+
+#[test]
+fn custom_tlvs_to_blinded_path() {
+ let chanmon_cfgs = create_chanmon_cfgs(2);
+ let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+ let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+ let chan_upd = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0).0.contents;
+
+ let amt_msat = 5000;
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[1], Some(amt_msat), None);
+ let payee_tlvs = ReceiveTlvs {
+ payment_secret,
+ payment_constraints: PaymentConstraints {
+ max_cltv_expiry: u32::max_value(),
+ htlc_minimum_msat: chan_upd.htlc_minimum_msat,
+ },
+ payment_context: PaymentContext::unknown(),
+ };
+ let mut secp_ctx = Secp256k1::new();
+ let blinded_path = BlindedPath::one_hop_for_payment(
+ nodes[1].node.get_our_node_id(), payee_tlvs, TEST_FINAL_CLTV as u16,
+ &chanmon_cfgs[1].keys_manager, &secp_ctx
+ ).unwrap();
+
+ let route_params = RouteParameters::from_payment_params_and_value(
+ PaymentParameters::blinded(vec![blinded_path]),
+ amt_msat,
+ );
+
+ let recipient_onion_fields = RecipientOnionFields::spontaneous_empty()
+ .with_custom_tlvs(vec![((1 << 16) + 1, vec![42, 42])])
+ .unwrap();
+ nodes[0].node.send_payment(payment_hash, recipient_onion_fields.clone(),
+ PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ let ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
+
+ let path = &[&nodes[1]];
+ let args = PassAlongPathArgs::new(&nodes[0], path, amt_msat, payment_hash, ev)
+ .with_payment_secret(payment_secret)
+ .with_custom_tlvs(recipient_onion_fields.custom_tlvs.clone());
+ do_pass_along_path(args);
+ claim_payment(&nodes[0], &[&nodes[1]], payment_preimage);
+}