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;
47 pub fn confirm_transaction<'a, 'b: 'a>(notifier: &'a chaininterface::BlockNotifierRef<'b>, tx: &Transaction) {
48 let dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
49 let dummy_tx_count = tx.version as usize;
50 let mut block = Block {
51 header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
52 txdata: vec![dummy_tx; dummy_tx_count],
54 block.txdata.push(tx.clone());
55 notifier.block_connected(&block, 1);
56 for i in 2..CHAN_CONFIRM_DEPTH {
58 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
61 notifier.block_connected(&block, i);
65 pub fn connect_blocks<'a, 'b>(notifier: &'a chaininterface::BlockNotifierRef<'b>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
66 let mut block = Block {
67 header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
70 notifier.block_connected(&block, height + 1);
71 for i in 2..depth + 1 {
73 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
76 notifier.block_connected(&block, height + i);
78 block.header.block_hash()
81 pub struct TestChanMonCfg {
82 pub tx_broadcaster: test_utils::TestBroadcaster,
83 pub fee_estimator: test_utils::TestFeeEstimator,
84 pub chain_monitor: chaininterface::ChainWatchInterfaceUtil,
85 pub logger: test_utils::TestLogger,
88 pub struct NodeCfg<'a> {
89 pub chain_monitor: &'a chaininterface::ChainWatchInterfaceUtil,
90 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
91 pub fee_estimator: &'a test_utils::TestFeeEstimator,
92 pub chan_monitor: test_utils::TestChannelMonitor<'a>,
93 pub keys_manager: test_utils::TestKeysInterface,
94 pub logger: &'a test_utils::TestLogger,
95 pub node_seed: [u8; 32],
98 pub struct Node<'a, 'b: 'a, 'c: 'b> {
99 pub block_notifier: chaininterface::BlockNotifierRef<'a>,
100 pub chain_monitor: &'c chaininterface::ChainWatchInterfaceUtil,
101 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
102 pub chan_monitor: &'b test_utils::TestChannelMonitor<'c>,
103 pub keys_manager: &'b test_utils::TestKeysInterface,
104 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChannelMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
105 pub net_graph_msg_handler: NetGraphMsgHandler<&'c chaininterface::ChainWatchInterfaceUtil, &'c test_utils::TestLogger>,
106 pub node_seed: [u8; 32],
107 pub network_payment_count: Rc<RefCell<u8>>,
108 pub network_chan_count: Rc<RefCell<u32>>,
109 pub logger: &'c test_utils::TestLogger,
112 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
114 if !::std::thread::panicking() {
115 // Check that we processed all pending events
116 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
117 assert!(self.node.get_and_clear_pending_events().is_empty());
118 assert!(self.chan_monitor.added_monitors.lock().unwrap().is_empty());
120 // Check that if we serialize the Router, we can deserialize it again.
122 let mut w = test_utils::TestVecWriter(Vec::new());
123 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
124 network_graph_ser.write(&mut w).unwrap();
125 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
126 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
127 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
128 self.chain_monitor, self.logger, network_graph_deser
130 let mut chan_progress = 0;
132 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
133 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
134 assert!(orig_announcements == deserialized_announcements);
135 chan_progress = match orig_announcements.last() {
136 Some(announcement) => announcement.0.contents.short_channel_id + 1,
140 let mut node_progress = None;
142 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
143 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
144 assert!(orig_announcements == deserialized_announcements);
145 node_progress = match orig_announcements.last() {
146 Some(announcement) => Some(announcement.contents.node_id),
152 // Check that if we serialize and then deserialize all our channel monitors we get the
153 // same set of outputs to watch for on chain as we have now. Note that if we write
154 // tests that fully close channels and remove the monitors at some point this may break.
155 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
156 let mut deserialized_monitors = Vec::new();
158 let old_monitors = self.chan_monitor.simple_monitor.monitors.lock().unwrap();
159 for (_, old_monitor) in old_monitors.iter() {
160 let mut w = test_utils::TestVecWriter(Vec::new());
161 old_monitor.write_for_disk(&mut w).unwrap();
162 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
163 &mut ::std::io::Cursor::new(&w.0)).unwrap();
164 deserialized_monitors.push(deserialized_monitor);
168 // Before using all the new monitors to check the watch outpoints, use the full set of
169 // them to ensure we can write and reload our ChannelManager.
