Test failing pay_for_offer on an unsupported chain

diff --git a/lightning/src/ln/offers_tests.rs b/lightning/src/ln/offers_tests.rs
index e16c0ed515f5836195d867fed906ea203e763007..050df53f3751edcd9c894e3d70be6016102ef94f 100644 (file)
--- a/lightning/src/ln/offers_tests.rs
+++ b/lightning/src/ln/offers_tests.rs
@@ -40,6 +40,7 @@
 //! Nodes without channels are disconnected and connected as needed to ensure that deterministic
 //! blinded paths are used.
 
+use bitcoin::network::constants::Network;
 use core::time::Duration;
 use crate::blinded_path::BlindedPath;
 use crate::events::{Event, MessageSendEventsProvider, PaymentPurpose};
@@ -732,6 +733,32 @@ fn fails_creating_refund_without_blinded_paths() {
        assert!(nodes[0].node.list_recent_payments().is_empty());
 }
 
+/// Fails creating an invoice request when the offer contains an unsupported chain.
+#[test]
+fn fails_creating_invoice_request_for_unsupported_chain() {
+       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);
+
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
+
+       let alice = &nodes[0];
+       let bob = &nodes[1];
+
+       let offer = alice.node
+               .create_offer_builder("coffee".to_string()).unwrap()
+               .clear_chains()
+               .chain(Network::Signet)
+               .build().unwrap();
+
+       let payment_id = PaymentId([1; 32]);
+       match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
+               Ok(_) => panic!("Expected error"),
+               Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
+       }
+}
+
 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 /// the node's id.
 #[test]

diff --git a/lightning/src/offers/offer.rs b/lightning/src/offers/offer.rs
index e9e35836a96e2bec19b5bbe73c390ad78481e4bf..bf5e50deb77b8c290c1385f3459b76fb17bfbd6d 100644 (file)
--- a/lightning/src/offers/offer.rs
+++ b/lightning/src/offers/offer.rs
@@ -390,6 +390,12 @@ macro_rules! offer_builder_test_methods { (
                $return_value
        }
 
+       #[cfg_attr(c_bindings, allow(dead_code))]
+       pub(crate) fn clear_chains($($self_mut)* $self: $self_type) -> $return_type {
+               $self.offer.chains = None;
+               $return_value
+       }
+
        #[cfg_attr(c_bindings, allow(dead_code))]
        pub(crate) fn clear_paths($($self_mut)* $self: $self_type) -> $return_type {
                $self.offer.paths = None;