc.LatestBlockNumber, 10},
+		{5, rpc.SafeBlockNumber, 0},
+		{11, rpc.FinalizedBlockNumber, 0},
+	}
 
-	client.val = 7
-	confirmed, err = utils.GetLatestConfirmedBlockNumber(ctx, &client, 6)
-	assert.Nil(t, err)
-	assert.Equal(t, uint64(1), confirmed)
+	for _, testCase := range testCases {
+		client.val = testCase.blockNumber
+		confirmed, err := GetLatestConfirmedBlockNumber(ctx, &client, testCase.confirmation)
+		assert.NoError(t, err)
+		assert.Equal(t, testCase.expectedResult, confirmed)
+	}
 }

bridge/utils/utils.go

@@ -29,19 +29,6 @@ func ComputeMessageHash(
 	return common.BytesToHash(crypto.Keccak256(data))
 }
 
-// BufferToUint256Be convert bytes array to uint256 array assuming big-endian
-func BufferToUint256Be(buffer []byte) []*big.Int {
-	buffer256 := make([]*big.Int, len(buffer)/32)
-	for i := 0; i < len(buffer)/32; i++ {
-		buffer256[i] = big.NewInt(0)
-		for j := 0; j < 32; j++ {
-			buffer256[i] = buffer256[i].Lsh(buffer256[i], 8)
-			buffer256[i] = buffer256[i].Add(buffer256[i], big.NewInt(int64(buffer[i*32+j])))
-		}
-	}
-	return buffer256
-}
-
 // BufferToUint256Le convert bytes array to uint256 array assuming little-endian
 func BufferToUint256Le(buffer []byte) []*big.Int {
 	buffer256 := make([]*big.Int, len(buffer)/32)
@@ -76,23 +63,3 @@ func UnpackLog(c *abi.ABI, out interface{}, event string, log types.Log) error {
 	}
 	return abi.ParseTopics(out, indexed, log.Topics[1:])
 }
-
-// UnpackLogIntoMap unpacks a retrieved log into the provided map.
-// @todo: add unit test.
-func UnpackLogIntoMap(c *abi.ABI, out map[string]interface{}, event string, log types.Log) error {
-	if log.Topics[0] != c.Events[event].ID {
-		return fmt.Errorf("event signature mismatch")
-	}
-	if len(log.Data) > 0 {
-		if err := c.UnpackIntoMap(out, event, log.Data); err != nil {
-			return err
-		}
-	}
-	var indexed abi.Arguments
-	for _, arg := range c.Events[event].Inputs {
-		if arg.Indexed {
-			indexed = append(indexed, arg)
-		}
-	}
-	return abi.ParseTopicsIntoMap(out, indexed, log.Topics[1:])
-}

bridge/utils/utils_test.go

@@ -1,34 +1,32 @@
-package utils_test
+package utils
 
 import (
 	"math/big"
 	"testing"
 
-	"scroll-tech/bridge/utils"
-
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestKeccak2(t *testing.T) {
-	hash := utils.Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"))
+	hash := Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"))
 	if hash != common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5") {
 		t.Fatalf("Invalid keccak, want %s, got %s", "0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5", hash.Hex())
 	}
 
-	hash = utils.Keccak2(common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"), common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"))
+	hash = Keccak2(common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"), common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"))
 	if hash != common.HexToHash("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30") {
 		t.Fatalf("Invalid keccak, want %s, got %s", "0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30", hash.Hex())
 	}
 
-	hash = utils.Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000001"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000002"))
+	hash = Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000001"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000002"))
 	if hash != common.HexToHash("0xe90b7bceb6e7df5418fb78d8ee546e97c83a08bbccc01a0644d599ccd2a7c2e0") {
 		t.Fatalf("Invalid keccak, want %s, got %s", "0xe90b7bceb6e7df5418fb78d8ee546e97c83a08bbccc01a0644d599ccd2a7c2e0", hash.Hex())
 	}
 }
 
 func TestComputeMessageHash(t *testing.T) {
-	hash := utils.ComputeMessageHash(
+	hash := ComputeMessageHash(
 		common.HexToAddress("0x1C5A77d9FA7eF466951B2F01F724BCa3A5820b63"),
 		common.HexToAddress("0x4592D8f8D7B001e72Cb26A73e4Fa1806a51aC79d"),
 		big.NewInt(0),
@@ -37,3 +35,15 @@ func TestComputeMessageHash(t *testing.T) {
 	)
 	assert.Equal(t, "0xda253c04595a49017bb54b1b46088c69752b5ad2f0c47971ac76b8b25abec202", hash.String())
 }
+
+func TestBufferToUint256Le(t *testing.T) {
+	input := []byte{
+		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	}
+	expectedOutput := []*big.Int{big.NewInt(1)}
+	result := BufferToUint256Le(input)
+	assert.Equal(t, expectedOutput, result)
+}

bridge/watcher/batch_proposer.go

@@ -1,10 +1,9 @@
-package l2
+package watcher
 
 import (
 	"context"
 	"fmt"
 	"math"
-	"reflect"
 	"sync"
 	"time"
 
@@ -13,22 +12,22 @@ import (
 
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
-	"scroll-tech/common/utils"
 
 	"scroll-tech/database"
 
 	bridgeabi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
 )
 
 var (
 	bridgeL2BatchesGasOverThresholdTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l2/batches/gas/over/threshold/total", metrics.ScrollRegistry)
 	bridgeL2BatchesTxsOverThresholdTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l2/batches/txs/over/threshold/total", metrics.ScrollRegistry)
-	bridgeL2BatchesCommitTotalCounter           = geth_metrics.NewRegisteredCounter("bridge/l2/batches/commit/total", metrics.ScrollRegistry)
+	bridgeL2BatchesBlocksCreatedTotalCounter    = geth_metrics.NewRegisteredCounter("bridge/l2/batches/blocks/created/total", metrics.ScrollRegistry)
+	bridgeL2BatchesCommitsSentTotalCounter      = geth_metrics.NewRegisteredCounter("bridge/l2/batches/commits/sent/total", metrics.ScrollRegistry)
 
-	bridgeL2BatchesCreatedRateMeter    = geth_metrics.NewRegisteredMeter("bridge/l2/batches/blocks/created/rate", metrics.ScrollRegistry)
-	bridgeL2BatchesTxsCreatedRateMeter = geth_metrics.NewRegisteredMeter("bridge/l2/batches/txs/created/rate", metrics.ScrollRegistry)
-	bridgeL2BatchesGasCreatedRateMeter = geth_metrics.NewRegisteredMeter("bridge/l2/batches/gas/created/rate", metrics.ScrollRegistry)
+	bridgeL2BatchesTxsCreatedPerBatchGauge = geth_metrics.NewRegisteredGauge("bridge/l2/batches/txs/created/per/batch", metrics.ScrollRegistry)
+	bridgeL2BatchesGasCreatedPerBatchGauge = geth_metrics.NewRegisteredGauge("bridge/l2/batches/gas/created/per/batch", metrics.ScrollRegistry)
 )
 
 // AddBatchInfoToDB inserts the batch information to the BlockBatch table and updates the batch_hash
@@ -83,15 +82,13 @@ type BatchProposer struct {
 
 	proofGenerationFreq uint64
 	batchDataBuffer     []*types.BatchData
-	relayer             *Layer2Relayer
+	relayer             *relayer.Layer2Relayer
 
 	piCfg *types.PublicInputHashConfig
-
-	stopCh chan struct{}
 }
 
 // NewBatchProposer will return a new instance of BatchProposer.
-func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, relayer *Layer2Relayer, orm database.OrmFactory) *BatchProposer {
+func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, relayer *relayer.Layer2Relayer, orm database.OrmFactory) *BatchProposer {
 	p := &BatchProposer{
 		mutex:                    sync.Mutex{},
 		ctx:                      ctx,
@@ -107,42 +104,17 @@ func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, rela
 		proofGenerationFreq:      cfg.ProofGenerationFreq,
 		piCfg:                    cfg.PublicInputConfig,
 		relayer:                  relayer,
-		stopCh:                   make(chan struct{}),
 	}
 
 	// for graceful restart.
 	p.recoverBatchDataBuffer()
 
 	// try to commit the leftover pending batches
-	p.tryCommitBatches()
+	p.TryCommitBatches()
 
 	return p
 }
 
-// Start the Listening process
-func (p *BatchProposer) Start() {
-	go func() {
-		if reflect.ValueOf(p.orm).IsNil() {
-			panic("must run BatchProposer with DB")
-		}
-
-		ctx, cancel := context.WithCancel(p.ctx)
-
-		go utils.Loop(ctx, 2*time.Second, func() {
-			p.tryProposeBatch()
-			p.tryCommitBatches()
-		})
-
-		<-p.stopCh
-		cancel()
-	}()
-}
-
-// Stop the Watcher module, for a graceful shutdown.
-func (p *BatchProposer) Stop() {
-	p.stopCh <- struct{}{}
-}
-
 func (p *BatchProposer) recoverBatchDataBuffer() {
 	// batches are sorted by batch index in increasing order
 	batchHashes, err := p.orm.GetPendingBatches(math.MaxInt32)
@@ -214,7 +186,8 @@ func (p *BatchProposer) recoverBatchDataBuffer() {
 	}
 }
 
-func (p *BatchProposer) tryProposeBatch() {
+// TryProposeBatch will try to propose a batch.
+func (p *BatchProposer) TryProposeBatch() {
 	p.mutex.Lock()
 	defer p.mutex.Unlock()
 
@@ -243,7 +216,8 @@ func (p *BatchProposer) tryProposeBatch() {
 	}
 }
 
-func (p *BatchProposer) tryCommitBatches() {
+// TryCommitBatches will try to commit the pending batches.
+func (p *BatchProposer) TryCommitBatches() {
 	p.mutex.Lock()
 	defer p.mutex.Unlock()
 
@@ -283,7 +257,7 @@ func (p *BatchProposer) tryCommitBatches() {
 		log.Error("SendCommitTx failed", "error", err)
 	} else {
 		// pop the processed batches from the buffer
-		bridgeL2BatchesCommitTotalCounter.Inc(1)
+		bridgeL2BatchesCommitsSentTotalCounter.Inc(1)
 		p.batchDataBuffer = p.batchDataBuffer[index:]
 	}
 }
@@ -293,15 +267,49 @@ func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) bool {
 		return false
 	}
 
+	approximatePayloadSize := func(hash string) (uint64, error) {
+		traces, err := p.orm.GetL2WrappedBlocks(map[string]interface{}{"hash": hash})
+		if err != nil {
+			return 0, err
+		}
+		if len(traces) != 1 {
+			return 0, fmt.Errorf("unexpected traces length, expected = 1, actual = %d", len(traces))
+		}
+		size := 0
+		for _, tx := range traces[0].Transactions {
+			size += len(tx.Data)
+		}
+		return uint64(size), nil
+	}
+
+	firstSize, err := approximatePayloadSize(blocks[0].Hash)
+	if err != nil {
+		log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
+		return false
+	}
+
+	if firstSize > p.commitCalldataSizeLimit {
+		log.Warn("oversized payload even for only 1 block", "height", blocks[0].Number, "size", firstSize)
+		// note: we should probably fail here once we can ensure this will not happen
+		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
+			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
+			return false
+		}
+		bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(blocks[0].TxNum))
+		bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(blocks[0].GasUsed))
+		bridgeL2BatchesBlocksCreatedTotalCounter.Inc(1)
+		return true
+	}
+
 	if blocks[0].GasUsed > p.batchGasThreshold {
 		bridgeL2BatchesGasOverThresholdTotalCounter.Inc(1)
 		log.Warn("gas overflow even for only 1 block", "height", blocks[0].Number, "gas", blocks[0].GasUsed)
 		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
 			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
 		} else {
-			bridgeL2BatchesTxsCreatedRateMeter.Mark(int64(blocks[0].TxNum))
-			bridgeL2BatchesGasCreatedRateMeter.Mark(int64(blocks[0].GasUsed))
-			bridgeL2BatchesCreatedRateMeter.Mark(1)
+			bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(blocks[0].TxNum))
+			bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(blocks[0].GasUsed))
+			bridgeL2BatchesBlocksCreatedTotalCounter.Inc(1)
 		}
 		return true
 	}
@@ -312,24 +320,31 @@ func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) bool {
 		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
 			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
 		} else {
-			bridgeL2BatchesTxsCreatedRateMeter.Mark(int64(blocks[0].TxNum))
-			bridgeL2BatchesGasCreatedRateMeter.Mark(int64(blocks[0].GasUsed))
-			bridgeL2BatchesCreatedRateMeter.Mark(1)
+			bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(blocks[0].TxNum))
+			bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(blocks[0].GasUsed))
+			bridgeL2BatchesBlocksCreatedTotalCounter.Inc(1)
 		}
 		return true
 	}
 