171 let mut channel_monitors = HashMap::new();
172 for monitor in deserialized_monitors.iter_mut() {
173 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
176 let mut w = test_utils::TestVecWriter(Vec::new());
177 self.node.write(&mut w).unwrap();
178 <(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 {
179 default_config: UserConfig::default(),
180 keys_manager: self.keys_manager,
181 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
182 monitor: self.chan_monitor,
183 tx_broadcaster: self.tx_broadcaster.clone(),
184 logger: &test_utils::TestLogger::new(),
189 let chain_watch = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
190 let channel_monitor = test_utils::TestChannelMonitor::new(&chain_watch, self.tx_broadcaster.clone(), &self.logger, &feeest);
191 for deserialized_monitor in deserialized_monitors.drain(..) {
192 if let Err(_) = channel_monitor.add_monitor(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
196 if chain_watch != *self.chain_monitor {
203 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) {
204 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
207 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) {
208 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);
209 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
210 (announcement, as_update, bs_update, channel_id, tx)
213 macro_rules! get_revoke_commit_msgs {
214 ($node: expr, $node_id: expr) => {
216 let events = $node.node.get_and_clear_pending_msg_events();
217 assert_eq!(events.len(), 2);
219 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
220 assert_eq!(*node_id, $node_id);
223 _ => panic!("Unexpected event"),
225 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
226 assert_eq!(*node_id, $node_id);
227 assert!(updates.update_add_htlcs.is_empty());
228 assert!(updates.update_fulfill_htlcs.is_empty());
229 assert!(updates.update_fail_htlcs.is_empty());
230 assert!(updates.update_fail_malformed_htlcs.is_empty());
231 assert!(updates.update_fee.is_none());
232 updates.commitment_signed.clone()
234 _ => panic!("Unexpected event"),
240 macro_rules! get_event_msg {
241 ($node: expr, $event_type: path, $node_id: expr) => {
243 let events = $node.node.get_and_clear_pending_msg_events();
244 assert_eq!(events.len(), 1);
246 $event_type { ref node_id, ref msg } => {
247 assert_eq!(*node_id, $node_id);
250 _ => panic!("Unexpected event"),
256 macro_rules! get_htlc_update_msgs {
257 ($node: expr, $node_id: expr) => {
259 let events = $node.node.get_and_clear_pending_msg_events();
260 assert_eq!(events.len(), 1);
262 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
263 assert_eq!(*node_id, $node_id);
266 _ => panic!("Unexpected event"),
272 macro_rules! get_feerate {
273 ($node: expr, $channel_id: expr) => {
275 let chan_lock = $node.node.channel_state.lock().unwrap();
276 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
282 macro_rules! get_local_commitment_txn {
283 ($node: expr, $channel_id: expr) => {
285 let mut monitors = $node.chan_monitor.simple_monitor.monitors.lock().unwrap();
286 let mut commitment_txn = None;
287 for (funding_txo, monitor) in monitors.iter_mut() {
288 if funding_txo.to_channel_id() == $channel_id {
289 commitment_txn = Some(monitor.unsafe_get_latest_holder_commitment_txn(&$node.logger));
293 commitment_txn.unwrap()
298 macro_rules! unwrap_send_err {
299 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
301 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
302 assert_eq!(fails.len(), 1);
308 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
309 assert_eq!(fails.len(), 1);
311 Err($type) => { $check },
320 macro_rules! check_added_monitors {
321 ($node: expr, $count: expr) => {
323 let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
324 assert_eq!(added_monitors.len(), $count);
325 added_monitors.clear();
330 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) {
331 let chan_id = *node.network_chan_count.borrow();
333 let events = node.node.get_and_clear_pending_events();
334 assert_eq!(events.len(), 1);
336 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
337 assert_eq!(*channel_value_satoshis, expected_chan_value);
338 assert_eq!(user_channel_id, expected_user_chan_id);
340 let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
341 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
343 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
344 (*temporary_channel_id, tx, funding_outpoint)
346 _ => panic!("Unexpected event"),
350 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 {
351 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
352 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()));
353 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()));
355 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
357 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
358 check_added_monitors!(node_a, 0);
360 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()));
362 let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
363 assert_eq!(added_monitors.len(), 1);
364 assert_eq!(added_monitors[0].0, funding_output);
365 added_monitors.clear();
368 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()));
370 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
371 assert_eq!(added_monitors.len(), 1);
372 assert_eq!(added_monitors[0].0, funding_output);
373 added_monitors.clear();
376 let events_4 = node_a.node.get_and_clear_pending_events();
377 assert_eq!(events_4.len(), 1);
379 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
380 assert_eq!(user_channel_id, 42);
381 assert_eq!(*funding_txo, funding_output);
383 _ => panic!("Unexpected event"),
389 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) {
390 confirm_transaction(&node_conf.block_notifier, &tx);
391 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()));
