fix(l2geth-verifier): only check last batch of the bundle (#904)

* fix(l2geth-verifier): only check the last batch of each bundle

* refactor function comments

* add more logs to debug

* fix the bug

* Revert "add more logs to debug"

This reverts commit 4befe9fe739275988b4bf34999bd1aad4d7a1d0e.

* tweak

* TestValidateBatchInFinalizeByBundle

* update da-codec dependency

* move rawdb.WriteFinalizedBatchMeta outside the loop

* use batch writer

* change log.Crit to log.Error

go.mod

@@ -50,7 +50,7 @@ require (
 	github.com/prometheus/tsdb v0.7.1
 	github.com/rjeczalik/notify v0.9.1
 	github.com/rs/cors v1.7.0
-	github.com/scroll-tech/da-codec v0.1.1-0.20240703091800-5b6cded48ab7
+	github.com/scroll-tech/da-codec v0.1.1-0.20240716101216-c55ed9455cf4
 	github.com/scroll-tech/zktrie v0.8.4
 	github.com/shirou/gopsutil v3.21.11+incompatible
 	github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4

go.sum

@@ -392,8 +392,8 @@ github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncj
 github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/scroll-tech/da-codec v0.1.1-0.20240703091800-5b6cded48ab7 h1:UfiLBLCAMBk9bsTP3fc1fETpNVFSQapQVdLcZveyV0M=
+github.com/scroll-tech/da-codec v0.1.1-0.20240716101216-c55ed9455cf4 h1:40Lby3huKNFZ2EXzxqVpADB+caepDRrNRoUgTsCKN88=
-github.com/scroll-tech/da-codec v0.1.1-0.20240703091800-5b6cded48ab7/go.mod h1:D6XEESeNVJkQJlv3eK+FyR+ufPkgVQbJzERylQi53Bs=
+github.com/scroll-tech/da-codec v0.1.1-0.20240716101216-c55ed9455cf4/go.mod h1:D6XEESeNVJkQJlv3eK+FyR+ufPkgVQbJzERylQi53Bs=
 github.com/scroll-tech/zktrie v0.8.4 h1:UagmnZ4Z3ITCk+aUq9NQZJNAwnWl4gSxsLb2Nl7IgRE=
 github.com/scroll-tech/zktrie v0.8.4/go.mod h1:XvNo7vAk8yxNyTjBDj5WIiFzYW4bx/gJ78+NK6Zn6Uk=
 github.com/segmentio/kafka-go v0.1.0/go.mod h1:X6itGqS9L4jDletMsxZ7Dz+JFWxM6JHfPOCvTvk+EJo=

params/version.go

@@ -24,7 +24,7 @@ import (
 const (
 	VersionMajor = 5         // Major version component of the current release
 	VersionMinor = 5         // Minor version component of the current release
-	VersionPatch = 12        // Patch version component of the current release
+	VersionPatch = 13        // Patch version component of the current release
 	VersionMeta  = "mainnet" // Version metadata to append to the version string
 )
 

rollup/rollup_sync_service/rollup_sync_service.go

@@ -242,26 +242,31 @@ func (s *RollupSyncService) parseAndUpdateRollupEventLogs(logs []types.Log, endB
 			}
 
 			var highestFinalizedBlockNumber uint64
+			batchWriter := s.db.NewBatch()
 			for index := startBatchIndex; index <= batchIndex; index++ {
 				parentBatchMeta, chunks, err := s.getLocalInfoForBatch(index)
 				if err != nil {
 					return fmt.Errorf("failed to get local node info, batch index: %v, err: %w", index, err)
 				}
 
-				endBlock, finalizedBatchMeta, err := validateBatch(event, parentBatchMeta, chunks, s.bc.Config(), s.stack)
+				endBlock, finalizedBatchMeta, err := validateBatch(index, event, parentBatchMeta, chunks, s.bc.Config(), s.stack)
 				if err != nil {
 					return fmt.Errorf("fatal: validateBatch failed: finalize event: %v, err: %w", event, err)
 				}
 
