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.
14 use chain::channelmonitor::ChannelMonitor;
15 use chain::transaction::OutPoint;
16 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
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::{TestChainMonitor, OnlyReadsKeysInterface};
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 dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
50 let dummy_tx_count = tx.version as usize;
51 let mut block = Block {
52 header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
53 txdata: vec![dummy_tx; dummy_tx_count],
55 block.txdata.push(tx.clone());
56 connect_block(node, &block, 1);
57 for i in 2..CHAN_CONFIRM_DEPTH {
59 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
62 connect_block(node, &block, i);
66 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
67 let mut block = Block {
68 header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
71 connect_block(node, &block, height + 1);
72 for i in 2..depth + 1 {
74 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
77 connect_block(node, &block, height + i);
79 block.header.block_hash()
82 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, height: u32) {
83 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
84 node.chain_monitor.chain_monitor.block_connected(&block.header, &txdata, height);
85 node.node.block_connected(&block.header, &txdata, height);
88 pub fn disconnect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, header: &BlockHeader, height: u32) {
89 node.chain_monitor.chain_monitor.block_disconnected(header, height);
90 node.node.block_disconnected(header);
93 pub struct TestChanMonCfg {
94 pub tx_broadcaster: test_utils::TestBroadcaster,
95 pub fee_estimator: test_utils::TestFeeEstimator,
96 pub chain_source: test_utils::TestChainSource,
97 pub persister: test_utils::TestPersister,
98 pub logger: test_utils::TestLogger,
101 pub struct NodeCfg<'a> {
102 pub chain_source: &'a test_utils::TestChainSource,
103 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
104 pub fee_estimator: &'a test_utils::TestFeeEstimator,
105 pub chain_monitor: test_utils::TestChainMonitor<'a>,
106 pub keys_manager: test_utils::TestKeysInterface,
107 pub logger: &'a test_utils::TestLogger,
108 pub node_seed: [u8; 32],
111 pub struct Node<'a, 'b: 'a, 'c: 'b> {
112 pub chain_source: &'c test_utils::TestChainSource,
113 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
114 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
115 pub keys_manager: &'b test_utils::TestKeysInterface,
116 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
117 pub net_graph_msg_handler: NetGraphMsgHandler<&'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
118 pub node_seed: [u8; 32],
119 pub network_payment_count: Rc<RefCell<u8>>,
120 pub network_chan_count: Rc<RefCell<u32>>,
121 pub logger: &'c test_utils::TestLogger,
124 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
126 if !::std::thread::panicking() {
127 // Check that we processed all pending events
128 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
129 assert!(self.node.get_and_clear_pending_events().is_empty());
130 assert!(self.chain_monitor.added_monitors.lock().unwrap().is_empty());
132 // Check that if we serialize the Router, we can deserialize it again.
134 let mut w = test_utils::TestVecWriter(Vec::new());
135 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
136 network_graph_ser.write(&mut w).unwrap();
137 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
138 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
139 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
140 Some(self.chain_source), self.logger, network_graph_deser
142 let mut chan_progress = 0;
144 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
145 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
146 assert!(orig_announcements == deserialized_announcements);
147 chan_progress = match orig_announcements.last() {
148 Some(announcement) => announcement.0.contents.short_channel_id + 1,
152 let mut node_progress = None;
154 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
155 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
156 assert!(orig_announcements == deserialized_announcements);
157 node_progress = match orig_announcements.last() {
158 Some(announcement) => Some(announcement.contents.node_id),
164 // Check that if we serialize and then deserialize all our channel monitors we get the
165 // same set of outputs to watch for on chain as we have now. Note that if we write
166 // tests that fully close channels and remove the monitors at some point this may break.
167 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
168 let mut deserialized_monitors = Vec::new();
170 let old_monitors = self.chain_monitor.chain_monitor.monitors.lock().unwrap();
171 for (_, old_monitor) in old_monitors.iter() {
172 let mut w = test_utils::TestVecWriter(Vec::new());
173 old_monitor.write(&mut w).unwrap();
174 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
175 &mut ::std::io::Cursor::new(&w.0), &OnlyReadsKeysInterface {}).unwrap();
176 deserialized_monitors.push(deserialized_monitor);
180 // Before using all the new monitors to check the watch outpoints, use the full set of
181 // them to ensure we can write and reload our ChannelManager.
