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 crate::chain::{BestBlock, ChannelMonitorUpdateStatus, Confirm, Listen, Watch, keysinterface::EntropySource};
14 use crate::chain::channelmonitor::ChannelMonitor;
15 use crate::chain::transaction::OutPoint;
16 use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
17 use crate::ln::channelmanager::{self, ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, PaymentId, MIN_CLTV_EXPIRY_DELTA};
18 use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate};
19 use crate::routing::router::{PaymentParameters, Route, get_route};
20 use crate::ln::features::InitFeatures;
22 use crate::ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
23 use crate::util::enforcing_trait_impls::EnforcingSigner;
24 use crate::util::scid_utils;
25 use crate::util::test_utils;
26 use crate::util::test_utils::{panicking, TestChainMonitor};
27 use crate::util::events::{Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
28 use crate::util::errors::APIError;
29 use crate::util::config::UserConfig;
30 use crate::util::ser::{ReadableArgs, Writeable};
32 use bitcoin::blockdata::block::{Block, BlockHeader};
33 use bitcoin::blockdata::constants::genesis_block;
34 use bitcoin::blockdata::transaction::{Transaction, TxOut};
35 use bitcoin::network::constants::Network;
37 use bitcoin::hash_types::BlockHash;
38 use bitcoin::hashes::sha256::Hash as Sha256;
39 use bitcoin::hashes::Hash as _;
41 use bitcoin::secp256k1::PublicKey;
44 use crate::prelude::*;
45 use core::cell::RefCell;
47 use crate::sync::{Arc, Mutex};
49 use core::iter::repeat;
50 use bitcoin::{PackedLockTime, TxMerkleNode};
52 pub const CHAN_CONFIRM_DEPTH: u32 = 10;
54 /// Mine the given transaction in the next block and then mine CHAN_CONFIRM_DEPTH - 1 blocks on
55 /// top, giving the given transaction CHAN_CONFIRM_DEPTH confirmations.
57 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
58 /// output is the 1st output in the transaction.
59 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> u64 {
60 let scid = confirm_transaction_at(node, tx, node.best_block_info().1 + 1);
61 connect_blocks(node, CHAN_CONFIRM_DEPTH - 1);
64 /// Mine a signle block containing the given transaction
65 pub fn mine_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
66 let height = node.best_block_info().1 + 1;
67 confirm_transaction_at(node, tx, height);
69 /// Mine the given transaction at the given height, mining blocks as required to build to that
72 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
73 /// output is the 1st output in the transaction.
74 pub fn confirm_transaction_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) -> u64 {
75 let first_connect_height = node.best_block_info().1 + 1;
76 assert!(first_connect_height <= conf_height);
77 if conf_height > first_connect_height {
78 connect_blocks(node, conf_height - first_connect_height);
80 let mut block = Block {
81 header: BlockHeader { version: 0x20000000, prev_blockhash: node.best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: conf_height, bits: 42, nonce: 42 },
84 for _ in 0..*node.network_chan_count.borrow() { // Make sure we don't end up with channels at the same short id by offsetting by chan_count
85 block.txdata.push(Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() });
87 block.txdata.push(tx.clone());
88 connect_block(node, &block);
89 scid_utils::scid_from_parts(conf_height as u64, block.txdata.len() as u64 - 1, 0).unwrap()
92 /// The possible ways we may notify a ChannelManager of a new block
93 #[derive(Clone, Copy, Debug, PartialEq)]
94 pub enum ConnectStyle {
95 /// Calls `best_block_updated` first, detecting transactions in the block only after receiving
96 /// the header and height information.
98 /// The same as `BestBlockFirst`, however when we have multiple blocks to connect, we only
99 /// make a single `best_block_updated` call.
100 BestBlockFirstSkippingBlocks,
101 /// The same as `BestBlockFirst` when connecting blocks. During disconnection only
102 /// `transaction_unconfirmed` is called.
103 BestBlockFirstReorgsOnlyTip,
104 /// Calls `transactions_confirmed` first, detecting transactions in the block before updating
105 /// the header and height information.
107 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
108 /// make a single `best_block_updated` call.
109 TransactionsFirstSkippingBlocks,
110 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
111 /// make a single `best_block_updated` call. Further, we call `transactions_confirmed` multiple
112 /// times to ensure it's idempotent.
113 TransactionsDuplicativelyFirstSkippingBlocks,
114 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
115 /// make a single `best_block_updated` call. Further, we call `transactions_confirmed` multiple
116 /// times to ensure it's idempotent.