-				rawdb.WriteFinalizedBatchMeta(s.db, index, finalizedBatchMeta)
+				rawdb.WriteFinalizedBatchMeta(batchWriter, index, finalizedBatchMeta)
+				highestFinalizedBlockNumber = endBlock
 
 				if index%100 == 0 {
 					log.Info("finalized batch progress", "batch index", index, "finalized l2 block height", endBlock)
 				}
-
-				highestFinalizedBlockNumber = endBlock
 			}
 
+			if err := batchWriter.Write(); err != nil {
+				log.Error("fatal: failed to batch write finalized batch meta to database", "startBatchIndex", startBatchIndex, "endBatchIndex", batchIndex,
+					"batchCount", batchIndex-startBatchIndex+1, "highestFinalizedBlockNumber", highestFinalizedBlockNumber, "err", err)
+				return fmt.Errorf("failed to batch write finalized batch meta to database: %w", err)
+			}
 			rawdb.WriteFinalizedL2BlockNumber(s.db, highestFinalizedBlockNumber)
 			rawdb.WriteLastFinalizedBatchIndex(s.db, batchIndex)
 			log.Debug("write finalized l2 block number", "batch index", batchIndex, "finalized l2 block height", highestFinalizedBlockNumber)
@@ -423,42 +428,48 @@ func (s *RollupSyncService) decodeChunkBlockRanges(txData []byte) ([]*rawdb.Chun
 }
 
 // validateBatch verifies the consistency between the L1 contract and L2 node data.
+// It performs the following checks:
+// 1. Recalculates the batch hash locally
+// 2. Compares local state root, local withdraw root, and locally calculated batch hash with L1 data (for the last batch only when "finalize by bundle")
+//
 // The function will terminate the node and exit if any consistency check fails.
-// It returns the number of the end block, a finalized batch meta data, and an error if any.
+//
-func validateBatch(event *L1FinalizeBatchEvent, parentBatchMeta *rawdb.FinalizedBatchMeta, chunks []*encoding.Chunk, chainCfg *params.ChainConfig, stack *node.Node) (uint64, *rawdb.FinalizedBatchMeta, error) {
+// Parameters:
+// - batchIndex: batch index of the validated batch
+// - event: L1 finalize batch event data
+// - parentBatchMeta: metadata of the parent batch
+// - chunks: slice of chunk data for the current batch
+// - chainCfg: chain configuration to identify the codec version
+// - stack: node stack to terminate the node in case of inconsistency
+//
+// Returns:
+// - uint64: the end block height of the batch
+// - *rawdb.FinalizedBatchMeta: finalized batch metadata
+// - error: any error encountered during validation
+//
+// Note: This function is compatible with both "finalize by batch" and "finalize by bundle" methods.
+// In "finalize by bundle", only the last batch of each bundle is fully verified.
+// This check still ensures the correctness of all batch hashes in the bundle due to the parent-child relationship between batch hashes.
+func validateBatch(batchIndex uint64, event *L1FinalizeBatchEvent, parentBatchMeta *rawdb.FinalizedBatchMeta, chunks []*encoding.Chunk, chainCfg *params.ChainConfig, stack *node.Node) (uint64, *rawdb.FinalizedBatchMeta, error) {
 	if len(chunks) == 0 {
-		return 0, nil, fmt.Errorf("invalid argument: length of chunks is 0, batch index: %v", event.BatchIndex.Uint64())
+		return 0, nil, fmt.Errorf("invalid argument: length of chunks is 0, batch index: %v", batchIndex)
 	}
 
 	startChunk := chunks[0]
 	if len(startChunk.Blocks) == 0 {
-		return 0, nil, fmt.Errorf("invalid argument: block count of start chunk is 0, batch index: %v", event.BatchIndex.Uint64())
+		return 0, nil, fmt.Errorf("invalid argument: block count of start chunk is 0, batch index: %v", batchIndex)
 	}
 	startBlock := startChunk.Blocks[0]
 
 	endChunk := chunks[len(chunks)-1]
 	if len(endChunk.Blocks) == 0 {
-		return 0, nil, fmt.Errorf("invalid argument: block count of end chunk is 0, batch index: %v", event.BatchIndex.Uint64())
+		return 0, nil, fmt.Errorf("invalid argument: block count of end chunk is 0, batch index: %v", batchIndex)
 	}
 	endBlock := endChunk.Blocks[len(endChunk.Blocks)-1]
 
