1 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
2 //! nodes for functional tests.
6 use chain::chaininterface::ChainListener;
7 use chain::transaction::OutPoint;
8 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
9 use ln::channelmonitor::ChannelMonitor;
10 use routing::router::{Route, get_route};
11 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
12 use ln::features::InitFeatures;
14 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
15 use util::enforcing_trait_impls::EnforcingChannelKeys;
17 use util::test_utils::TestChainMonitor;
18 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
19 use util::errors::APIError;
20 use util::config::UserConfig;
21 use util::ser::{ReadableArgs, Writeable, Readable};
23 use bitcoin::util::hash::BitcoinHash;
24 use bitcoin::blockdata::block::{Block, BlockHeader};
25 use bitcoin::blockdata::transaction::{Transaction, TxOut};
26 use bitcoin::network::constants::Network;
28 use bitcoin::hashes::sha256::Hash as Sha256;
29 use bitcoin::hashes::Hash;
30 use bitcoin::hash_types::BlockHash;
32 use bitcoin::secp256k1::key::PublicKey;
34 use std::cell::RefCell;
38 use std::collections::HashMap;
40 pub const CHAN_CONFIRM_DEPTH: u32 = 100;
42 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
43 let dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
44 let dummy_tx_count = tx.version as usize;
45 let mut block = Block {
46 header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
47 txdata: vec![dummy_tx; dummy_tx_count],
49 block.txdata.push(tx.clone());
50 connect_block(node, &block, 1);
51 for i in 2..CHAN_CONFIRM_DEPTH {
53 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
56 connect_block(node, &block, i);
60 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
61 let mut block = Block {
62 header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
65 connect_block(node, &block, height + 1);
66 for i in 2..depth + 1 {
68 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
71 connect_block(node, &block, height + i);
73 block.header.bitcoin_hash()
76 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, height: u32) {
77 use chain::WatchEventProvider;
79 let watch_events = node.chain_monitor.chain_monitor.release_pending_watch_events();
80 process_chain_watch_events(&watch_events);
82 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
84 node.chain_monitor.chain_monitor.block_connected(&block.header, &txdata, height);
86 let watch_events = node.chain_monitor.chain_monitor.release_pending_watch_events();
87 process_chain_watch_events(&watch_events);
89 if watch_events.is_empty() {
94 node.node.block_connected(&block.header, &txdata, height);
97 fn process_chain_watch_events(_events: &Vec<chain::WatchEvent>) {}
99 pub fn disconnect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, header: &BlockHeader, height: u32) {
100 node.chain_monitor.chain_monitor.block_disconnected(header, height);
101 node.node.block_disconnected(header, height);
104 pub struct TestChanMonCfg {
105 pub tx_broadcaster: test_utils::TestBroadcaster,
106 pub fee_estimator: test_utils::TestFeeEstimator,
107 pub chain_source: test_utils::TestChainSource,
108 pub logger: test_utils::TestLogger,
111 pub struct NodeCfg<'a> {
112 pub chain_source: &'a test_utils::TestChainSource,
113 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
114 pub fee_estimator: &'a test_utils::TestFeeEstimator,
115 pub chain_monitor: test_utils::TestChainMonitor<'a>,
116 pub keys_manager: test_utils::TestKeysInterface,
117 pub logger: &'a test_utils::TestLogger,
118 pub node_seed: [u8; 32],
121 pub struct Node<'a, 'b: 'a, 'c: 'b> {
122 pub chain_source: &'c test_utils::TestChainSource,
123 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
124 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
125 pub keys_manager: &'b test_utils::TestKeysInterface,
126 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
127 pub net_graph_msg_handler: NetGraphMsgHandler<&'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
128 pub node_seed: [u8; 32],
129 pub network_payment_count: Rc<RefCell<u8>>,
130 pub network_chan_count: Rc<RefCell<u32>>,
131 pub logger: &'c test_utils::TestLogger,
134 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
136 if !::std::thread::panicking() {
137 // Check that we processed all pending events
138 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
139 assert!(self.node.get_and_clear_pending_events().is_empty());
140 assert!(self.chain_monitor.added_monitors.lock().unwrap().is_empty());
142 // Check that if we serialize the Router, we can deserialize it again.