117 HighlyRedundantTransactionsFirstSkippingBlocks,
118 /// The same as `TransactionsFirst` when connecting blocks. During disconnection only
119 /// `transaction_unconfirmed` is called.
120 TransactionsFirstReorgsOnlyTip,
121 /// Provides the full block via the `chain::Listen` interface. In the current code this is
122 /// equivalent to `TransactionsFirst` with some additional assertions.
127 fn random_style() -> ConnectStyle {
128 #[cfg(feature = "std")] {
129 use core::hash::{BuildHasher, Hasher};
130 // Get a random value using the only std API to do so - the DefaultHasher
131 let rand_val = std::collections::hash_map::RandomState::new().build_hasher().finish();
132 let res = match rand_val % 9 {
133 0 => ConnectStyle::BestBlockFirst,
134 1 => ConnectStyle::BestBlockFirstSkippingBlocks,
135 2 => ConnectStyle::BestBlockFirstReorgsOnlyTip,
136 3 => ConnectStyle::TransactionsFirst,
137 4 => ConnectStyle::TransactionsFirstSkippingBlocks,
138 5 => ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks,
139 6 => ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks,
140 7 => ConnectStyle::TransactionsFirstReorgsOnlyTip,
141 8 => ConnectStyle::FullBlockViaListen,
144 eprintln!("Using Block Connection Style: {:?}", res);
147 #[cfg(not(feature = "std"))] {
148 ConnectStyle::FullBlockViaListen
153 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32) -> BlockHash {
154 let skip_intermediaries = match *node.connect_style.borrow() {
155 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks|
156 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks|ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|
157 ConnectStyle::BestBlockFirstReorgsOnlyTip|ConnectStyle::TransactionsFirstReorgsOnlyTip => true,
161 let height = node.best_block_info().1 + 1;
162 let mut block = Block {
163 header: BlockHeader { version: 0x2000000, prev_blockhash: node.best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: height, bits: 42, nonce: 42 },
168 let prev_blockhash = block.header.block_hash();
169 do_connect_block(node, block, skip_intermediaries);
171 header: BlockHeader { version: 0x20000000, prev_blockhash, merkle_root: TxMerkleNode::all_zeros(), time: height + i, bits: 42, nonce: 42 },
175 let hash = block.header.block_hash();
176 do_connect_block(node, block, false);
180 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block) {
181 do_connect_block(node, block.clone(), false);
184 fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
185 // Ensure `get_claimable_balances`' self-tests never panic
186 for funding_outpoint in node.chain_monitor.chain_monitor.list_monitors() {
187 node.chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances();
191 fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) {
192 call_claimable_balances(node);
193 let height = node.best_block_info().1 + 1;
194 #[cfg(feature = "std")] {
195 eprintln!("Connecting block using Block Connection Style: {:?}", *node.connect_style.borrow());
197 if !skip_intermediaries {
198 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
199 match *node.connect_style.borrow() {
200 ConnectStyle::BestBlockFirst|ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::BestBlockFirstReorgsOnlyTip => {
201 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
202 call_claimable_balances(node);
203 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
204 node.node.best_block_updated(&block.header, height);
205 node.node.transactions_confirmed(&block.header, &txdata, height);
207 ConnectStyle::TransactionsFirst|ConnectStyle::TransactionsFirstSkippingBlocks|
208 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks|ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|
209 ConnectStyle::TransactionsFirstReorgsOnlyTip => {
210 if *node.connect_style.borrow() == ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks {
211 let mut connections = Vec::new();
212 for (block, height) in node.blocks.lock().unwrap().iter() {
213 if !block.txdata.is_empty() {
214 // Reconnect all transactions we've ever seen to ensure transaction connection
215 // is *really* idempotent. This is a somewhat likely deployment for some
216 // esplora implementations of chain sync which try to reduce state and
217 // complexity as much as possible.
219 // Sadly we have to clone the block here to maintain lockorder. In the
220 // future we should consider Arc'ing the blocks to avoid this.