183 let mut channel_monitors = HashMap::new();
184 for monitor in deserialized_monitors.iter_mut() {
185 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
188 let mut w = test_utils::TestVecWriter(Vec::new());
189 self.node.write(&mut w).unwrap();
190 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
191 default_config: UserConfig::default(),
192 keys_manager: self.keys_manager,
193 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
194 chain_monitor: self.chain_monitor,
195 tx_broadcaster: &test_utils::TestBroadcaster {
196 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone())
198 logger: &test_utils::TestLogger::new(),
203 let persister = test_utils::TestPersister::new();
204 let broadcaster = test_utils::TestBroadcaster {
205 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone())
207 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
208 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister);
209 for deserialized_monitor in deserialized_monitors.drain(..) {
210 if let Err(_) = chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
214 assert_eq!(*chain_source.watched_txn.lock().unwrap(), *self.chain_source.watched_txn.lock().unwrap());
215 assert_eq!(*chain_source.watched_outputs.lock().unwrap(), *self.chain_source.watched_outputs.lock().unwrap());
220 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) {
221 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
224 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) {
225 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);
226 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
227 (announcement, as_update, bs_update, channel_id, tx)
230 macro_rules! get_revoke_commit_msgs {
231 ($node: expr, $node_id: expr) => {
233 let events = $node.node.get_and_clear_pending_msg_events();
234 assert_eq!(events.len(), 2);
236 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
237 assert_eq!(*node_id, $node_id);
240 _ => panic!("Unexpected event"),
242 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
243 assert_eq!(*node_id, $node_id);
244 assert!(updates.update_add_htlcs.is_empty());
245 assert!(updates.update_fulfill_htlcs.is_empty());
246 assert!(updates.update_fail_htlcs.is_empty());
247 assert!(updates.update_fail_malformed_htlcs.is_empty());
248 assert!(updates.update_fee.is_none());
249 updates.commitment_signed.clone()
251 _ => panic!("Unexpected event"),
257 /// Get an specific event message from the pending events queue.
259 macro_rules! get_event_msg {
260 ($node: expr, $event_type: path, $node_id: expr) => {
262 let events = $node.node.get_and_clear_pending_msg_events();
263 assert_eq!(events.len(), 1);
265 $event_type { ref node_id, ref msg } => {
266 assert_eq!(*node_id, $node_id);
269 _ => panic!("Unexpected event"),
276 macro_rules! get_htlc_update_msgs {
277 ($node: expr, $node_id: expr) => {
279 let events = $node.node.get_and_clear_pending_msg_events();
280 assert_eq!(events.len(), 1);
282 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
283 assert_eq!(*node_id, $node_id);
286 _ => panic!("Unexpected event"),
293 macro_rules! get_feerate {
294 ($node: expr, $channel_id: expr) => {
296 let chan_lock = $node.node.channel_state.lock().unwrap();
297 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
304 macro_rules! get_local_commitment_txn {
305 ($node: expr, $channel_id: expr) => {
307 let mut monitors = $node.chain_monitor.chain_monitor.monitors.lock().unwrap();
308 let mut commitment_txn = None;
309 for (funding_txo, monitor) in monitors.iter_mut() {
310 if funding_txo.to_channel_id() == $channel_id {
311 commitment_txn = Some(monitor.unsafe_get_latest_holder_commitment_txn(&$node.logger));
315 commitment_txn.unwrap()
320 /// Check the error from attempting a payment.
322 macro_rules! unwrap_send_err {
323 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
325 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
326 assert_eq!(fails.len(), 1);
332 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
333 assert_eq!(fails.len(), 1);
335 Err($type) => { $check },
344 /// Check whether N channel monitor(s) have been added.