144 let mut w = test_utils::TestVecWriter(Vec::new());
145 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
146 network_graph_ser.write(&mut w).unwrap();
147 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
148 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
149 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
150 Some(self.chain_source), self.logger, network_graph_deser
152 let mut chan_progress = 0;
154 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
155 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
156 assert!(orig_announcements == deserialized_announcements);
157 chan_progress = match orig_announcements.last() {
158 Some(announcement) => announcement.0.contents.short_channel_id + 1,
162 let mut node_progress = None;
164 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
165 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
166 assert!(orig_announcements == deserialized_announcements);
167 node_progress = match orig_announcements.last() {
168 Some(announcement) => Some(announcement.contents.node_id),
174 // Check that if we serialize and then deserialize all our channel monitors we get the
175 // same set of outputs to watch for on chain as we have now. Note that if we write
176 // tests that fully close channels and remove the monitors at some point this may break.
177 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
178 let mut deserialized_monitors = Vec::new();
180 let old_monitors = self.chain_monitor.chain_monitor.monitors.lock().unwrap();
181 for (_, old_monitor) in old_monitors.iter() {
182 let mut w = test_utils::TestVecWriter(Vec::new());
183 old_monitor.write_for_disk(&mut w).unwrap();
184 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
185 &mut ::std::io::Cursor::new(&w.0)).unwrap();
186 deserialized_monitors.push(deserialized_monitor);
190 // Before using all the new monitors to check the watch outpoints, use the full set of
191 // them to ensure we can write and reload our ChannelManager.
193 let mut channel_monitors = HashMap::new();
194 for monitor in deserialized_monitors.iter_mut() {
195 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
198 let mut w = test_utils::TestVecWriter(Vec::new());
199 self.node.write(&mut w).unwrap();
200 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
201 default_config: UserConfig::default(),
202 keys_manager: self.keys_manager,
203 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
204 chain_monitor: self.chain_monitor,
205 tx_broadcaster: self.tx_broadcaster.clone(),
206 logger: &test_utils::TestLogger::new(),
207 channel_monitors: &mut channel_monitors,
211 let channel_monitor = test_utils::TestChainMonitor::new(self.tx_broadcaster.clone(), &self.logger, &feeest);
212 for deserialized_monitor in deserialized_monitors.drain(..) {
213 if let Err(_) = channel_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
221 pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
222 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
225 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) {
226 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);
227 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
228 (announcement, as_update, bs_update, channel_id, tx)
231 macro_rules! get_revoke_commit_msgs {
232 ($node: expr, $node_id: expr) => {
234 let events = $node.node.get_and_clear_pending_msg_events();
235 assert_eq!(events.len(), 2);
237 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
238 assert_eq!(*node_id, $node_id);
241 _ => panic!("Unexpected event"),
243 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
244 assert_eq!(*node_id, $node_id);
245 assert!(updates.update_add_htlcs.is_empty());
246 assert!(updates.update_fulfill_htlcs.is_empty());
247 assert!(updates.update_fail_htlcs.is_empty());
248 assert!(updates.update_fail_malformed_htlcs.is_empty());
249 assert!(updates.update_fee.is_none());
250 updates.commitment_signed.clone()
252 _ => panic!("Unexpected event"),
258 macro_rules! get_event_msg {
259 ($node: expr, $event_type: path, $node_id: expr) => {
261 let events = $node.node.get_and_clear_pending_msg_events();
262 assert_eq!(events.len(), 1);
264 $event_type { ref node_id, ref msg } => {
265 assert_eq!(*node_id, $node_id);
268 _ => panic!("Unexpected event"),
274 macro_rules! get_htlc_update_msgs {
275 ($node: expr, $node_id: expr) => {
277 let events = $node.node.get_and_clear_pending_msg_events();
278 assert_eq!(events.len(), 1);
280 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
281 assert_eq!(*node_id, $node_id);
284 _ => panic!("Unexpected event"),
290 macro_rules! get_feerate {
291 ($node: expr, $channel_id: expr) => {
293 let chan_lock = $node.node.channel_state.lock().unwrap();
294 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
300 macro_rules! get_local_commitment_txn {
301 ($node: expr, $channel_id: expr) => {
303 let mut monitors = $node.chain_monitor.chain_monitor.monitors.lock().unwrap();
304 let mut commitment_txn = None;
305 for (funding_txo, monitor) in monitors.iter_mut() {
306 if funding_txo.to_channel_id() == $channel_id {
307 commitment_txn = Some(monitor.unsafe_get_latest_local_commitment_txn(&$node.logger));
311 commitment_txn.unwrap()
316 macro_rules! unwrap_send_err {
317 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
319 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
320 assert_eq!(fails.len(), 1);
326 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
327 assert_eq!(fails.len(), 1);
329 Err($type) => { $check },
338 macro_rules! check_added_monitors {
339 ($node: expr, $count: expr) => {
341 let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
342 assert_eq!(added_monitors.len(), $count);
343 added_monitors.clear();
348 pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_chan_value: u64, expected_user_chan_id: u64) -> ([u8; 32], Transaction, OutPoint) {
349 let chan_id = *node.network_chan_count.borrow();
351 let events = node.node.get_and_clear_pending_events();
352 assert_eq!(events.len(), 1);
354 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
355 assert_eq!(*channel_value_satoshis, expected_chan_value);
356 assert_eq!(user_channel_id, expected_user_chan_id);
358 let tx = Transaction { version: chan_id as u32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
359 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
361 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
362 (*temporary_channel_id, tx, funding_outpoint)
364 _ => panic!("Unexpected event"),