221 connections.push((block.clone(), *height));
224 for (old_block, height) in connections {
225 node.chain_monitor.chain_monitor.transactions_confirmed(&old_block.header,
226 &old_block.txdata.iter().enumerate().collect::<Vec<_>>(), height);
229 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
230 if *node.connect_style.borrow() == ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks {
231 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
233 call_claimable_balances(node);
234 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
235 node.node.transactions_confirmed(&block.header, &txdata, height);
236 node.node.best_block_updated(&block.header, height);
238 ConnectStyle::FullBlockViaListen => {
239 node.chain_monitor.chain_monitor.block_connected(&block, height);
240 node.node.block_connected(&block, height);
244 call_claimable_balances(node);
245 node.node.test_process_background_events();
246 node.blocks.lock().unwrap().push((block, height));
249 pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
250 call_claimable_balances(node);
251 #[cfg(feature = "std")] {
252 eprintln!("Disconnecting {} blocks using Block Connection Style: {:?}", count, *node.connect_style.borrow());
255 let orig = node.blocks.lock().unwrap().pop().unwrap();
256 assert!(orig.1 > 0); // Cannot disconnect genesis
257 let prev = node.blocks.lock().unwrap().last().unwrap().clone();
259 match *node.connect_style.borrow() {
260 ConnectStyle::FullBlockViaListen => {
261 node.chain_monitor.chain_monitor.block_disconnected(&orig.0.header, orig.1);
262 Listen::block_disconnected(node.node, &orig.0.header, orig.1);
264 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks|
265 ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks => {
267 node.chain_monitor.chain_monitor.best_block_updated(&prev.0.header, prev.1);
268 node.node.best_block_updated(&prev.0.header, prev.1);
271 ConnectStyle::BestBlockFirstReorgsOnlyTip|ConnectStyle::TransactionsFirstReorgsOnlyTip => {
272 for tx in orig.0.txdata {
273 node.chain_monitor.chain_monitor.transaction_unconfirmed(&tx.txid());
274 node.node.transaction_unconfirmed(&tx.txid());
278 node.chain_monitor.chain_monitor.best_block_updated(&prev.0.header, prev.1);
279 node.node.best_block_updated(&prev.0.header, prev.1);
282 call_claimable_balances(node);
286 pub fn disconnect_all_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
287 let count = node.blocks.lock().unwrap().len() as u32 - 1;
288 disconnect_blocks(node, count);
291 pub struct TestChanMonCfg {
292 pub tx_broadcaster: test_utils::TestBroadcaster,
293 pub fee_estimator: test_utils::TestFeeEstimator,
294 pub chain_source: test_utils::TestChainSource,
295 pub persister: test_utils::TestPersister,
296 pub logger: test_utils::TestLogger,
297 pub keys_manager: test_utils::TestKeysInterface,
300 pub struct NodeCfg<'a> {
301 pub chain_source: &'a test_utils::TestChainSource,
302 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
303 pub fee_estimator: &'a test_utils::TestFeeEstimator,
304 pub router: test_utils::TestRouter<'a>,
305 pub chain_monitor: test_utils::TestChainMonitor<'a>,
306 pub keys_manager: &'a test_utils::TestKeysInterface,
307 pub logger: &'a test_utils::TestLogger,
308 pub network_graph: Arc<NetworkGraph<&'a test_utils::TestLogger>>,
309 pub node_seed: [u8; 32],
310 pub features: InitFeatures,
313 pub struct Node<'a, 'b: 'a, 'c: 'b> {
314 pub chain_source: &'c test_utils::TestChainSource,
315 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
316 pub fee_estimator: &'c test_utils::TestFeeEstimator,
317 pub router: &'b test_utils::TestRouter<'c>,
318 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
319 pub keys_manager: &'b test_utils::TestKeysInterface,
320 pub node: &'a ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger>,
321 pub network_graph: &'a NetworkGraph<&'c test_utils::TestLogger>,
322 pub gossip_sync: P2PGossipSync<&'b NetworkGraph<&'c test_utils::TestLogger>, &'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
323 pub node_seed: [u8; 32],
324 pub network_payment_count: Rc<RefCell<u8>>,
325 pub network_chan_count: Rc<RefCell<u32>>,
326 pub logger: &'c test_utils::TestLogger,
327 pub blocks: Arc<Mutex<Vec<(Block, u32)>>>,
328 pub connect_style: Rc<RefCell<ConnectStyle>>,
330 impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
331 pub fn best_block_hash(&self) -> BlockHash {
332 self.blocks.lock().unwrap().last().unwrap().0.block_hash()
334 pub fn best_block_info(&self) -> (BlockHash, u32) {
335 self.blocks.lock().unwrap().last().map(|(a, b)| (a.block_hash(), *b)).unwrap()
337 pub fn get_block_header(&self, height: u32) -> BlockHeader {
338 self.blocks.lock().unwrap()[height as usize].0.header
342 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
345 // Check that we processed all pending events
346 let msg_events = self.node.get_and_clear_pending_msg_events();
347 if !msg_events.is_empty() {
348 panic!("Had excess message events on node {}: {:?}", self.logger.id, msg_events);
350 let events = self.node.get_and_clear_pending_events();
351 if !events.is_empty() {
352 panic!("Had excess events on node {}: {:?}", self.logger.id, events);
354 let added_monitors = self.chain_monitor.added_monitors.lock().unwrap().split_off(0);
355 if !added_monitors.is_empty() {
356 panic!("Had {} excess added monitors on node {}", added_monitors.len(), self.logger.id);
359 // Check that if we serialize the network graph, we can deserialize it again.