394 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]) {
396 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
397 assert_eq!(events_6.len(), 2);
398 ((match events_6[0] {
399 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
400 channel_id = msg.channel_id.clone();
401 assert_eq!(*node_id, node_recv.node.get_our_node_id());
404 _ => panic!("Unexpected event"),
405 }, match events_6[1] {
406 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
407 assert_eq!(*node_id, node_recv.node.get_our_node_id());
410 _ => panic!("Unexpected event"),
414 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]) {
415 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
416 confirm_transaction(&node_a.block_notifier, &tx);
417 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
420 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) {
421 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
422 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
426 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) {
427 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
428 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
429 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
431 let events_7 = node_b.node.get_and_clear_pending_msg_events();
432 assert_eq!(events_7.len(), 1);
433 let (announcement, bs_update) = match events_7[0] {
434 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
437 _ => panic!("Unexpected event"),
440 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
441 let events_8 = node_a.node.get_and_clear_pending_msg_events();
442 assert_eq!(events_8.len(), 1);
443 let as_update = match events_8[0] {
444 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
445 assert!(*announcement == *msg);
446 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
447 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
450 _ => panic!("Unexpected event"),
453 *node_a.network_chan_count.borrow_mut() += 1;
455 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
458 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) {
459 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
462 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) {
463 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
465 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
466 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
467 assert_eq!(a_events.len(), 1);
468 let a_node_announcement = match a_events[0] {
469 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
472 _ => panic!("Unexpected event"),
475 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
476 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
477 assert_eq!(b_events.len(), 1);
478 let b_node_announcement = match b_events[0] {
479 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
482 _ => panic!("Unexpected event"),
486 assert!(node.net_graph_msg_handler.handle_channel_announcement(&chan_announcement.0).unwrap());
487 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.1).unwrap();
488 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.2).unwrap();
489 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
490 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
492 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
495 macro_rules! check_spends {
496 ($tx: expr, $($spends_txn: expr),*) => {
498 $tx.verify(|out_point| {
500 if out_point.txid == $spends_txn.txid() {
501 return $spends_txn.output.get(out_point.vout as usize).cloned()
510 macro_rules! get_closing_signed_broadcast {
511 ($node: expr, $dest_pubkey: expr) => {
513 let events = $node.get_and_clear_pending_msg_events();
514 assert!(events.len() == 1 || events.len() == 2);
515 (match events[events.len() - 1] {
516 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
517 assert_eq!(msg.contents.flags & 2, 2);
520 _ => panic!("Unexpected event"),
521 }, if events.len() == 2 {
523 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
524 assert_eq!(*node_id, $dest_pubkey);
527 _ => panic!("Unexpected event"),
534 macro_rules! check_closed_broadcast {
535 ($node: expr, $with_error_msg: expr) => {{
536 let events = $node.node.get_and_clear_pending_msg_events();
537 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
539 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
540 assert_eq!(msg.contents.flags & 2, 2);
542 _ => panic!("Unexpected event"),
546 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
547 // TODO: Check node_id
550 _ => panic!("Unexpected event"),
556 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) {
557 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) };
558 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
561 node_a.close_channel(channel_id).unwrap();
562 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
564 let events_1 = node_b.get_and_clear_pending_msg_events();
565 assert!(events_1.len() >= 1);
566 let shutdown_b = match events_1[0] {
567 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
568 assert_eq!(node_id, &node_a.get_our_node_id());
571 _ => panic!("Unexpected event"),
574 let closing_signed_b = if !close_inbound_first {
575 assert_eq!(events_1.len(), 1);
578 Some(match events_1[1] {
579 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
580 assert_eq!(node_id, &node_a.get_our_node_id());
583 _ => panic!("Unexpected event"),
587 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
588 let (as_update, bs_update) = if close_inbound_first {
589 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
590 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
591 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
592 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
593 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
595 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
596 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
597 assert!(none_b.is_none());