368 pub fn create_chan_between_nodes_with_value_init<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> Transaction {
369 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
370 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id()));
371 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id()));
373 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
375 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
376 check_added_monitors!(node_a, 0);
378 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id()));
380 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
381 assert_eq!(added_monitors.len(), 1);
382 assert_eq!(added_monitors[0].0, funding_output);
383 added_monitors.clear();
386 node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id()));
388 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
389 assert_eq!(added_monitors.len(), 1);
390 assert_eq!(added_monitors[0].0, funding_output);
391 added_monitors.clear();
394 let events_4 = node_a.node.get_and_clear_pending_events();
395 assert_eq!(events_4.len(), 1);
397 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
398 assert_eq!(user_channel_id, 42);
399 assert_eq!(*funding_txo, funding_output);
401 _ => panic!("Unexpected event"),
407 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) {
408 confirm_transaction(node_conf, tx);
409 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()));
412 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]) {
414 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
415 assert_eq!(events_6.len(), 2);
416 ((match events_6[0] {
417 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
418 channel_id = msg.channel_id.clone();
419 assert_eq!(*node_id, node_recv.node.get_our_node_id());
422 _ => panic!("Unexpected event"),
423 }, match events_6[1] {
424 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
425 assert_eq!(*node_id, node_recv.node.get_our_node_id());
428 _ => panic!("Unexpected event"),
432 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]) {
433 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
434 confirm_transaction(node_a, tx);
435 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
438 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) {
439 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
440 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
444 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) {
445 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
446 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
447 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
449 let events_7 = node_b.node.get_and_clear_pending_msg_events();
450 assert_eq!(events_7.len(), 1);
451 let (announcement, bs_update) = match events_7[0] {
452 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
455 _ => panic!("Unexpected event"),
458 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
459 let events_8 = node_a.node.get_and_clear_pending_msg_events();
460 assert_eq!(events_8.len(), 1);
461 let as_update = match events_8[0] {
462 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
463 assert!(*announcement == *msg);
464 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
465 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
468 _ => panic!("Unexpected event"),
471 *node_a.network_chan_count.borrow_mut() += 1;
473 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
476 pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
477 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
480 pub fn create_announced_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::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
481 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
483 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
484 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
485 assert_eq!(a_events.len(), 1);
486 let a_node_announcement = match a_events[0] {
487 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
490 _ => panic!("Unexpected event"),
493 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
494 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
495 assert_eq!(b_events.len(), 1);
496 let b_node_announcement = match b_events[0] {
497 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
500 _ => panic!("Unexpected event"),
504 assert!(node.net_graph_msg_handler.handle_channel_announcement(&chan_announcement.0).unwrap());
505 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.1).unwrap();
506 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.2).unwrap();
507 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
508 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
510 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
513 macro_rules! check_spends {
514 ($tx: expr, $($spends_txn: expr),*) => {
516 $tx.verify(|out_point| {
518 if out_point.txid == $spends_txn.txid() {
519 return $spends_txn.output.get(out_point.vout as usize).cloned()
528 macro_rules! get_closing_signed_broadcast {
529 ($node: expr, $dest_pubkey: expr) => {
531 let events = $node.get_and_clear_pending_msg_events();
532 assert!(events.len() == 1 || events.len() == 2);
533 (match events[events.len() - 1] {
534 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
535 assert_eq!(msg.contents.flags & 2, 2);
538 _ => panic!("Unexpected event"),
539 }, if events.len() == 2 {
541 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
542 assert_eq!(*node_id, $dest_pubkey);
545 _ => panic!("Unexpected event"),
552 macro_rules! check_closed_broadcast {
553 ($node: expr, $with_error_msg: expr) => {{
554 let events = $node.node.get_and_clear_pending_msg_events();
555 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
557 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
558 assert_eq!(msg.contents.flags & 2, 2);
560 _ => panic!("Unexpected event"),
564 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
565 // TODO: Check node_id
568 _ => panic!("Unexpected event"),
574 pub fn close_channel<'a, 'b, 'c>(outbound_node: &Node<'a, 'b, 'c>, inbound_node: &Node<'a, 'b, 'c>, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) {
575 let (node_a, broadcaster_a, struct_a) = if close_inbound_first { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) } else { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) };
576 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
579 node_a.close_channel(channel_id).unwrap();
580 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
