use ln::msgs;
use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
use util::enforcing_trait_impls::EnforcingSigner;
+use util::scid_utils;
use util::test_utils;
use util::test_utils::{panicking, TestChainMonitor};
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
use bitcoin::network::constants::Network;
use bitcoin::hash_types::BlockHash;
+use bitcoin::hashes::sha256::Hash as Sha256;
+use bitcoin::hashes::Hash as _;
use bitcoin::secp256k1::PublicKey;
/// Mine the given transaction in the next block and then mine CHAN_CONFIRM_DEPTH - 1 blocks on
/// top, giving the given transaction CHAN_CONFIRM_DEPTH confirmations.
-pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
- confirm_transaction_at(node, tx, node.best_block_info().1 + 1);
+///
+/// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
+/// output is the 1st output in the transaction.
+pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> u64 {
+ let scid = confirm_transaction_at(node, tx, node.best_block_info().1 + 1);
connect_blocks(node, CHAN_CONFIRM_DEPTH - 1);
+ scid
}
/// Mine a signle block containing the given transaction
pub fn mine_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
}
/// Mine the given transaction at the given height, mining blocks as required to build to that
/// height
-pub fn confirm_transaction_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) {
+///
+/// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
+/// output is the 1st output in the transaction.
+pub fn confirm_transaction_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) -> u64 {
let first_connect_height = node.best_block_info().1 + 1;
assert!(first_connect_height <= conf_height);
if conf_height > first_connect_height {
}
block.txdata.push(tx.clone());
connect_block(node, &block);
+ scid_utils::scid_from_parts(conf_height as u64, block.txdata.len() as u64 - 1, 0).unwrap()
}
/// The possible ways we may notify a ChannelManager of a new block
}
pub fn create_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
- let (funding_locked, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
- let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
+ let (channel_ready, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
+ let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &channel_ready);
(announcement, as_update, bs_update, channel_id, tx)
}
pub fn create_chan_between_nodes_with_value_confirm_first<'a, 'b, 'c, 'd>(node_recv: &'a Node<'b, 'c, 'c>, node_conf: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) {
confirm_transaction_at(node_conf, tx, conf_height);
connect_blocks(node_conf, CHAN_CONFIRM_DEPTH - 1);
- node_recv.node.handle_funding_locked(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendFundingLocked, node_recv.node.get_our_node_id()));
+ node_recv.node.handle_channel_ready(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendChannelReady, node_recv.node.get_our_node_id()));
}
-pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
+pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
let channel_id;
let events_6 = node_conf.node.get_and_clear_pending_msg_events();
assert_eq!(events_6.len(), 3);
1
} else { panic!("Unexpected event: {:?}", events_6[1]); };
((match events_6[0] {
- MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
+ MessageSendEvent::SendChannelReady { ref node_id, ref msg } => {
channel_id = msg.channel_id.clone();
assert_eq!(*node_id, node_recv.node.get_our_node_id());
msg.clone()
}), channel_id)
}
-pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
+pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
let conf_height = core::cmp::max(node_a.best_block_info().1 + 1, node_b.best_block_info().1 + 1);
create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx, conf_height);
confirm_transaction_at(node_a, tx, conf_height);
create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
}
-pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
+pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
(msgs, chan_id, tx)
}
-pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, as_funding_msgs: &(msgs::FundingLocked, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
- node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
+pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, as_funding_msgs: &(msgs::ChannelReady, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
+ node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
(chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
}
-pub fn create_unannounced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::FundingLocked, Transaction) {
+pub fn create_unannounced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelReady, Transaction) {
let mut no_announce_cfg = test_default_channel_config();
no_announce_cfg.channel_options.announced_channel = false;
nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, Some(no_announce_cfg)).unwrap();
connect_blocks(&nodes[a], CHAN_CONFIRM_DEPTH - 1);
confirm_transaction_at(&nodes[b], &tx, conf_height);
connect_blocks(&nodes[b], CHAN_CONFIRM_DEPTH - 1);
- let as_funding_locked = get_event_msg!(nodes[a], MessageSendEvent::SendFundingLocked, nodes[b].node.get_our_node_id());
- nodes[a].node.handle_funding_locked(&nodes[b].node.get_our_node_id(), &get_event_msg!(nodes[b], MessageSendEvent::SendFundingLocked, nodes[a].node.get_our_node_id()));