598 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
599 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
600 (as_update, bs_update)
602 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
604 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
605 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
606 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
607 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
609 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
610 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
611 assert!(none_a.is_none());
612 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
613 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
614 (as_update, bs_update)
616 assert_eq!(tx_a, tx_b);
617 check_spends!(tx_a, funding_tx);
619 (as_update, bs_update, tx_a)
622 pub struct SendEvent {
623 pub node_id: PublicKey,
624 pub msgs: Vec<msgs::UpdateAddHTLC>,
625 pub commitment_msg: msgs::CommitmentSigned,
628 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
629 assert!(updates.update_fulfill_htlcs.is_empty());
630 assert!(updates.update_fail_htlcs.is_empty());
631 assert!(updates.update_fail_malformed_htlcs.is_empty());
632 assert!(updates.update_fee.is_none());
633 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
636 pub fn from_event(event: MessageSendEvent) -> SendEvent {
638 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
639 _ => panic!("Unexpected event type!"),
643 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
644 let mut events = node.node.get_and_clear_pending_msg_events();
645 assert_eq!(events.len(), 1);
646 SendEvent::from_event(events.pop().unwrap())
650 macro_rules! commitment_signed_dance {
651 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
653 check_added_monitors!($node_a, 0);
654 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
655 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
656 check_added_monitors!($node_a, 1);
657 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
660 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
662 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
663 check_added_monitors!($node_b, 0);
664 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
665 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
666 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
667 check_added_monitors!($node_b, 1);
668 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
669 let (bs_revoke_and_ack, extra_msg_option) = {
670 let events = $node_b.node.get_and_clear_pending_msg_events();
671 assert!(events.len() <= 2);
673 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
674 assert_eq!(*node_id, $node_a.node.get_our_node_id());
677 _ => panic!("Unexpected event"),
678 }, events.get(1).map(|e| e.clone()))
680 check_added_monitors!($node_b, 1);
682 assert!($node_a.node.get_and_clear_pending_events().is_empty());
683 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
685 (extra_msg_option, bs_revoke_and_ack)
688 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
690 check_added_monitors!($node_a, 0);
691 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
692 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
693 check_added_monitors!($node_a, 1);
694 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
695 assert!(extra_msg_option.is_none());
699 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
701 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
702 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
703 check_added_monitors!($node_a, 1);
707 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
709 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
712 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
714 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
716 expect_pending_htlcs_forwardable!($node_a);
717 check_added_monitors!($node_a, 1);
719 let channel_state = $node_a.node.channel_state.lock().unwrap();
720 assert_eq!(channel_state.pending_msg_events.len(), 1);
721 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
722 assert_ne!(*node_id, $node_b.node.get_our_node_id());
723 } else { panic!("Unexpected event"); }
725 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
731 macro_rules! get_payment_preimage_hash {
734 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
735 *$node.network_payment_count.borrow_mut() += 1;
736 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
737 (payment_preimage, payment_hash)
742 macro_rules! expect_pending_htlcs_forwardable_ignore {
744 let events = $node.node.get_and_clear_pending_events();
745 assert_eq!(events.len(), 1);
747 Event::PendingHTLCsForwardable { .. } => { },
748 _ => panic!("Unexpected event"),
753 macro_rules! expect_pending_htlcs_forwardable {
755 expect_pending_htlcs_forwardable_ignore!($node);
756 $node.node.process_pending_htlc_forwards();
760 macro_rules! expect_payment_received {
761 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
762 let events = $node.node.get_and_clear_pending_events();
763 assert_eq!(events.len(), 1);
765 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
766 assert_eq!($expected_payment_hash, *payment_hash);
767 assert_eq!(None, *payment_secret);
768 assert_eq!($expected_recv_value, amt);
770 _ => panic!("Unexpected event"),
775 macro_rules! expect_payment_sent {
776 ($node: expr, $expected_payment_preimage: expr) => {
777 let events = $node.node.get_and_clear_pending_events();
778 assert_eq!(events.len(), 1);
780 Event::PaymentSent { ref payment_preimage } => {
781 assert_eq!($expected_payment_preimage, *payment_preimage);
783 _ => panic!("Unexpected event"),
788 macro_rules! expect_payment_failed {
789 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
790 let events = $node.node.get_and_clear_pending_events();
791 assert_eq!(events.len(), 1);
