1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
11 //! nodes for functional tests.
13 use chain::chaininterface;
14 use chain::transaction::OutPoint;
15 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
16 use ln::channelmonitor::{ChannelMonitor, ManyChannelMonitor};
17 use routing::router::{Route, get_route};
18 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
19 use ln::features::InitFeatures;
21 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
22 use util::enforcing_trait_impls::EnforcingChannelKeys;
24 use util::test_utils::TestChannelMonitor;
25 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
26 use util::errors::APIError;
27 use util::config::UserConfig;
28 use util::ser::{ReadableArgs, Writeable, Readable};
30 use bitcoin::blockdata::block::{Block, BlockHeader};
31 use bitcoin::blockdata::transaction::{Transaction, TxOut};
32 use bitcoin::network::constants::Network;
34 use bitcoin::hashes::sha256::Hash as Sha256;
35 use bitcoin::hashes::Hash;
36 use bitcoin::hash_types::BlockHash;
38 use bitcoin::secp256k1::key::PublicKey;
40 use std::cell::RefCell;
44 use std::collections::HashMap;
46 pub const CHAN_CONFIRM_DEPTH: u32 = 100;
48 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
49 let notifier = &node.block_notifier;
50 let dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
51 let dummy_tx_count = tx.version as usize;
52 let mut block = Block {
53 header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
54 txdata: vec![dummy_tx; dummy_tx_count],
56 block.txdata.push(tx.clone());
57 notifier.block_connected(&block, 1);
58 for i in 2..CHAN_CONFIRM_DEPTH {
60 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
63 notifier.block_connected(&block, i);
67 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
68 let notifier = &node.block_notifier;
69 let mut block = Block {
70 header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
73 notifier.block_connected(&block, height + 1);
74 for i in 2..depth + 1 {
76 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
79 notifier.block_connected(&block, height + i);
81 block.header.block_hash()
84 pub struct TestChanMonCfg {
85 pub tx_broadcaster: test_utils::TestBroadcaster,
86 pub fee_estimator: test_utils::TestFeeEstimator,
87 pub chain_monitor: chaininterface::ChainWatchInterfaceUtil,
88 pub logger: test_utils::TestLogger,
91 pub struct NodeCfg<'a> {
92 pub chain_monitor: &'a chaininterface::ChainWatchInterfaceUtil,
93 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
94 pub fee_estimator: &'a test_utils::TestFeeEstimator,
95 pub chan_monitor: test_utils::TestChannelMonitor<'a>,
96 pub keys_manager: test_utils::TestKeysInterface,
97 pub logger: &'a test_utils::TestLogger,
98 pub node_seed: [u8; 32],
101 pub struct Node<'a, 'b: 'a, 'c: 'b> {
102 pub block_notifier: chaininterface::BlockNotifierRef<'a>,
103 pub chain_monitor: &'c chaininterface::ChainWatchInterfaceUtil,
104 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
105 pub chan_monitor: &'b test_utils::TestChannelMonitor<'c>,
106 pub keys_manager: &'b test_utils::TestKeysInterface,
107 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChannelMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
108 pub net_graph_msg_handler: NetGraphMsgHandler<&'c chaininterface::ChainWatchInterfaceUtil, &'c test_utils::TestLogger>,
109 pub node_seed: [u8; 32],
110 pub network_payment_count: Rc<RefCell<u8>>,
111 pub network_chan_count: Rc<RefCell<u32>>,
112 pub logger: &'c test_utils::TestLogger,
115 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
117 if !::std::thread::panicking() {
118 // Check that we processed all pending events
119 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
120 assert!(self.node.get_and_clear_pending_events().is_empty());
121 assert!(self.chan_monitor.added_monitors.lock().unwrap().is_empty());
123 // Check that if we serialize the Router, we can deserialize it again.
125 let mut w = test_utils::TestVecWriter(Vec::new());
126 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
127 network_graph_ser.write(&mut w).unwrap();
128 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
129 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
130 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
131 self.chain_monitor, self.logger, network_graph_deser
133 let mut chan_progress = 0;
135 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
136 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
137 assert!(orig_announcements == deserialized_announcements);
138 chan_progress = match orig_announcements.last() {
139 Some(announcement) => announcement.0.contents.short_channel_id + 1,
143 let mut node_progress = None;
145 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
146 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
147 assert!(orig_announcements == deserialized_announcements);
148 node_progress = match orig_announcements.last() {
149 Some(announcement) => Some(announcement.contents.node_id),
155 // Check that if we serialize and then deserialize all our channel monitors we get the
156 // same set of outputs to watch for on chain as we have now. Note that if we write
157 // tests that fully close channels and remove the monitors at some point this may break.