-	var gasUsed, txNum uint64
+	var gasUsed, txNum, payloadSize uint64
 	reachThreshold := false
 	// add blocks into batch until reach batchGasThreshold
 	for i, block := range blocks {
-		if (gasUsed+block.GasUsed > p.batchGasThreshold) || (txNum+block.TxNum > p.batchTxNumThreshold) {
+		size, err := approximatePayloadSize(block.Hash)
+		if err != nil {
+			log.Error("failed to create batch", "number", block.Number, "err", err)
+			return false
+		}
+
+		if (gasUsed+block.GasUsed > p.batchGasThreshold) || (txNum+block.TxNum > p.batchTxNumThreshold) || (payloadSize+size > p.commitCalldataSizeLimit) {
 			blocks = blocks[:i]
 			reachThreshold = true
 			break
 		}
 		gasUsed += block.GasUsed
 		txNum += block.TxNum
+		payloadSize += size
 	}
 
 	// if too few gas gathered, but we don't want to halt, we then check the first block in the batch:
@@ -342,9 +357,9 @@ func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) bool {
 	if err := p.createBatchForBlocks(blocks); err != nil {
 		log.Error("failed to create batch", "from", blocks[0].Number, "to", blocks[len(blocks)-1].Number, "err", err)
 	} else {
-		bridgeL2BatchesTxsCreatedRateMeter.Mark(int64(txNum))
-		bridgeL2BatchesGasCreatedRateMeter.Mark(int64(gasUsed))
-		bridgeL2BatchesCreatedRateMeter.Mark(int64(len(blocks)))
+		bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(txNum))
+		bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(gasUsed))
+		bridgeL2BatchesBlocksCreatedTotalCounter.Inc(int64(len(blocks)))
 	}
 
 	return true

bridge/watcher/batch_proposer_test.go

@@ -0,0 +1,199 @@
+package watcher
+
+import (
+	"context"
+	"fmt"
+	"math"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+
+	"scroll-tech/common/types"
+)
+
+func testBatchProposerProposeBatch(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	p := &BatchProposer{
+		batchGasThreshold:       1000,
+		batchTxNumThreshold:     10,
+		batchTimeSec:            300,
+		commitCalldataSizeLimit: 500,
+		orm:                     db,
+	}
+	patchGuard := gomonkey.ApplyMethodFunc(p.orm, "GetL2WrappedBlocks", func(fields map[string]interface{}, args ...string) ([]*types.WrappedBlock, error) {
+		hash, _ := fields["hash"].(string)
+		if hash == "blockWithLongData" {
+			longData := strings.Repeat("0", 1000)
+			return []*types.WrappedBlock{{
+				Transactions: []*geth_types.TransactionData{{
+					Data: longData,
+				}},
+			}}, nil
+		}
+		return []*types.WrappedBlock{{
+			Transactions: []*geth_types.TransactionData{{
+				Data: "short",
+			}},
+		}}, nil
+	})
+	defer patchGuard.Reset()
+	patchGuard.ApplyPrivateMethod(p, "createBatchForBlocks", func(*BatchProposer, []*types.BlockInfo) error {
+		return nil
+	})
+
+	block1 := &types.BlockInfo{Number: 1, GasUsed: 100, TxNum: 1, BlockTimestamp: uint64(time.Now().Unix()) - 200}
+	block2 := &types.BlockInfo{Number: 2, GasUsed: 200, TxNum: 2, BlockTimestamp: uint64(time.Now().Unix())}
+	block3 := &types.BlockInfo{Number: 3, GasUsed: 300, TxNum: 11, BlockTimestamp: uint64(time.Now().Unix())}
+	block4 := &types.BlockInfo{Number: 4, GasUsed: 1001, TxNum: 3, BlockTimestamp: uint64(time.Now().Unix())}
+	blockOutdated := &types.BlockInfo{Number: 1, GasUsed: 100, TxNum: 1, BlockTimestamp: uint64(time.Now().Add(-400 * time.Second).Unix())}
+	blockWithLongData := &types.BlockInfo{Hash: "blockWithLongData", Number: 5, GasUsed: 500, TxNum: 1, BlockTimestamp: uint64(time.Now().Unix())}
+
+	testCases := []struct {
+		description string
+		blocks      []*types.BlockInfo
+		expectedRes bool
+	}{
+		{"Empty block list", []*types.BlockInfo{}, false},
+		{"Single block exceeding gas threshold", []*types.BlockInfo{block4}, true},
+		{"Single block exceeding transaction number threshold", []*types.BlockInfo{block3}, true},
+		{"Multiple blocks meeting thresholds", []*types.BlockInfo{block1, block2, block3}, true},
+		{"Multiple blocks not meeting thresholds", []*types.BlockInfo{block1, block2}, false},
+		{"Outdated and valid block", []*types.BlockInfo{blockOutdated, block2}, true},
+		{"Single block with long data", []*types.BlockInfo{blockWithLongData}, true},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			assert.Equal(t, tc.expectedRes, p.proposeBatch(tc.blocks), "Failed on: %s", tc.description)
+		})
+	}
+}
+
+func testBatchProposerBatchGeneration(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+
+	defer func() {
+		cancel()
+		db.Close()
+	}()
+
+	// Insert traces into db.
+	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock1}))
+
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	loopToFetchEvent(subCtx, wc)
+
+	batch, err := db.GetLatestBatch()
+	assert.NoError(t, err)
+
+	// Create a new batch.
+	batchData := types.NewBatchData(&types.BlockBatch{
+		Index:     0,
+		Hash:      batch.Hash,
+		StateRoot: batch.StateRoot,
+	}, []*types.WrappedBlock{wrappedBlock1}, nil)
+
+	relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+
+	proposer := NewBatchProposer(context.Background(), &config.BatchProposerConfig{
+		ProofGenerationFreq: 1,
+		BatchGasThreshold:   3000000,
+		BatchTxNumThreshold: 135,
+		BatchTimeSec:        1,
+		BatchBlocksLimit:    100,
+	}, relayer, db)
+	proposer.TryProposeBatch()
+
+	infos, err := db.GetUnbatchedL2Blocks(map[string]interface{}{},
+		fmt.Sprintf("order by number ASC LIMIT %d", 100))
+	assert.NoError(t, err)
+	assert.Equal(t, 0, len(infos))
+
+	exist, err := db.BatchRecordExist(batchData.Hash().Hex())
+	assert.NoError(t, err)
+	assert.Equal(t, true, exist)
+}
+
+func testBatchProposerGracefulRestart(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Insert traces into db.
+	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock2}))
+
+	// Insert block batch into db.
+	batchData1 := types.NewBatchData(&types.BlockBatch{
+		Index:     0,
+		Hash:      common.Hash{}.String(),
+		StateRoot: common.Hash{}.String(),
+	}, []*types.WrappedBlock{wrappedBlock1}, nil)
+
+	parentBatch2 := &types.BlockBatch{
+		Index:     batchData1.Batch.BatchIndex,
+		Hash:      batchData1.Hash().Hex(),
+		StateRoot: batchData1.Batch.NewStateRoot.String(),
+	}
+	batchData2 := types.NewBatchData(parentBatch2, []*types.WrappedBlock{wrappedBlock2}, nil)
+
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData2))
+	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{
+		batchData1.Batch.Blocks[0].BlockNumber}, batchData1.Hash().Hex()))
+	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{
+		batchData2.Batch.Blocks[0].BlockNumber}, batchData2.Hash().Hex()))
+	assert.NoError(t, dbTx.Commit())
+
+	assert.NoError(t, db.UpdateRollupStatus(context.Background(), batchData1.Hash().Hex(), types.RollupFinalized))
+
+	batchHashes, err := db.GetPendingBatches(math.MaxInt32)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(batchHashes))
+	assert.Equal(t, batchData2.Hash().Hex(), batchHashes[0])
+	// test p.recoverBatchDataBuffer().
+	_ = NewBatchProposer(context.Background(), &config.BatchProposerConfig{
+		ProofGenerationFreq: 1,
+		BatchGasThreshold:   3000000,
+		BatchTxNumThreshold: 135,
+		BatchTimeSec:        1,
+		BatchBlocksLimit:    100,
+	}, relayer, db)
+
+	batchHashes, err = db.GetPendingBatches(math.MaxInt32)
+	assert.NoError(t, err)
+	assert.Equal(t, 0, len(batchHashes))
+
+	exist, err := db.BatchRecordExist(batchData2.Hash().Hex())
+	assert.NoError(t, err)
+	assert.Equal(t, true, exist)
+}

bridge/watcher/common.go

@@ -0,0 +1,11 @@
+package watcher
+
+import "github.com/scroll-tech/go-ethereum/common"
+
+const contractEventsBlocksFetchLimit = int64(10)
+
+type relayedMessage struct {
+	msgHash      common.Hash
+	txHash       common.Hash
+	isSuccessful bool
+}

bridge/watcher/l1_watcher.go

@@ -1,9 +1,8 @@
-package l1
+package watcher
 
 import (
 	"context"
 	"math/big"
-	"time"
 
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
@@ -15,12 +14,10 @@ import (
 	geth_metrics "github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/rpc"
 
-	"scroll-tech/database"
-
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
-	cutil "scroll-tech/common/utils"
+	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/utils"
@@ -34,20 +31,14 @@ var (
 	bridgeL1MsgsRollupEventsTotalCounter  = geth_metrics.NewRegisteredCounter("bridge/l1/msgs/rollup/events/total", metrics.ScrollRegistry)
 )
 
-type relayedMessage struct {
-	msgHash      common.Hash
-	txHash       common.Hash
-	isSuccessful bool
-}
-
 type rollupEvent struct {
 	batchHash common.Hash
 	txHash    common.Hash
 	status    types.RollupStatus
 }
 
-// Watcher will listen for smart contract events from Eth L1.
-type Watcher struct {
+// L1WatcherClient will listen for smart contract events from Eth L1.
+type L1WatcherClient struct {
 	ctx    context.Context
 	client *ethclient.Client
 	db     database.OrmFactory
@@ -68,13 +59,10 @@ type Watcher struct {
 	processedMsgHeight uint64
 	// The height of the block that the watcher has retrieved header rlp
 	processedBlockHeight uint64
-
-	stopCh chan bool
 }
 
-// NewWatcher returns a new instance of Watcher. The instance will be not fully prepared,
-// and still needs to be finalized and ran by calling `watcher.Start`.
-func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db database.OrmFactory) *Watcher {
+// NewL1WatcherClient returns a new instance of L1WatcherClient.
+func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db database.OrmFactory) *L1WatcherClient {
 	savedHeight, err := db.GetLayer1LatestWatchedHeight()
 	if err != nil {
 		log.Warn("Failed to fetch height from db", "err", err)
@@ -93,9 +81,7 @@ func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint6
 		savedL1BlockHeight = startHeight
 	}
 
-	stopCh := make(chan bool)
-
-	return &Watcher{
+	return &L1WatcherClient{
 		ctx:           ctx,
 		client:        client,
 		db:            db,
@@ -112,51 +98,29 @@ func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint6
 
 		processedMsgHeight:   uint64(savedHeight),
 		processedBlockHeight: savedL1BlockHeight,
-		stopCh:               stopCh,
 	}
 }
 
-// Start the Watcher module.
-func (w *Watcher) Start() {
-	go func() {
-		ctx, cancel := context.WithCancel(w.ctx)
-
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				if err := w.FetchBlockHeader(number); err != nil {
-					log.Error("Failed to fetch L1 block header", "lastest", number, "err", err)
-				}
-			}
-		})
-
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				if err := w.FetchContractEvent(number); err != nil {
-					log.Error("Failed to fetch bridge contract", "err", err)
-				}
-			}
-		})
-
-		<-w.stopCh
-		cancel()
-	}()
+// ProcessedBlockHeight get processedBlockHeight
+// Currently only use for unit test
+func (w *L1WatcherClient) ProcessedBlockHeight() uint64 {
+	return w.processedBlockHeight
 }
 
-// Stop the Watcher module, for a graceful shutdown.
-func (w *Watcher) Stop() {
-	w.stopCh <- true
+// Confirmations get confirmations
+// Currently only use for unit test
+func (w *L1WatcherClient) Confirmations() rpc.BlockNumber {
+	return w.confirmations
 }
 
-const contractEventsBlocksFetchLimit = int64(10)
+// SetConfirmations set the confirmations for L1WatcherClient
+// Currently only use for unit test
+func (w *L1WatcherClient) SetConfirmations(confirmations rpc.BlockNumber) {
+	w.confirmations = confirmations
+}
 