793 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
794 assert_eq!(*payment_hash, $expected_payment_hash);
795 assert_eq!(rejected_by_dest, $rejected_by_dest);
796 assert!(error_code.is_some());
797 assert!(error_data.is_some());
799 assert_eq!(error_code.unwrap(), $expected_error_code);
800 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
803 _ => panic!("Unexpected event"),
808 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>) {
809 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
810 check_added_monitors!(origin_node, expected_paths.len());
811 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
814 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) {
815 let mut payment_event = SendEvent::from_event(ev);
816 let mut prev_node = origin_node;
818 for (idx, &node) in expected_path.iter().enumerate() {
819 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
821 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
822 check_added_monitors!(node, 0);
823 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
825 expect_pending_htlcs_forwardable!(node);
827 if idx == expected_path.len() - 1 {
828 let events_2 = node.node.get_and_clear_pending_events();
829 if payment_received_expected {
830 assert_eq!(events_2.len(), 1);
832 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
833 assert_eq!(our_payment_hash, *payment_hash);
834 assert_eq!(our_payment_secret, *payment_secret);
835 assert_eq!(amt, recv_value);
837 _ => panic!("Unexpected event"),
840 assert!(events_2.is_empty());
843 let mut events_2 = node.node.get_and_clear_pending_msg_events();
844 assert_eq!(events_2.len(), 1);
845 check_added_monitors!(node, 1);
846 payment_event = SendEvent::from_event(events_2.remove(0));
847 assert_eq!(payment_event.msgs.len(), 1);
854 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>) {
855 let mut events = origin_node.node.get_and_clear_pending_msg_events();
856 assert_eq!(events.len(), expected_route.len());
857 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
858 // Once we've gotten through all the HTLCs, the last one should result in a
859 // PaymentReceived (but each previous one should not!), .
860 let expect_payment = path_idx == expected_route.len() - 1;
861 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
865 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) {
866 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
869 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) {
870 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
871 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
872 (our_payment_preimage, our_payment_hash)
875 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) {
876 for path in expected_paths.iter() {
877 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
879 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
880 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
882 macro_rules! msgs_from_ev {
885 &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 } } => {
886 assert!(update_add_htlcs.is_empty());
887 assert_eq!(update_fulfill_htlcs.len(), 1);
888 assert!(update_fail_htlcs.is_empty());
889 assert!(update_fail_malformed_htlcs.is_empty());
890 assert!(update_fee.is_none());
891 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
893 _ => panic!("Unexpected event"),
897 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
898 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
899 assert_eq!(events.len(), expected_paths.len());
900 for ev in events.iter() {
901 per_path_msgs.push(msgs_from_ev!(ev));
904 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
905 let mut next_msgs = Some(path_msgs);
906 let mut expected_next_node = next_hop;
908 macro_rules! last_update_fulfill_dance {
909 ($node: expr, $prev_node: expr) => {
911 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
912 check_added_monitors!($node, 0);
913 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
914 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
918 macro_rules! mid_update_fulfill_dance {
919 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
921 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
922 check_added_monitors!($node, 1);
923 let new_next_msgs = if $new_msgs {
924 let events = $node.node.get_and_clear_pending_msg_events();
925 assert_eq!(events.len(), 1);
926 let (res, nexthop) = msgs_from_ev!(&events[0]);
927 expected_next_node = nexthop;
930 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
933 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
934 next_msgs = new_next_msgs;
939 let mut prev_node = expected_route.last().unwrap();
940 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
941 assert_eq!(expected_next_node, node.node.get_our_node_id());
942 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
943 if next_msgs.is_some() {
944 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
946 assert!(!update_next_msgs);
947 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
949 if !skip_last && idx == expected_route.len() - 1 {
950 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
957 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
958 expect_payment_sent!(origin_node, our_payment_preimage);
963 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) {
964 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
967 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) {
968 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
971 pub const TEST_FINAL_CLTV: u32 = 32;
973 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
974 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
975 let logger = test_utils::TestLogger::new();
976 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();
977 assert_eq!(route.paths.len(), 1);
978 assert_eq!(route.paths[0].len(), expected_route.len());
979 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