-	localStateRoot := endBlock.Header.Root
-	if localStateRoot != event.StateRoot {
-		log.Error("State root mismatch", "batch index", event.BatchIndex.Uint64(), "start block", startBlock.Header.Number.Uint64(), "end block", endBlock.Header.Number.Uint64(), "parent batch hash", parentBatchMeta.BatchHash.Hex(), "l1 finalized state root", event.StateRoot.Hex(), "l2 state root", localStateRoot.Hex())
-		stack.Close()
-		os.Exit(1)
-	}
-
-	localWithdrawRoot := endBlock.WithdrawRoot
-	if localWithdrawRoot != event.WithdrawRoot {
-		log.Error("Withdraw root mismatch", "batch index", event.BatchIndex.Uint64(), "start block", startBlock.Header.Number.Uint64(), "end block", endBlock.Header.Number.Uint64(), "parent batch hash", parentBatchMeta.BatchHash.Hex(), "l1 finalized withdraw root", event.WithdrawRoot.Hex(), "l2 withdraw root", localWithdrawRoot.Hex())
-		stack.Close()
-		os.Exit(1)
-	}
-
 	// Note: All params of batch are calculated locally based on the block data.
 	batch := &encoding.Batch{
-		Index:                      event.BatchIndex.Uint64(),
+		Index:                      batchIndex,
 		TotalL1MessagePoppedBefore: parentBatchMeta.TotalL1MessagePopped,
 		ParentBatchHash:            parentBatchMeta.BatchHash,
 		Chunks:                     chunks,
@@ -468,31 +479,54 @@ func validateBatch(event *L1FinalizeBatchEvent, parentBatchMeta *rawdb.Finalized
 	if startBlock.Header.Number.Uint64() == 0 || !chainCfg.IsBernoulli(startBlock.Header.Number) { // codecv0: genesis batch or batches before Bernoulli
 		daBatch, err := codecv0.NewDABatch(batch)
 		if err != nil {
-			return 0, nil, fmt.Errorf("failed to create codecv0 DA batch, batch index: %v, err: %w", event.BatchIndex.Uint64(), err)
+			return 0, nil, fmt.Errorf("failed to create codecv0 DA batch, batch index: %v, err: %w", batchIndex, err)
 		}
 		localBatchHash = daBatch.Hash()
 	} else if !chainCfg.IsCurie(startBlock.Header.Number) { // codecv1: batches after Bernoulli and before Curie
 		daBatch, err := codecv1.NewDABatch(batch)
 		if err != nil {
-			return 0, nil, fmt.Errorf("failed to create codecv1 DA batch, batch index: %v, err: %w", event.BatchIndex.Uint64(), err)
+			return 0, nil, fmt.Errorf("failed to create codecv1 DA batch, batch index: %v, err: %w", batchIndex, err)
 		}
 		localBatchHash = daBatch.Hash()
 	} else if !chainCfg.IsDarwin(startBlock.Header.Time) { // codecv2: batches after Curie and before Darwin
 		daBatch, err := codecv2.NewDABatch(batch)
 		if err != nil {
-			return 0, nil, fmt.Errorf("failed to create codecv2 DA batch, batch index: %v, err: %w", event.BatchIndex.Uint64(), err)
+			return 0, nil, fmt.Errorf("failed to create codecv2 DA batch, batch index: %v, err: %w", batchIndex, err)
 		}
 		localBatchHash = daBatch.Hash()
 	} else { // codecv3: batches after Darwin
 		daBatch, err := codecv3.NewDABatch(batch)
 		if err != nil {
-			return 0, nil, fmt.Errorf("failed to create codecv3 DA batch, batch index: %v, err: %w", event.BatchIndex.Uint64(), err)
+			return 0, nil, fmt.Errorf("failed to create codecv3 DA batch, batch index: %v, err: %w", batchIndex, err)
 		}
 		localBatchHash = daBatch.Hash()
 	}
 