582 let events_1 = node_b.get_and_clear_pending_msg_events();
583 assert!(events_1.len() >= 1);
584 let shutdown_b = match events_1[0] {
585 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
586 assert_eq!(node_id, &node_a.get_our_node_id());
589 _ => panic!("Unexpected event"),
592 let closing_signed_b = if !close_inbound_first {
593 assert_eq!(events_1.len(), 1);
596 Some(match events_1[1] {
597 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
598 assert_eq!(node_id, &node_a.get_our_node_id());
601 _ => panic!("Unexpected event"),
605 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
606 let (as_update, bs_update) = if close_inbound_first {
607 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
608 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
609 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
610 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
611 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
613 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
614 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
615 assert!(none_b.is_none());
616 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
617 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
618 (as_update, bs_update)
620 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
622 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
623 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
624 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
625 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
627 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
628 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
629 assert!(none_a.is_none());
630 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
631 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
632 (as_update, bs_update)
634 assert_eq!(tx_a, tx_b);
635 check_spends!(tx_a, funding_tx);
637 (as_update, bs_update, tx_a)
640 pub struct SendEvent {
641 pub node_id: PublicKey,
642 pub msgs: Vec<msgs::UpdateAddHTLC>,
643 pub commitment_msg: msgs::CommitmentSigned,
646 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
647 assert!(updates.update_fulfill_htlcs.is_empty());
648 assert!(updates.update_fail_htlcs.is_empty());
649 assert!(updates.update_fail_malformed_htlcs.is_empty());
650 assert!(updates.update_fee.is_none());
651 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
654 pub fn from_event(event: MessageSendEvent) -> SendEvent {
656 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
657 _ => panic!("Unexpected event type!"),
661 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
662 let mut events = node.node.get_and_clear_pending_msg_events();
663 assert_eq!(events.len(), 1);
664 SendEvent::from_event(events.pop().unwrap())
668 macro_rules! commitment_signed_dance {
669 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
671 check_added_monitors!($node_a, 0);
672 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
673 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
674 check_added_monitors!($node_a, 1);
675 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
678 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
680 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
681 check_added_monitors!($node_b, 0);
682 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
683 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
684 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
685 check_added_monitors!($node_b, 1);
686 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
687 let (bs_revoke_and_ack, extra_msg_option) = {
688 let events = $node_b.node.get_and_clear_pending_msg_events();
689 assert!(events.len() <= 2);
691 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
692 assert_eq!(*node_id, $node_a.node.get_our_node_id());
695 _ => panic!("Unexpected event"),
696 }, events.get(1).map(|e| e.clone()))
698 check_added_monitors!($node_b, 1);
700 assert!($node_a.node.get_and_clear_pending_events().is_empty());
701 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
703 (extra_msg_option, bs_revoke_and_ack)
706 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
708 check_added_monitors!($node_a, 0);
709 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
710 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
711 check_added_monitors!($node_a, 1);
712 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
713 assert!(extra_msg_option.is_none());
717 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
719 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
720 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
721 check_added_monitors!($node_a, 1);
725 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
727 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
730 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
732 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
734 expect_pending_htlcs_forwardable!($node_a);
735 check_added_monitors!($node_a, 1);
737 let channel_state = $node_a.node.channel_state.lock().unwrap();
738 assert_eq!(channel_state.pending_msg_events.len(), 1);
739 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
740 assert_ne!(*node_id, $node_b.node.get_our_node_id());
741 } else { panic!("Unexpected event"); }
743 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
749 macro_rules! get_payment_preimage_hash {
752 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
753 *$node.network_payment_count.borrow_mut() += 1;
754 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
755 (payment_preimage, payment_hash)
760 macro_rules! expect_pending_htlcs_forwardable_ignore {
762 let events = $node.node.get_and_clear_pending_events();
763 assert_eq!(events.len(), 1);
765 Event::PendingHTLCsForwardable { .. } => { },
766 _ => panic!("Unexpected event"),
771 macro_rules! expect_pending_htlcs_forwardable {
773 expect_pending_htlcs_forwardable_ignore!($node);
774 $node.node.process_pending_htlc_forwards();
778 macro_rules! expect_payment_received {
779 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
780 let events = $node.node.get_and_clear_pending_events();
781 assert_eq!(events.len(), 1);
783 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
784 assert_eq!($expected_payment_hash, *payment_hash);
785 assert_eq!(None, *payment_secret);
786 assert_eq!($expected_recv_value, amt);
788 _ => panic!("Unexpected event"),
793 macro_rules! expect_payment_sent {
794 ($node: expr, $expected_payment_preimage: expr) => {