980 assert_eq!(hop.pubkey, node.node.get_our_node_id());
983 send_along_route(origin_node, route, expected_route, recv_value)
986 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
987 let logger = test_utils::TestLogger::new();
988 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
989 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();
990 assert_eq!(route.paths.len(), 1);
991 assert_eq!(route.paths[0].len(), expected_route.len());
992 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
993 assert_eq!(hop.pubkey, node.node.get_our_node_id());
996 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
997 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
998 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1001 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
1002 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1003 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
1006 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) {
1007 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
1008 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1009 check_added_monitors!(expected_route.last().unwrap(), 1);
1011 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1012 macro_rules! update_fail_dance {
1013 ($node: expr, $prev_node: expr, $last_node: expr) => {
1015 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1016 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1017 if skip_last && $last_node {
1018 expect_pending_htlcs_forwardable!($node);
1024 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1025 let mut prev_node = expected_route.last().unwrap();
1026 for (idx, node) in expected_route.iter().rev().enumerate() {
1027 assert_eq!(expected_next_node, node.node.get_our_node_id());
1028 if next_msgs.is_some() {
1029 // We may be the "last node" for the purpose of the commitment dance if we're
1030 // skipping the last node (implying it is disconnected) and we're the
1031 // second-to-last node!
1032 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1035 let events = node.node.get_and_clear_pending_msg_events();
1036 if !skip_last || idx != expected_route.len() - 1 {
1037 assert_eq!(events.len(), 1);
1039 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 } } => {
1040 assert!(update_add_htlcs.is_empty());
1041 assert!(update_fulfill_htlcs.is_empty());
1042 assert_eq!(update_fail_htlcs.len(), 1);
1043 assert!(update_fail_malformed_htlcs.is_empty());
1044 assert!(update_fee.is_none());
1045 expected_next_node = node_id.clone();
1046 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1048 _ => panic!("Unexpected event"),
1051 assert!(events.is_empty());
1053 if !skip_last && idx == expected_route.len() - 1 {
1054 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1061 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1063 let events = origin_node.node.get_and_clear_pending_events();
1064 assert_eq!(events.len(), 1);
1066 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1067 assert_eq!(payment_hash, our_payment_hash);
1068 assert!(rejected_by_dest);
1070 _ => panic!("Unexpected event"),
1075 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1076 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1079 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1080 let mut chan_mon_cfgs = Vec::new();
1081 for i in 0..node_count {
1082 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1083 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1084 let chain_monitor = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
1085 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1086 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_monitor, logger });
1092 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1093 let mut nodes = Vec::new();
1095 for i in 0..node_count {
1096 let seed = [i as u8; 32];
1097 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1098 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);
1099 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 });
1105 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>> {
1106 let mut chanmgrs = Vec::new();
1107 for i in 0..node_count {
1108 let mut default_config = UserConfig::default();
1109 default_config.channel_options.announced_channel = true;
1110 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1111 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
1112 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);
1113 chanmgrs.push(node);
1119 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>> {
1120 let mut nodes = Vec::new();
1121 let chan_count = Rc::new(RefCell::new(0));
1122 let payment_count = Rc::new(RefCell::new(0));
1124 for i in 0..node_count {
1125 let block_notifier = chaininterface::BlockNotifier::new();
1126 block_notifier.register_listener(&cfgs[i].chan_monitor.simple_monitor as &chaininterface::ChainListener);
1127 block_notifier.register_listener(&chan_mgrs[i] as &chaininterface::ChainListener);
1128 let net_graph_msg_handler = NetGraphMsgHandler::new(cfgs[i].chain_monitor, cfgs[i].logger);
1129 nodes.push(Node{ chain_monitor: &cfgs[i].chain_monitor, block_notifier,
1130 tx_broadcaster: cfgs[i].tx_broadcaster, chan_monitor: &cfgs[i].chan_monitor,
1131 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1132 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1133 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1140 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1141 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1143 #[derive(PartialEq)]
1144 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1145 /// Tests that the given node has broadcast transactions for the given Channel
1147 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
1148 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1149 /// broadcast and the revoked outputs were claimed.