 // FetchBlockHeader pull latest L1 blocks and save in DB
-func (w *Watcher) FetchBlockHeader(blockHeight uint64) error {
+func (w *L1WatcherClient) FetchBlockHeader(blockHeight uint64) error {
 	fromBlock := int64(w.processedBlockHeight) + 1
 	toBlock := int64(blockHeight)
 	if toBlock < fromBlock {
@@ -202,10 +166,15 @@ func (w *Watcher) FetchBlockHeader(blockHeight uint64) error {
 }
 
 // FetchContractEvent pull latest event logs from given contract address and save in DB
-func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
+func (w *L1WatcherClient) FetchContractEvent() error {
 	defer func() {
 		log.Info("l1 watcher fetchContractEvent", "w.processedMsgHeight", w.processedMsgHeight)
 	}()
+	blockHeight, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.client, w.confirmations)
+	if err != nil {
+		log.Error("failed to get block number", "err", err)
+		return err
+	}
 
 	fromBlock := int64(w.processedMsgHeight) + 1
 	toBlock := int64(blockHeight)
@@ -318,7 +287,7 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 	return nil
 }
 
-func (w *Watcher) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L1Message, []relayedMessage, []rollupEvent, error) {
+func (w *L1WatcherClient) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L1Message, []relayedMessage, []rollupEvent, error) {
 	// Need use contract abi to parse event Log
 	// Can only be tested after we have our contracts set up
 

bridge/watcher/l1_watcher_test.go

@@ -0,0 +1,514 @@
+package watcher
+
+import (
+	"context"
+	"errors"
+	"math/big"
+	"testing"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum"
+	"github.com/scroll-tech/go-ethereum/accounts/abi"
+	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/scroll-tech/go-ethereum/core/types"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/rpc"
+	"github.com/smartystreets/goconvey/convey"
+	"github.com/stretchr/testify/assert"
+
+	bridge_abi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/utils"
+
+	commonTypes "scroll-tech/common/types"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+func setupL1Watcher(t *testing.T) (*L1WatcherClient, database.OrmFactory) {
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+
+	client, err := ethclient.Dial(base.L1gethImg.Endpoint())
+	assert.NoError(t, err)
+
+	l1Cfg := cfg.L1Config
+
+	watcher := NewL1WatcherClient(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
+	assert.NoError(t, watcher.FetchContractEvent())
+	return watcher, db
+}
+
+func testFetchContractEvent(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+	assert.NoError(t, watcher.FetchContractEvent())
+}
+
+func testL1WatcherClientFetchBlockHeader(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+	convey.Convey("test toBlock < fromBlock", t, func() {
+		var blockHeight uint64
+		if watcher.ProcessedBlockHeight() <= 0 {
+			blockHeight = 0
+		} else {
+			blockHeight = watcher.ProcessedBlockHeight() - 1
+		}
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.NoError(t, err)
+	})
+
+	convey.Convey("test get header from client error", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			return nil, ethereum.NotFound
+		})
+		defer patchGuard.Reset()
+
+		var blockHeight uint64 = 10
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.Error(t, err)
+	})
+
+	convey.Convey("insert l1 block error", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			if height == nil {
+				height = big.NewInt(100)
+			}
+			t.Log(height)
+			return &types.Header{
+				BaseFee: big.NewInt(100),
+			}, nil
+		})
+		defer patchGuard.Reset()
+
+		patchGuard.ApplyMethodFunc(db, "InsertL1Blocks", func(ctx context.Context, blocks []*commonTypes.L1BlockInfo) error {
+			return errors.New("insert failed")
+		})
+
+		var blockHeight uint64 = 10
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.Error(t, err)
+	})
+
+	convey.Convey("fetch block header success", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			if height == nil {
+				height = big.NewInt(100)
+			}
+			t.Log(height)
+			return &types.Header{
+				BaseFee: big.NewInt(100),
+			}, nil
+		})
+		defer patchGuard.Reset()
+
+		patchGuard.ApplyMethodFunc(db, "InsertL1Blocks", func(ctx context.Context, blocks []*commonTypes.L1BlockInfo) error {
+			return nil
+		})
+
+		var blockHeight uint64 = 10
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.NoError(t, err)
+	})
+}
+
+func testL1WatcherClientFetchContractEvent(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	watcher.SetConfirmations(rpc.SafeBlockNumber)
+	convey.Convey("get latest confirmed block number failure", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			return nil, ethereum.NotFound
+		})
+		defer patchGuard.Reset()
+		err := watcher.FetchContractEvent()
+		assert.Error(t, err)
+	})
+
+	var c *ethclient.Client
+	patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+		if height == nil {
+			height = big.NewInt(100)
+		}
+		t.Log(height)
+		return &types.Header{
+			Number:  big.NewInt(100),
+			BaseFee: big.NewInt(100),
+		}, nil
+	})
+	defer patchGuard.Reset()
+
+	convey.Convey("filter logs failure", t, func() {
+		targetErr := errors.New("call filter failure")
+		patchGuard.ApplyMethodFunc(c, "FilterLogs", func(ctx context.Context, q ethereum.FilterQuery) ([]types.Log, error) {
+			return nil, targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.EqualError(t, err, targetErr.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(c, "FilterLogs", func(ctx context.Context, q ethereum.FilterQuery) ([]types.Log, error) {
+		return []types.Log{
+			{
+				Address: common.HexToAddress("0x0000000000000000000000000000000000000000"),
+			},
+		}, nil
+	})
+
+	convey.Convey("parse bridge event logs failure", t, func() {
+		targetErr := errors.New("parse log failure")
+		patchGuard.ApplyPrivateMethod(watcher, "parseBridgeEventLogs", func(*L1WatcherClient, []geth_types.Log) ([]*commonTypes.L1Message, []relayedMessage, []rollupEvent, error) {
+			return nil, nil, nil, targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, err.Error(), targetErr.Error())
+	})
+
+	patchGuard.ApplyPrivateMethod(watcher, "parseBridgeEventLogs", func(*L1WatcherClient, []geth_types.Log) ([]*commonTypes.L1Message, []relayedMessage, []rollupEvent, error) {
+		rollupEvents := []rollupEvent{
+			{
+				batchHash: common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+				txHash:    common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				status:    commonTypes.RollupFinalized,
+			},
+			{
+				batchHash: common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				txHash:    common.HexToHash("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30"),
+				status:    commonTypes.RollupCommitted,
+			},
+		}
+
+		relayedMessageEvents := []relayedMessage{
+			{
+				msgHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+				txHash:       common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				isSuccessful: true,
+			},
+			{
+				msgHash:      common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				txHash:       common.HexToHash("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30"),
+				isSuccessful: false,
+			},
+		}
+		return nil, relayedMessageEvents, rollupEvents, nil
+	})
+
+	convey.Convey("db get rollup status by hash list failure", t, func() {
+		targetErr := errors.New("get db failure")
+		patchGuard.ApplyMethodFunc(db, "GetRollupStatusByHashList", func(hashes []string) ([]commonTypes.RollupStatus, error) {
+			return nil, targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, err.Error(), targetErr.Error())
+	})
+
+	convey.Convey("rollup status mismatch batch hashes length", t, func() {
+		patchGuard.ApplyMethodFunc(db, "GetRollupStatusByHashList", func(hashes []string) ([]commonTypes.RollupStatus, error) {
+			s := []commonTypes.RollupStatus{
+				commonTypes.RollupFinalized,
+			}
+			return s, nil
+		})
+		err := watcher.FetchContractEvent()
+		assert.NoError(t, err)
+	})
+
+	patchGuard.ApplyMethodFunc(db, "GetRollupStatusByHashList", func(hashes []string) ([]commonTypes.RollupStatus, error) {
+		s := []commonTypes.RollupStatus{
+			commonTypes.RollupPending,
+			commonTypes.RollupCommitting,
+		}
+		return s, nil
+	})
+
+	convey.Convey("db update RollupFinalized status failure", t, func() {
+		targetErr := errors.New("UpdateFinalizeTxHashAndRollupStatus RollupFinalized failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateFinalizeTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateFinalizeTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+		return nil
+	})
+
+	convey.Convey("db update RollupCommitted status failure", t, func() {
+		targetErr := errors.New("UpdateCommitTxHashAndRollupStatus RollupCommitted failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateCommitTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateCommitTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+		return nil
+	})
+
+	convey.Convey("db update layer2 status and layer1 hash failure", t, func() {
+		targetErr := errors.New("UpdateLayer2StatusAndLayer1Hash failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateLayer2StatusAndLayer1Hash", func(context.Context, string, commonTypes.MsgStatus, string) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateLayer2StatusAndLayer1Hash", func(context.Context, string, commonTypes.MsgStatus, string) error {
+		return nil
+	})
+
+	convey.Convey("db save l1 message failure", t, func() {
+		targetErr := errors.New("SaveL1Messages failure")
+		patchGuard.ApplyMethodFunc(db, "SaveL1Messages", func(context.Context, []*commonTypes.L1Message) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "SaveL1Messages", func(context.Context, []*commonTypes.L1Message) error {
+		return nil
+	})
+
+	convey.Convey("FetchContractEvent success", t, func() {
+		err := watcher.FetchContractEvent()
+		assert.NoError(t, err)
+	})
+}
+
+func testParseBridgeEventLogsL1QueueTransactionEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1QueueTransactionEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack QueueTransaction log failure", t, func() {
+		targetErr := errors.New("UnpackLog QueueTransaction failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1QueueTransactionEventSignature success", t, func() {
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1QueueTransactionEvent)
+			tmpOut.QueueIndex = big.NewInt(100)
+			tmpOut.Data = []byte("test data")
+			tmpOut.Sender = common.HexToAddress("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30")
+			tmpOut.Value = big.NewInt(1000)
+			tmpOut.Target = common.HexToAddress("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+			tmpOut.GasLimit = big.NewInt(10)
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+		assert.Len(t, l2Messages, 1)
+		assert.Equal(t, l2Messages[0].Value, big.NewInt(1000).String())
+	})
+}
+
+func testParseBridgeEventLogsL1RelayedMessageEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1RelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack RelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog RelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1RelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1RelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, rollupEvents)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL1FailedRelayedMessageEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1FailedRelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack FailedRelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog FailedRelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1FailedRelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1FailedRelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, rollupEvents)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL1CommitBatchEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1CommitBatchEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack CommitBatch log failure", t, func() {
+		targetErr := errors.New("UnpackLog CommitBatch failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1CommitBatchEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1CommitBatchEvent)
+			tmpOut.BatchHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Len(t, rollupEvents, 1)
+		assert.Equal(t, rollupEvents[0].batchHash, msgHash)
+		assert.Equal(t, rollupEvents[0].status, commonTypes.RollupCommitted)
+	})
+}
+
+func testParseBridgeEventLogsL1FinalizeBatchEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1FinalizeBatchEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack FinalizeBatch log failure", t, func() {
+		targetErr := errors.New("UnpackLog FinalizeBatch failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1FinalizeBatchEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1FinalizeBatchEvent)
+			tmpOut.BatchHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Len(t, rollupEvents, 1)
+		assert.Equal(t, rollupEvents[0].batchHash, msgHash)
+		assert.Equal(t, rollupEvents[0].status, commonTypes.RollupFinalized)
+	})
+}

bridge/watcher/l2_watcher.go

@@ -1,12 +1,10 @@
-package l2
+package watcher
 
 import (
 	"context"
 	"errors"
 	"fmt"
 	"math/big"
-	"reflect"
-	"time"
 
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
@@ -19,11 +17,10 @@ import (
 	geth_metrics "github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/rpc"
 
-	"scroll-tech/database"
-
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
-	cutil "scroll-tech/common/utils"
+
+	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/utils"
@@ -32,22 +29,16 @@ import (
 // Metrics
 var (
 	bridgeL2MsgsSyncHeightGauge      = geth_metrics.NewRegisteredGauge("bridge/l2/msgs/sync/height", metrics.ScrollRegistry)
-	bridgeL2TracesFetchedHeightGauge = geth_metrics.NewRegisteredGauge("bridge/l2/traces/fetched/height", metrics.ScrollRegistry)
-	bridgeL2TracesFetchedGapGauge    = geth_metrics.NewRegisteredGauge("bridge/l2/traces/fetched/gap", metrics.ScrollRegistry)
+	bridgeL2BlocksFetchedHeightGauge = geth_metrics.NewRegisteredGauge("bridge/l2/blocks/fetched/height", metrics.ScrollRegistry)
+	bridgeL2BlocksFetchedGapGauge    = geth_metrics.NewRegisteredGauge("bridge/l2/blocks/fetched/gap", metrics.ScrollRegistry)
 
 	bridgeL2MsgsSentEventsTotalCounter    = geth_metrics.NewRegisteredCounter("bridge/l2/msgs/sent/events/total", metrics.ScrollRegistry)
 	bridgeL2MsgsAppendEventsTotalCounter  = geth_metrics.NewRegisteredCounter("bridge/l2/msgs/append/events/total", metrics.ScrollRegistry)
 	bridgeL2MsgsRelayedEventsTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l2/msgs/relayed/events/total", metrics.ScrollRegistry)
 )
 