158 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
159 let mut deserialized_monitors = Vec::new();
161 let old_monitors = self.chan_monitor.simple_monitor.monitors.lock().unwrap();
162 for (_, old_monitor) in old_monitors.iter() {
163 let mut w = test_utils::TestVecWriter(Vec::new());
164 old_monitor.write_for_disk(&mut w).unwrap();
165 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
166 &mut ::std::io::Cursor::new(&w.0)).unwrap();
167 deserialized_monitors.push(deserialized_monitor);
171 // Before using all the new monitors to check the watch outpoints, use the full set of
172 // them to ensure we can write and reload our ChannelManager.
174 let mut channel_monitors = HashMap::new();
175 for monitor in deserialized_monitors.iter_mut() {
176 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
179 let mut w = test_utils::TestVecWriter(Vec::new());
180 self.node.write(&mut w).unwrap();
181 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
182 default_config: UserConfig::default(),
183 keys_manager: self.keys_manager,
184 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
185 monitor: self.chan_monitor,
186 tx_broadcaster: self.tx_broadcaster.clone(),
187 logger: &test_utils::TestLogger::new(),
192 let chain_watch = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
193 let channel_monitor = test_utils::TestChannelMonitor::new(&chain_watch, self.tx_broadcaster.clone(), &self.logger, &feeest);
194 for deserialized_monitor in deserialized_monitors.drain(..) {
195 if let Err(_) = channel_monitor.add_monitor(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
199 if chain_watch != *self.chain_monitor {
206 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) {
207 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
210 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) {
211 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);
212 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
213 (announcement, as_update, bs_update, channel_id, tx)
216 macro_rules! get_revoke_commit_msgs {
217 ($node: expr, $node_id: expr) => {
219 let events = $node.node.get_and_clear_pending_msg_events();
220 assert_eq!(events.len(), 2);
222 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
223 assert_eq!(*node_id, $node_id);
226 _ => panic!("Unexpected event"),
228 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
229 assert_eq!(*node_id, $node_id);
230 assert!(updates.update_add_htlcs.is_empty());
231 assert!(updates.update_fulfill_htlcs.is_empty());
232 assert!(updates.update_fail_htlcs.is_empty());
233 assert!(updates.update_fail_malformed_htlcs.is_empty());
234 assert!(updates.update_fee.is_none());
235 updates.commitment_signed.clone()
237 _ => panic!("Unexpected event"),
243 macro_rules! get_event_msg {
244 ($node: expr, $event_type: path, $node_id: expr) => {
246 let events = $node.node.get_and_clear_pending_msg_events();
247 assert_eq!(events.len(), 1);
249 $event_type { ref node_id, ref msg } => {
250 assert_eq!(*node_id, $node_id);
253 _ => panic!("Unexpected event"),
259 macro_rules! get_htlc_update_msgs {
260 ($node: expr, $node_id: expr) => {
262 let events = $node.node.get_and_clear_pending_msg_events();
263 assert_eq!(events.len(), 1);
265 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
266 assert_eq!(*node_id, $node_id);
269 _ => panic!("Unexpected event"),
275 macro_rules! get_feerate {
276 ($node: expr, $channel_id: expr) => {
278 let chan_lock = $node.node.channel_state.lock().unwrap();
279 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
285 macro_rules! get_local_commitment_txn {
286 ($node: expr, $channel_id: expr) => {
288 let mut monitors = $node.chan_monitor.simple_monitor.monitors.lock().unwrap();
289 let mut commitment_txn = None;
290 for (funding_txo, monitor) in monitors.iter_mut() {
291 if funding_txo.to_channel_id() == $channel_id {
292 commitment_txn = Some(monitor.unsafe_get_latest_holder_commitment_txn(&$node.logger));
296 commitment_txn.unwrap()
301 macro_rules! unwrap_send_err {
302 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
304 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
305 assert_eq!(fails.len(), 1);
311 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
312 assert_eq!(fails.len(), 1);
314 Err($type) => { $check },
323 macro_rules! check_added_monitors {
324 ($node: expr, $count: expr) => {
326 let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
327 assert_eq!(added_monitors.len(), $count);
328 added_monitors.clear();
333 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) {
334 let chan_id = *node.network_chan_count.borrow();
336 let events = node.node.get_and_clear_pending_events();
337 assert_eq!(events.len(), 1);
339 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
340 assert_eq!(*channel_value_satoshis, expected_chan_value);
341 assert_eq!(user_channel_id, expected_user_chan_id);
343 let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
344 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
346 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
347 (*temporary_channel_id, tx, funding_outpoint)
349 _ => panic!("Unexpected event"),
353 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 {
354 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
355 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()));
356 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()));
358 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
360 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
361 check_added_monitors!(node_a, 0);
363 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()));
365 let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
366 assert_eq!(added_monitors.len(), 1);
367 assert_eq!(added_monitors[0].0, funding_output);
368 added_monitors.clear();
371 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()));
373 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
374 assert_eq!(added_monitors.len(), 1);
375 assert_eq!(added_monitors[0].0, funding_output);
376 added_monitors.clear();
379 let events_4 = node_a.node.get_and_clear_pending_events();