346 macro_rules! check_added_monitors {
347 ($node: expr, $count: expr) => {
349 let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
350 assert_eq!(added_monitors.len(), $count);
351 added_monitors.clear();
356 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) {
357 let chan_id = *node.network_chan_count.borrow();
359 let events = node.node.get_and_clear_pending_events();
360 assert_eq!(events.len(), 1);
362 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
363 assert_eq!(*channel_value_satoshis, expected_chan_value);
364 assert_eq!(user_channel_id, expected_user_chan_id);
366 let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
367 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
369 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
370 (*temporary_channel_id, tx, funding_outpoint)
372 _ => panic!("Unexpected event"),
376 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 {
377 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
378 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()));
379 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()));
381 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
383 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
384 check_added_monitors!(node_a, 0);
386 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()));
388 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
389 assert_eq!(added_monitors.len(), 1);
390 assert_eq!(added_monitors[0].0, funding_output);
391 added_monitors.clear();
394 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()));
396 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
397 assert_eq!(added_monitors.len(), 1);
398 assert_eq!(added_monitors[0].0, funding_output);
399 added_monitors.clear();
402 let events_4 = node_a.node.get_and_clear_pending_events();
403 assert_eq!(events_4.len(), 1);
405 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
406 assert_eq!(user_channel_id, 42);
407 assert_eq!(*funding_txo, funding_output);
409 _ => panic!("Unexpected event"),
415 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) {
416 confirm_transaction(node_conf, tx);
417 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()));
420 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]) {
422 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
423 assert_eq!(events_6.len(), 2);
424 ((match events_6[0] {
425 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
426 channel_id = msg.channel_id.clone();
427 assert_eq!(*node_id, node_recv.node.get_our_node_id());
430 _ => panic!("Unexpected event"),
431 }, match events_6[1] {
432 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
433 assert_eq!(*node_id, node_recv.node.get_our_node_id());
436 _ => panic!("Unexpected event"),
440 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]) {
441 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
442 confirm_transaction(node_a, tx);
443 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
446 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) {
447 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
448 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
452 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) {
453 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
454 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
455 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
457 let events_7 = node_b.node.get_and_clear_pending_msg_events();
458 assert_eq!(events_7.len(), 1);
459 let (announcement, bs_update) = match events_7[0] {
460 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
463 _ => panic!("Unexpected event"),
466 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
467 let events_8 = node_a.node.get_and_clear_pending_msg_events();
468 assert_eq!(events_8.len(), 1);
469 let as_update = match events_8[0] {
470 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
471 assert!(*announcement == *msg);
472 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
473 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
476 _ => panic!("Unexpected event"),
479 *node_a.network_chan_count.borrow_mut() += 1;
481 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
484 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) {
485 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
488 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) {
489 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
490 update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
491 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
494 pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, ann: &msgs::ChannelAnnouncement, upd_1: &msgs::ChannelUpdate, upd_2: &msgs::ChannelUpdate) {
495 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
496 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
497 assert_eq!(a_events.len(), 1);
498 let a_node_announcement = match a_events[0] {
499 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
502 _ => panic!("Unexpected event"),
505 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
506 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
507 assert_eq!(b_events.len(), 1);
508 let b_node_announcement = match b_events[0] {
509 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
512 _ => panic!("Unexpected event"),
516 assert!(node.net_graph_msg_handler.handle_channel_announcement(ann).unwrap());
517 node.net_graph_msg_handler.handle_channel_update(upd_1).unwrap();
518 node.net_graph_msg_handler.handle_channel_update(upd_2).unwrap();
519 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
520 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
524 macro_rules! check_spends {
525 ($tx: expr, $($spends_txn: expr),*) => {
527 let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
529 if out_point.txid == $spends_txn.txid() {
530 return $spends_txn.output.get(out_point.vout as usize).cloned()
535 let mut total_value_in = 0;
536 for input in $tx.input.iter() {
537 total_value_in += get_output(&input.previous_output).unwrap().value;
539 let mut total_value_out = 0;
540 for output in $tx.output.iter() {
541 total_value_out += output.value;
543 let min_fee = ($tx.get_weight() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
544 // Input amount - output amount = fee, so check that out + min_fee is smaller than input
545 assert!(total_value_out + min_fee <= total_value_in);
546 $tx.verify(get_output).unwrap();
551 macro_rules! get_closing_signed_broadcast {
552 ($node: expr, $dest_pubkey: expr) => {
554 let events = $node.get_and_clear_pending_msg_events();
555 assert!(events.len() == 1 || events.len() == 2);
556 (match events[events.len() - 1] {
557 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
558 assert_eq!(msg.contents.flags & 2, 2);
561 _ => panic!("Unexpected event"),
562 }, if events.len() == 2 {
564 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
565 assert_eq!(*node_id, $dest_pubkey);
568 _ => panic!("Unexpected event"),
575 /// Check that a channel's closing channel update has been broadcasted, and optionally
576 /// check whether an error message event has occurred.
