routing: add TlvTrafficShaper to bandwidth hints

routing/integrated_routing_context_test.go

@@ -8,9 +8,11 @@ import (
 	"time"
 
 	"github.com/lightningnetwork/lnd/channeldb"
+	"github.com/lightningnetwork/lnd/fn"
 	"github.com/lightningnetwork/lnd/kvdb"
 	"github.com/lightningnetwork/lnd/lnwire"
 	"github.com/lightningnetwork/lnd/routing/route"
+	"github.com/lightningnetwork/lnd/tlv"
 	"github.com/lightningnetwork/lnd/zpay32"
 	"github.com/stretchr/testify/require"
 )
@@ -35,6 +37,10 @@ func (m *mockBandwidthHints) availableChanBandwidth(channelID uint64,
 	return balance, ok
 }
 
+func (m *mockBandwidthHints) firstHopCustomBlob() fn.Option[tlv.Blob] {
+	return fn.None[tlv.Blob]()
+}
+
 // integratedRoutingContext defines the context in which integrated routing
 // tests run.
 type integratedRoutingContext struct {
@@ -227,6 +233,9 @@ func (c *integratedRoutingContext) testPayment(maxParts uint32,
 		// Find a route.
 		route, err := session.RequestRoute(
 			amtRemaining, lnwire.MaxMilliSatoshi, inFlightHtlcs, 0,
+			lnwire.CustomRecords{
+				lnwire.MinCustomRecordsTlvType: []byte{1, 2, 3},
+			},
 		)
 		if err != nil {
 			return attempts, err