Test for PublicNode Sepolia Beaon APIs

go/ethadapter/blob_beacon_client.go

@@ -97,6 +97,9 @@ func (bc *BeaconHTTPClient) BeaconBlobSidecars(ctx context.Context, slot uint64,
 	if err != nil {
 		return APIGetBlobSidecarsResponse{}, err
 	}
+	if len(resp.Data) == 0 {
+		return APIGetBlobSidecarsResponse{}, fmt.Errorf("no blob sidecars found for blob at slot %d", slot)
+	}
 	return resp, nil
 }
 
@@ -198,11 +201,9 @@ func (cl *L1BeaconClient) fetchSidecars(ctx context.Context, slot uint64, hashes
 }
 
 // GetBlobSidecars fetches blob sidecars that were confirmed in the specified
-// L1 block with the given hashes.
+// L1 block. If hashes are provided, only returns sidecars matching those hashes.
+// If no hashes are provided, returns all sidecars for the block.
 func (cl *L1BeaconClient) GetBlobSidecars(ctx context.Context, b *types.Header, hashes []gethcommon.Hash) ([]*BlobSidecar, error) {
-	if len(hashes) == 0 {
-		return []*BlobSidecar{}, nil
-	}
 	slotFn, err := cl.GetTimeToSlot(ctx)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get time to slot function: %w", err)
@@ -217,6 +218,12 @@ func (cl *L1BeaconClient) GetBlobSidecars(ctx context.Context, b *types.Header,
 		return nil, fmt.Errorf("failed to fetch blob sidecars for slot %v block %v: %w", slot, b, err)
 	}
 
+	// return all sidecars for block if no hashes provided
+	if len(hashes) == 0 {
+		return resp.Data, nil
+	}
+
+	// match sidecars with provided hashes
 	sidecars, err := MatchSidecarsWithHashes(resp.Data, hashes)
 	if err != nil {
 		return nil, err
@@ -233,6 +240,15 @@ func (cl *L1BeaconClient) FetchBlobs(ctx context.Context, b *types.Header, hashe
 	if err != nil {
 		return nil, fmt.Errorf("failed to get blob sidecars for Block Header %s: %w", b.Hash().Hex(), err)
 	}
+
+	// no hashes were provided, create slice of all hashes from sidecars
+	if len(hashes) == 0 {
+		hashes = make([]gethcommon.Hash, len(blobSidecars))
+		for i, sidecar := range blobSidecars {
+			hashes[i] = KZGToVersionedHash(kzg4844.Commitment(sidecar.KZGCommitment))
+		}
+	}
+
 	return BlobsFromSidecars(blobSidecars, hashes)
 }
 

go/host/container/host_container.go

@@ -153,9 +153,10 @@ func NewHostContainerFromConfig(parsedConfig *config.HostInputConfig, logger get
 	obscuroRelevantContracts := []gethcommon.Address{cfg.ManagementContractAddress, cfg.MessageBusAddress}
 	l1Repo := l1.NewL1Repository(l1Client, obscuroRelevantContracts, logger)
 	beaconClient := ethadapter.NewBeaconHTTPClient(new(http.Client), cfg.L1BeaconUrl)
+	beaconFallback := ethadapter.NewBeaconHTTPClient(new(http.Client), cfg.L1BeaconUrl)
 	// we can add more fallback clients as they become available
 	fallback := ethadapter.NewArchivalHTTPClient(new(http.Client), cfg.L1BlobArchiveUrl)
-	blobResolver := l1.NewBlobResolver(ethadapter.NewL1BeaconClient(beaconClient, fallback))
+	blobResolver := l1.NewBlobResolver(ethadapter.NewL1BeaconClient(beaconClient, beaconFallback, fallback))
 	return NewHostContainer(cfg, services, aggP2P, l1Client, l1Repo, enclaveClients, mgmtContractLib, ethWallet, rpcServer, logger, metricsService, blobResolver)
 }
 

go/host/l1/blobresolver_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"net/http"
 	"testing"
+	"time"
 
 	gethcommon "github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -30,3 +31,22 @@ func TestBlobResolver(t *testing.T) {
 	require.NoError(t, err)
 	require.Len(t, blobs, 2)
 }
+
+// TestSepoliaBlobResolver checks the public node sepolia beacon APIs work as expected
+func TestSepoliaBlobResolver(t *testing.T) {
+	t.Skipf("Test will occasionally fail due to the time wi ad ndow landing on a block with no blobs")
+	// l1_beacon_url for sepolia
+	beaconClient := ethadapter.NewBeaconHTTPClient(new(http.Client), "https://ethereum-sepolia-beacon-api.publicnode.com")
+	// l1_blob_archive_url for sepolia
+	fallback := ethadapter.NewBeaconHTTPClient(new(http.Client), "https://eth-beacon-chain-sepolia.drpc.org/rest/")
+	blobResolver := NewBlobResolver(ethadapter.NewL1BeaconClient(beaconClient, fallback))
+
+	// this is a moving point in time so we can't compare hashes or be certain there will be blobs in the block
+	// create block with timestamp 30 days ago relative to current time
+	historicalBlock := &types.Header{
+		Time: uint64(time.Now().Unix()) - (30 * 24 * 60 * 60), // 30 days in seconds
+	}
+
+	_, err := blobResolver.FetchBlobs(context.Background(), historicalBlock, []gethcommon.Hash{})
+	require.NoError(t, err)
+}

integration/simulation/utils.go

@@ -103,8 +103,8 @@ func findHashDups(list []gethcommon.Hash) map[gethcommon.Hash]int {
 }
 
 // FindRollupDups - returns a map of all L2 root hashes that appear multiple times, and how many times
-func findRollupDups(list []*common.ExtRollup) map[common.L2BatchHash]int {
-	elementCount := make(map[common.L2BatchHash]int)
+func findRollupDups(list []*common.ExtRollup) map[common.L2RollupHash]int {
+	elementCount := make(map[common.L2RollupHash]int)
 
 	for _, item := range list {
 		// check if the item/element exist in the duplicate_frequency map
@@ -115,7 +115,7 @@ func findRollupDups(list []*common.ExtRollup) map[common.L2BatchHash]int {
 			elementCount[item.Hash()] = 1 // else start counting from 1
 		}
 	}
-	dups := make(map[common.L2BatchHash]int)
+	dups := make(map[common.L2RollupHash]int)
 	for u, i := range elementCount {
 		if i > 1 {
 			dups[u] = i

integration/simulation/validate_chain.go

@@ -189,15 +189,16 @@ func checkBlockchainOfEthereumNode(t *testing.T, node ethadapter.EthClient, minH
 
 	checkCollectedL1Fees(t, node, s, nodeIdx, rollupReceipts)
 
-	if len(findHashDups(deposits)) > 0 {
-		dups := findHashDups(deposits)
-		t.Errorf("Node %d: Found Deposit duplicates: %v", nodeIdx, dups)
+	hashDups := findHashDups(deposits)
+	if len(hashDups) > 0 {
+		t.Errorf("Node %d: Found Deposit duplicates: %v", nodeIdx, hashDups)
 	}
-	if len(findRollupDups(rollups)) > 0 {
-		dups := findRollupDups(rollups)
+
+	rollupDups := findRollupDups(rollups)
+	if len(rollupDups) > 0 {
 		// todo @siliev - fix in memory rollups, lack of real client breaks the normal ask smart contract flow.
 		if !s.Params.IsInMem {
-			t.Errorf("Node %d: Found Rollup duplicates: %v", nodeIdx, dups)
+			t.Errorf("Node %d: Found Rollup duplicates: %v", nodeIdx, rollupDups)
 		}
 	}