380 assert_eq!(events_4.len(), 1);
382 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
383 assert_eq!(user_channel_id, 42);
384 assert_eq!(*funding_txo, funding_output);
386 _ => panic!("Unexpected event"),
392 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) {
393 confirm_transaction(node_conf, tx);
394 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()));
397 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]) {
399 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
400 assert_eq!(events_6.len(), 2);
401 ((match events_6[0] {
402 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
403 channel_id = msg.channel_id.clone();
404 assert_eq!(*node_id, node_recv.node.get_our_node_id());
407 _ => panic!("Unexpected event"),
408 }, match events_6[1] {
409 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
410 assert_eq!(*node_id, node_recv.node.get_our_node_id());
413 _ => panic!("Unexpected event"),
417 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]) {
418 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
419 confirm_transaction(node_a, tx);
420 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
423 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) {
424 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
425 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
429 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) {
430 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
431 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
432 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
434 let events_7 = node_b.node.get_and_clear_pending_msg_events();
435 assert_eq!(events_7.len(), 1);
436 let (announcement, bs_update) = match events_7[0] {
437 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
440 _ => panic!("Unexpected event"),
443 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
444 let events_8 = node_a.node.get_and_clear_pending_msg_events();
445 assert_eq!(events_8.len(), 1);
446 let as_update = match events_8[0] {
447 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
448 assert!(*announcement == *msg);
449 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
450 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
453 _ => panic!("Unexpected event"),
456 *node_a.network_chan_count.borrow_mut() += 1;
458 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
461 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) {
462 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
465 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) {
466 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
468 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
469 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
470 assert_eq!(a_events.len(), 1);
471 let a_node_announcement = match a_events[0] {
472 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
475 _ => panic!("Unexpected event"),
478 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
479 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
480 assert_eq!(b_events.len(), 1);
481 let b_node_announcement = match b_events[0] {
482 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
485 _ => panic!("Unexpected event"),
489 assert!(node.net_graph_msg_handler.handle_channel_announcement(&chan_announcement.0).unwrap());
490 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.1).unwrap();
491 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.2).unwrap();
492 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
493 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
495 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
498 macro_rules! check_spends {
499 ($tx: expr, $($spends_txn: expr),*) => {
501 $tx.verify(|out_point| {
503 if out_point.txid == $spends_txn.txid() {
504 return $spends_txn.output.get(out_point.vout as usize).cloned()
513 macro_rules! get_closing_signed_broadcast {
514 ($node: expr, $dest_pubkey: expr) => {
516 let events = $node.get_and_clear_pending_msg_events();
517 assert!(events.len() == 1 || events.len() == 2);
518 (match events[events.len() - 1] {
519 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
520 assert_eq!(msg.contents.flags & 2, 2);
523 _ => panic!("Unexpected event"),
524 }, if events.len() == 2 {
526 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
527 assert_eq!(*node_id, $dest_pubkey);
530 _ => panic!("Unexpected event"),
537 macro_rules! check_closed_broadcast {
538 ($node: expr, $with_error_msg: expr) => {{
539 let events = $node.node.get_and_clear_pending_msg_events();
540 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
542 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
543 assert_eq!(msg.contents.flags & 2, 2);
545 _ => panic!("Unexpected event"),
549 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
550 // TODO: Check node_id
553 _ => panic!("Unexpected event"),
559 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) {
560 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) };
561 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
564 node_a.close_channel(channel_id).unwrap();
565 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
567 let events_1 = node_b.get_and_clear_pending_msg_events();
568 assert!(events_1.len() >= 1);
569 let shutdown_b = match events_1[0] {
570 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
571 assert_eq!(node_id, &node_a.get_our_node_id());
574 _ => panic!("Unexpected event"),
577 let closing_signed_b = if !close_inbound_first {
578 assert_eq!(events_1.len(), 1);
581 Some(match events_1[1] {
582 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
583 assert_eq!(node_id, &node_a.get_our_node_id());
586 _ => panic!("Unexpected event"),
590 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
591 let (as_update, bs_update) = if close_inbound_first {
592 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
593 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
594 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
595 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
596 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