-	// Note: If the batch headers match, this ensures the consistency of blocks and transactions
+	localStateRoot := endBlock.Header.Root
+	localWithdrawRoot := endBlock.WithdrawRoot
+
+	// Note: If the state root, withdraw root, and batch headers match, this ensures the consistency of blocks and transactions
 	// (including skipped transactions) between L1 and L2.
+	//
+	// Only check when batch index matches the index of the event. This is compatible with both "finalize by batch" and "finalize by bundle":
+	// - finalize by batch: check all batches
+	// - finalize by bundle: check the last batch, because only one event (containing the info of the last batch) is emitted per bundle
+	if batchIndex == event.BatchIndex.Uint64() {
+		if localStateRoot != event.StateRoot {
+			log.Error("State root mismatch", "batch index", event.BatchIndex.Uint64(), "start block", startBlock.Header.Number.Uint64(), "end block", endBlock.Header.Number.Uint64(), "parent batch hash", parentBatchMeta.BatchHash.Hex(), "l1 finalized state root", event.StateRoot.Hex(), "l2 state root", localStateRoot.Hex())
+			stack.Close()
+			os.Exit(1)
+		}
+
+		if localWithdrawRoot != event.WithdrawRoot {
+			log.Error("Withdraw root mismatch", "batch index", event.BatchIndex.Uint64(), "start block", startBlock.Header.Number.Uint64(), "end block", endBlock.Header.Number.Uint64(), "parent batch hash", parentBatchMeta.BatchHash.Hex(), "l1 finalized withdraw root", event.WithdrawRoot.Hex(), "l2 withdraw root", localWithdrawRoot.Hex())
+			stack.Close()
+			os.Exit(1)
+		}
+
+		// Verify batch hash
+		// This check ensures the correctness of all batch hashes in the bundle
+		// due to the parent-child relationship between batch hashes
 		if localBatchHash != event.BatchHash {
 			log.Error("Batch hash mismatch", "batch index", event.BatchIndex.Uint64(), "start block", startBlock.Header.Number.Uint64(), "end block", endBlock.Header.Number.Uint64(), "parent batch hash", parentBatchMeta.BatchHash.Hex(), "parent TotalL1MessagePopped", parentBatchMeta.TotalL1MessagePopped, "l1 finalized batch hash", event.BatchHash.Hex(), "l2 batch hash", localBatchHash.Hex())
 			chunksJson, err := json.Marshal(chunks)
@@ -503,6 +537,7 @@ func validateBatch(event *L1FinalizeBatchEvent, parentBatchMeta *rawdb.Finalized
 			stack.Close()
 			os.Exit(1)
 		}
+	}
 
 	totalL1MessagePopped := parentBatchMeta.TotalL1MessagePopped
 	for _, chunk := range chunks {

rollup/rollup_sync_service/rollup_sync_service_test.go

@@ -552,7 +552,7 @@ func TestValidateBatchCodecv0(t *testing.T) {
 		WithdrawRoot: chunk3.Blocks[len(chunk3.Blocks)-1].WithdrawRoot,
 	}
 
-	endBlock1, finalizedBatchMeta1, err := validateBatch(event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
+	endBlock1, finalizedBatchMeta1, err := validateBatch(event1.BatchIndex.Uint64(), event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(13), endBlock1)
 
@@ -572,7 +572,7 @@ func TestValidateBatchCodecv0(t *testing.T) {
 		StateRoot:    chunk4.Blocks[len(chunk4.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk4.Blocks[len(chunk4.Blocks)-1].WithdrawRoot,
 	}
-	endBlock2, finalizedBatchMeta2, err := validateBatch(event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
+	endBlock2, finalizedBatchMeta2, err := validateBatch(event2.BatchIndex.Uint64(), event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(17), endBlock2)
 
@@ -605,7 +605,7 @@ func TestValidateBatchCodecv1(t *testing.T) {
 		WithdrawRoot: chunk3.Blocks[len(chunk3.Blocks)-1].WithdrawRoot,
 	}
 
-	endBlock1, finalizedBatchMeta1, err := validateBatch(event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
+	endBlock1, finalizedBatchMeta1, err := validateBatch(event1.BatchIndex.Uint64(), event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(13), endBlock1)
 
