Add endorser tx unwrapping test

Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>

off_chain_data/application-go/blockParser_test.go

@@ -0,0 +1,126 @@
+package main_test
+
+import (
+	"encoding/json"
+	"testing"
+
+	ocd "offChainData"
+
+	"github.com/hyperledger/fabric-protos-go-apiv2/ledger/rwset"
+	"github.com/hyperledger/fabric-protos-go-apiv2/ledger/rwset/kvrwset"
+	"github.com/hyperledger/fabric-protos-go-apiv2/peer"
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+)
+
+func TestGetReadWriteSetsFromEndorserTransaction(t *testing.T) {
+	nsReadWriteSetFake, expectedNamespace, expectedAsset := nsReadWriteSetFake()
+
+	transaction := &peer.Transaction{
+		Actions: []*peer.TransactionAction{
+			{
+				Payload: protoMarshalOrPanic(&peer.ChaincodeActionPayload{
+					Action: &peer.ChaincodeEndorsedAction{
+						ProposalResponsePayload: protoMarshalOrPanic(&peer.ProposalResponsePayload{
+							Extension: protoMarshalOrPanic(&peer.ChaincodeAction{
+								Results: protoMarshalOrPanic(&rwset.TxReadWriteSet{
+									NsRwset: []*rwset.NsReadWriteSet{nsReadWriteSetFake},
+								}),
+							}),
+						}),
+					},
+				}),
+			},
+		},
+	}
+
+	parsedEndorserTransaction := ocd.NewParsedEndorserTransaction(transaction)
+	if len(parsedEndorserTransaction.GetReadWriteSets()) != 1 {
+		t.Fatal("expected 1 ReadWriteSet, got", len(parsedEndorserTransaction.GetReadWriteSets()))
+	}
+
+	assertReadWriteSet(
+		parsedEndorserTransaction.GetReadWriteSets()[0].GetNamespaceReadWriteSets()[0],
+		expectedNamespace,
+		expectedAsset,
+		t,
+	)
+}
+
+func assertReadWriteSet(parsedNsRwSet ocd.NamespaceReadWriteSet, expectedNamespace string, expectedAsset ocd.Asset, t *testing.T) {
+	if parsedNsRwSet.GetNamespace() != expectedNamespace {
+		t.Errorf("expected namespace %s, got %s", expectedNamespace, parsedNsRwSet.GetNamespace())
+	}
+
+	actualKVRWSet := parsedNsRwSet.GetReadWriteSet()
+	if len(actualKVRWSet.Writes) != 1 {
+		t.Fatal("expected 1 write, got", len(actualKVRWSet.Writes))
+	}
+
+	actualWrite := actualKVRWSet.Writes[0]
+	if actualWrite.GetKey() != expectedAsset.ID {
+		t.Errorf("expected key %s, got %s", expectedAsset.ID, actualWrite.GetKey())
+	}
+
+	if string(actualWrite.GetValue()) != string(jsonMarshalOrPanic(expectedAsset)) {
+		t.Errorf("expected value %s, got %s", jsonMarshalOrPanic(expectedAsset), actualWrite.GetValue())
+	}
+}
+
+func TestReadWriteSetWrapping(t *testing.T) {
+	nsReadWriteSetFake, _, _ := nsReadWriteSetFake()
+
+	txReadWriteSetFake := &rwset.TxReadWriteSet{
+		NsRwset: []*rwset.NsReadWriteSet{nsReadWriteSetFake},
+	}
+
+	parsedRwSet := ocd.NewParsedReadWriteSet(txReadWriteSetFake)
+	if len(parsedRwSet.GetNamespaceReadWriteSets()) != 1 {
+		t.Fatalf("Expected 1 NamespaceReadWriteSet, got %d", len(parsedRwSet.GetNamespaceReadWriteSets()))
+	}
+}
+
+func TestNamespaceReadWriteSetParsing(t *testing.T) {
+	nsReadWriteSetFake, expectedNamespace, expectedAsset := nsReadWriteSetFake()
+
+	parsedNsRwSet := ocd.NewParsedNamespaceReadWriteSet(nsReadWriteSetFake)
+	assertReadWriteSet(
+		parsedNsRwSet,
+		expectedNamespace,
+		expectedAsset,
+		t,
+	)
+}
+
+func nsReadWriteSetFake() (*rwset.NsReadWriteSet, string, ocd.Asset) {
+	expectedNamespace := "basic"
+	expectedAsset := ocd.NewAsset()
+
+	result := &rwset.NsReadWriteSet{
+		Namespace: expectedNamespace,
+		Rwset: protoMarshalOrPanic(&kvrwset.KVRWSet{
+			Writes: []*kvrwset.KVWrite{{
+				Key:   expectedAsset.ID,
+				Value: []byte(jsonMarshalOrPanic(expectedAsset)),
+			}},
+		}),
+	}
+
+	return result, expectedNamespace, expectedAsset
+}
+
+func protoMarshalOrPanic(v protoreflect.ProtoMessage) []byte {
+	result, err := proto.Marshal(v)
+	if err != nil {
+		panic(err)
+	}
+	return result
+}
+
+func jsonMarshalOrPanic(v any) []byte {
+	result, err := json.Marshal(v)
+	if err != nil {
+		panic(err)
+	}
+	return result
+}