test(babbage): block CBOR round-trip

Signed-off-by: Chris Gianelloni <[email protected]>

Author: wolf31o2

ledger/babbage/block_test.go

@@ -1,7 +1,91 @@
+// Copyright 2025 Blink Labs Software
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package babbage_test
 
+import (
+	"bytes"
+	"encoding/hex"
+	"strings"
+	"testing"
+
+	"github.com/blinklabs-io/gouroboros/cbor"
+	"github.com/blinklabs-io/gouroboros/ledger/babbage"
+)
+
 // https://cexplorer.io/block/def34305d66400160e408c9842181e96ca9d1167cd35d8f98bbc3828cb513fb1
 //
 //slot:47260741
 //hash:def34305d66400160e408c9842181e96ca9d1167cd35d8f98bbc3828cb513fb1
 var babbageBlockHex = "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+
+func TestBabbageBlock_CborRoundTrip_UsingCborEncode(t *testing.T) {
+	hexStr := strings.TrimSpace(babbageBlockHex)
+
+	// Decode the hex string into CBOR bytes
+	dataBytes, err := hex.DecodeString(hexStr)
+	if err != nil {
+		t.Fatalf(
+			"Failed to decode Babbage block hex string into CBOR bytes: %v",
+			err,
+		)
+	}
+
+	// Deserialize CBOR bytes into BabbageBlock struct
+	var block babbage.BabbageBlock
+	err = block.UnmarshalCBOR(dataBytes)
+	if err != nil {
+		t.Fatalf("Failed to unmarshal CBOR data into BabbageBlock: %v", err)
+	}
+
+	// Re-encode using the cbor Encode function
+	encoded, err := cbor.Encode(block)
+	if err != nil {
+		t.Fatalf(
+			"Failed to marshal BabbageBlock using custom encode function: %v",
+			err,
+		)
+	}
+	if encoded == nil || len(encoded) == 0 {
+		t.Fatal("Custom encoded CBOR from BabbageBlock is nil or empty")
+	}
+
+	// Ensure the original and re-encoded CBOR bytes are identical
+	if !bytes.Equal(dataBytes, encoded) {
+		t.Errorf(
+			"Custom CBOR round-trip mismatch for Babbage block\nOriginal CBOR (hex): %x\nCustom Encoded CBOR (hex): %x",
+			dataBytes,
+			encoded,
+		)
+
+		// Check from which byte it differs
+		diffIndex := -1
+		for i := 0; i < len(dataBytes) && i < len(encoded); i++ {
+			if dataBytes[i] != encoded[i] {
+				diffIndex = i
+				break
+			}
+		}
+		if diffIndex != -1 {
+			t.Logf("First mismatch at byte index: %d", diffIndex)
+			t.Logf(
+				"Original byte: 0x%02x, Re-encoded byte: 0x%02x",
+				dataBytes[diffIndex],
+				encoded[diffIndex],
+			)
+		} else {
+			t.Logf("Length mismatch: original length = %d, re-encoded length = %d", len(dataBytes), len(encoded))
+		}
+	}
+}