360 let network_graph = {
361 let mut w = test_utils::TestVecWriter(Vec::new());
362 self.network_graph.write(&mut w).unwrap();
363 let network_graph_deser = <NetworkGraph<_>>::read(&mut io::Cursor::new(&w.0), self.logger).unwrap();
364 assert!(network_graph_deser == *self.network_graph);
365 let gossip_sync = P2PGossipSync::new(
366 &network_graph_deser, Some(self.chain_source), self.logger
368 let mut chan_progress = 0;
370 let orig_announcements = self.gossip_sync.get_next_channel_announcement(chan_progress);
371 let deserialized_announcements = gossip_sync.get_next_channel_announcement(chan_progress);
372 assert!(orig_announcements == deserialized_announcements);
373 chan_progress = match orig_announcements {
374 Some(announcement) => announcement.0.contents.short_channel_id + 1,
378 let mut node_progress = None;
380 let orig_announcements = self.gossip_sync.get_next_node_announcement(node_progress.as_ref());
381 let deserialized_announcements = gossip_sync.get_next_node_announcement(node_progress.as_ref());
382 assert!(orig_announcements == deserialized_announcements);
383 node_progress = match orig_announcements {
384 Some(announcement) => Some(announcement.contents.node_id),
391 // Check that if we serialize and then deserialize all our channel monitors we get the
392 // same set of outputs to watch for on chain as we have now. Note that if we write
393 // tests that fully close channels and remove the monitors at some point this may break.
394 let feeest = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
395 let mut deserialized_monitors = Vec::new();
397 for outpoint in self.chain_monitor.chain_monitor.list_monitors() {
398 let mut w = test_utils::TestVecWriter(Vec::new());
399 self.chain_monitor.chain_monitor.get_monitor(outpoint).unwrap().write(&mut w).unwrap();
400 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
401 &mut io::Cursor::new(&w.0), self.keys_manager).unwrap();
402 deserialized_monitors.push(deserialized_monitor);
406 let broadcaster = test_utils::TestBroadcaster {
407 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone()),
408 blocks: Arc::new(Mutex::new(self.tx_broadcaster.blocks.lock().unwrap().clone())),
411 // Before using all the new monitors to check the watch outpoints, use the full set of
412 // them to ensure we can write and reload our ChannelManager.
414 let mut channel_monitors = HashMap::new();
415 for monitor in deserialized_monitors.iter_mut() {
416 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
419 let mut w = test_utils::TestVecWriter(Vec::new());
420 self.node.write(&mut w).unwrap();
421 <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut io::Cursor::new(w.0), ChannelManagerReadArgs {
422 default_config: *self.node.get_current_default_configuration(),
423 keys_manager: self.keys_manager,
424 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) },
425 router: &test_utils::TestRouter::new(Arc::new(network_graph)),
426 chain_monitor: self.chain_monitor,
427 tx_broadcaster: &broadcaster,
428 logger: &self.logger,
433 let persister = test_utils::TestPersister::new();
434 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
435 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister, &self.keys_manager);
436 for deserialized_monitor in deserialized_monitors.drain(..) {
437 if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != ChannelMonitorUpdateStatus::Completed {
441 assert_eq!(*chain_source.watched_txn.lock().unwrap(), *self.chain_source.watched_txn.lock().unwrap());
442 assert_eq!(*chain_source.watched_outputs.lock().unwrap(), *self.chain_source.watched_outputs.lock().unwrap());
447 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) {
448 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
451 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) {
452 let (channel_ready, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
453 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &channel_ready);
454 (announcement, as_update, bs_update, channel_id, tx)
458 /// Gets an RAA and CS which were sent in response to a commitment update
459 macro_rules! get_revoke_commit_msgs {
460 ($node: expr, $node_id: expr) => {
462 use $crate::util::events::MessageSendEvent;
463 let events = $node.node.get_and_clear_pending_msg_events();
464 assert_eq!(events.len(), 2);
466 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
467 assert_eq!(*node_id, $node_id);
470 _ => panic!("Unexpected event"),
472 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
473 assert_eq!(*node_id, $node_id);
474 assert!(updates.update_add_htlcs.is_empty());
475 assert!(updates.update_fulfill_htlcs.is_empty());
476 assert!(updates.update_fail_htlcs.is_empty());
477 assert!(updates.update_fail_malformed_htlcs.is_empty());
478 assert!(updates.update_fee.is_none());
479 updates.commitment_signed.clone()
481 _ => panic!("Unexpected event"),
487 /// Get an specific event message from the pending events queue.