578 macro_rules! check_closed_broadcast {
579 ($node: expr, $with_error_msg: expr) => {{
580 let events = $node.node.get_and_clear_pending_msg_events();
581 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
583 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
584 assert_eq!(msg.contents.flags & 2, 2);
586 _ => panic!("Unexpected event"),
590 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
591 // TODO: Check node_id
594 _ => panic!("Unexpected event"),
600 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) {
601 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) };
602 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
605 node_a.close_channel(channel_id).unwrap();
606 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
608 let events_1 = node_b.get_and_clear_pending_msg_events();
609 assert!(events_1.len() >= 1);
610 let shutdown_b = match events_1[0] {
611 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
612 assert_eq!(node_id, &node_a.get_our_node_id());
615 _ => panic!("Unexpected event"),
618 let closing_signed_b = if !close_inbound_first {
619 assert_eq!(events_1.len(), 1);
622 Some(match events_1[1] {
623 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
624 assert_eq!(node_id, &node_a.get_our_node_id());
627 _ => panic!("Unexpected event"),
631 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
632 let (as_update, bs_update) = if close_inbound_first {
633 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
634 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
635 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
636 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
637 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
639 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
640 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
641 assert!(none_b.is_none());
642 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
643 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
644 (as_update, bs_update)
646 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
648 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
649 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
650 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
651 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
653 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
654 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
655 assert!(none_a.is_none());
656 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
657 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
658 (as_update, bs_update)
660 assert_eq!(tx_a, tx_b);
661 check_spends!(tx_a, funding_tx);
663 (as_update, bs_update, tx_a)
666 pub struct SendEvent {
667 pub node_id: PublicKey,
668 pub msgs: Vec<msgs::UpdateAddHTLC>,
669 pub commitment_msg: msgs::CommitmentSigned,
672 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
673 assert!(updates.update_fulfill_htlcs.is_empty());
674 assert!(updates.update_fail_htlcs.is_empty());
675 assert!(updates.update_fail_malformed_htlcs.is_empty());
676 assert!(updates.update_fee.is_none());
677 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
680 pub fn from_event(event: MessageSendEvent) -> SendEvent {
682 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
683 _ => panic!("Unexpected event type!"),
687 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
688 let mut events = node.node.get_and_clear_pending_msg_events();
689 assert_eq!(events.len(), 1);
690 SendEvent::from_event(events.pop().unwrap())
694 macro_rules! commitment_signed_dance {
695 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
697 check_added_monitors!($node_a, 0);
698 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
699 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
700 check_added_monitors!($node_a, 1);
701 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
704 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
706 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
707 check_added_monitors!($node_b, 0);
708 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
709 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
710 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
711 check_added_monitors!($node_b, 1);
712 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
713 let (bs_revoke_and_ack, extra_msg_option) = {
714 let events = $node_b.node.get_and_clear_pending_msg_events();
715 assert!(events.len() <= 2);
717 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
718 assert_eq!(*node_id, $node_a.node.get_our_node_id());
721 _ => panic!("Unexpected event"),
722 }, events.get(1).map(|e| e.clone()))
724 check_added_monitors!($node_b, 1);
726 assert!($node_a.node.get_and_clear_pending_events().is_empty());
727 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
729 (extra_msg_option, bs_revoke_and_ack)
732 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
734 check_added_monitors!($node_a, 0);
735 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
736 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
737 check_added_monitors!($node_a, 1);
738 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
739 assert!(extra_msg_option.is_none());
743 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
745 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
746 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
747 check_added_monitors!($node_a, 1);
751 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
753 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
756 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
758 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
760 expect_pending_htlcs_forwardable!($node_a);
761 check_added_monitors!($node_a, 1);
763 let channel_state = $node_a.node.channel_state.lock().unwrap();
764 assert_eq!(channel_state.pending_msg_events.len(), 1);
765 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
766 assert_ne!(*node_id, $node_b.node.get_our_node_id());
767 } else { panic!("Unexpected event"); }
769 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
775 /// Get a payment preimage and hash.