598 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
599 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
600 assert!(none_b.is_none());
601 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
602 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
603 (as_update, bs_update)
605 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
607 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
608 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
609 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
610 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
612 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
613 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
614 assert!(none_a.is_none());
615 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
616 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
617 (as_update, bs_update)
619 assert_eq!(tx_a, tx_b);
620 check_spends!(tx_a, funding_tx);
622 (as_update, bs_update, tx_a)
625 pub struct SendEvent {
626 pub node_id: PublicKey,
627 pub msgs: Vec<msgs::UpdateAddHTLC>,
628 pub commitment_msg: msgs::CommitmentSigned,
631 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
632 assert!(updates.update_fulfill_htlcs.is_empty());
633 assert!(updates.update_fail_htlcs.is_empty());
634 assert!(updates.update_fail_malformed_htlcs.is_empty());
635 assert!(updates.update_fee.is_none());
636 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
639 pub fn from_event(event: MessageSendEvent) -> SendEvent {
641 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
642 _ => panic!("Unexpected event type!"),
646 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
647 let mut events = node.node.get_and_clear_pending_msg_events();
648 assert_eq!(events.len(), 1);
649 SendEvent::from_event(events.pop().unwrap())
653 macro_rules! commitment_signed_dance {
654 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
656 check_added_monitors!($node_a, 0);
657 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
658 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
659 check_added_monitors!($node_a, 1);
660 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
663 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
665 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
666 check_added_monitors!($node_b, 0);
667 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
668 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
669 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
670 check_added_monitors!($node_b, 1);
671 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
672 let (bs_revoke_and_ack, extra_msg_option) = {
673 let events = $node_b.node.get_and_clear_pending_msg_events();
674 assert!(events.len() <= 2);
676 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
677 assert_eq!(*node_id, $node_a.node.get_our_node_id());
680 _ => panic!("Unexpected event"),
681 }, events.get(1).map(|e| e.clone()))
683 check_added_monitors!($node_b, 1);
685 assert!($node_a.node.get_and_clear_pending_events().is_empty());
686 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
688 (extra_msg_option, bs_revoke_and_ack)
691 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
693 check_added_monitors!($node_a, 0);
694 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
695 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
696 check_added_monitors!($node_a, 1);
697 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
698 assert!(extra_msg_option.is_none());
702 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
704 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
705 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
706 check_added_monitors!($node_a, 1);
710 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
712 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
715 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
717 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
719 expect_pending_htlcs_forwardable!($node_a);
720 check_added_monitors!($node_a, 1);
722 let channel_state = $node_a.node.channel_state.lock().unwrap();
723 assert_eq!(channel_state.pending_msg_events.len(), 1);
724 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
725 assert_ne!(*node_id, $node_b.node.get_our_node_id());
726 } else { panic!("Unexpected event"); }
728 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
734 macro_rules! get_payment_preimage_hash {
737 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
738 *$node.network_payment_count.borrow_mut() += 1;
739 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
740 (payment_preimage, payment_hash)
745 macro_rules! expect_pending_htlcs_forwardable_ignore {
747 let events = $node.node.get_and_clear_pending_events();
748 assert_eq!(events.len(), 1);
750 Event::PendingHTLCsForwardable { .. } => { },
751 _ => panic!("Unexpected event"),
756 macro_rules! expect_pending_htlcs_forwardable {
758 expect_pending_htlcs_forwardable_ignore!($node);
759 $node.node.process_pending_htlc_forwards();
763 macro_rules! expect_payment_received {
764 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
765 let events = $node.node.get_and_clear_pending_events();
766 assert_eq!(events.len(), 1);
768 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
769 assert_eq!($expected_payment_hash, *payment_hash);
770 assert_eq!(None, *payment_secret);
771 assert_eq!($expected_recv_value, amt);
773 _ => panic!("Unexpected event"),
778 macro_rules! expect_payment_sent {
779 ($node: expr, $expected_payment_preimage: expr) => {
780 let events = $node.node.get_and_clear_pending_events();
781 assert_eq!(events.len(), 1);
783 Event::PaymentSent { ref payment_preimage } => {
784 assert_eq!($expected_payment_preimage, *payment_preimage);
786 _ => panic!("Unexpected event"),
791 macro_rules! expect_payment_failed {
792 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
793 let events = $node.node.get_and_clear_pending_events();
794 assert_eq!(events.len(), 1);
796 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
797 assert_eq!(*payment_hash, $expected_payment_hash);
