Provide our peers with SCID aliases and forward payments with them

[rust-lightning] / lightning / src / ln / priv_short_conf_tests.rs

diff --git a/lightning/src/ln/priv_short_conf_tests.rs b/lightning/src/ln/priv_short_conf_tests.rs
index f8a1a70e2d341c973ab2af0a2b180e78181fdaae..4fadfc915d418b309ade9f603c82b0e10e1d71ae 100644 (file)
--- a/lightning/src/ln/priv_short_conf_tests.rs
+++ b/lightning/src/ln/priv_short_conf_tests.rs
@@ -237,3 +237,37 @@ fn test_1_conf_open() {
        do_test_1_conf_open(ConnectStyle::TransactionsFirst);
        do_test_1_conf_open(ConnectStyle::FullBlockViaListen);
 }
+
+#[test]
+fn test_routed_scid_alias() {
+       // Trivially test sending a payment which is routed through an SCID alias.
+       let chanmon_cfgs = create_chanmon_cfgs(3);
+       let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+       let mut no_announce_cfg = test_default_channel_config();
+       no_announce_cfg.accept_forwards_to_priv_channels = true;
+       let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(no_announce_cfg), None]);
+       let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).2;
+       create_unannounced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known());
+
+       let last_hop = nodes[2].node.list_usable_channels();
+       let hop_hints = vec![RouteHint(vec![RouteHintHop {
+               src_node_id: nodes[1].node.get_our_node_id(),
+               short_channel_id: last_hop[0].inbound_scid_alias.unwrap(),
+               fees: RoutingFees {
+                       base_msat: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().fee_base_msat,
+                       proportional_millionths: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().fee_proportional_millionths,
+               },
+               cltv_expiry_delta: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().cltv_expiry_delta,
+               htlc_maximum_msat: None,
+               htlc_minimum_msat: None,
+       }])];
+       let (route, payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], hop_hints, 100_000, 42);
+       assert_eq!(route.paths[0][1].short_channel_id, last_hop[0].inbound_scid_alias.unwrap());
+       nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap();
+       check_added_monitors!(nodes[0], 1);
+
+       pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], 100_000, payment_hash, payment_secret);
+       claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
+}