Validate blobs feature (#12574)

testing/spectest/general/deneb/kzg/BUILD.bazel

@@ -0,0 +1,19 @@
+load("@prysm//tools/go:def.bzl", "go_test")
+
+go_test(
+    name = "go_default_test",
+    size = "small",
+    srcs = ["verify_blob_kzg_proof_batch_test.go"],
+    data = [
+        "@consensus_spec_tests_general//:test_data",
+    ],
+    tags = ["spectest"],
+    deps = [
+        "//beacon-chain/blockchain/kzg:go_default_library",
+        "//proto/prysm/v1alpha1:go_default_library",
+        "//testing/require:go_default_library",
+        "//testing/spectest/utils:go_default_library",
+        "//testing/util:go_default_library",
+        "@com_github_ghodss_yaml//:go_default_library",
+    ],
+)

testing/spectest/general/deneb/kzg/verify_blob_kzg_proof_batch_test.go

@@ -0,0 +1,73 @@
+package kzg
+
+import (
+	"encoding/hex"
+	"path"
+	"testing"
+
+	"github.com/ghodss/yaml"
+	kzgPrysm "github.com/prysmaticlabs/prysm/v4/beacon-chain/blockchain/kzg"
+	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v4/testing/require"
+	"github.com/prysmaticlabs/prysm/v4/testing/spectest/utils"
+	"github.com/prysmaticlabs/prysm/v4/testing/util"
+)
+
+type KZGTestDataInput struct {
+	Blobs       []string `json:"blobs"`
+	Commitments []string `json:"commitments"`
+	Proofs      []string `json:"proofs"`
+}
+
+type KZGTestData struct {
+	Input  KZGTestDataInput `json:"input"`
+	Output bool             `json:"output"`
+}
+
+func TestVerifyBlobKZGProofBatch(t *testing.T) {
+	require.NoError(t, kzgPrysm.Start())
+	testFolders, testFolderPath := utils.TestFolders(t, "general", "deneb", "kzg/verify_blob_kzg_proof_batch/small")
+	if len(testFolders) == 0 {
+		t.Fatalf("No test folders found for %s/%s/%s", "general", "deneb", "kzg/verify_blob_kzg_proof_batch/small")
+	}
+	for _, folder := range testFolders {
+		t.Run(folder.Name(), func(t *testing.T) {
+			file, err := util.BazelFileBytes(path.Join(testFolderPath, folder.Name(), "data.yaml"))
+			require.NoError(t, err)
+			test := &KZGTestData{}
+			require.NoError(t, yaml.Unmarshal(file, test))
+			var sidecars []*ethpb.BlobSidecar
+			blobs := test.Input.Blobs
+			commitments := test.Input.Commitments
+			proofs := test.Input.Proofs
+			if len(proofs) != len(blobs) {
+				require.Equal(t, false, test.Output)
+				return
+			}
+			var kzgs [][]byte
+			// Need separate loops to test length checks in
+			// `IsDataAvailable`
+			for i, blob := range blobs {
+				blobBytes, err := hex.DecodeString(blob[2:])
+				require.NoError(t, err)
+				proofBytes, err := hex.DecodeString(proofs[i][2:])
+				require.NoError(t, err)
+				sidecar := &ethpb.BlobSidecar{
+					Blob:     blobBytes,
+					KzgProof: proofBytes,
+				}
+				sidecars = append(sidecars, sidecar)
+			}
+			for _, commitment := range commitments {
+				commitmentBytes, err := hex.DecodeString(commitment[2:])
+				require.NoError(t, err)
+				kzgs = append(kzgs, commitmentBytes)
+			}
+			if test.Output {
+				require.NoError(t, kzgPrysm.IsDataAvailable(kzgs, sidecars))
+			} else {
+				require.NotNil(t, kzgPrysm.IsDataAvailable(kzgs, sidecars))
+			}
+		})
+	}
+}