777 macro_rules! get_payment_preimage_hash {
780 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
781 *$node.network_payment_count.borrow_mut() += 1;
782 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
783 (payment_preimage, payment_hash)
788 macro_rules! expect_pending_htlcs_forwardable_ignore {
790 let events = $node.node.get_and_clear_pending_events();
791 assert_eq!(events.len(), 1);
793 Event::PendingHTLCsForwardable { .. } => { },
794 _ => panic!("Unexpected event"),
799 macro_rules! expect_pending_htlcs_forwardable {
801 expect_pending_htlcs_forwardable_ignore!($node);
802 $node.node.process_pending_htlc_forwards();
807 macro_rules! expect_payment_received {
808 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
809 let events = $node.node.get_and_clear_pending_events();
810 assert_eq!(events.len(), 1);
812 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
813 assert_eq!($expected_payment_hash, *payment_hash);
814 assert_eq!(None, *payment_secret);
815 assert_eq!($expected_recv_value, amt);
817 _ => panic!("Unexpected event"),
822 macro_rules! expect_payment_sent {
823 ($node: expr, $expected_payment_preimage: expr) => {
824 let events = $node.node.get_and_clear_pending_events();
825 assert_eq!(events.len(), 1);
827 Event::PaymentSent { ref payment_preimage } => {
828 assert_eq!($expected_payment_preimage, *payment_preimage);
830 _ => panic!("Unexpected event"),
836 macro_rules! expect_payment_failed {
837 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
838 let events = $node.node.get_and_clear_pending_events();
839 assert_eq!(events.len(), 1);
841 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
842 assert_eq!(*payment_hash, $expected_payment_hash);
843 assert_eq!(rejected_by_dest, $rejected_by_dest);
844 assert!(error_code.is_some());
845 assert!(error_data.is_some());
847 assert_eq!(error_code.unwrap(), $expected_error_code);
848 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
851 _ => panic!("Unexpected event"),
856 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>) {
857 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
858 check_added_monitors!(origin_node, expected_paths.len());
859 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
862 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) {
863 let mut payment_event = SendEvent::from_event(ev);
864 let mut prev_node = origin_node;
866 for (idx, &node) in expected_path.iter().enumerate() {
867 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
869 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
870 check_added_monitors!(node, 0);
871 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
873 expect_pending_htlcs_forwardable!(node);
875 if idx == expected_path.len() - 1 {
876 let events_2 = node.node.get_and_clear_pending_events();
877 if payment_received_expected {
878 assert_eq!(events_2.len(), 1);
880 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
881 assert_eq!(our_payment_hash, *payment_hash);
882 assert_eq!(our_payment_secret, *payment_secret);
883 assert_eq!(amt, recv_value);
885 _ => panic!("Unexpected event"),
888 assert!(events_2.is_empty());
891 let mut events_2 = node.node.get_and_clear_pending_msg_events();
892 assert_eq!(events_2.len(), 1);
893 check_added_monitors!(node, 1);
894 payment_event = SendEvent::from_event(events_2.remove(0));
895 assert_eq!(payment_event.msgs.len(), 1);
902 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>) {
903 let mut events = origin_node.node.get_and_clear_pending_msg_events();
904 assert_eq!(events.len(), expected_route.len());
905 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
906 // Once we've gotten through all the HTLCs, the last one should result in a
907 // PaymentReceived (but each previous one should not!), .