-type relayedMessage struct {
-	msgHash      common.Hash
-	txHash       common.Hash
-	isSuccessful bool
-}
-
-// WatcherClient provide APIs which support others to subscribe to various event from l2geth
-type WatcherClient struct {
+// L2WatcherClient provide APIs which support others to subscribe to various event from l2geth
+type L2WatcherClient struct {
 	ctx context.Context
 	event.Feed
 
@@ -68,18 +59,17 @@ type WatcherClient struct {
 	processedMsgHeight uint64
 
 	stopped uint64
-	stopCh  chan struct{}
 }
 
 // NewL2WatcherClient take a l2geth instance to generate a l2watcherclient instance
-func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, orm database.OrmFactory) *WatcherClient {
+func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, orm database.OrmFactory) *L2WatcherClient {
 	savedHeight, err := orm.GetLayer2LatestWatchedHeight()
 	if err != nil {
 		log.Warn("fetch height from db failed", "err", err)
 		savedHeight = 0
 	}
 
-	w := WatcherClient{
+	w := L2WatcherClient{
 		ctx:                ctx,
 		Client:             client,
 		orm:                orm,
@@ -93,7 +83,6 @@ func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmat
 		messageQueueABI:      bridge_abi.L2MessageQueueABI,
 		withdrawTrieRootSlot: withdrawTrieRootSlot,
 
-		stopCh:  make(chan struct{}),
 		stopped: 0,
 	}
 
@@ -105,7 +94,7 @@ func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmat
 	return &w
 }
 
-func (w *WatcherClient) initializeGenesis() error {
+func (w *L2WatcherClient) initializeGenesis() error {
 	if count, err := w.orm.GetBatchCount(); err != nil {
 		return fmt.Errorf("failed to get batch count: %v", err)
 	} else if count > 0 {
@@ -143,46 +132,10 @@ func (w *WatcherClient) initializeGenesis() error {
 	return nil
 }
 
-// Start the Listening process
-func (w *WatcherClient) Start() {
-	go func() {
-		if reflect.ValueOf(w.orm).IsNil() {
-			panic("must run L2 watcher with DB")
-		}
-
-		ctx, cancel := context.WithCancel(w.ctx)
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.Client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				w.tryFetchRunningMissingBlocks(ctx, number)
-			}
-		})
-
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.Client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				w.FetchContractEvent(number)
-			}
-		})
-
-		<-w.stopCh
-		cancel()
-	}()
-}
-
-// Stop the Watcher module, for a graceful shutdown.
-func (w *WatcherClient) Stop() {
-	w.stopCh <- struct{}{}
-}
-
 const blockTracesFetchLimit = uint64(10)
 
-// try fetch missing blocks if inconsistent
-func (w *WatcherClient) tryFetchRunningMissingBlocks(ctx context.Context, blockHeight uint64) {
+// TryFetchRunningMissingBlocks try fetch missing blocks if inconsistent
+func (w *L2WatcherClient) TryFetchRunningMissingBlocks(ctx context.Context, blockHeight uint64) {
 	// Get newest block in DB. must have blocks at that time.
 	// Don't use "block_trace" table "trace" column's BlockTrace.Number,
 	// because it might be empty if the corresponding rollup_result is finalized/finalization_skipped
@@ -210,8 +163,8 @@ func (w *WatcherClient) tryFetchRunningMissingBlocks(ctx context.Context, blockH
 			log.Error("fail to getAndStoreBlockTraces", "from", from, "to", to, "err", err)
 			return
 		}
-		bridgeL2TracesFetchedHeightGauge.Update(int64(to))
-		bridgeL2TracesFetchedGapGauge.Update(int64(blockHeight - to))
+		bridgeL2BlocksFetchedHeightGauge.Update(int64(to))
+		bridgeL2BlocksFetchedGapGauge.Update(int64(blockHeight - to))
 	}
 }
 
@@ -238,7 +191,7 @@ func txsToTxsData(txs geth_types.Transactions) []*geth_types.TransactionData {
 	return txsData
 }
 
-func (w *WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uint64) error {
+func (w *L2WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uint64) error {
 	var blocks []*types.WrappedBlock
 
 	for number := from; number <= to; number++ {
@@ -271,14 +224,18 @@ func (w *WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uin
 	return nil
 }
 
-const contractEventsBlocksFetchLimit = int64(10)
-
 // FetchContractEvent pull latest event logs from given contract address and save in DB
-func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
+func (w *L2WatcherClient) FetchContractEvent() {
 	defer func() {
 		log.Info("l2 watcher fetchContractEvent", "w.processedMsgHeight", w.processedMsgHeight)
 	}()
 
+	blockHeight, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.Client, w.confirmations)
+	if err != nil {
+		log.Error("failed to get block number", "err", err)
+		return
+	}
+
 	fromBlock := int64(w.processedMsgHeight) + 1
 	toBlock := int64(blockHeight)
 
@@ -354,7 +311,7 @@ func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
 	}
 }
 
-func (w *WatcherClient) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L2Message, []relayedMessage, error) {
+func (w *L2WatcherClient) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L2Message, []relayedMessage, error) {
 	// Need use contract abi to parse event Log
 	// Can only be tested after we have our contracts set up
 

bridge/watcher/l2_watcher_test.go

@@ -0,0 +1,442 @@
+package watcher
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"math/big"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum/accounts/abi"
+	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/rpc"
+	"github.com/smartystreets/goconvey/convey"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+
+	bridge_abi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/mock_bridge"
+	"scroll-tech/bridge/sender"
+	"scroll-tech/bridge/utils"
+
+	cutils "scroll-tech/common/utils"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+func setupL2Watcher(t *testing.T) *L2WatcherClient {
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	l2cfg := cfg.L2Config
+	watcher := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	return watcher
+}
+
+func testCreateNewWatcherAndStop(t *testing.T) {
+	// Create db handler and reset db.
+	l2db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(l2db.GetDB().DB))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+	defer func() {
+		cancel()
+		l2db.Close()
+	}()
+
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, l2db)
+	loopToFetchEvent(subCtx, wc)
+
+	l1cfg := cfg.L1Config
+	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
+	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKeys)
+	assert.NoError(t, err)
+
+	// Create several transactions and commit to block
+	numTransactions := 3
+	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	for i := 0; i < numTransactions; i++ {
+		_, err = newSender.SendTransaction(strconv.Itoa(1000+i), &toAddress, big.NewInt(1000000000), nil, 0)
+		assert.NoError(t, err)
+		<-newSender.ConfirmChan()
+	}
+
+	blockNum, err := l2Cli.BlockNumber(context.Background())
+	assert.NoError(t, err)
+	assert.GreaterOrEqual(t, blockNum, uint64(numTransactions))
+}
+
+func testMonitorBridgeContract(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+
+	defer func() {
+		cancel()
+		db.Close()
+	}()
+
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	loopToFetchEvent(subCtx, wc)
+
+	previousHeight, err := l2Cli.BlockNumber(context.Background())
+	assert.NoError(t, err)
+
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
+
+	// deploy mock bridge
+	_, tx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
+	assert.NoError(t, err)
+	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
+	assert.NoError(t, err)
+
+	rc := prepareWatcherClient(l2Cli, db, address)
+	loopToFetchEvent(subCtx, rc)
+	// Call mock_bridge instance sendMessage to trigger emit events
+	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	message := []byte("testbridgecontract")
+	fee := big.NewInt(0)
+	gasLimit := big.NewInt(1)
+
+	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+	assert.NoError(t, err)
+	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// extra block mined
+	toAddress = common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	message = []byte("testbridgecontract")
+	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+	assert.NoError(t, err)
+	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// wait for dealing time
+	<-time.After(6 * time.Second)
+
+	var latestHeight uint64
+	latestHeight, err = l2Cli.BlockNumber(context.Background())
+	assert.NoError(t, err)
+	t.Log("Latest height is", latestHeight)
+
+	// check if we successfully stored events
+	height, err := db.GetLayer2LatestWatchedHeight()
+	assert.NoError(t, err)
+	t.Log("Height in DB is", height)
+	assert.Greater(t, height, int64(previousHeight))
+	msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
+	assert.NoError(t, err)
+	assert.Equal(t, 2, len(msgs))
+}
+
+func testFetchMultipleSentMessageInOneBlock(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+
+	defer func() {
+		cancel()
+		db.Close()
+	}()
+
+	previousHeight, err := l2Cli.BlockNumber(context.Background()) // shallow the global previousHeight
+	assert.NoError(t, err)
+
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
+
+	_, trx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
+	assert.NoError(t, err)
+	address, err := bind.WaitDeployed(context.Background(), l2Cli, trx)
+	assert.NoError(t, err)
+
+	wc := prepareWatcherClient(l2Cli, db, address)
+	loopToFetchEvent(subCtx, wc)
+
+	// Call mock_bridge instance sendMessage to trigger emit events multiple times
+	numTransactions := 4
+	var tx *geth_types.Transaction
+
+	for i := 0; i < numTransactions; i++ {
+		addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
+		nonce, nounceErr := l2Cli.PendingNonceAt(context.Background(), addr)
+		assert.NoError(t, nounceErr)
+		auth.Nonce = big.NewInt(int64(nonce))
+		toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+		message := []byte("testbridgecontract")
+		fee := big.NewInt(0)
+		gasLimit := big.NewInt(1)
+		tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+		assert.NoError(t, err)
+	}
+
+	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// extra block mined
+	addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
+	nonce, nounceErr := l2Cli.PendingNonceAt(context.Background(), addr)
+	assert.NoError(t, nounceErr)
+	auth.Nonce = big.NewInt(int64(nonce))
+	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	message := []byte("testbridgecontract")
+	fee := big.NewInt(0)
+	gasLimit := big.NewInt(1)
+	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+	assert.NoError(t, err)
+	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// wait for dealing time
+	<-time.After(6 * time.Second)
+
+	// check if we successfully stored events
+	height, err := db.GetLayer2LatestWatchedHeight()
+	assert.NoError(t, err)
+	t.Log("LatestHeight is", height)
+	assert.Greater(t, height, int64(previousHeight)) // height must be greater than previousHeight because confirmations is 0
+	msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
+	assert.NoError(t, err)
+	assert.Equal(t, 5, len(msgs))
+}
+
+func testFetchRunningMissingBlocks(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
+
+	// deploy mock bridge
+	_, tx, _, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
+	assert.NoError(t, err)
+	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
+	assert.NoError(t, err)
+
+	// wait for dealing time
+	<-time.After(3 * time.Second)
+
+	latestHeight, err := l2Cli.BlockNumber(context.Background())
+	assert.NoError(t, err)
+	wc := prepareWatcherClient(l2Cli, db, address)
+	wc.TryFetchRunningMissingBlocks(context.Background(), latestHeight)
+	fetchedHeight, err := db.GetL2BlocksLatestHeight()
+	assert.NoError(t, err)
+	assert.Equal(t, uint64(fetchedHeight), latestHeight)
+}
+
+func prepareWatcherClient(l2Cli *ethclient.Client, db database.OrmFactory, contractAddr common.Address) *L2WatcherClient {
+	confirmations := rpc.LatestBlockNumber
+	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db)
+}
+
+func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
+	auth, err := bind.NewKeyedTransactorWithChainID(privateKey, big.NewInt(53077))
+	assert.NoError(t, err)
+	auth.Value = big.NewInt(0) // in wei
+	assert.NoError(t, err)
+	auth.GasPrice, err = l2Cli.SuggestGasPrice(context.Background())
+	assert.NoError(t, err)
+	return auth
+}
+
+func loopToFetchEvent(subCtx context.Context, watcher *L2WatcherClient) {
+	go cutils.Loop(subCtx, 2*time.Second, watcher.FetchContractEvent)
+}
+
+func testParseBridgeEventLogsL2SentMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics: []common.Hash{
+				bridge_abi.L2SentMessageEventSignature,
+			},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack SentMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog SentMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2SentMessageEventSignature success", t, func() {
+		tmpSendAddr := common.HexToAddress("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30")
+		tmpTargetAddr := common.HexToAddress("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		tmpValue := big.NewInt(1000)
+		tmpMessageNonce := big.NewInt(100)
+		tmpMessage := []byte("test for L2SentMessageEventSignature")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2SentMessageEvent)
+			tmpOut.Sender = tmpSendAddr
+			tmpOut.Value = tmpValue
+			tmpOut.Target = tmpTargetAddr
+			tmpOut.MessageNonce = tmpMessageNonce
+			tmpOut.Message = tmpMessage
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.Error(t, err)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, l2Messages)
+	})
+}
+
+func testParseBridgeEventLogsL2RelayedMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L2RelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack RelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog RelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2RelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2RelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL2FailedRelayedMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L2FailedRelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack FailedRelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog FailedRelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2FailedRelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2FailedRelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL2AppendMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L2AppendMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack AppendMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog AppendMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2AppendMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2AppendMessageEvent)
+			tmpOut.MessageHash = msgHash
+			tmpOut.Index = big.NewInt(100)
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+}