@@ -625,7 +625,7 @@ func TestValidateBatchCodecv1(t *testing.T) {
 		StateRoot:    chunk4.Blocks[len(chunk4.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk4.Blocks[len(chunk4.Blocks)-1].WithdrawRoot,
 	}
-	endBlock2, finalizedBatchMeta2, err := validateBatch(event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
+	endBlock2, finalizedBatchMeta2, err := validateBatch(event2.BatchIndex.Uint64(), event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(17), endBlock2)
 
@@ -658,7 +658,7 @@ func TestValidateBatchCodecv2(t *testing.T) {
 		WithdrawRoot: chunk3.Blocks[len(chunk3.Blocks)-1].WithdrawRoot,
 	}
 
-	endBlock1, finalizedBatchMeta1, err := validateBatch(event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
+	endBlock1, finalizedBatchMeta1, err := validateBatch(event1.BatchIndex.Uint64(), event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(13), endBlock1)
 
@@ -678,7 +678,7 @@ func TestValidateBatchCodecv2(t *testing.T) {
 		StateRoot:    chunk4.Blocks[len(chunk4.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk4.Blocks[len(chunk4.Blocks)-1].WithdrawRoot,
 	}
-	endBlock2, finalizedBatchMeta2, err := validateBatch(event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
+	endBlock2, finalizedBatchMeta2, err := validateBatch(event2.BatchIndex.Uint64(), event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(17), endBlock2)
 
@@ -711,7 +711,7 @@ func TestValidateBatchCodecv3(t *testing.T) {
 		WithdrawRoot: chunk3.Blocks[len(chunk3.Blocks)-1].WithdrawRoot,
 	}
 
-	endBlock1, finalizedBatchMeta1, err := validateBatch(event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
+	endBlock1, finalizedBatchMeta1, err := validateBatch(event1.BatchIndex.Uint64(), event1, parentBatchMeta1, []*encoding.Chunk{chunk1, chunk2, chunk3}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(13), endBlock1)
 
@@ -731,7 +731,7 @@ func TestValidateBatchCodecv3(t *testing.T) {
 		StateRoot:    chunk4.Blocks[len(chunk4.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk4.Blocks[len(chunk4.Blocks)-1].WithdrawRoot,
 	}
-	endBlock2, finalizedBatchMeta2, err := validateBatch(event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
+	endBlock2, finalizedBatchMeta2, err := validateBatch(event2.BatchIndex.Uint64(), event2, parentBatchMeta2, []*encoding.Chunk{chunk4}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(17), endBlock2)
 
@@ -758,7 +758,7 @@ func TestValidateBatchUpgrades(t *testing.T) {
 		WithdrawRoot: chunk1.Blocks[len(chunk1.Blocks)-1].WithdrawRoot,
 	}
 
-	endBlock1, finalizedBatchMeta1, err := validateBatch(event1, parentBatchMeta1, []*encoding.Chunk{chunk1}, chainConfig, nil)
+	endBlock1, finalizedBatchMeta1, err := validateBatch(event1.BatchIndex.Uint64(), event1, parentBatchMeta1, []*encoding.Chunk{chunk1}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(2), endBlock1)
 
@@ -778,7 +778,7 @@ func TestValidateBatchUpgrades(t *testing.T) {
 		StateRoot:    chunk2.Blocks[len(chunk2.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk2.Blocks[len(chunk2.Blocks)-1].WithdrawRoot,
 	}
-	endBlock2, finalizedBatchMeta2, err := validateBatch(event2, parentBatchMeta2, []*encoding.Chunk{chunk2}, chainConfig, nil)
+	endBlock2, finalizedBatchMeta2, err := validateBatch(event2.BatchIndex.Uint64(), event2, parentBatchMeta2, []*encoding.Chunk{chunk2}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(3), endBlock2)
 
@@ -798,7 +798,7 @@ func TestValidateBatchUpgrades(t *testing.T) {
 		StateRoot:    chunk3.Blocks[len(chunk3.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk3.Blocks[len(chunk3.Blocks)-1].WithdrawRoot,
 	}
-	endBlock3, finalizedBatchMeta3, err := validateBatch(event3, parentBatchMeta3, []*encoding.Chunk{chunk3}, chainConfig, nil)
+	endBlock3, finalizedBatchMeta3, err := validateBatch(event3.BatchIndex.Uint64(), event3, parentBatchMeta3, []*encoding.Chunk{chunk3}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(13), endBlock3)
 