908 let expect_payment = path_idx == expected_route.len() - 1;
909 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
913 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) {
914 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
917 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) {
918 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
919 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
920 (our_payment_preimage, our_payment_hash)
923 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) {
924 for path in expected_paths.iter() {
925 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
927 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
928 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
930 macro_rules! msgs_from_ev {
933 &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 } } => {
934 assert!(update_add_htlcs.is_empty());
935 assert_eq!(update_fulfill_htlcs.len(), 1);
936 assert!(update_fail_htlcs.is_empty());
937 assert!(update_fail_malformed_htlcs.is_empty());
938 assert!(update_fee.is_none());
939 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
941 _ => panic!("Unexpected event"),
945 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
946 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
947 assert_eq!(events.len(), expected_paths.len());
948 for ev in events.iter() {
949 per_path_msgs.push(msgs_from_ev!(ev));
952 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
953 let mut next_msgs = Some(path_msgs);
954 let mut expected_next_node = next_hop;
956 macro_rules! last_update_fulfill_dance {
957 ($node: expr, $prev_node: expr) => {
959 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
960 check_added_monitors!($node, 0);
961 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
962 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
966 macro_rules! mid_update_fulfill_dance {
967 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
969 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
970 check_added_monitors!($node, 1);
971 let new_next_msgs = if $new_msgs {
972 let events = $node.node.get_and_clear_pending_msg_events();
973 assert_eq!(events.len(), 1);
974 let (res, nexthop) = msgs_from_ev!(&events[0]);
975 expected_next_node = nexthop;
978 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
981 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
982 next_msgs = new_next_msgs;
987 let mut prev_node = expected_route.last().unwrap();
988 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
989 assert_eq!(expected_next_node, node.node.get_our_node_id());
990 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
991 if next_msgs.is_some() {
992 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
994 assert!(!update_next_msgs);
995 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
997 if !skip_last && idx == expected_route.len() - 1 {
998 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1005 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
1006 expect_payment_sent!(origin_node, our_payment_preimage);
1011 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) {
1012 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
1015 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) {
1016 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
1019 pub const TEST_FINAL_CLTV: u32 = 32;
1021 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
1022 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
1023 let logger = test_utils::TestLogger::new();
1024 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();
1025 assert_eq!(route.paths.len(), 1);
1026 assert_eq!(route.paths[0].len(), expected_route.len());
1027 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1028 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1031 send_along_route(origin_node, route, expected_route, recv_value)
1034 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
1035 let logger = test_utils::TestLogger::new();
1036 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
1037 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();
1038 assert_eq!(route.paths.len(), 1);
1039 assert_eq!(route.paths[0].len(), expected_route.len());
1040 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1041 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1044 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
1045 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1046 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1049 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
1050 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1051 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
1054 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) {
1055 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
1056 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1057 check_added_monitors!(expected_route.last().unwrap(), 1);
1059 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1060 macro_rules! update_fail_dance {
1061 ($node: expr, $prev_node: expr, $last_node: expr) => {
1063 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1064 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1065 if skip_last && $last_node {
1066 expect_pending_htlcs_forwardable!($node);
1072 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1073 let mut prev_node = expected_route.last().unwrap();
1074 for (idx, node) in expected_route.iter().rev().enumerate() {
1075 assert_eq!(expected_next_node, node.node.get_our_node_id());
1076 if next_msgs.is_some() {
1077 // We may be the "last node" for the purpose of the commitment dance if we're
1078 // skipping the last node (implying it is disconnected) and we're the
1079 // second-to-last node!
1080 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1083 let events = node.node.get_and_clear_pending_msg_events();
1084 if !skip_last || idx != expected_route.len() - 1 {
1085 assert_eq!(events.len(), 1);
1087 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 } } => {
1088 assert!(update_add_htlcs.is_empty());
1089 assert!(update_fulfill_htlcs.is_empty());
1090 assert_eq!(update_fail_htlcs.len(), 1);
1091 assert!(update_fail_malformed_htlcs.is_empty());
1092 assert!(update_fee.is_none());
1093 expected_next_node = node_id.clone();
1094 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1096 _ => panic!("Unexpected event"),
1099 assert!(events.is_empty());
1101 if !skip_last && idx == expected_route.len() - 1 {
1102 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1109 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1111 let events = origin_node.node.get_and_clear_pending_events();
1112 assert_eq!(events.len(), 1);
1114 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1115 assert_eq!(payment_hash, our_payment_hash);
1116 assert!(rejected_by_dest);
1118 _ => panic!("Unexpected event"),
1123 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1124 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1127 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1128 let mut chan_mon_cfgs = Vec::new();
1129 for i in 0..node_count {
1130 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1131 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1132 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
1133 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1134 let persister = test_utils::TestPersister::new();
1135 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_source, logger, persister });
1141 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1142 let mut nodes = Vec::new();
1144 for i in 0..node_count {
1145 let seed = [i as u8; 32];
1146 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1147 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[i].chain_source), &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator, &chanmon_cfgs[i].persister);
1148 nodes.push(NodeCfg { chain_source: &chanmon_cfgs[i].chain_source, logger: &chanmon_cfgs[i].logger, tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster, fee_estimator: &chanmon_cfgs[i].fee_estimator, chain_monitor, keys_manager, node_seed: seed });
1154 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingChannelKeys, &'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
1155 let mut chanmgrs = Vec::new();
1156 for i in 0..node_count {
1157 let mut default_config = UserConfig::default();
1158 default_config.channel_options.announced_channel = true;
1159 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1160 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
1161 let node = ChannelManager::new(Network::Testnet, cfgs[i].fee_estimator, &cfgs[i].chain_monitor, cfgs[i].tx_broadcaster, cfgs[i].logger, &cfgs[i].keys_manager, if node_config[i].is_some() { node_config[i].clone().unwrap() } else { default_config }, 0);
1162 chanmgrs.push(node);
1168 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
1169 let mut nodes = Vec::new();
1170 let chan_count = Rc::new(RefCell::new(0));
1171 let payment_count = Rc::new(RefCell::new(0));
1173 for i in 0..node_count {
1174 let net_graph_msg_handler = NetGraphMsgHandler::new(cfgs[i].chain_source.genesis_hash, None, cfgs[i].logger);
1175 nodes.push(Node{ chain_source: cfgs[i].chain_source,
1176 tx_broadcaster: cfgs[i].tx_broadcaster, chain_monitor: &cfgs[i].chain_monitor,
1177 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1178 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1179 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1186 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1187 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1189 #[derive(PartialEq)]
1190 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1191 /// Tests that the given node has broadcast transactions for the given Channel
1193 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
1194 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1195 /// broadcast and the revoked outputs were claimed.