489 macro_rules! get_event_msg {
490 ($node: expr, $event_type: path, $node_id: expr) => {
492 let events = $node.node.get_and_clear_pending_msg_events();
493 assert_eq!(events.len(), 1);
495 $event_type { ref node_id, ref msg } => {
496 assert_eq!(*node_id, $node_id);
499 _ => panic!("Unexpected event"),
505 /// Get an error message from the pending events queue.
507 macro_rules! get_err_msg {
508 ($node: expr, $node_id: expr) => {
510 let events = $node.node.get_and_clear_pending_msg_events();
511 assert_eq!(events.len(), 1);
513 $crate::util::events::MessageSendEvent::HandleError {
514 action: $crate::ln::msgs::ErrorAction::SendErrorMessage { ref msg }, ref node_id
516 assert_eq!(*node_id, $node_id);
519 _ => panic!("Unexpected event"),
525 /// Get a specific event from the pending events queue.
527 macro_rules! get_event {
528 ($node: expr, $event_type: path) => {
530 let mut events = $node.node.get_and_clear_pending_events();
531 assert_eq!(events.len(), 1);
532 let ev = events.pop().unwrap();
534 $event_type { .. } => {
537 _ => panic!("Unexpected event"),
544 /// Gets an UpdateHTLCs MessageSendEvent
545 macro_rules! get_htlc_update_msgs {
546 ($node: expr, $node_id: expr) => {
548 let events = $node.node.get_and_clear_pending_msg_events();
549 assert_eq!(events.len(), 1);
551 $crate::util::events::MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
552 assert_eq!(*node_id, $node_id);
555 _ => panic!("Unexpected event"),
561 /// Fetches the first `msg_event` to the passed `node_id` in the passed `msg_events` vec.
562 /// Returns the `msg_event`, along with an updated `msg_events` vec with the message removed.
564 /// Note that even though `BroadcastChannelAnnouncement` and `BroadcastChannelUpdate`
565 /// `msg_events` are stored under specific peers, this function does not fetch such `msg_events` as
566 /// such messages are intended to all peers.
567 pub fn remove_first_msg_event_to_node(msg_node_id: &PublicKey, msg_events: &Vec<MessageSendEvent>) -> (MessageSendEvent, Vec<MessageSendEvent>) {
568 let ev_index = msg_events.iter().position(|e| { match e {
569 MessageSendEvent::SendAcceptChannel { node_id, .. } => {
570 node_id == msg_node_id
572 MessageSendEvent::SendOpenChannel { node_id, .. } => {
573 node_id == msg_node_id
575 MessageSendEvent::SendFundingCreated { node_id, .. } => {
576 node_id == msg_node_id
578 MessageSendEvent::SendFundingSigned { node_id, .. } => {
579 node_id == msg_node_id
581 MessageSendEvent::SendChannelReady { node_id, .. } => {
582 node_id == msg_node_id
584 MessageSendEvent::SendAnnouncementSignatures { node_id, .. } => {
585 node_id == msg_node_id
587 MessageSendEvent::UpdateHTLCs { node_id, .. } => {
588 node_id == msg_node_id
590 MessageSendEvent::SendRevokeAndACK { node_id, .. } => {
591 node_id == msg_node_id
593 MessageSendEvent::SendClosingSigned { node_id, .. } => {
594 node_id == msg_node_id
596 MessageSendEvent::SendShutdown { node_id, .. } => {
597 node_id == msg_node_id
599 MessageSendEvent::SendChannelReestablish { node_id, .. } => {
600 node_id == msg_node_id
602 MessageSendEvent::SendChannelAnnouncement { node_id, .. } => {
603 node_id == msg_node_id
605 MessageSendEvent::BroadcastChannelAnnouncement { .. } => {
608 MessageSendEvent::BroadcastChannelUpdate { .. } => {
611 MessageSendEvent::SendChannelUpdate { node_id, .. } => {
612 node_id == msg_node_id
614 MessageSendEvent::HandleError { node_id, .. } => {
615 node_id == msg_node_id
617 MessageSendEvent::SendChannelRangeQuery { node_id, .. } => {
618 node_id == msg_node_id
620 MessageSendEvent::SendShortIdsQuery { node_id, .. } => {
621 node_id == msg_node_id
623 MessageSendEvent::SendReplyChannelRange { node_id, .. } => {
624 node_id == msg_node_id
626 MessageSendEvent::SendGossipTimestampFilter { node_id, .. } => {
627 node_id == msg_node_id
630 if ev_index.is_some() {
631 let mut updated_msg_events = msg_events.to_vec();
632 let ev = updated_msg_events.remove(ev_index.unwrap());
633 (ev, updated_msg_events)
635 panic!("Couldn't find any MessageSendEvent to the node!")