795 let events = $node.node.get_and_clear_pending_events();
796 assert_eq!(events.len(), 1);
798 Event::PaymentSent { ref payment_preimage } => {
799 assert_eq!($expected_payment_preimage, *payment_preimage);
801 _ => panic!("Unexpected event"),
806 macro_rules! expect_payment_failed {
807 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
808 let events = $node.node.get_and_clear_pending_events();
809 assert_eq!(events.len(), 1);
811 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
812 assert_eq!(*payment_hash, $expected_payment_hash);
813 assert_eq!(rejected_by_dest, $rejected_by_dest);
814 assert!(error_code.is_some());
815 assert!(error_data.is_some());
817 assert_eq!(error_code.unwrap(), $expected_error_code);
818 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
821 _ => panic!("Unexpected event"),
826 pub fn send_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_paths: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>) {
827 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
828 check_added_monitors!(origin_node, expected_paths.len());
829 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
832 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) {
833 let mut payment_event = SendEvent::from_event(ev);
834 let mut prev_node = origin_node;
836 for (idx, &node) in expected_path.iter().enumerate() {
837 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
839 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
840 check_added_monitors!(node, 0);
841 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
843 expect_pending_htlcs_forwardable!(node);
845 if idx == expected_path.len() - 1 {
846 let events_2 = node.node.get_and_clear_pending_events();
847 if payment_received_expected {
848 assert_eq!(events_2.len(), 1);
850 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
851 assert_eq!(our_payment_hash, *payment_hash);
852 assert_eq!(our_payment_secret, *payment_secret);
853 assert_eq!(amt, recv_value);
855 _ => panic!("Unexpected event"),
858 assert!(events_2.is_empty());
861 let mut events_2 = node.node.get_and_clear_pending_msg_events();
862 assert_eq!(events_2.len(), 1);
863 check_added_monitors!(node, 1);
864 payment_event = SendEvent::from_event(events_2.remove(0));
865 assert_eq!(payment_event.msgs.len(), 1);
872 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: Option<PaymentSecret>) {
873 let mut events = origin_node.node.get_and_clear_pending_msg_events();
874 assert_eq!(events.len(), expected_route.len());
875 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
876 // Once we've gotten through all the HTLCs, the last one should result in a
877 // PaymentReceived (but each previous one should not!), .
878 let expect_payment = path_idx == expected_route.len() - 1;
879 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
883 pub fn send_along_route_with_hash<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash) {
884 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
887 pub fn send_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
888 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
889 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
890 (our_payment_preimage, our_payment_hash)
893 pub fn claim_payment_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage, our_payment_secret: Option<PaymentSecret>, expected_amount: u64) {
894 for path in expected_paths.iter() {
895 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
897 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
898 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
900 macro_rules! msgs_from_ev {
903 &MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
904 assert!(update_add_htlcs.is_empty());
905 assert_eq!(update_fulfill_htlcs.len(), 1);
906 assert!(update_fail_htlcs.is_empty());
907 assert!(update_fail_malformed_htlcs.is_empty());
908 assert!(update_fee.is_none());
909 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
911 _ => panic!("Unexpected event"),
915 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
916 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
917 assert_eq!(events.len(), expected_paths.len());
918 for ev in events.iter() {
919 per_path_msgs.push(msgs_from_ev!(ev));
922 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
923 let mut next_msgs = Some(path_msgs);
924 let mut expected_next_node = next_hop;
926 macro_rules! last_update_fulfill_dance {
927 ($node: expr, $prev_node: expr) => {
929 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
930 check_added_monitors!($node, 0);
931 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
932 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
936 macro_rules! mid_update_fulfill_dance {
937 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
939 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
940 check_added_monitors!($node, 1);
941 let new_next_msgs = if $new_msgs {
942 let events = $node.node.get_and_clear_pending_msg_events();
943 assert_eq!(events.len(), 1);
944 let (res, nexthop) = msgs_from_ev!(&events[0]);
945 expected_next_node = nexthop;
948 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
951 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
952 next_msgs = new_next_msgs;
957 let mut prev_node = expected_route.last().unwrap();
958 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
959 assert_eq!(expected_next_node, node.node.get_our_node_id());
960 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
961 if next_msgs.is_some() {
962 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
964 assert!(!update_next_msgs);
965 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
967 if !skip_last && idx == expected_route.len() - 1 {
968 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
975 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
976 expect_payment_sent!(origin_node, our_payment_preimage);
981 pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], skip_last: bool, our_payment_preimage: PaymentPreimage, expected_amount: u64) {
982 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
985 pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage, expected_amount: u64) {
986 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
989 pub const TEST_FINAL_CLTV: u32 = 32;
991 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
992 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
993 let logger = test_utils::TestLogger::new();