1197 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1198 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1200 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1202 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> {
1203 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1204 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1206 let mut res = Vec::with_capacity(2);
1207 node_txn.retain(|tx| {
1208 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1209 check_spends!(tx, chan.3);
1210 if commitment_tx.is_none() {
1211 res.push(tx.clone());
1216 if let Some(explicit_tx) = commitment_tx {
1217 res.push(explicit_tx.clone());
1220 assert_eq!(res.len(), 1);
1222 if has_htlc_tx != HTLCType::NONE {
1223 node_txn.retain(|tx| {
1224 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1225 check_spends!(tx, res[0]);
1226 if has_htlc_tx == HTLCType::TIMEOUT {
1227 assert!(tx.lock_time != 0);
1229 assert!(tx.lock_time == 0);
1231 res.push(tx.clone());
1235 assert!(res.len() == 2 || res.len() == 3);
1237 assert_eq!(res[1], res[2]);
1241 assert!(node_txn.is_empty());
1245 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1246 /// HTLC transaction.
1247 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1248 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1249 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1250 // for revoked htlc outputs
1251 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1252 node_txn.retain(|tx| {
1253 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1254 check_spends!(tx, revoked_tx);
1258 node_txn.retain(|tx| {
1259 check_spends!(tx, commitment_revoked_tx);
1262 assert!(node_txn.is_empty());
1265 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1266 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1268 assert!(node_txn.len() >= 1);
1269 assert_eq!(node_txn[0].input.len(), 1);
1270 let mut found_prev = false;
1272 for tx in prev_txn {
1273 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1274 check_spends!(node_txn[0], tx);
1275 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1276 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1282 assert!(found_prev);
1284 let mut res = Vec::new();
1285 mem::swap(&mut *node_txn, &mut res);
1289 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1290 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1291 assert_eq!(events_1.len(), 1);
1292 let as_update = match events_1[0] {
1293 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1296 _ => panic!("Unexpected event"),
1299 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1300 assert_eq!(events_2.len(), 1);
1301 let bs_update = match events_2[0] {
1302 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1305 _ => panic!("Unexpected event"),
1309 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1310 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1315 macro_rules! get_channel_value_stat {
1316 ($node: expr, $channel_id: expr) => {{
1317 let chan_lock = $node.node.channel_state.lock().unwrap();
1318 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1319 chan.get_value_stat()
1323 macro_rules! get_chan_reestablish_msgs {
1324 ($src_node: expr, $dst_node: expr) => {
1326 let mut res = Vec::with_capacity(1);
1327 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1328 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1329 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1330 res.push(msg.clone());
1332 panic!("Unexpected event")
1340 macro_rules! handle_chan_reestablish_msgs {
1341 ($src_node: expr, $dst_node: expr) => {
1343 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1345 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1347 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1353 let mut revoke_and_ack = None;
1354 let mut commitment_update = None;
1355 let order = if let Some(ev) = msg_events.get(idx) {
1358 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1359 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1360 revoke_and_ack = Some(msg.clone());
1361 RAACommitmentOrder::RevokeAndACKFirst
1363 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1364 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1365 commitment_update = Some(updates.clone());
1366 RAACommitmentOrder::CommitmentFirst
1368 _ => panic!("Unexpected event"),
1371 RAACommitmentOrder::CommitmentFirst
1374 if let Some(ev) = msg_events.get(idx) {
1376 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1377 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1378 assert!(revoke_and_ack.is_none());
1379 revoke_and_ack = Some(msg.clone());
1381 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1382 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1383 assert!(commitment_update.is_none());
1384 commitment_update = Some(updates.clone());
1386 _ => panic!("Unexpected event"),
1390 (funding_locked, revoke_and_ack, commitment_update, order)
1395 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1396 /// for claims/fails they are separated out.