+ let as_channel_ready = get_event_msg!(nodes[a], MessageSendEvent::SendChannelReady, nodes[b].node.get_our_node_id());
+ nodes[a].node.handle_channel_ready(&nodes[b].node.get_our_node_id(), &get_event_msg!(nodes[b], MessageSendEvent::SendChannelReady, nodes[a].node.get_our_node_id()));
let as_update = get_event_msg!(nodes[a], MessageSendEvent::SendChannelUpdate, nodes[b].node.get_our_node_id());
- nodes[b].node.handle_funding_locked(&nodes[a].node.get_our_node_id(), &as_funding_locked);
+ nodes[b].node.handle_channel_ready(&nodes[a].node.get_our_node_id(), &as_channel_ready);
let bs_update = get_event_msg!(nodes[b], MessageSendEvent::SendChannelUpdate, nodes[a].node.get_our_node_id());
nodes[a].node.handle_channel_update(&nodes[b].node.get_our_node_id(), &bs_update);
let mut found_a = false;
for chan in nodes[a].node.list_usable_channels() {
- if chan.channel_id == as_funding_locked.channel_id {
+ if chan.channel_id == as_channel_ready.channel_id {
assert!(!found_a);
found_a = true;
assert!(!chan.is_public);
let mut found_b = false;
for chan in nodes[b].node.list_usable_channels() {
- if chan.channel_id == as_funding_locked.channel_id {
+ if chan.channel_id == as_channel_ready.channel_id {
assert!(!found_b);
found_b = true;
assert!(!chan.is_public);
}
assert!(found_b);
- (as_funding_locked, tx)
+ (as_channel_ready, tx)
}
pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, ann: &msgs::ChannelAnnouncement, upd_1: &msgs::ChannelUpdate, upd_2: &msgs::ChannelUpdate) {
let events = $node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
- $crate::util::events::Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
+ $crate::util::events::Event::PaymentReceived { ref payment_hash, ref purpose, amount_msat } => {
assert_eq!($expected_payment_hash, *payment_hash);
- assert_eq!($expected_recv_value, amt);
+ assert_eq!($expected_recv_value, amount_msat);
match purpose {
$crate::util::events::PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
assert_eq!(&$expected_payment_preimage, payment_preimage);
}
}
+#[macro_export]
+#[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
+macro_rules! expect_payment_claimed {
+ ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
+ let events = $node.node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ $crate::util::events::Event::PaymentClaimed { ref payment_hash, amount_msat, .. } => {
+ assert_eq!($expected_payment_hash, *payment_hash);
+ assert_eq!($expected_recv_value, amount_msat);
+ },
+ _ => panic!("Unexpected event"),
+ }
+ }
+}
+
#[cfg(test)]
#[macro_export]
macro_rules! expect_payment_sent_without_paths {
payment_id
}
-pub fn pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_received_expected: bool, expected_preimage: Option<PaymentPreimage>) {
+pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_received_expected: bool, clear_recipient_events: bool, expected_preimage: Option<PaymentPreimage>) {
let mut payment_event = SendEvent::from_event(ev);
let mut prev_node = origin_node;
expect_pending_htlcs_forwardable!(node);
- if idx == expected_path.len() - 1 {
+ if idx == expected_path.len() - 1 && clear_recipient_events {
let events_2 = node.node.get_and_clear_pending_events();
if payment_received_expected {
assert_eq!(events_2.len(), 1);
match events_2[0] {
- Event::PaymentReceived { ref payment_hash, ref purpose, amt} => {
+ Event::PaymentReceived { ref payment_hash, ref purpose, amount_msat } => {
assert_eq!(our_payment_hash, *payment_hash);
match &purpose {
PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
assert!(our_payment_secret.is_none());
},
}
- assert_eq!(amt, recv_value);
+ assert_eq!(amount_msat, recv_value);
},
_ => panic!("Unexpected event"),
}
} else {
assert!(events_2.is_empty());
}
- } else {
+ } else if idx != expected_path.len() - 1 {
let mut events_2 = node.node.get_and_clear_pending_msg_events();
assert_eq!(events_2.len(), 1);
check_added_monitors!(node, 1);
}
}
+pub fn pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_received_expected: bool, expected_preimage: Option<PaymentPreimage>) {
+ do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_received_expected, true, expected_preimage);
+}
+
pub fn pass_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: PaymentSecret) {
let mut events = origin_node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), expected_route.len());
for path in expected_paths.iter() {
assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
}
- assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage));
+ expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
+
+ let claim_event = expected_paths[0].last().unwrap().node.get_and_clear_pending_events();
+ assert_eq!(claim_event.len(), 1);
+ match claim_event[0] {
+ Event::PaymentClaimed { purpose: PaymentPurpose::SpontaneousPayment(preimage), .. }|
+ Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { payment_preimage: Some(preimage), ..}, .. } =>
+ assert_eq!(preimage, our_payment_preimage),
+ Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { .. }, payment_hash, .. } =>
+ assert_eq!(&payment_hash.0, &Sha256::hash(&our_payment_preimage.0)[..]),
+ _ => panic!(),
+ }
+
check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
let mut expected_total_fee_msat = 0;
}
// Ensure that claim_funds is idempotent.