994 let route = get_route(&origin_node.node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
995 assert_eq!(route.paths.len(), 1);
996 assert_eq!(route.paths[0].len(), expected_route.len());
997 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
998 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1001 send_along_route(origin_node, route, expected_route, recv_value)
1004 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
1005 let logger = test_utils::TestLogger::new();
1006 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
1007 let route = get_route(&origin_node.node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1008 assert_eq!(route.paths.len(), 1);
1009 assert_eq!(route.paths[0].len(), expected_route.len());
1010 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1011 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1014 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
1015 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1016 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1019 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
1020 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1021 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
1024 pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], skip_last: bool, our_payment_hash: PaymentHash) {
1025 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
1026 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1027 check_added_monitors!(expected_route.last().unwrap(), 1);
1029 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1030 macro_rules! update_fail_dance {
1031 ($node: expr, $prev_node: expr, $last_node: expr) => {
1033 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1034 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1035 if skip_last && $last_node {
1036 expect_pending_htlcs_forwardable!($node);
1042 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1043 let mut prev_node = expected_route.last().unwrap();
1044 for (idx, node) in expected_route.iter().rev().enumerate() {
1045 assert_eq!(expected_next_node, node.node.get_our_node_id());
1046 if next_msgs.is_some() {
1047 // We may be the "last node" for the purpose of the commitment dance if we're
1048 // skipping the last node (implying it is disconnected) and we're the
1049 // second-to-last node!
1050 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1053 let events = node.node.get_and_clear_pending_msg_events();
1054 if !skip_last || idx != expected_route.len() - 1 {
1055 assert_eq!(events.len(), 1);
1057 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
1058 assert!(update_add_htlcs.is_empty());
1059 assert!(update_fulfill_htlcs.is_empty());
1060 assert_eq!(update_fail_htlcs.len(), 1);
1061 assert!(update_fail_malformed_htlcs.is_empty());
1062 assert!(update_fee.is_none());
1063 expected_next_node = node_id.clone();
1064 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1066 _ => panic!("Unexpected event"),
1069 assert!(events.is_empty());
1071 if !skip_last && idx == expected_route.len() - 1 {
1072 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1079 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1081 let events = origin_node.node.get_and_clear_pending_events();
1082 assert_eq!(events.len(), 1);
1084 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1085 assert_eq!(payment_hash, our_payment_hash);
1086 assert!(rejected_by_dest);
1088 _ => panic!("Unexpected event"),
1093 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1094 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1097 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1098 let mut chan_mon_cfgs = Vec::new();
1099 for i in 0..node_count {
1100 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1101 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1102 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
1103 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1104 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_source, logger });
1110 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1111 let mut nodes = Vec::new();
1113 for i in 0..node_count {
1114 let seed = [i as u8; 32];
1115 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1116 let chain_monitor = test_utils::TestChainMonitor::new(&chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator);
1117 nodes.push(NodeCfg { chain_source: &chanmon_cfgs[i].chain_source, logger: &chanmon_cfgs[i].logger, tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster, fee_estimator: &chanmon_cfgs[i].fee_estimator, chain_monitor, keys_manager, node_seed: seed });
1123 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingChannelKeys, &'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
1124 let mut chanmgrs = Vec::new();
1125 for i in 0..node_count {
1126 let mut default_config = UserConfig::default();
1127 default_config.channel_options.announced_channel = true;
1128 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1129 default_config.own_channel_config.our_htlc_minimum_msat = 1000; // sanitization being done by the sender, to exerce receiver logic we need to lift of limit
1130 let node = ChannelManager::new(Network::Testnet, cfgs[i].fee_estimator, &cfgs[i].chain_monitor, cfgs[i].tx_broadcaster, cfgs[i].logger.clone(), &cfgs[i].keys_manager, if node_config[i].is_some() { node_config[i].clone().unwrap() } else { default_config }, 0);
1131 chanmgrs.push(node);
1137 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
1138 let mut nodes = Vec::new();
1139 let chan_count = Rc::new(RefCell::new(0));
1140 let payment_count = Rc::new(RefCell::new(0));
1142 for i in 0..node_count {
1143 let net_graph_msg_handler = NetGraphMsgHandler::new(None, cfgs[i].logger);
1144 nodes.push(Node{ chain_source: cfgs[i].chain_source,
1145 tx_broadcaster: cfgs[i].tx_broadcaster, chain_monitor: &cfgs[i].chain_monitor,
1146 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1147 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1148 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1155 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1156 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1158 #[derive(PartialEq)]
1159 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1160 /// Tests that the given node has broadcast transactions for the given Channel
1162 /// First checks that the latest local commitment tx has been broadcast, unless an explicit
1163 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1164 /// broadcast and the revoked outputs were claimed.