1397 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)) {
1398 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1399 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1400 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1401 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1403 if send_funding_locked.0 {
1404 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1406 for reestablish in reestablish_1.iter() {
1407 assert_eq!(reestablish.next_remote_commitment_number, 0);
1410 if send_funding_locked.1 {
1411 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1413 for reestablish in reestablish_2.iter() {
1414 assert_eq!(reestablish.next_remote_commitment_number, 0);
1417 if send_funding_locked.0 || send_funding_locked.1 {
1418 // If we expect any funding_locked's, both sides better have set
1419 // next_holder_commitment_number to 1
1420 for reestablish in reestablish_1.iter() {
1421 assert_eq!(reestablish.next_local_commitment_number, 1);
1423 for reestablish in reestablish_2.iter() {
1424 assert_eq!(reestablish.next_local_commitment_number, 1);
1428 let mut resp_1 = Vec::new();
1429 for msg in reestablish_1 {
1430 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1431 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1433 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1434 check_added_monitors!(node_b, 1);
1436 check_added_monitors!(node_b, 0);
1439 let mut resp_2 = Vec::new();
1440 for msg in reestablish_2 {
1441 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1442 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1444 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1445 check_added_monitors!(node_a, 1);
1447 check_added_monitors!(node_a, 0);
1450 // We don't yet support both needing updates, as that would require a different commitment dance:
1451 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1452 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1454 for chan_msgs in resp_1.drain(..) {
1455 if send_funding_locked.0 {
1456 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1457 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1458 if !announcement_event.is_empty() {
1459 assert_eq!(announcement_event.len(), 1);
1460 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1461 //TODO: Test announcement_sigs re-sending
1462 } else { panic!("Unexpected event!"); }
1465 assert!(chan_msgs.0.is_none());
1468 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1469 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1470 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1471 check_added_monitors!(node_a, 1);
1473 assert!(chan_msgs.1.is_none());
1475 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1476 let commitment_update = chan_msgs.2.unwrap();
1477 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1478 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1480 assert!(commitment_update.update_add_htlcs.is_empty());
1482 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1483 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1484 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1485 for update_add in commitment_update.update_add_htlcs {
1486 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1488 for update_fulfill in commitment_update.update_fulfill_htlcs {
1489 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1491 for update_fail in commitment_update.update_fail_htlcs {
1492 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1495 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1496 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1498 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1499 check_added_monitors!(node_a, 1);
1500 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1501 // No commitment_signed so get_event_msg's assert(len == 1) passes
1502 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1503 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1504 check_added_monitors!(node_b, 1);
1507 assert!(chan_msgs.2.is_none());
1511 for chan_msgs in resp_2.drain(..) {
1512 if send_funding_locked.1 {
1513 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1514 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1515 if !announcement_event.is_empty() {
1516 assert_eq!(announcement_event.len(), 1);
1517 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1518 //TODO: Test announcement_sigs re-sending
1519 } else { panic!("Unexpected event!"); }
1522 assert!(chan_msgs.0.is_none());
1525 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1526 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1527 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1528 check_added_monitors!(node_b, 1);
1530 assert!(chan_msgs.1.is_none());
1532 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1533 let commitment_update = chan_msgs.2.unwrap();
1534 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1535 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1537 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1538 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1539 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1540 for update_add in commitment_update.update_add_htlcs {
1541 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1543 for update_fulfill in commitment_update.update_fulfill_htlcs {
1544 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1546 for update_fail in commitment_update.update_fail_htlcs {
1547 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1550 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1551 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1553 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1554 check_added_monitors!(node_b, 1);
1555 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1556 // No commitment_signed so get_event_msg's assert(len == 1) passes
1557 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1558 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1559 check_added_monitors!(node_a, 1);
1562 assert!(chan_msgs.2.is_none());