internal/ethapi: fix test

internal/ethapi/api.go

@@ -1519,17 +1519,18 @@ func (api *TransactionAPI) SendTransaction(ctx context.Context, args Transaction
 // processing (signing + broadcast).
 func (api *TransactionAPI) FillTransaction(ctx context.Context, args TransactionArgs) (*SignTransactionResult, error) {
 	// Set some sanity defaults and terminate on failure
-	config := sidecarConfig{
+	sidecarVersion := types.BlobSidecarVersion0
-		blobSidecarAllowed: true,
-		blobSidecarVersion: types.BlobSidecarVersion0,
-	}
 	if len(args.Blobs) > 0 {
 		chainHead := api.b.CurrentHeader()
 		isOsaka := api.b.ChainConfig().IsOsaka(chainHead.Number, chainHead.Time)
 		if isOsaka {
-			config.blobSidecarVersion = types.BlobSidecarVersion1
+			sidecarVersion = types.BlobSidecarVersion1
 		}
 	}
+	config := sidecarConfig{
+		blobSidecarAllowed: true,
+		blobSidecarVersion: sidecarVersion,
+	}
 	if err := args.setDefaults(ctx, api.b, config); err != nil {
 		return nil, err
 	}

internal/ethapi/api_test.go

@@ -34,11 +34,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/ethereum/go-ethereum/accounts/abi"
-	"github.com/ethereum/go-ethereum/internal/ethapi/override"
-
 	"github.com/ethereum/go-ethereum"
 	"github.com/ethereum/go-ethereum/accounts"
+	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/accounts/keystore"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
@@ -56,6 +54,7 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/internal/blocktest"
+	"github.com/ethereum/go-ethereum/internal/ethapi/override"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/holiman/uint256"
@@ -2661,19 +2660,53 @@ func TestSendBlobTransaction(t *testing.T) {
 
 func TestFillBlobTransaction(t *testing.T) {
 	t.Parallel()
+
+	testFillBlobTransaction(t, false)
+	testFillBlobTransaction(t, true)
+}
+
+func testFillBlobTransaction(t *testing.T, osaka bool) {
 	// Initialize test accounts
+	config := *params.MergedTestChainConfig
+	if !osaka {
+		config.OsakaTime = nil
+	}
 	var (
 		key, _  = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
 		to      = crypto.PubkeyToAddress(key.PublicKey)
 		genesis = &core.Genesis{
-			Config: params.MergedTestChainConfig,
+			Config: &config,
 			Alloc:  types.GenesisAlloc{},
 		}
 		emptyBlob                          = new(kzg4844.Blob)
 		emptyBlobs                         = []kzg4844.Blob{*emptyBlob}
 		emptyBlobCommit, _                 = kzg4844.BlobToCommitment(emptyBlob)
 		emptyBlobProof, _                  = kzg4844.ComputeBlobProof(emptyBlob, emptyBlobCommit)
+		emptyBlobCellProofs, _             = kzg4844.ComputeCellProofs(emptyBlob)
 		emptyBlobHash          common.Hash = kzg4844.CalcBlobHashV1(sha256.New(), &emptyBlobCommit)
+
+		fillEmptyKZGProofs = func(blobs int) []kzg4844.Proof {
+			if osaka {
+				return make([]kzg4844.Proof, blobs*kzg4844.CellProofsPerBlob)
+			}
+			return make([]kzg4844.Proof, blobs)
+		}
+		expectSidecar = func() *types.BlobTxSidecar {
+			if osaka {
+				return types.NewBlobTxSidecar(
+					types.BlobSidecarVersion1,
+					emptyBlobs,
+					[]kzg4844.Commitment{emptyBlobCommit},
+					emptyBlobCellProofs,
+				)
+			}
+			return types.NewBlobTxSidecar(
+				types.BlobSidecarVersion0,
+				emptyBlobs,
+				[]kzg4844.Commitment{emptyBlobCommit},
+				[]kzg4844.Proof{emptyBlobProof},
+			)
+		}
 	)
 	b := newTestBackend(t, 1, genesis, beacon.New(ethash.NewFaker()), func(i int, b *core.BlockGen) {
 		b.SetPoS()
@@ -2733,7 +2766,7 @@ func TestFillBlobTransaction(t *testing.T) {
 				Commitments: []kzg4844.Commitment{{}, {}},
 				Proofs:      []kzg4844.Proof{{}},
 			},
-			err: `number of blobs and proofs mismatch (have=1, want=2)`,
+			err: fmt.Sprintf(`number of blobs and proofs mismatch (have=1, want=%d)`, len(fillEmptyKZGProofs(2))),
 		},
 		{
 			name: "TestInvalidProofVerification",
@@ -2743,7 +2776,7 @@ func TestFillBlobTransaction(t *testing.T) {
 				Value:       (*hexutil.Big)(big.NewInt(1)),
 				Blobs:       []kzg4844.Blob{{}, {}},
 				Commitments: []kzg4844.Commitment{{}, {}},
-				Proofs:      []kzg4844.Proof{{}, {}},
+				Proofs:      fillEmptyKZGProofs(2),
 			},
 			err: `failed to verify blob proof: short buffer`,
 		},
@@ -2759,7 +2792,7 @@ func TestFillBlobTransaction(t *testing.T) {
 			},
 			want: &result{
 				Hashes:  []common.Hash{emptyBlobHash},
-				Sidecar: types.NewBlobTxSidecar(types.BlobSidecarVersion0, emptyBlobs, []kzg4844.Commitment{emptyBlobCommit}, []kzg4844.Proof{emptyBlobProof}),
+				Sidecar: expectSidecar(),
 			},
 		},
 		{
@@ -2775,7 +2808,7 @@ func TestFillBlobTransaction(t *testing.T) {
 			},
 			want: &result{
 				Hashes:  []common.Hash{emptyBlobHash},
-				Sidecar: types.NewBlobTxSidecar(types.BlobSidecarVersion0, emptyBlobs, []kzg4844.Commitment{emptyBlobCommit}, []kzg4844.Proof{emptyBlobProof}),
+				Sidecar: expectSidecar(),
 			},
 		},
 		{
@@ -2801,7 +2834,7 @@ func TestFillBlobTransaction(t *testing.T) {
 			},
 			want: &result{
 				Hashes:  []common.Hash{emptyBlobHash},
-				Sidecar: types.NewBlobTxSidecar(types.BlobSidecarVersion0, emptyBlobs, []kzg4844.Commitment{emptyBlobCommit}, []kzg4844.Proof{emptyBlobProof}),
+				Sidecar: expectSidecar(),
 			},
 		},
 	}