798 assert_eq!(rejected_by_dest, $rejected_by_dest);
799 assert!(error_code.is_some());
800 assert!(error_data.is_some());
802 assert_eq!(error_code.unwrap(), $expected_error_code);
803 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
806 _ => panic!("Unexpected event"),
811 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>) {
812 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
813 check_added_monitors!(origin_node, expected_paths.len());
814 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
817 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) {
818 let mut payment_event = SendEvent::from_event(ev);
819 let mut prev_node = origin_node;
821 for (idx, &node) in expected_path.iter().enumerate() {
822 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
824 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
825 check_added_monitors!(node, 0);
826 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
828 expect_pending_htlcs_forwardable!(node);
830 if idx == expected_path.len() - 1 {
831 let events_2 = node.node.get_and_clear_pending_events();
832 if payment_received_expected {
833 assert_eq!(events_2.len(), 1);
835 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
836 assert_eq!(our_payment_hash, *payment_hash);
837 assert_eq!(our_payment_secret, *payment_secret);
838 assert_eq!(amt, recv_value);
840 _ => panic!("Unexpected event"),
843 assert!(events_2.is_empty());
846 let mut events_2 = node.node.get_and_clear_pending_msg_events();
847 assert_eq!(events_2.len(), 1);
848 check_added_monitors!(node, 1);
849 payment_event = SendEvent::from_event(events_2.remove(0));
850 assert_eq!(payment_event.msgs.len(), 1);
857 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>) {
858 let mut events = origin_node.node.get_and_clear_pending_msg_events();
859 assert_eq!(events.len(), expected_route.len());
860 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
861 // Once we've gotten through all the HTLCs, the last one should result in a
862 // PaymentReceived (but each previous one should not!), .
863 let expect_payment = path_idx == expected_route.len() - 1;
864 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
868 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) {
869 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
872 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) {
873 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
874 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
875 (our_payment_preimage, our_payment_hash)
878 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) {
879 for path in expected_paths.iter() {
880 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
882 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
883 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
885 macro_rules! msgs_from_ev {
888 &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 } } => {
889 assert!(update_add_htlcs.is_empty());
890 assert_eq!(update_fulfill_htlcs.len(), 1);
891 assert!(update_fail_htlcs.is_empty());
892 assert!(update_fail_malformed_htlcs.is_empty());
893 assert!(update_fee.is_none());
894 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
896 _ => panic!("Unexpected event"),
900 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
901 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
902 assert_eq!(events.len(), expected_paths.len());
903 for ev in events.iter() {
904 per_path_msgs.push(msgs_from_ev!(ev));
907 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
908 let mut next_msgs = Some(path_msgs);
909 let mut expected_next_node = next_hop;
911 macro_rules! last_update_fulfill_dance {
912 ($node: expr, $prev_node: expr) => {
914 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
915 check_added_monitors!($node, 0);
916 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
917 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
921 macro_rules! mid_update_fulfill_dance {
922 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
924 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
925 check_added_monitors!($node, 1);
926 let new_next_msgs = if $new_msgs {
927 let events = $node.node.get_and_clear_pending_msg_events();
928 assert_eq!(events.len(), 1);
929 let (res, nexthop) = msgs_from_ev!(&events[0]);
930 expected_next_node = nexthop;
933 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
936 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
937 next_msgs = new_next_msgs;
942 let mut prev_node = expected_route.last().unwrap();
943 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
944 assert_eq!(expected_next_node, node.node.get_our_node_id());
945 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
946 if next_msgs.is_some() {
947 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
949 assert!(!update_next_msgs);
950 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
952 if !skip_last && idx == expected_route.len() - 1 {
953 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
960 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
961 expect_payment_sent!(origin_node, our_payment_preimage);
966 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) {
967 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
970 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) {
971 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
974 pub const TEST_FINAL_CLTV: u32 = 32;
976 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
977 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
978 let logger = test_utils::TestLogger::new();
979 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();
980 assert_eq!(route.paths.len(), 1);
981 assert_eq!(route.paths[0].len(), expected_route.len());
982 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
983 assert_eq!(hop.pubkey, node.node.get_our_node_id());
986 send_along_route(origin_node, route, expected_route, recv_value)
989 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
990 let logger = test_utils::TestLogger::new();
991 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