bridge/watcher/watcher_test.go

@@ -0,0 +1,105 @@
+package watcher
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/docker"
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/config"
+)
+
+var (
+	// config
+	cfg *config.Config
+
+	base *docker.App
+
+	// l2geth client
+	l2Cli *ethclient.Client
+
+	// block trace
+	wrappedBlock1 *types.WrappedBlock
+	wrappedBlock2 *types.WrappedBlock
+)
+
+func setupEnv(t *testing.T) (err error) {
+	// Load config.
+	cfg, err = config.NewConfig("../config.json")
+	assert.NoError(t, err)
+
+	base.RunImages(t)
+
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.DBConfig = base.DBConfig
+
+	// Create l2geth client.
+	l2Cli, err = base.L2Client()
+	assert.NoError(t, err)
+
+	templateBlockTrace1, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	wrappedBlock1 = &types.WrappedBlock{}
+	if err = json.Unmarshal(templateBlockTrace1, wrappedBlock1); err != nil {
+		return err
+	}
+
+	templateBlockTrace2, err := os.ReadFile("../../common/testdata/blockTrace_03.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	wrappedBlock2 = &types.WrappedBlock{}
+	if err = json.Unmarshal(templateBlockTrace2, wrappedBlock2); err != nil {
+		return err
+	}
+	return err
+}
+
+func TestMain(m *testing.M) {
+	base = docker.NewDockerApp()
+
+	m.Run()
+
+	base.Free()
+}
+
+func TestFunction(t *testing.T) {
+	if err := setupEnv(t); err != nil {
+		t.Fatal(err)
+	}
+
+	// Run l1 watcher test cases.
+	t.Run("TestStartWatcher", testFetchContractEvent)
+	t.Run("TestL1WatcherClientFetchBlockHeader", testL1WatcherClientFetchBlockHeader)
+	t.Run("TestL1WatcherClientFetchContractEvent", testL1WatcherClientFetchContractEvent)
+	t.Run("TestParseBridgeEventLogsL1QueueTransactionEventSignature", testParseBridgeEventLogsL1QueueTransactionEventSignature)
+	t.Run("TestParseBridgeEventLogsL1RelayedMessageEventSignature", testParseBridgeEventLogsL1RelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL1FailedRelayedMessageEventSignature", testParseBridgeEventLogsL1FailedRelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL1CommitBatchEventSignature", testParseBridgeEventLogsL1CommitBatchEventSignature)
+	t.Run("TestParseBridgeEventLogsL1FinalizeBatchEventSignature", testParseBridgeEventLogsL1FinalizeBatchEventSignature)
+
+	// Run l2 watcher test cases.
+	t.Run("TestCreateNewWatcherAndStop", testCreateNewWatcherAndStop)
+	t.Run("TestMonitorBridgeContract", testMonitorBridgeContract)
+	t.Run("TestFetchMultipleSentMessageInOneBlock", testFetchMultipleSentMessageInOneBlock)
+	t.Run("TestFetchRunningMissingBlocks", testFetchRunningMissingBlocks)
+	t.Run("TestParseBridgeEventLogsL2SentMessageEventSignature", testParseBridgeEventLogsL2SentMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL2RelayedMessageEventSignature", testParseBridgeEventLogsL2RelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL2FailedRelayedMessageEventSignature", testParseBridgeEventLogsL2FailedRelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL2AppendMessageEventSignature", testParseBridgeEventLogsL2AppendMessageEventSignature)
+
+	// Run batch proposer test cases.
+	t.Run("TestBatchProposerProposeBatch", testBatchProposerProposeBatch)
+	t.Run("TestBatchProposerBatchGeneration", testBatchProposerBatchGeneration)
+	t.Run("TestBatchProposerGracefulRestart", testBatchProposerGracefulRestart)
+}

build/dockerfiles/coordinator.Dockerfile

@@ -13,7 +13,7 @@ RUN cargo chef cook --release --recipe-path recipe.json
 
 COPY ./common/libzkp/impl .
 RUN cargo build --release
-RUN find ./ | grep libzktrie.so | xargs -i cp {} /app/target/release/
+RUN find ./ | grep libzktrie.so | xargs -I{} cp {} /app/target/release/
 
 
 # Download Go dependencies

build/dockerfiles/event_watcher.Dockerfile

@@ -0,0 +1,26 @@
+# Download Go dependencies
+FROM scrolltech/go-alpine-builder:1.18 as base
+
+WORKDIR /src
+COPY go.work* ./
+COPY ./bridge/go.* ./bridge/
+COPY ./common/go.* ./common/
+COPY ./coordinator/go.* ./coordinator/
+COPY ./database/go.* ./database/
+COPY ./roller/go.* ./roller/
+COPY ./tests/integration-test/go.* ./tests/integration-test/
+RUN go mod download -x
+
+# Build event_watcher
+FROM base as builder
+
+RUN --mount=target=. \
+    --mount=type=cache,target=/root/.cache/go-build \
+    cd /src/bridge/cmd/event_watcher/ && go build -v -p 4 -o /bin/event_watcher
+
+# Pull event_watcher into a second stage deploy alpine container
+FROM alpine:latest
+
+COPY --from=builder /bin/event_watcher /bin/
+
+ENTRYPOINT ["event_watcher"]

build/dockerfiles/event_watcher.Dockerfile.dockerignore

@@ -2,4 +2,4 @@ assets/
 docs/
 l2geth/
 rpc-gateway/
-*target/*
+*target/*

build/dockerfiles/gas_oracle.Dockerfile

@@ -11,16 +11,16 @@ COPY ./roller/go.* ./roller/
 COPY ./tests/integration-test/go.* ./tests/integration-test/
 RUN go mod download -x
 
-# Build bridge
+# Build gas_oracle
 FROM base as builder
 
 RUN --mount=target=. \
     --mount=type=cache,target=/root/.cache/go-build \
-    cd /src/bridge/cmd && go build -v -p 4 -o /bin/bridge
+    cd /src/bridge/cmd/gas_oracle/ && go build -v -p 4 -o /bin/gas_oracle
 
-# Pull bridge into a second stage deploy alpine container
+# Pull gas_oracle into a second stage deploy alpine container
 FROM alpine:latest
 
-COPY --from=builder /bin/bridge /bin/
+COPY --from=builder /bin/gas_oracle /bin/
 
-ENTRYPOINT ["bridge"]
+ENTRYPOINT ["gas_oracle"]

build/dockerfiles/gas_oracle.Dockerfile.dockerignore

@@ -0,0 +1,5 @@
+assets/
+docs/
+l2geth/
+rpc-gateway/
+*target/*

build/dockerfiles/msg_relayer.Dockerfile

@@ -0,0 +1,26 @@
+# Download Go dependencies
+FROM scrolltech/go-alpine-builder:1.18 as base
+
+WORKDIR /src
+COPY go.work* ./
+COPY ./bridge/go.* ./bridge/
+COPY ./common/go.* ./common/
+COPY ./coordinator/go.* ./coordinator/
+COPY ./database/go.* ./database/
+COPY ./roller/go.* ./roller/
+COPY ./tests/integration-test/go.* ./tests/integration-test/
+RUN go mod download -x
+
+# Build msg_relayer
+FROM base as builder
+
+RUN --mount=target=. \
+    --mount=type=cache,target=/root/.cache/go-build \
+    cd /src/bridge/cmd/msg_relayer/ && go build -v -p 4 -o /bin/msg_relayer
+
+# Pull msg_relayer into a second stage deploy alpine container
+FROM alpine:latest
+
+COPY --from=builder /bin/msg_relayer /bin/
+
+ENTRYPOINT ["msg_relayer"]

build/dockerfiles/msg_relayer.Dockerfile.dockerignore

@@ -0,0 +1,5 @@
+assets/
+docs/
+l2geth/
+rpc-gateway/
+*target/*

build/dockerfiles/rollup_relayer.Dockerfile

@@ -0,0 +1,26 @@
+# Download Go dependencies
+FROM scrolltech/go-alpine-builder:1.18 as base
+
+WORKDIR /src
+COPY go.work* ./
+COPY ./bridge/go.* ./bridge/
+COPY ./common/go.* ./common/
+COPY ./coordinator/go.* ./coordinator/
+COPY ./database/go.* ./database/
+COPY ./roller/go.* ./roller/
+COPY ./tests/integration-test/go.* ./tests/integration-test/
+RUN go mod download -x
+
+# Build rollup_relayer
+FROM base as builder
+
+RUN --mount=target=. \
+    --mount=type=cache,target=/root/.cache/go-build \
+    cd /src/bridge/cmd/rollup_relayer/ && go build -v -p 4 -o /bin/rollup_relayer
+
+# Pull rollup_relayer into a second stage deploy alpine container
+FROM alpine:latest
+
+COPY --from=builder /bin/rollup_relayer /bin/
+
+ENTRYPOINT ["rollup_relayer"]

build/dockerfiles/rollup_relayer.Dockerfile.dockerignore

@@ -0,0 +1,5 @@
+assets/
+docs/
+l2geth/
+rpc-gateway/
+*target/*

build/run_tests.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+set -uex
+
+profile_name=$1
+
+exclude_dirs=("scroll-tech/bridge/cmd" "scroll-tech/bridge/tests" "scroll-tech/bridge/mock_bridge" "scroll-tech/coordinator/cmd")
+
+all_packages=$(go list ./... | grep -v "^scroll-tech/${profile_name}$")
+coverpkg="scroll-tech/${profile_name}"
+
+for pkg in $all_packages; do
+    exclude_pkg=false
+    for exclude_dir in "${exclude_dirs[@]}"; do
+        if [[ $pkg == $exclude_dir* ]]; then
+            exclude_pkg=true
+            break
+        fi
+    done
+
+    if [ "$exclude_pkg" = false ]; then
+        coverpkg="$coverpkg,$pkg/..."
+    fi
+done
+
+echo "coverage.${profile_name}.txt"
+go test -v -race -gcflags="-l" -ldflags="-s=false" -coverpkg="$coverpkg" -coverprofile=../coverage.${profile_name}.txt -covermode=atomic ./...

common/bytecode/.gitignore

@@ -0,0 +1,2 @@
+*.go
+*.sol

common/bytecode/Makefile

@@ -0,0 +1,9 @@
+.PHONY: all erc20 greeter
+
+all: erc20 greeter
+
+erc20:
+	go run github.com/scroll-tech/go-ethereum/cmd/abigen --combined-json ./erc20/ERC20Mock.json --pkg erc20 --out ./erc20/ERC20Mock.go
+
+greeter:
+	go run github.com/scroll-tech/go-ethereum/cmd/abigen --combined-json ./greeter/Greeter.json --pkg greeter --out ./greeter/Greeter.go

common/bytecode/README.md

@@ -0,0 +1,40 @@
+## How to pre deploy contracts?
+* Please reference to https://github.com/scroll-tech/genesis-creator.
+1. Setup env
+```bash
+   git clone git@github.com:scroll-tech/genesis-creator.git
+   cd genesis-creator
+   go get -v github.com/scroll-tech/go-ethereum@develop && go mod tidy
+   make abi && make genesis-creator
+   make l2geth-docker
+```
+
+2. Start docker and write pre deployed contracts into genesis file.
+```bash
+   make start-docker
+   ./bin/genesis-creator -genesis ${SCROLLPATH}/common/docker/l2geth/genesis.json -contract [erc20|greeter]
+```
+
+3. Rebuild l2geth docker.
+```bash
+   cd ${SCROLLPATH}
+   make dev_docker
+```
+
+## How to get contract abi?
+* Other contracts' step same to eth20, e.g:
+1. Install solc.
+   
+    *Reference to https://docs.soliditylang.org/en/latest/installing-solidity.html*
+
+2. Get abi file.
+```bash
+   cd genesis-creator
+   solc --combined-json "abi" --optimize ${SCROLLPATH}/common/bytecode/erc20/ERC20Mock.sol | jq > ${SCROLLPATH}/common/bytecode/erc20/ERC20Mock.json
+```
+
+3. Translate abi to go.
+```bash
+   cd ${SCROLLPATH}
+   make -C common/bytecode all
+```