1166 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1167 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1169 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1171 pub fn test_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, chan: &(msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction), commitment_tx: Option<Transaction>, has_htlc_tx: HTLCType) -> Vec<Transaction> {
1172 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1173 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1175 let mut res = Vec::with_capacity(2);
1176 node_txn.retain(|tx| {
1177 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1178 check_spends!(tx, chan.3);
1179 if commitment_tx.is_none() {
1180 res.push(tx.clone());
1185 if let Some(explicit_tx) = commitment_tx {
1186 res.push(explicit_tx.clone());
1189 assert_eq!(res.len(), 1);
1191 if has_htlc_tx != HTLCType::NONE {
1192 node_txn.retain(|tx| {
1193 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1194 check_spends!(tx, res[0]);
1195 if has_htlc_tx == HTLCType::TIMEOUT {
1196 assert!(tx.lock_time != 0);
1198 assert!(tx.lock_time == 0);
1200 res.push(tx.clone());
1204 assert!(res.len() == 2 || res.len() == 3);
1206 assert_eq!(res[1], res[2]);
1210 assert!(node_txn.is_empty());
1214 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1215 /// HTLC transaction.
1216 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1217 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1218 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1219 // for revoked htlc outputs
1220 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1221 node_txn.retain(|tx| {
1222 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1223 check_spends!(tx, revoked_tx);
1227 node_txn.retain(|tx| {
1228 check_spends!(tx, commitment_revoked_tx);
1231 assert!(node_txn.is_empty());
1234 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1235 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1237 assert!(node_txn.len() >= 1);
1238 assert_eq!(node_txn[0].input.len(), 1);
1239 let mut found_prev = false;
1241 for tx in prev_txn {
1242 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1243 check_spends!(node_txn[0], tx);
1244 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1245 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1251 assert!(found_prev);
1253 let mut res = Vec::new();
1254 mem::swap(&mut *node_txn, &mut res);
1258 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1259 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1260 assert_eq!(events_1.len(), 1);
1261 let as_update = match events_1[0] {
1262 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1265 _ => panic!("Unexpected event"),
1268 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1269 assert_eq!(events_2.len(), 1);
1270 let bs_update = match events_2[0] {
1271 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1274 _ => panic!("Unexpected event"),
1278 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1279 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1283 macro_rules! get_channel_value_stat {
1284 ($node: expr, $channel_id: expr) => {{
1285 let chan_lock = $node.node.channel_state.lock().unwrap();
1286 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1287 chan.get_value_stat()
1291 macro_rules! get_chan_reestablish_msgs {
1292 ($src_node: expr, $dst_node: expr) => {
1294 let mut res = Vec::with_capacity(1);
1295 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1296 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1297 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1298 res.push(msg.clone());
1300 panic!("Unexpected event")
1308 macro_rules! handle_chan_reestablish_msgs {
1309 ($src_node: expr, $dst_node: expr) => {
1311 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1313 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1315 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1321 let mut revoke_and_ack = None;
1322 let mut commitment_update = None;
1323 let order = if let Some(ev) = msg_events.get(idx) {
1326 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1327 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1328 revoke_and_ack = Some(msg.clone());
1329 RAACommitmentOrder::RevokeAndACKFirst
1331 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1332 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1333 commitment_update = Some(updates.clone());
1334 RAACommitmentOrder::CommitmentFirst
1336 _ => panic!("Unexpected event"),
1339 RAACommitmentOrder::CommitmentFirst
1342 if let Some(ev) = msg_events.get(idx) {
1344 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1345 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1346 assert!(revoke_and_ack.is_none());
1347 revoke_and_ack = Some(msg.clone());
1349 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1350 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1351 assert!(commitment_update.is_none());
1352 commitment_update = Some(updates.clone());
1354 _ => panic!("Unexpected event"),
1358 (funding_locked, revoke_and_ack, commitment_update, order)
1363 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1364 /// for claims/fails they are separated out.