992 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();
993 assert_eq!(route.paths.len(), 1);
994 assert_eq!(route.paths[0].len(), expected_route.len());
995 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
996 assert_eq!(hop.pubkey, node.node.get_our_node_id());
999 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
1000 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1001 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1004 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
1005 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1006 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
1009 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) {
1010 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
1011 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1012 check_added_monitors!(expected_route.last().unwrap(), 1);
1014 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1015 macro_rules! update_fail_dance {
1016 ($node: expr, $prev_node: expr, $last_node: expr) => {
1018 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1019 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1020 if skip_last && $last_node {
1021 expect_pending_htlcs_forwardable!($node);
1027 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1028 let mut prev_node = expected_route.last().unwrap();
1029 for (idx, node) in expected_route.iter().rev().enumerate() {
1030 assert_eq!(expected_next_node, node.node.get_our_node_id());
1031 if next_msgs.is_some() {
1032 // We may be the "last node" for the purpose of the commitment dance if we're
1033 // skipping the last node (implying it is disconnected) and we're the
1034 // second-to-last node!
1035 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1038 let events = node.node.get_and_clear_pending_msg_events();
1039 if !skip_last || idx != expected_route.len() - 1 {
1040 assert_eq!(events.len(), 1);
1042 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 } } => {
1043 assert!(update_add_htlcs.is_empty());
1044 assert!(update_fulfill_htlcs.is_empty());
1045 assert_eq!(update_fail_htlcs.len(), 1);
1046 assert!(update_fail_malformed_htlcs.is_empty());
1047 assert!(update_fee.is_none());
1048 expected_next_node = node_id.clone();
1049 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1051 _ => panic!("Unexpected event"),
1054 assert!(events.is_empty());
1056 if !skip_last && idx == expected_route.len() - 1 {
1057 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1064 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1066 let events = origin_node.node.get_and_clear_pending_events();
1067 assert_eq!(events.len(), 1);
1069 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1070 assert_eq!(payment_hash, our_payment_hash);
1071 assert!(rejected_by_dest);
1073 _ => panic!("Unexpected event"),
1078 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1079 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1082 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1083 let mut chan_mon_cfgs = Vec::new();
1084 for i in 0..node_count {
1085 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1086 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1087 let chain_monitor = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
1088 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1089 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_monitor, logger });
1095 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1096 let mut nodes = Vec::new();
1098 for i in 0..node_count {
1099 let seed = [i as u8; 32];
1100 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1101 let chan_monitor = test_utils::TestChannelMonitor::new(&chanmon_cfgs[i].chain_monitor, &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator);
1102 nodes.push(NodeCfg { chain_monitor: &chanmon_cfgs[i].chain_monitor, logger: &chanmon_cfgs[i].logger, tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster, fee_estimator: &chanmon_cfgs[i].fee_estimator, chan_monitor, keys_manager, node_seed: seed });
1108 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingChannelKeys, &'a TestChannelMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
1109 let mut chanmgrs = Vec::new();
1110 for i in 0..node_count {
1111 let mut default_config = UserConfig::default();
1112 default_config.channel_options.announced_channel = true;
1113 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1114 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
1115 let node = ChannelManager::new(Network::Testnet, cfgs[i].fee_estimator, &cfgs[i].chan_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);
1116 chanmgrs.push(node);
1122 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingChannelKeys, &'b TestChannelMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
1123 let mut nodes = Vec::new();
1124 let chan_count = Rc::new(RefCell::new(0));
1125 let payment_count = Rc::new(RefCell::new(0));
1127 for i in 0..node_count {
1128 let block_notifier = chaininterface::BlockNotifier::new();
1129 block_notifier.register_listener(&cfgs[i].chan_monitor.simple_monitor as &chaininterface::ChainListener);
1130 block_notifier.register_listener(&chan_mgrs[i] as &chaininterface::ChainListener);
1131 let net_graph_msg_handler = NetGraphMsgHandler::new(cfgs[i].chain_monitor, cfgs[i].logger);
1132 nodes.push(Node{ chain_monitor: &cfgs[i].chain_monitor, block_notifier,
1133 tx_broadcaster: cfgs[i].tx_broadcaster, chan_monitor: &cfgs[i].chan_monitor,
1134 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1135 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1136 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1143 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1144 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1146 #[derive(PartialEq)]
1147 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1148 /// Tests that the given node has broadcast transactions for the given Channel
1150 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
1151 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1152 /// broadcast and the revoked outputs were claimed.