common/bytecode/erc20/ERC20Mock.json

@@ -0,0 +1,387 @@
+{
+  "contracts": {
+    "tests/contracts/erc20/erc20.sol:ERC20Mock": {
+      "abi": [
+        {
+          "inputs": [
+            {
+              "internalType": "string",
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "internalType": "string",
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "internalType": "address",
+              "name": "initialAccount",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "initialBalance",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "payable",
+          "type": "constructor"
+        },
+        {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "internalType": "address",
+              "name": "owner",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "internalType": "address",
+              "name": "spender",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "internalType": "uint256",
+              "name": "value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Approval",
+          "type": "event"
+        },
+        {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "internalType": "address",
+              "name": "from",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "internalType": "address",
+              "name": "to",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "internalType": "uint256",
+              "name": "value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Transfer",
+          "type": "event"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "owner",
+              "type": "address"
+            },
+            {
+              "internalType": "address",
+              "name": "spender",
+              "type": "address"
+            }
+          ],
+          "name": "allowance",
+          "outputs": [
+            {
+              "internalType": "uint256",
+              "name": "",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "spender",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "amount",
+              "type": "uint256"
+            }
+          ],
+          "name": "approve",
+          "outputs": [
+            {
+              "internalType": "bool",
+              "name": "",
+              "type": "bool"
+            }
+          ],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "owner",
+              "type": "address"
+            },
+            {
+              "internalType": "address",
+              "name": "spender",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "value",
+              "type": "uint256"
+            }
+          ],
+          "name": "approveInternal",
+          "outputs": [],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "account",
+              "type": "address"
+            }
+          ],
+          "name": "balanceOf",
+          "outputs": [
+            {
+              "internalType": "uint256",
+              "name": "",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "account",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "amount",
+              "type": "uint256"
+            }
+          ],
+          "name": "burn",
+          "outputs": [],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [],
+          "name": "decimals",
+          "outputs": [
+            {
+              "internalType": "uint8",
+              "name": "",
+              "type": "uint8"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "spender",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "subtractedValue",
+              "type": "uint256"
+            }
+          ],
+          "name": "decreaseAllowance",
+          "outputs": [
+            {
+              "internalType": "bool",
+              "name": "",
+              "type": "bool"
+            }
+          ],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "spender",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "addedValue",
+              "type": "uint256"
+            }
+          ],
+          "name": "increaseAllowance",
+          "outputs": [
+            {
+              "internalType": "bool",
+              "name": "",
+              "type": "bool"
+            }
+          ],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "account",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "amount",
+              "type": "uint256"
+            }
+          ],
+          "name": "mint",
+          "outputs": [],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [],
+          "name": "name",
+          "outputs": [
+            {
+              "internalType": "string",
+              "name": "",
+              "type": "string"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [],
+          "name": "symbol",
+          "outputs": [
+            {
+              "internalType": "string",
+              "name": "",
+              "type": "string"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [],
+          "name": "totalSupply",
+          "outputs": [
+            {
+              "internalType": "uint256",
+              "name": "",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "to",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "amount",
+              "type": "uint256"
+            }
+          ],
+          "name": "transfer",
+          "outputs": [
+            {
+              "internalType": "bool",
+              "name": "",
+              "type": "bool"
+            }
+          ],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "from",
+              "type": "address"
+            },
+            {
+              "internalType": "address",
+              "name": "to",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "amount",
+              "type": "uint256"
+            }
+          ],
+          "name": "transferFrom",
+          "outputs": [
+            {
+              "internalType": "bool",
+              "name": "",
+              "type": "bool"
+            }
+          ],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "address",
+              "name": "from",
+              "type": "address"
+            },
+            {
+              "internalType": "address",
+              "name": "to",
+              "type": "address"
+            },
+            {
+              "internalType": "uint256",
+              "name": "value",
+              "type": "uint256"
+            }
+          ],
+          "name": "transferInternal",
+          "outputs": [],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        }
+      ]
+    }
+  },
+  "version": "0.8.16+commit.07a7930e.Darwin.appleclang"
+}

common/bytecode/greeter/Greeter.json

@@ -0,0 +1,72 @@
+{
+  "contracts": {
+    "greeter/Greeter.sol:Greeter": {
+      "abi": [
+        {
+          "inputs": [
+            {
+              "internalType": "uint256",
+              "name": "num",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "nonpayable",
+          "type": "constructor"
+        },
+        {
+          "inputs": [],
+          "name": "retrieve",
+          "outputs": [
+            {
+              "internalType": "uint256",
+              "name": "",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [],
+          "name": "retrieve_failing",
+          "outputs": [
+            {
+              "internalType": "uint256",
+              "name": "",
+              "type": "uint256"
+            }
+          ],
+          "stateMutability": "view",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "uint256",
+              "name": "num",
+              "type": "uint256"
+            }
+          ],
+          "name": "set_value",
+          "outputs": [],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        },
+        {
+          "inputs": [
+            {
+              "internalType": "uint256",
+              "name": "num",
+              "type": "uint256"
+            }
+          ],
+          "name": "set_value_failing",
+          "outputs": [],
+          "stateMutability": "nonpayable",
+          "type": "function"
+        }
+      ]
+    }
+  },
+  "version": "0.8.16+commit.07a7930e.Darwin.appleclang"
+}

common/cmd/cmd.go

@@ -31,6 +31,8 @@ type Cmd struct {
 
 	checkFuncs cmap.ConcurrentMap //map[string]checkFunc
 
+	// open log flag.
+	openLog bool
 	// error channel
 	ErrChan chan error
 }
@@ -64,7 +66,7 @@ func (c *Cmd) runCmd() {
 
 // RunCmd parallel running when parallel is true.
 func (c *Cmd) RunCmd(parallel bool) {
-	fmt.Println("cmd: ", c.args)
+	fmt.Println("cmd:", c.args)
 	if parallel {
 		go c.runCmd()
 	} else {
@@ -72,12 +74,17 @@ func (c *Cmd) RunCmd(parallel bool) {
 	}
 }
 
+// OpenLog open cmd log by this api.
+func (c *Cmd) OpenLog(open bool) {
+	c.openLog = open
+}
+
 func (c *Cmd) Write(data []byte) (int, error) {
 	out := string(data)
-	if verbose {
-		fmt.Printf("%s: %v", c.name, out)
+	if verbose || c.openLog {
+		fmt.Printf("%s:\n\t%v", c.name, out)
 	} else if strings.Contains(out, "error") || strings.Contains(out, "warning") {
-		fmt.Printf("%s: %v", c.name, out)
+		fmt.Printf("%s:\n\t%v", c.name, out)
 	}
 	go c.checkFuncs.IterCb(func(_ string, value interface{}) {
 		check := value.(checkFunc)

common/docker/docker_app.go

@@ -39,9 +39,9 @@ type App struct {
 	L2gethImg GethImgInstance
 	DBImg     ImgInstance
 
-	dbClient *sql.DB
-	DBConfig *database.DBConfig
-	dbFile   string
+	dbClient     *sql.DB
+	DBConfig     *database.DBConfig
+	DBConfigFile string
 
 	// common time stamp.
 	Timestamp int
@@ -51,11 +51,11 @@ type App struct {
 func NewDockerApp() *App {
 	timestamp := time.Now().Nanosecond()
 	app := &App{
-		Timestamp: timestamp,
-		L1gethImg: newTestL1Docker(),
-		L2gethImg: newTestL2Docker(),
-		DBImg:     newTestDBDocker("postgres"),
-		dbFile:    fmt.Sprintf("/tmp/%d_db-config.json", timestamp),
+		Timestamp:    timestamp,
+		L1gethImg:    newTestL1Docker(),
+		L2gethImg:    newTestL2Docker(),
+		DBImg:        newTestDBDocker("postgres"),
+		DBConfigFile: fmt.Sprintf("/tmp/%d_db-config.json", timestamp),
 	}
 	if err := app.mockDBConfig(); err != nil {
 		panic(err)
@@ -79,14 +79,14 @@ func (b *App) RunDBImage(t *testing.T) {
 	var isRun bool
 	// try 5 times until the db is ready.
 	utils.TryTimes(10, func() bool {
-		db, _ := sqlx.Open("postgres", b.DBImg.Endpoint())
-		isRun = db != nil && db.Ping() == nil
+		db, err := sqlx.Open("postgres", b.DBImg.Endpoint())
+		isRun = err == nil && db != nil && db.Ping() == nil
 		return isRun
 	})
 	assert.Equal(t, true, isRun)
 }
 
-// Free clear all running images
+// Free clear all running images, double check and recycle docker container.
 func (b *App) Free() {
 	if b.L1gethImg.IsRunning() {
 		_ = b.L1gethImg.Stop()
@@ -96,7 +96,7 @@ func (b *App) Free() {
 	}
 	if b.DBImg.IsRunning() {
 		_ = b.DBImg.Stop()
-		_ = os.Remove(b.dbFile)
+		_ = os.Remove(b.DBConfigFile)
 		if !utils.IsNil(b.dbClient) {
 			_ = b.dbClient.Close()
 			b.dbClient = nil
@@ -145,7 +145,7 @@ func (b *App) L2Client() (*ethclient.Client, error) {
 }
 
 // DBClient create and return *sql.DB instance.
-func (b App) DBClient(t *testing.T) *sql.DB {
+func (b *App) DBClient(t *testing.T) *sql.DB {
 	if !utils.IsNil(b.dbClient) {
 		return b.dbClient
 	}
@@ -177,7 +177,7 @@ func (b *App) mockDBConfig() error {
 		return err
 	}
 
-	return os.WriteFile(b.dbFile, data, 0644) //nolint:gosec
+	return os.WriteFile(b.DBConfigFile, data, 0644) //nolint:gosec
 }
 
 func newTestL1Docker() GethImgInstance {

common/docker/docker_db.go

@@ -84,7 +84,7 @@ func (i *ImgDB) IsRunning() bool {
 }
 
 func (i *ImgDB) prepare() []string {
-	cmd := []string{"docker", "run", "--name", i.name, "-p", fmt.Sprintf("%d:5432", i.port)}
+	cmd := []string{"docker", "run", "--rm", "--name", i.name, "-p", fmt.Sprintf("%d:5432", i.port)}
 	envs := []string{
 		"-e", "POSTGRES_PASSWORD=" + i.password,
 		"-e", fmt.Sprintf("POSTGRES_DB=%s", i.dbName),

common/docker/docker_geth.go

@@ -59,9 +59,8 @@ func (i *ImgGeth) Start() error {
 
 	// try 10 times to get chainID until is ok.
 	utils.TryTimes(10, func() bool {
-		client, _ := ethclient.Dial(i.Endpoint())
-		if client != nil {
-			var err error
+		client, err := ethclient.Dial(i.Endpoint())
+		if err == nil && client != nil {
 			i.chainID, err = client.ChainID(context.Background())
 			return err == nil && i.chainID != nil
 		}
@@ -147,7 +146,7 @@ func (i *ImgGeth) Stop() error {
 }
 
 func (i *ImgGeth) prepare() []string {
-	cmds := []string{"docker", "run", "--name", i.name}
+	cmds := []string{"docker", "run", "--rm", "--name", i.name}
 	var ports []string
 	if i.httpPort != 0 {
 		ports = append(ports, []string{"-p", strconv.Itoa(i.httpPort) + ":8545"}...)

common/docker/l2geth/Dockerfile

@@ -1,4 +1,4 @@
-FROM scrolltech/l2geth:prealpha-v5.1
+FROM scrolltech/l2geth:scroll-v3.1.4
 
