feat: helper functions to convert hashes to PlutusData (#1111)

Fixes #1104

Signed-off-by: Aurora Gaffney <[email protected]>

Author: agaffney

ledger/common/common.go

@@ -20,6 +20,7 @@ import (
 	"fmt"
 
 	"github.com/blinklabs-io/gouroboros/cbor"
+	"github.com/blinklabs-io/plutigo/pkg/data"
 	"github.com/btcsuite/btcd/btcutil/bech32"
 	"golang.org/x/crypto/blake2b"
 )
@@ -46,6 +47,10 @@ func (b Blake2b256) Bytes() []byte {
 	return b[:]
 }
 
+func (b Blake2b256) ToPlutusData() data.PlutusData {
+	return data.NewByteString(b[:])
+}
+
 // Blake2b256Hash generates a Blake2b-256 hash from the provided data
 func Blake2b256Hash(data []byte) Blake2b256 {
 	tmpHash, err := blake2b.New(Blake2b256Size, nil)
@@ -77,6 +82,10 @@ func (b Blake2b224) Bytes() []byte {
 	return b[:]
 }
 
+func (b Blake2b224) ToPlutusData() data.PlutusData {
+	return data.NewByteString(b[:])
+}
+
 func (b Blake2b224) MarshalJSON() ([]byte, error) {
 	return json.Marshal(b.String())
 }
@@ -112,6 +121,10 @@ func (b Blake2b160) Bytes() []byte {
 	return b[:]
 }
 
+func (b Blake2b160) ToPlutusData() data.PlutusData {
+	return data.NewByteString(b[:])
+}
+
 // Blake2b160Hash generates a Blake2b-160 hash from the provided data
 func Blake2b160Hash(data []byte) Blake2b160 {
 	tmpHash, err := blake2b.New(Blake2b160Size, nil)

ledger/common/common_test.go

@@ -17,10 +17,12 @@ package common
 import (
 	"encoding/hex"
 	"encoding/json"
+	"reflect"
 	"testing"
 
 	"github.com/blinklabs-io/gouroboros/cbor"
 	"github.com/blinklabs-io/gouroboros/internal/test"
+	"github.com/blinklabs-io/plutigo/pkg/data"
 )
 
 func TestAssetFingerprint(t *testing.T) {
@@ -244,6 +246,20 @@ func TestBlake2b224_String(t *testing.T) {
 	}
 }
 
+func TestBlake2b224_ToPlutusData(t *testing.T) {
+	testData := []byte("blinklabs")
+	hash := Blake2b224Hash(testData)
+	expectedHash, err := hex.DecodeString("d33ef286551f50d455cfeb68b45b02622fb05ef21cfd1aabd0d7880c")
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+	expectedPd := data.NewByteString(expectedHash)
+	tmpPd := hash.ToPlutusData()
+	if !reflect.DeepEqual(tmpPd, expectedPd) {
+		t.Fatalf("did not get expected PlutusData:     got: %#v\n  wanted: %#v", tmpPd, expectedPd)
+	}
+}
+
 func TestCertificateTypeMethods(t *testing.T) {
 	tests := []struct {
 		name     string