1365 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_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
1366 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1367 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1368 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1369 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1371 if send_funding_locked.0 {
1372 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1374 for reestablish in reestablish_1.iter() {
1375 assert_eq!(reestablish.next_remote_commitment_number, 0);
1378 if send_funding_locked.1 {
1379 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1381 for reestablish in reestablish_2.iter() {
1382 assert_eq!(reestablish.next_remote_commitment_number, 0);
1385 if send_funding_locked.0 || send_funding_locked.1 {
1386 // If we expect any funding_locked's, both sides better have set
1387 // next_local_commitment_number to 1
1388 for reestablish in reestablish_1.iter() {
1389 assert_eq!(reestablish.next_local_commitment_number, 1);
1391 for reestablish in reestablish_2.iter() {
1392 assert_eq!(reestablish.next_local_commitment_number, 1);
1396 let mut resp_1 = Vec::new();
1397 for msg in reestablish_1 {
1398 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1399 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1401 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1402 check_added_monitors!(node_b, 1);
1404 check_added_monitors!(node_b, 0);
1407 let mut resp_2 = Vec::new();
1408 for msg in reestablish_2 {
1409 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1410 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1412 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1413 check_added_monitors!(node_a, 1);
1415 check_added_monitors!(node_a, 0);
1418 // We don't yet support both needing updates, as that would require a different commitment dance:
1419 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1420 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1422 for chan_msgs in resp_1.drain(..) {
1423 if send_funding_locked.0 {
1424 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1425 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1426 if !announcement_event.is_empty() {
1427 assert_eq!(announcement_event.len(), 1);
1428 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1429 //TODO: Test announcement_sigs re-sending
1430 } else { panic!("Unexpected event!"); }
1433 assert!(chan_msgs.0.is_none());
1436 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1437 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1438 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1439 check_added_monitors!(node_a, 1);
1441 assert!(chan_msgs.1.is_none());
1443 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1444 let commitment_update = chan_msgs.2.unwrap();
1445 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1446 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1448 assert!(commitment_update.update_add_htlcs.is_empty());
1450 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1451 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1452 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1453 for update_add in commitment_update.update_add_htlcs {
1454 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1456 for update_fulfill in commitment_update.update_fulfill_htlcs {
1457 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1459 for update_fail in commitment_update.update_fail_htlcs {
1460 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1463 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1464 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1466 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1467 check_added_monitors!(node_a, 1);
1468 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1469 // No commitment_signed so get_event_msg's assert(len == 1) passes
1470 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1471 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1472 check_added_monitors!(node_b, 1);
1475 assert!(chan_msgs.2.is_none());
1479 for chan_msgs in resp_2.drain(..) {
1480 if send_funding_locked.1 {
1481 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1482 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1483 if !announcement_event.is_empty() {
1484 assert_eq!(announcement_event.len(), 1);
1485 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1486 //TODO: Test announcement_sigs re-sending
1487 } else { panic!("Unexpected event!"); }
1490 assert!(chan_msgs.0.is_none());
1493 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1494 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1495 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1496 check_added_monitors!(node_b, 1);
1498 assert!(chan_msgs.1.is_none());
1500 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1501 let commitment_update = chan_msgs.2.unwrap();
1502 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1503 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1505 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1506 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1507 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1508 for update_add in commitment_update.update_add_htlcs {
1509 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1511 for update_fulfill in commitment_update.update_fulfill_htlcs {
1512 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1514 for update_fail in commitment_update.update_fail_htlcs {
1515 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1518 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1519 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1521 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1522 check_added_monitors!(node_b, 1);
1523 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1524 // No commitment_signed so get_event_msg's assert(len == 1) passes
1525 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1526 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1527 check_added_monitors!(node_a, 1);
1530 assert!(chan_msgs.2.is_none());