 RUN mkdir -p /l2geth/keystore
 

common/go.mod

@@ -5,9 +5,9 @@ go 1.18
 require (
 	github.com/docker/docker v20.10.21+incompatible
 	github.com/jmoiron/sqlx v1.3.5
-	github.com/lib/pq v1.10.6
+	github.com/lib/pq v1.10.7
 	github.com/mattn/go-colorable v0.1.13
-	github.com/mattn/go-isatty v0.0.16
+	github.com/mattn/go-isatty v0.0.18
 	github.com/modern-go/reflect2 v1.0.2
 	github.com/orcaman/concurrent-map v1.0.0
 	github.com/scroll-tech/go-ethereum v1.10.14-0.20230321020420-127af384ed04
@@ -32,8 +32,10 @@ require (
 	github.com/ethereum/go-ethereum v1.11.4 // indirect
 	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
 	github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff // indirect
+	github.com/go-kit/kit v0.9.0 // indirect
 	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-sql-driver/mysql v1.7.0 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
@@ -51,13 +53,14 @@ require (
 	github.com/influxdata/influxdb-client-go/v2 v2.4.0 // indirect
 	github.com/influxdata/line-protocol v0.0.0-20210311194329-9aa0e372d097 // indirect
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
-	github.com/mattn/go-runewidth v0.0.9 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/mattn/go-sqlite3 v1.14.14 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mitchellh/pointerstructure v1.2.0 // indirect
 	github.com/moby/term v0.0.0-20220808134915-39b0c02b01ae // indirect
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/onsi/gomega v1.26.0 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/opentracing/opentracing-go v1.1.0 // indirect
@@ -65,7 +68,9 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/tsdb v0.7.1 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/rs/cors v1.7.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/scroll-tech/zktrie v0.5.2 // indirect
@@ -73,19 +78,19 @@ require (
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/status-im/keycard-go v0.2.0 // indirect
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
-	github.com/tklauser/go-sysconf v0.3.10 // indirect
-	github.com/tklauser/numcpus v0.4.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/tklauser/numcpus v0.6.0 // indirect
 	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.2 // indirect
 	golang.org/x/crypto v0.7.0 // indirect
-	golang.org/x/mod v0.8.0 // indirect
-	golang.org/x/net v0.8.0 // indirect
+	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/net v0.9.0 // indirect
 	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.6.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
-	golang.org/x/time v0.0.0-20220922220347-f3bd1da661af // indirect
-	golang.org/x/tools v0.6.0 // indirect
+	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/time v0.1.0 // indirect
+	golang.org/x/tools v0.8.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/urfave/cli.v1 v1.20.0 // indirect

common/go.sum

@@ -108,8 +108,9 @@ github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31/go.mod h1:Ogl1T
 github.com/go-chi/chi/v5 v5.0.0/go.mod h1:BBug9lr0cqtdAhsu6R4AAdvufI0/XBzAQSsUqJpoZOs=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-kit/kit v0.8.0 h1:Wz+5lgoB0kkuqLEc6NVmwRknTKP6dTGbSqvhZtBI/j0=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/kit v0.9.0 h1:wDJmvq38kDhkVxi50ni9ykkdUr1PKgqKOoi01fa0Mdk=
+github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.1 h1:otpy5pqBCBZ1ng9RQ0dPu4PN7ba75Y/aA+UpowDyNVA=
@@ -119,8 +120,9 @@ github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiU
 github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
 github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
-github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
+github.com/go-sql-driver/mysql v1.7.0 h1:ueSltNNllEqE3qcWBTD0iQd3IpL/6U+mJxLkazJ7YPc=
+github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-stack/stack v1.8.1 h1:ntEHSVwIt7PNXNpgPmVfMrNhLtgjlmnZha2kOpuRiDw=
 github.com/go-stack/stack v1.8.1/go.mod h1:dcoOX6HbPZSZptuspn9bctJ+N/CnF5gGygcUP3XYfe4=
@@ -244,8 +246,8 @@ github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL
 github.com/leanovate/gopter v0.2.9 h1:fQjYxZaynp97ozCzfOyOuAGOU4aU/z37zf/tOujFk7c=
 github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
-github.com/lib/pq v1.10.6 h1:jbk+ZieJ0D7EVGJYpL9QTz7/YW6UHbmdnZWYyK5cdBs=
-github.com/lib/pq v1.10.6/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/lib/pq v1.10.7 h1:p7ZhMD+KsSRozJr34udlUrhboJwWAgCg34+/ZZNvZZw=
+github.com/lib/pq v1.10.7/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
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@@ -259,11 +261,13 @@ github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNx
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@@ -297,8 +301,9 @@ github.com/onsi/ginkgo v1.14.0 h1:2mOpI4JVVPBN+WQRa0WKH2eXR+Ey+uK4n7Zj0aYpIQA=
 github.com/onsi/ginkgo v1.14.0/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY=
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-github.com/onsi/gomega v1.10.1 h1:o0+MgICZLuZ7xjH7Vx6zS/zcu93/BEp1VwkIW1mEXCE=
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@@ -335,10 +340,14 @@ github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsT
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@@ -380,10 +389,10 @@ github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o
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@@ -444,8 +453,8 @@ golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
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@@ -467,8 +476,8 @@ golang.org/x/net v0.0.0-20200813134508-3edf25e44fcc/go.mod h1:/O7V0waA8r7cgGh81R
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@@ -519,11 +528,12 @@ golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -531,14 +541,14 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
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@@ -569,13 +579,12 @@ golang.org/x/tools v0.0.0-20200108203644-89082a384178/go.mod h1:TB2adYChydJhpapK
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 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df h1:5Pf6pFKu98ODmgnpvkJ3kFUOQGGLIzLIkbzUHp47618=
 gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
 gonum.org/v1/gonum v0.0.0-20181121035319-3f7ecaa7e8ca/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
 gonum.org/v1/gonum v0.6.0/go.mod h1:9mxDZsDKxgMAuccQkewq682L+0eCu4dCN2yonUJTCLU=

common/libzkp/impl/src/prove.rs

@@ -1,9 +1,11 @@
 use crate::utils::{c_char_to_str, c_char_to_vec, vec_to_c_char};
 use libc::c_char;
 use std::cell::OnceCell;
+use std::panic;
+use std::ptr::null;
 use types::eth::BlockTrace;
 use zkevm::circuit::AGG_DEGREE;
-use zkevm::utils::{load_or_create_params, load_or_create_seed};
+use zkevm::utils::{load_params, load_seed};
 use zkevm::{circuit::DEGREE, prover::Prover};
 
 static mut PROVER: OnceCell<Prover> = OnceCell::new();
@@ -15,9 +17,9 @@ pub unsafe extern "C" fn init_prover(params_path: *const c_char, seed_path: *con
 
     let params_path = c_char_to_str(params_path);
     let seed_path = c_char_to_str(seed_path);
-    let params = load_or_create_params(params_path, *DEGREE).unwrap();
-    let agg_params = load_or_create_params(params_path, *AGG_DEGREE).unwrap();
-    let seed = load_or_create_seed(seed_path).unwrap();
+    let params = load_params(params_path, *DEGREE).unwrap();
+    let agg_params = load_params(params_path, *AGG_DEGREE).unwrap();
+    let seed = load_seed(seed_path).unwrap();
     let p = Prover::from_params_and_seed(params, agg_params, seed);
     PROVER.set(p).unwrap();
 }
@@ -27,13 +29,15 @@ pub unsafe extern "C" fn init_prover(params_path: *const c_char, seed_path: *con
 pub unsafe extern "C" fn create_agg_proof(trace_char: *const c_char) -> *const c_char {
     let trace_vec = c_char_to_vec(trace_char);
     let trace = serde_json::from_slice::<BlockTrace>(&trace_vec).unwrap();
-    let proof = PROVER
-        .get_mut()
-        .unwrap()
-        .create_agg_circuit_proof(&trace)
-        .unwrap();
-    let proof_bytes = serde_json::to_vec(&proof).unwrap();
-    vec_to_c_char(proof_bytes)
+    let proof_result = panic::catch_unwind(|| {
+        let proof = PROVER
+            .get_mut()
+            .unwrap()
+            .create_agg_circuit_proof(&trace)
+            .unwrap();
+        serde_json::to_vec(&proof).unwrap()
+    });
+    proof_result.map_or(null(), vec_to_c_char)
 }
 
 /// # Safety
@@ -41,11 +45,13 @@ pub unsafe extern "C" fn create_agg_proof(trace_char: *const c_char) -> *const c
 pub unsafe extern "C" fn create_agg_proof_multi(trace_char: *const c_char) -> *const c_char {
     let trace_vec = c_char_to_vec(trace_char);
     let traces = serde_json::from_slice::<Vec<BlockTrace>>(&trace_vec).unwrap();
-    let proof = PROVER
-        .get_mut()
-        .unwrap()
-        .create_agg_circuit_proof_batch(traces.as_slice())
-        .unwrap();
-    let proof_bytes = serde_json::to_vec(&proof).unwrap();
-    vec_to_c_char(proof_bytes)
+    let proof_result = panic::catch_unwind(|| {
+        let proof = PROVER
+            .get_mut()
+            .unwrap()
+            .create_agg_circuit_proof_batch(traces.as_slice())
+            .unwrap();
+        serde_json::to_vec(&proof).unwrap()
+    });
+    proof_result.map_or(null(), vec_to_c_char)
 }

common/libzkp/impl/src/verify.rs

@@ -2,9 +2,10 @@ use crate::utils::{c_char_to_str, c_char_to_vec};
 use libc::c_char;
 use std::fs::File;
 use std::io::Read;
+use std::panic;
 use zkevm::circuit::{AGG_DEGREE, DEGREE};
 use zkevm::prover::AggCircuitProof;
-use zkevm::utils::load_or_create_params;
+use zkevm::utils::load_params;
 use zkevm::verifier::Verifier;
 
 static mut VERIFIER: Option<&Verifier> = None;
@@ -20,8 +21,8 @@ pub unsafe extern "C" fn init_verifier(params_path: *const c_char, agg_vk_path:
     let mut agg_vk = vec![];
     f.read_to_end(&mut agg_vk).unwrap();
 
-    let params = load_or_create_params(params_path, *DEGREE).unwrap();
-    let agg_params = load_or_create_params(params_path, *AGG_DEGREE).unwrap();
+    let params = load_params(params_path, *DEGREE).unwrap();
+    let agg_params = load_params(params_path, *AGG_DEGREE).unwrap();
 
     let v = Box::new(Verifier::from_params(params, agg_params, Some(agg_vk)));
     VERIFIER = Some(Box::leak(v))
@@ -32,9 +33,11 @@ pub unsafe extern "C" fn init_verifier(params_path: *const c_char, agg_vk_path:
 pub unsafe extern "C" fn verify_agg_proof(proof: *const c_char) -> c_char {
     let proof_vec = c_char_to_vec(proof);
     let agg_proof = serde_json::from_slice::<AggCircuitProof>(proof_vec.as_slice()).unwrap();
-    let verified = VERIFIER
-        .unwrap()
-        .verify_agg_circuit_proof(agg_proof)
-        .is_ok();
-    verified as c_char
+    let verified = panic::catch_unwind(|| {
+        VERIFIER
+            .unwrap()
+            .verify_agg_circuit_proof(agg_proof)
+            .is_ok()
+    });
+    verified.unwrap_or(false) as c_char
 }

common/testdata/testdata.go

@@ -1,21 +0,0 @@
-package testdata
-
-import (
-	"encoding/json"
-	"os"
-
-	"github.com/scroll-tech/go-ethereum/core/types"
-)
-
-// GetTrace returns trace by file name.
-func GetTrace(file string) *types.BlockTrace {
-	data, err := os.ReadFile(file)
-	if err != nil {
-		panic(err)
-	}
-	trace := &types.BlockTrace{}
-	if err = json.Unmarshal(data, &trace); err != nil {
-		panic(err)
-	}
-	return trace
-}

common/types/db.go

@@ -5,6 +5,8 @@ import (
 	"database/sql"
 	"fmt"
 	"time"
+
+	"scroll-tech/common/types/message"
 )
 
 // L1BlockStatus represents current l1 block processing status
@@ -162,6 +164,8 @@ type SessionInfo struct {
 	ID             string                   `json:"id"`
 	Rollers        map[string]*RollerStatus `json:"rollers"`
 	StartTimestamp int64                    `json:"start_timestamp"`
+	Attempts       uint8                    `json:"attempts,omitempty"`
+	ProveType      message.ProveType        `json:"prove_type,omitempty"`
 }
 
 // ProvingStatus block_batch proving_status (unassigned, assigned, proved, verified, submitted)
@@ -255,3 +259,16 @@ type BlockBatch struct {
 	CommittedAt         *time.Time      `json:"committed_at" db:"committed_at"`
 	FinalizedAt         *time.Time      `json:"finalized_at" db:"finalized_at"`
 }
+
+// AggTask is a wrapper type around db AggProveTask type.
+type AggTask struct {
+	ID              string        `json:"id" db:"id"`
+	StartBatchIndex uint64        `json:"start_batch_index" db:"start_batch_index"`
+	StartBatchHash  string        `json:"start_batch_hash" db:"start_batch_hash"`
+	EndBatchIndex   uint64        `json:"end_batch_index" db:"end_batch_index"`
+	EndBatchHash    string        `json:"end_batch_hash" db:"end_batch_hash"`
+	ProvingStatus   ProvingStatus `json:"proving_status" db:"proving_status"`
+	Proof           []byte        `json:"proof" db:"proof"`
+	CreatedTime     *time.Time    `json:"created_time" db:"created_time"`
+	UpdatedTime     *time.Time    `json:"updated_time" db:"updated_time"`
+}

common/types/message/message.go

@@ -22,6 +22,27 @@ const (
 	StatusProofError
 )
 