1151 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1152 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1154 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1156 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> {
1157 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1158 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1160 let mut res = Vec::with_capacity(2);
1161 node_txn.retain(|tx| {
1162 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1163 check_spends!(tx, chan.3);
1164 if commitment_tx.is_none() {
1165 res.push(tx.clone());
1170 if let Some(explicit_tx) = commitment_tx {
1171 res.push(explicit_tx.clone());
1174 assert_eq!(res.len(), 1);
1176 if has_htlc_tx != HTLCType::NONE {
1177 node_txn.retain(|tx| {
1178 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1179 check_spends!(tx, res[0]);
1180 if has_htlc_tx == HTLCType::TIMEOUT {
1181 assert!(tx.lock_time != 0);
1183 assert!(tx.lock_time == 0);
1185 res.push(tx.clone());
1189 assert!(res.len() == 2 || res.len() == 3);
1191 assert_eq!(res[1], res[2]);
1195 assert!(node_txn.is_empty());
1199 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1200 /// HTLC transaction.
1201 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1202 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1203 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1204 // for revoked htlc outputs
1205 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1206 node_txn.retain(|tx| {
1207 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1208 check_spends!(tx, revoked_tx);
1212 node_txn.retain(|tx| {
1213 check_spends!(tx, commitment_revoked_tx);
1216 assert!(node_txn.is_empty());
1219 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1220 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1222 assert!(node_txn.len() >= 1);
1223 assert_eq!(node_txn[0].input.len(), 1);
1224 let mut found_prev = false;
1226 for tx in prev_txn {
1227 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1228 check_spends!(node_txn[0], tx);
1229 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1230 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1236 assert!(found_prev);
1238 let mut res = Vec::new();
1239 mem::swap(&mut *node_txn, &mut res);
1243 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1244 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1245 assert_eq!(events_1.len(), 1);
1246 let as_update = match events_1[0] {
1247 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1250 _ => panic!("Unexpected event"),
1253 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1254 assert_eq!(events_2.len(), 1);
1255 let bs_update = match events_2[0] {
1256 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1259 _ => panic!("Unexpected event"),
1263 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1264 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1268 macro_rules! get_channel_value_stat {
1269 ($node: expr, $channel_id: expr) => {{
1270 let chan_lock = $node.node.channel_state.lock().unwrap();
1271 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1272 chan.get_value_stat()
1276 macro_rules! get_chan_reestablish_msgs {
1277 ($src_node: expr, $dst_node: expr) => {
1279 let mut res = Vec::with_capacity(1);
1280 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1281 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1282 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1283 res.push(msg.clone());
1285 panic!("Unexpected event")
1293 macro_rules! handle_chan_reestablish_msgs {
1294 ($src_node: expr, $dst_node: expr) => {
1296 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1298 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1300 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1306 let mut revoke_and_ack = None;
1307 let mut commitment_update = None;
1308 let order = if let Some(ev) = msg_events.get(idx) {
1311 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1312 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1313 revoke_and_ack = Some(msg.clone());
1314 RAACommitmentOrder::RevokeAndACKFirst
1316 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1317 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1318 commitment_update = Some(updates.clone());
1319 RAACommitmentOrder::CommitmentFirst
1321 _ => panic!("Unexpected event"),
1324 RAACommitmentOrder::CommitmentFirst
1327 if let Some(ev) = msg_events.get(idx) {
1329 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1330 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1331 assert!(revoke_and_ack.is_none());
1332 revoke_and_ack = Some(msg.clone());
1334 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1335 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1336 assert!(commitment_update.is_none());
1337 commitment_update = Some(updates.clone());
1339 _ => panic!("Unexpected event"),
1343 (funding_locked, revoke_and_ack, commitment_update, order)
1348 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1349 /// for claims/fails they are separated out.