1154 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1155 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1157 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1159 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> {
1160 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1161 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1163 let mut res = Vec::with_capacity(2);
1164 node_txn.retain(|tx| {
1165 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1166 check_spends!(tx, chan.3);
1167 if commitment_tx.is_none() {
1168 res.push(tx.clone());
1173 if let Some(explicit_tx) = commitment_tx {
1174 res.push(explicit_tx.clone());
1177 assert_eq!(res.len(), 1);
1179 if has_htlc_tx != HTLCType::NONE {
1180 node_txn.retain(|tx| {
1181 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1182 check_spends!(tx, res[0]);
1183 if has_htlc_tx == HTLCType::TIMEOUT {
1184 assert!(tx.lock_time != 0);
1186 assert!(tx.lock_time == 0);
1188 res.push(tx.clone());
1192 assert!(res.len() == 2 || res.len() == 3);
1194 assert_eq!(res[1], res[2]);
1198 assert!(node_txn.is_empty());
1202 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1203 /// HTLC transaction.
1204 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1205 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1206 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1207 // for revoked htlc outputs
1208 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1209 node_txn.retain(|tx| {
1210 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1211 check_spends!(tx, revoked_tx);
1215 node_txn.retain(|tx| {
1216 check_spends!(tx, commitment_revoked_tx);
1219 assert!(node_txn.is_empty());
1222 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1223 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1225 assert!(node_txn.len() >= 1);
1226 assert_eq!(node_txn[0].input.len(), 1);
1227 let mut found_prev = false;
1229 for tx in prev_txn {
1230 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1231 check_spends!(node_txn[0], tx);
1232 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1233 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1239 assert!(found_prev);
1241 let mut res = Vec::new();
1242 mem::swap(&mut *node_txn, &mut res);
1246 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1247 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1248 assert_eq!(events_1.len(), 1);
1249 let as_update = match events_1[0] {
1250 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1253 _ => panic!("Unexpected event"),
1256 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1257 assert_eq!(events_2.len(), 1);
1258 let bs_update = match events_2[0] {
1259 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1262 _ => panic!("Unexpected event"),
1266 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1267 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1271 macro_rules! get_channel_value_stat {
1272 ($node: expr, $channel_id: expr) => {{
1273 let chan_lock = $node.node.channel_state.lock().unwrap();
1274 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1275 chan.get_value_stat()
1279 macro_rules! get_chan_reestablish_msgs {
1280 ($src_node: expr, $dst_node: expr) => {
1282 let mut res = Vec::with_capacity(1);
1283 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1284 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1285 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1286 res.push(msg.clone());
1288 panic!("Unexpected event")
1296 macro_rules! handle_chan_reestablish_msgs {
1297 ($src_node: expr, $dst_node: expr) => {
1299 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1301 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1303 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1309 let mut revoke_and_ack = None;
1310 let mut commitment_update = None;
1311 let order = if let Some(ev) = msg_events.get(idx) {
1314 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1315 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1316 revoke_and_ack = Some(msg.clone());
1317 RAACommitmentOrder::RevokeAndACKFirst
1319 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1320 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1321 commitment_update = Some(updates.clone());
1322 RAACommitmentOrder::CommitmentFirst
1324 _ => panic!("Unexpected event"),
1327 RAACommitmentOrder::CommitmentFirst
1330 if let Some(ev) = msg_events.get(idx) {
1332 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1333 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1334 assert!(revoke_and_ack.is_none());
1335 revoke_and_ack = Some(msg.clone());
1337 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1338 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1339 assert!(commitment_update.is_none());
1340 commitment_update = Some(updates.clone());
1342 _ => panic!("Unexpected event"),
1346 (funding_locked, revoke_and_ack, commitment_update, order)
1351 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1352 /// for claims/fails they are separated out.