+// ProveType represents the type of roller.
+type ProveType uint8
+
+func (r ProveType) String() string {
+	switch r {
+	case BasicProve:
+		return "Basic Prove"
+	case AggregatorProve:
+		return "Aggregator Prove"
+	default:
+		return "Illegal Prove type"
+	}
+}
+
+const (
+	// BasicProve is default roller, it only generates zk proof from traces.
+	BasicProve ProveType = iota
+	// AggregatorProve generates zk proof from other zk proofs and aggregate them into one proof.
+	AggregatorProve
+)
+
 // AuthMsg is the first message exchanged from the Roller to the Sequencer.
 // It effectively acts as a registration, and makes the Roller identification
 // known to the Sequencer.
@@ -36,10 +57,10 @@ type AuthMsg struct {
 type Identity struct {
 	// Roller name
 	Name string `json:"name"`
+	// Roller RollerType
+	RollerType ProveType `json:"roller_type,omitempty"`
 	// Unverified Unix timestamp of message creation
 	Timestamp uint32 `json:"timestamp"`
-	// Roller public key
-	PublicKey string `json:"publicKey"`
 	// Version is common.Version+ZkVersion. Use the following to check the latest ZkVersion version.
 	// curl -sL https://api.github.com/repos/scroll-tech/scroll-zkevm/commits | jq -r ".[0].sha"
 	Version string `json:"version"`
@@ -56,13 +77,14 @@ func GenerateToken() (string, error) {
 	return hex.EncodeToString(b), nil
 }
 
-// Sign auth message
-func (a *AuthMsg) Sign(priv *ecdsa.PrivateKey) error {
+// SignWithKey auth message with private key and set public key in auth message's Identity
+func (a *AuthMsg) SignWithKey(priv *ecdsa.PrivateKey) error {
 	// Hash identity content
 	hash, err := a.Identity.Hash()
 	if err != nil {
 		return err
 	}
+
 	// Sign register message
 	sig, err := crypto.Sign(hash, priv)
 	if err != nil {
@@ -80,36 +102,27 @@ func (a *AuthMsg) Verify() (bool, error) {
 		return false, err
 	}
 	sig := common.FromHex(a.Signature)
-	// recover public key
-	if a.Identity.PublicKey == "" {
-		pk, err := crypto.SigToPub(hash, sig)
-		if err != nil {
-			return false, err
-		}
-		a.Identity.PublicKey = common.Bytes2Hex(crypto.CompressPubkey(pk))
-	}
 
-	return crypto.VerifySignature(common.FromHex(a.Identity.PublicKey), hash, sig[:len(sig)-1]), nil
+	pk, err := crypto.SigToPub(hash, sig)
+	if err != nil {
+		return false, err
+	}
+	return crypto.VerifySignature(crypto.CompressPubkey(pk), hash, sig[:len(sig)-1]), nil
 }
 
 // PublicKey return public key from signature
 func (a *AuthMsg) PublicKey() (string, error) {
-	if a.Identity.PublicKey == "" {
-		hash, err := a.Identity.Hash()
-		if err != nil {
-			return "", err
-		}
-		sig := common.FromHex(a.Signature)
-		// recover public key
-		pk, err := crypto.SigToPub(hash, sig)
-		if err != nil {
-			return "", err
-		}
-		a.Identity.PublicKey = common.Bytes2Hex(crypto.CompressPubkey(pk))
-		return a.Identity.PublicKey, nil
+	hash, err := a.Identity.Hash()
+	if err != nil {
+		return "", err
 	}
-
-	return a.Identity.PublicKey, nil
+	sig := common.FromHex(a.Signature)
+	// recover public key
+	pk, err := crypto.SigToPub(hash, sig)
+	if err != nil {
+		return "", err
+	}
+	return common.Bytes2Hex(crypto.CompressPubkey(pk)), nil
 }
 
 // Hash returns the hash of the auth message, which should be the message used
@@ -188,14 +201,19 @@ func (a *ProofMsg) PublicKey() (string, error) {
 
 // TaskMsg is a wrapper type around db ProveTask type.
 type TaskMsg struct {
-	ID     string              `json:"id"`
-	Traces []*types.BlockTrace `json:"blockTraces"`
+	ID   string    `json:"id"`
+	Type ProveType `json:"type,omitempty"`
+	// Only basic rollers need traces, aggregator rollers don't!
+	Traces []*types.BlockTrace `json:"blockTraces,omitempty"`
+	// Only aggregator rollers need proofs to aggregate, basic rollers don't!
+	SubProofs [][]byte `json:"sub_proofs,omitempty"`
 }
 
 // ProofDetail is the message received from rollers that contains zk proof, the status of
 // the proof generation succeeded, and an error message if proof generation failed.
 type ProofDetail struct {
 	ID     string     `json:"id"`
+	Type   ProveType  `json:"type,omitempty"`
 	Status RespStatus `json:"status"`
 	Proof  *AggProof  `json:"proof"`
 	Error  string     `json:"error,omitempty"`

common/types/message/message_test.go

@@ -19,7 +19,12 @@ func TestAuthMessageSignAndVerify(t *testing.T) {
 			Timestamp: uint32(time.Now().Unix()),
 		},
 	}
-	assert.NoError(t, authMsg.Sign(privkey))
+	assert.NoError(t, authMsg.SignWithKey(privkey))
+
+	// check public key.
+	pk, err := authMsg.PublicKey()
+	assert.NoError(t, err)
+	assert.Equal(t, common.Bytes2Hex(crypto.CompressPubkey(&privkey.PublicKey)), pk)
 
 	ok, err := authMsg.Verify()
 	assert.NoError(t, err)

common/utils/simulation.go

@@ -8,10 +8,30 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
+// MockAppName a new type mock app.
+type MockAppName string
+
+var (
+	// EventWatcherApp the name of mock event-watcher app.
+	EventWatcherApp MockAppName = "event-watcher-test"
+	// GasOracleApp the name of mock gas-oracle app.
+	GasOracleApp MockAppName = "gas-oracle-test"
+	// MessageRelayerApp the name of mock message-relayer app.
+	MessageRelayerApp MockAppName = "message-relayer-test"
+	// RollupRelayerApp the name of mock rollup-relayer app.
+	RollupRelayerApp MockAppName = "rollup-relayer-test"
+	// CoordinatorApp the name of mock coordinator app.
+	CoordinatorApp MockAppName = "coordinator-test"
+	// DBCliApp the name of mock database app.
+	DBCliApp MockAppName = "db_cli-test"
+	// RollerApp the name of mock roller app.
+	RollerApp MockAppName = "roller-test"
+)
+
 // RegisterSimulation register initializer function for integration-test.
-func RegisterSimulation(app *cli.App, name string) {
+func RegisterSimulation(app *cli.App, name MockAppName) {
 	// Run the app for integration-test
-	reexec.Register(name, func() {
+	reexec.Register(string(name), func() {
 		if err := app.Run(os.Args); err != nil {
 			fmt.Fprintln(os.Stderr, err)
 			os.Exit(1)

common/version/version.go

@@ -5,7 +5,7 @@ import (
 	"runtime/debug"
 )
 
-var tag = "v3.0.2"
+var tag = "v3.0.14"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {

contracts/docs/apis/L2ERC1155Gateway.md

@@ -13,7 +13,7 @@ The `L2ERC1155Gateway` is used to withdraw ERC1155 compatible NFTs in layer 2 an
 ### batchWithdrawERC1155
 
 ```solidity
-function batchWithdrawERC1155(address _token, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external nonpayable
+function batchWithdrawERC1155(address _token, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external payable
 ```
 
 Batch withdraw a list of ERC1155 NFT to caller's account on layer 1.
@@ -32,7 +32,7 @@ Batch withdraw a list of ERC1155 NFT to caller's account on layer 1.
 ### batchWithdrawERC1155
 
 ```solidity
-function batchWithdrawERC1155(address _token, address _to, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external nonpayable
+function batchWithdrawERC1155(address _token, address _to, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external payable
 ```
 
 Batch withdraw a list of ERC1155 NFT to caller's account on layer 1.
@@ -319,7 +319,7 @@ Update layer 2 to layer 1 token mapping.
 ### withdrawERC1155
 
 ```solidity
-function withdrawERC1155(address _token, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external nonpayable
+function withdrawERC1155(address _token, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external payable
 ```
 
 Withdraw some ERC1155 NFT to caller's account on layer 1.
@@ -338,7 +338,7 @@ Withdraw some ERC1155 NFT to caller's account on layer 1.
 ### withdrawERC1155
 
 ```solidity
-function withdrawERC1155(address _token, address _to, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external nonpayable
+function withdrawERC1155(address _token, address _to, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external payable
 ```
 
 Withdraw some ERC1155 NFT to caller's account on layer 1.

contracts/docs/apis/L2ERC721Gateway.md

@@ -13,7 +13,7 @@ The `L2ERC721Gateway` is used to withdraw ERC721 compatible NFTs in layer 2 and
 ### batchWithdrawERC721
 
 ```solidity
-function batchWithdrawERC721(address _token, uint256[] _tokenIds, uint256 _gasLimit) external nonpayable
+function batchWithdrawERC721(address _token, uint256[] _tokenIds, uint256 _gasLimit) external payable
 ```
 
 Batch withdraw a list of ERC721 NFT to caller's account on layer 1.
@@ -31,7 +31,7 @@ Batch withdraw a list of ERC721 NFT to caller's account on layer 1.
 ### batchWithdrawERC721
 
 ```solidity
-function batchWithdrawERC721(address _token, address _to, uint256[] _tokenIds, uint256 _gasLimit) external nonpayable
+function batchWithdrawERC721(address _token, address _to, uint256[] _tokenIds, uint256 _gasLimit) external payable
 ```
 
 Batch withdraw a list of ERC721 NFT to caller's account on layer 1.
@@ -266,7 +266,7 @@ Update layer 2 to layer 1 token mapping.
 ### withdrawERC721
 
 ```solidity
-function withdrawERC721(address _token, uint256 _tokenId, uint256 _gasLimit) external nonpayable
+function withdrawERC721(address _token, uint256 _tokenId, uint256 _gasLimit) external payable
 ```
 
 Withdraw some ERC721 NFT to caller's account on layer 1.
@@ -284,7 +284,7 @@ Withdraw some ERC721 NFT to caller's account on layer 1.
 ### withdrawERC721
 
 ```solidity
-function withdrawERC721(address _token, address _to, uint256 _tokenId, uint256 _gasLimit) external nonpayable
+function withdrawERC721(address _token, address _to, uint256 _tokenId, uint256 _gasLimit) external payable
 ```
 
 Withdraw some ERC721 NFT to caller's account on layer 1.

contracts/src/L1/L1ScrollMessenger.sol

@@ -216,12 +216,7 @@ contract L1ScrollMessenger is PausableUpgradeable, ScrollMessengerBase, IL1Scrol
         bytes memory _xDomainCalldata = _encodeXDomainCalldata(msg.sender, _to, _value, _messageNonce, _message);
 
         // compute and deduct the messaging fee to fee vault.
-        uint256 _fee = IL1MessageQueue(_messageQueue).estimateCrossDomainMessageFee(
-            address(this),
-            _counterpart,
-            _xDomainCalldata,
-            _gasLimit
-        );
+        uint256 _fee = IL1MessageQueue(_messageQueue).estimateCrossDomainMessageFee(_gasLimit);
         require(msg.value >= _fee + _value, "Insufficient msg.value");
         if (_fee > 0) {
             (bool _success, ) = feeVault.call{value: _fee}("");

contracts/src/L1/gateways/L1CustomERC20Gateway.sol

@@ -85,7 +85,7 @@ contract L1CustomERC20Gateway is OwnableUpgradeable, ScrollGatewayBase, L1ERC20G
         // but it seems not a big problem.
         IERC20Upgradeable(_l1Token).safeTransfer(_to, _amount);
 
-        // @todo forward `_data` to `_to` in the near future
+        _doCallback(_to, _data);
 
         emit FinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
     }

contracts/src/L1/gateways/L1ETHGateway.sol

@@ -74,7 +74,7 @@ contract L1ETHGateway is Initializable, ScrollGatewayBase, IL1ETHGateway {
         (bool _success, ) = _to.call{value: _amount}("");
         require(_success, "ETH transfer failed");
 
-        // @todo farward _data to `_to` in near future.
+        _doCallback(_to, _data);
 
         emit FinalizeWithdrawETH(_from, _to, _amount, _data);
     }

contracts/src/L1/gateways/L1StandardERC20Gateway.sol

@@ -99,7 +99,7 @@ contract L1StandardERC20Gateway is Initializable, ScrollGatewayBase, L1ERC20Gate
         // but it seems not a big problem.
         IERC20(_l1Token).safeTransfer(_to, _amount);
 
-        // @todo forward `_data` to `_to` in the near future
+        _doCallback(_to, _data);
 
         emit FinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
     }

contracts/src/L1/gateways/L1WETHGateway.sol

@@ -90,7 +90,7 @@ contract L1WETHGateway is Initializable, ScrollGatewayBase, L1ERC20Gateway {
         IWETH(_l1Token).deposit{value: _amount}();
         IERC20(_l1Token).safeTransfer(_to, _amount);
 
-        // @todo forward `_data` to `_to`.
+        _doCallback(_to, _data);
 
         emit FinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
     }