internal/ethapi/transaction_args.go

@@ -306,9 +306,10 @@ func (args *TransactionArgs) setBlobTxSidecar(ctx context.Context, config sideca
 	if args.Commitments != nil && len(args.Commitments) != n {
 		return fmt.Errorf("number of blobs and commitments mismatch (have=%d, want=%d)", len(args.Commitments), n)
 	}
-	proofLen := n
+
 	// if V0: len(blobs) == len(proofs)
 	// if V1: len(blobs) == len(proofs) * 128
+	proofLen := n
 	if config.blobSidecarVersion == types.BlobSidecarVersion1 {
 		proofLen = n * kzg4844.CellProofsPerBlob
 	}
@@ -326,7 +327,7 @@ func (args *TransactionArgs) setBlobTxSidecar(ctx context.Context, config sideca
 	if args.Commitments == nil {
 		var (
 			commitments = make([]kzg4844.Commitment, n)
-			proofs      = make([]kzg4844.Proof, proofLen)
+			proofs      = make([]kzg4844.Proof, 0, proofLen)
 		)
 		for i, b := range args.Blobs {
 			c, err := kzg4844.BlobToCommitment(&b)
@@ -341,11 +342,11 @@ func (args *TransactionArgs) setBlobTxSidecar(ctx context.Context, config sideca
 				if err != nil {
 					return fmt.Errorf("blobs[%d]: error computing proof: %v", i, err)
 				}
-				proofs[i] = p
+				proofs = append(proofs, p)
 			case types.BlobSidecarVersion1:
 				ps, err := kzg4844.ComputeCellProofs(&b)
 				if err != nil {
-					return fmt.Errorf("blobs[%d]: error computing cell proof: %v", i, err)
+					return fmt.Errorf("blobs[%d]: error computing proof: %v", i, err)
 				}
 				proofs = append(proofs, ps...)
 			}
@@ -362,7 +363,7 @@ func (args *TransactionArgs) setBlobTxSidecar(ctx context.Context, config sideca
 			}
 		case types.BlobSidecarVersion1:
 			if err := kzg4844.VerifyCellProofs(args.Blobs, args.Commitments, args.Proofs); err != nil {
-				return fmt.Errorf("failed to verify blob cell proof: %v", err)
+				return fmt.Errorf("failed to verify blob proof: %v", err)
 			}
 		}
 	}