1350 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)) {
1351 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1352 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1353 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1354 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1356 if send_funding_locked.0 {
1357 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1359 for reestablish in reestablish_1.iter() {
1360 assert_eq!(reestablish.next_remote_commitment_number, 0);
1363 if send_funding_locked.1 {
1364 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1366 for reestablish in reestablish_2.iter() {
1367 assert_eq!(reestablish.next_remote_commitment_number, 0);
1370 if send_funding_locked.0 || send_funding_locked.1 {
1371 // If we expect any funding_locked's, both sides better have set
1372 // next_holder_commitment_number to 1
1373 for reestablish in reestablish_1.iter() {
1374 assert_eq!(reestablish.next_local_commitment_number, 1);
1376 for reestablish in reestablish_2.iter() {
1377 assert_eq!(reestablish.next_local_commitment_number, 1);
1381 let mut resp_1 = Vec::new();
1382 for msg in reestablish_1 {
1383 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1384 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1386 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1387 check_added_monitors!(node_b, 1);
1389 check_added_monitors!(node_b, 0);
1392 let mut resp_2 = Vec::new();
1393 for msg in reestablish_2 {
1394 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1395 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1397 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1398 check_added_monitors!(node_a, 1);
1400 check_added_monitors!(node_a, 0);
1403 // We don't yet support both needing updates, as that would require a different commitment dance:
1404 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1405 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1407 for chan_msgs in resp_1.drain(..) {
1408 if send_funding_locked.0 {
1409 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1410 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1411 if !announcement_event.is_empty() {
1412 assert_eq!(announcement_event.len(), 1);
1413 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1414 //TODO: Test announcement_sigs re-sending
1415 } else { panic!("Unexpected event!"); }
1418 assert!(chan_msgs.0.is_none());
1421 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1422 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1423 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1424 check_added_monitors!(node_a, 1);
1426 assert!(chan_msgs.1.is_none());
1428 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1429 let commitment_update = chan_msgs.2.unwrap();
1430 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1431 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1433 assert!(commitment_update.update_add_htlcs.is_empty());
1435 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1436 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1437 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1438 for update_add in commitment_update.update_add_htlcs {
1439 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1441 for update_fulfill in commitment_update.update_fulfill_htlcs {
1442 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1444 for update_fail in commitment_update.update_fail_htlcs {
1445 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1448 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1449 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1451 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1452 check_added_monitors!(node_a, 1);
1453 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1454 // No commitment_signed so get_event_msg's assert(len == 1) passes
1455 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1456 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1457 check_added_monitors!(node_b, 1);
1460 assert!(chan_msgs.2.is_none());
1464 for chan_msgs in resp_2.drain(..) {
1465 if send_funding_locked.1 {
1466 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1467 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1468 if !announcement_event.is_empty() {
1469 assert_eq!(announcement_event.len(), 1);
1470 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1471 //TODO: Test announcement_sigs re-sending
1472 } else { panic!("Unexpected event!"); }
1475 assert!(chan_msgs.0.is_none());
1478 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1479 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1480 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1481 check_added_monitors!(node_b, 1);
1483 assert!(chan_msgs.1.is_none());
1485 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1486 let commitment_update = chan_msgs.2.unwrap();
1487 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1488 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1490 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1491 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1492 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1493 for update_add in commitment_update.update_add_htlcs {
1494 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1496 for update_fulfill in commitment_update.update_fulfill_htlcs {
1497 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1499 for update_fail in commitment_update.update_fail_htlcs {
1500 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1503 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1504 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1506 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1507 check_added_monitors!(node_b, 1);
1508 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1509 // No commitment_signed so get_event_msg's assert(len == 1) passes
1510 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1511 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1512 check_added_monitors!(node_a, 1);
1515 assert!(chan_msgs.2.is_none());