@@ -818,7 +818,7 @@ func TestValidateBatchUpgrades(t *testing.T) {
 		StateRoot:    chunk4.Blocks[len(chunk4.Blocks)-1].Header.Root,
 		WithdrawRoot: chunk4.Blocks[len(chunk4.Blocks)-1].WithdrawRoot,
 	}
-	endBlock4, finalizedBatchMeta4, err := validateBatch(event4, parentBatchMeta4, []*encoding.Chunk{chunk4}, chainConfig, nil)
+	endBlock4, finalizedBatchMeta4, err := validateBatch(event4.BatchIndex.Uint64(), event4, parentBatchMeta4, []*encoding.Chunk{chunk4}, chainConfig, nil)
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(17), endBlock4)
 
@@ -831,6 +831,51 @@ func TestValidateBatchUpgrades(t *testing.T) {
 	assert.Equal(t, parentBatchMeta5, finalizedBatchMeta4)
 }
 
+func TestValidateBatchInFinalizeByBundle(t *testing.T) {
+	chainConfig := &params.ChainConfig{BernoulliBlock: big.NewInt(0), CurieBlock: big.NewInt(0), DarwinTime: func() *uint64 { t := uint64(0); return &t }()}
+
+	block1 := readBlockFromJSON(t, "./testdata/blockTrace_02.json")
+	block2 := readBlockFromJSON(t, "./testdata/blockTrace_03.json")
+	block3 := readBlockFromJSON(t, "./testdata/blockTrace_04.json")
+	block4 := readBlockFromJSON(t, "./testdata/blockTrace_05.json")
+
+	chunk1 := &encoding.Chunk{Blocks: []*encoding.Block{block1}}
+	chunk2 := &encoding.Chunk{Blocks: []*encoding.Block{block2}}
+	chunk3 := &encoding.Chunk{Blocks: []*encoding.Block{block3}}
+	chunk4 := &encoding.Chunk{Blocks: []*encoding.Block{block4}}
+
+	event := &L1FinalizeBatchEvent{
+		BatchIndex:   big.NewInt(3),
+		BatchHash:    common.HexToHash("0xaa6dc7cc432c8d46a9373e1e96d829a1e24e52fe0468012ff062793ea8f5b55e"),
+		StateRoot:    chunk4.Blocks[len(chunk4.Blocks)-1].Header.Root,
+		WithdrawRoot: chunk4.Blocks[len(chunk4.Blocks)-1].WithdrawRoot,
+	}
+
+	endBlock1, finalizedBatchMeta1, err := validateBatch(0, event, &rawdb.FinalizedBatchMeta{}, []*encoding.Chunk{chunk1}, chainConfig, nil)
+	assert.NoError(t, err)
+	assert.Equal(t, uint64(2), endBlock1)
+
+	endBlock2, finalizedBatchMeta2, err := validateBatch(1, event, finalizedBatchMeta1, []*encoding.Chunk{chunk2}, chainConfig, nil)
+	assert.NoError(t, err)
+	assert.Equal(t, uint64(3), endBlock2)
+
+	endBlock3, finalizedBatchMeta3, err := validateBatch(2, event, finalizedBatchMeta2, []*encoding.Chunk{chunk3}, chainConfig, nil)
+	assert.NoError(t, err)
+	assert.Equal(t, uint64(13), endBlock3)
+
+	endBlock4, finalizedBatchMeta4, err := validateBatch(3, event, finalizedBatchMeta3, []*encoding.Chunk{chunk4}, chainConfig, nil)
+	assert.NoError(t, err)
+	assert.Equal(t, uint64(17), endBlock4)
+
+	parentBatchMeta5 := &rawdb.FinalizedBatchMeta{
+		BatchHash:            event.BatchHash,
+		TotalL1MessagePopped: 42,
+		StateRoot:            event.StateRoot,
+		WithdrawRoot:         event.WithdrawRoot,
+	}
+	assert.Equal(t, parentBatchMeta5, finalizedBatchMeta4)
+}
+
 func readBlockFromJSON(t *testing.T, filename string) *encoding.Block {
 	data, err := os.ReadFile(filename)
 	assert.NoError(t, err)