- assert!(!expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage));
+ expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!(expected_paths[0].last().unwrap(), 0);
claim_payment(&origin, expected_route, our_payment_preimage);
}
-pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths_slice: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
- let mut expected_paths: Vec<_> = expected_paths_slice.iter().collect();
+pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
for path in expected_paths.iter() {
assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
}
- assert!(expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash));
+ expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
expect_pending_htlcs_forwardable!(expected_paths[0].last().unwrap());
+
+ pass_failed_payment_back(origin_node, expected_paths, skip_last, our_payment_hash);
+}
+
+pub fn pass_failed_payment_back<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths_slice: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
+ let mut expected_paths: Vec<_> = expected_paths_slice.iter().collect();
check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
let mut per_path_msgs: Vec<((msgs::UpdateFailHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
}
// Ensure that fail_htlc_backwards is idempotent.
- assert!(!expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash));
+ expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_events().is_empty());
assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!(expected_paths[0].last().unwrap(), 0);
{
let msg_events = $src_node.node.get_and_clear_pending_msg_events();
let mut idx = 0;
- let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
+ let channel_ready = if let Some(&MessageSendEvent::SendChannelReady { ref node_id, ref msg }) = msg_events.get(0) {
idx += 1;
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
Some(msg.clone())
assert_eq!(msg_events.len(), idx);
- (funding_locked, revoke_and_ack, commitment_update, order)
+ (channel_ready, revoke_and_ack, commitment_update, order)
}
}
}
/// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
/// for claims/fails they are separated out.
-pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_funding_locked: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_htlc_fails: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
+pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_channel_ready: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_htlc_fails: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty(), remote_network_address: None });
let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty(), remote_network_address: None });
let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
- if send_funding_locked.0 {
- // If a expects a funding_locked, it better not think it has received a revoke_and_ack
+ if send_channel_ready.0 {
+ // If a expects a channel_ready, it better not think it has received a revoke_and_ack
// from b
for reestablish in reestablish_1.iter() {
assert_eq!(reestablish.next_remote_commitment_number, 0);
}
}
- if send_funding_locked.1 {
- // If b expects a funding_locked, it better not think it has received a revoke_and_ack
+ if send_channel_ready.1 {
+ // If b expects a channel_ready, it better not think it has received a revoke_and_ack
// from a
for reestablish in reestablish_2.iter() {
assert_eq!(reestablish.next_remote_commitment_number, 0);
}
}
- if send_funding_locked.0 || send_funding_locked.1 {
- // If we expect any funding_locked's, both sides better have set
+ if send_channel_ready.0 || send_channel_ready.1 {
+ // If we expect any channel_ready's, both sides better have set
// next_holder_commitment_number to 1
for reestablish in reestablish_1.iter() {
assert_eq!(reestablish.next_local_commitment_number, 1);
pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
for chan_msgs in resp_1.drain(..) {
- if send_funding_locked.0 {
- node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
+ if send_channel_ready.0 {
+ node_a.node.handle_channel_ready(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
let announcement_event = node_a.node.get_and_clear_pending_msg_events();
if !announcement_event.is_empty() {
assert_eq!(announcement_event.len(), 1);
}
for chan_msgs in resp_2.drain(..) {
- if send_funding_locked.1 {
- node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
+ if send_channel_ready.1 {
+ node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
let announcement_event = node_b.node.get_and_clear_pending_msg_events();
if !announcement_event.is_empty() {
assert_eq!(announcement_event.len(), 1);