1353 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)) {
1354 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1355 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1356 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1357 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1359 if send_funding_locked.0 {
1360 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1362 for reestablish in reestablish_1.iter() {
1363 assert_eq!(reestablish.next_remote_commitment_number, 0);
1366 if send_funding_locked.1 {
1367 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1369 for reestablish in reestablish_2.iter() {
1370 assert_eq!(reestablish.next_remote_commitment_number, 0);
1373 if send_funding_locked.0 || send_funding_locked.1 {
1374 // If we expect any funding_locked's, both sides better have set
1375 // next_holder_commitment_number to 1
1376 for reestablish in reestablish_1.iter() {
1377 assert_eq!(reestablish.next_local_commitment_number, 1);
1379 for reestablish in reestablish_2.iter() {
1380 assert_eq!(reestablish.next_local_commitment_number, 1);
1384 let mut resp_1 = Vec::new();
1385 for msg in reestablish_1 {
1386 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1387 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1389 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1390 check_added_monitors!(node_b, 1);
1392 check_added_monitors!(node_b, 0);
1395 let mut resp_2 = Vec::new();
1396 for msg in reestablish_2 {
1397 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1398 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1400 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1401 check_added_monitors!(node_a, 1);
1403 check_added_monitors!(node_a, 0);
1406 // We don't yet support both needing updates, as that would require a different commitment dance:
1407 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1408 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1410 for chan_msgs in resp_1.drain(..) {
1411 if send_funding_locked.0 {
1412 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1413 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1414 if !announcement_event.is_empty() {
1415 assert_eq!(announcement_event.len(), 1);
1416 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1417 //TODO: Test announcement_sigs re-sending
1418 } else { panic!("Unexpected event!"); }
1421 assert!(chan_msgs.0.is_none());
1424 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1425 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1426 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1427 check_added_monitors!(node_a, 1);
1429 assert!(chan_msgs.1.is_none());
1431 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1432 let commitment_update = chan_msgs.2.unwrap();
1433 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1434 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1436 assert!(commitment_update.update_add_htlcs.is_empty());
1438 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1439 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1440 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1441 for update_add in commitment_update.update_add_htlcs {
1442 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1444 for update_fulfill in commitment_update.update_fulfill_htlcs {
1445 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1447 for update_fail in commitment_update.update_fail_htlcs {
1448 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1451 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1452 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1454 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1455 check_added_monitors!(node_a, 1);
1456 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1457 // No commitment_signed so get_event_msg's assert(len == 1) passes
1458 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1459 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1460 check_added_monitors!(node_b, 1);
1463 assert!(chan_msgs.2.is_none());
1467 for chan_msgs in resp_2.drain(..) {
1468 if send_funding_locked.1 {
1469 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1470 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1471 if !announcement_event.is_empty() {
1472 assert_eq!(announcement_event.len(), 1);
1473 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1474 //TODO: Test announcement_sigs re-sending
1475 } else { panic!("Unexpected event!"); }
1478 assert!(chan_msgs.0.is_none());
1481 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1482 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1483 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1484 check_added_monitors!(node_b, 1);
1486 assert!(chan_msgs.1.is_none());
1488 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1489 let commitment_update = chan_msgs.2.unwrap();
1490 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1491 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1493 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1494 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1495 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1496 for update_add in commitment_update.update_add_htlcs {
1497 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1499 for update_fulfill in commitment_update.update_fulfill_htlcs {
1500 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1502 for update_fail in commitment_update.update_fail_htlcs {
1503 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1506 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1507 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1509 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1510 check_added_monitors!(node_b, 1);
1511 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1512 // No commitment_signed so get_event_msg's assert(len == 1) passes
1513 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1514 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1515 check_added_monitors!(node_a, 1);
1518 assert!(chan_msgs.2.is_none());