Test ChannelManager::accept_inbound_channel errors

Author: dunxen

lightning/src/ln/channelmanager.rs

@@ -12557,6 +12557,39 @@ mod tests {
 		assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
 	}
 
+	#[test]
+	fn test_accept_inbound_channel_errors_queued() {
+		// For manually accepted inbound channels, tests that a close error is correctly handled
+		// and the channel fails for the initiator.
+		let mut config0 = test_default_channel_config();
+		let mut config1 = config0.clone();
+		config1.channel_handshake_limits.their_to_self_delay = 1000;
+		config1.manually_accept_inbound_channels = true;
+		config0.channel_handshake_config.our_to_self_delay = 2000;
+
+		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, &[Some(config0), Some(config1)]);
+		let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+		nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
+		let open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+
+		nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
+		let events = nodes[1].node.get_and_clear_pending_events();
+		match events[0] {
+			Event::OpenChannelRequest { temporary_channel_id, .. } => {
+				match nodes[1].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 23) {
+					Err(APIError::ChannelUnavailable { err: _ }) => (),
+					_ => panic!(),
+				}
+			}
+			_ => panic!("Unexpected event"),
+		}
+		assert_eq!(get_err_msg(&nodes[1], &nodes[0].node.get_our_node_id()).channel_id,
+			open_channel_msg.common_fields.temporary_channel_id);
+	}
+
 	#[test]
 	fn test_update_channel_config() {
 		let chanmon_cfg = create_chanmon_cfgs(2);