Error when attempting to send an OM to a blinded route with 0 hops

[rust-lightning] / lightning / src / onion_message / functional_tests.rs

diff --git a/lightning/src/onion_message/functional_tests.rs b/lightning/src/onion_message/functional_tests.rs
index 560028c5bbaaf86228b2ded9a2d4e7bec70686b1..695064e467c49dc935728a117472ed1ac1a1e880 100644 (file)
--- a/lightning/src/onion_message/functional_tests.rs
+++ b/lightning/src/onion_message/functional_tests.rs
@@ -119,3 +119,24 @@ fn too_big_packet_error() {
        let err = nodes[0].messenger.send_onion_message(&hops, Destination::Node(hop_node_id)).unwrap_err();
        assert_eq!(err, SendError::TooBigPacket);
 }
+
+#[test]
+fn invalid_blinded_route_error() {
+       // Make sure we error as expected if a provided blinded route has 0 or 1 hops.
+       let mut nodes = create_nodes(3);
+       let (node1, node2, node3) = (nodes.remove(0), nodes.remove(0), nodes.remove(0));
+
+       // 0 hops
+       let secp_ctx = Secp256k1::new();
+       let mut blinded_route = BlindedRoute::new::<EnforcingSigner, _, _>(&[node2.get_node_pk(), node3.get_node_pk()], &*node3.keys_manager, &secp_ctx).unwrap();
+       blinded_route.blinded_hops.clear();
+       let err = node1.messenger.send_onion_message(&[], Destination::BlindedRoute(blinded_route)).unwrap_err();
+       assert_eq!(err, SendError::TooFewBlindedHops);
+
+       // 1 hop
+       let mut blinded_route = BlindedRoute::new::<EnforcingSigner, _, _>(&[node2.get_node_pk(), node3.get_node_pk()], &*node3.keys_manager, &secp_ctx).unwrap();
+       blinded_route.blinded_hops.remove(0);
+       assert_eq!(blinded_route.blinded_hops.len(), 1);
+       let err = node1.messenger.send_onion_message(&[], Destination::BlindedRoute(blinded_route)).unwrap_err();
+       assert_eq!(err, SendError::TooFewBlindedHops);
+}