640 macro_rules! get_channel_ref {
641 ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
643 $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
644 $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
645 $peer_state_lock.channel_by_id.get_mut(&$channel_id).unwrap()
651 macro_rules! get_feerate {
652 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
654 let mut per_peer_state_lock;
655 let mut peer_state_lock;
656 let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
663 macro_rules! get_opt_anchors {
664 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
666 let mut per_peer_state_lock;
667 let mut peer_state_lock;
668 let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
674 /// Returns a channel monitor given a channel id, making some naive assumptions
676 macro_rules! get_monitor {
677 ($node: expr, $channel_id: expr) => {
679 use bitcoin::hashes::Hash;
680 let mut monitor = None;
681 // Assume funding vout is either 0 or 1 blindly
683 if let Ok(mon) = $node.chain_monitor.chain_monitor.get_monitor(
684 $crate::chain::transaction::OutPoint {
685 txid: bitcoin::Txid::from_slice(&$channel_id[..]).unwrap(), index
697 /// Returns any local commitment transactions for the channel.
699 macro_rules! get_local_commitment_txn {
700 ($node: expr, $channel_id: expr) => {
702 $crate::get_monitor!($node, $channel_id).unsafe_get_latest_holder_commitment_txn(&$node.logger)
707 /// Check the error from attempting a payment.
709 macro_rules! unwrap_send_err {
710 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
712 &Err(PaymentSendFailure::AllFailedResendSafe(ref fails)) if $all_failed => {
713 assert_eq!(fails.len(), 1);
719 &Err(PaymentSendFailure::PartialFailure { ref results, .. }) if !$all_failed => {
720 assert_eq!(results.len(), 1);
722 Err($type) => { $check },
731 /// Check whether N channel monitor(s) have been added.
733 macro_rules! check_added_monitors {
734 ($node: expr, $count: expr) => {
736 let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
737 assert_eq!(added_monitors.len(), $count);
738 added_monitors.clear();
743 pub fn _reload_node<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, default_config: UserConfig, chanman_encoded: &[u8], monitors_encoded: &[&[u8]]) -> ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger> {
744 let mut monitors_read = Vec::with_capacity(monitors_encoded.len());
745 for encoded in monitors_encoded {
746 let mut monitor_read = &encoded[..];
747 let (_, monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>
748 ::read(&mut monitor_read, node.keys_manager).unwrap();
749 assert!(monitor_read.is_empty());
750 monitors_read.push(monitor);
753 let mut node_read = &chanman_encoded[..];
754 let (_, node_deserialized) = {
755 let mut channel_monitors = HashMap::new();
756 for monitor in monitors_read.iter_mut() {
757 assert!(channel_monitors.insert(monitor.get_funding_txo().0, monitor).is_none());
759 <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut node_read, ChannelManagerReadArgs {
761 keys_manager: node.keys_manager,
762 fee_estimator: node.fee_estimator,
764 chain_monitor: node.chain_monitor,
765 tx_broadcaster: node.tx_broadcaster,
770 assert!(node_read.is_empty());
772 for monitor in monitors_read.drain(..) {
773 assert_eq!(node.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor),
774 ChannelMonitorUpdateStatus::Completed);
775 check_added_monitors!(node, 1);
782 macro_rules! reload_node {
783 ($node: expr, $new_config: expr, $chanman_encoded: expr, $monitors_encoded: expr, $persister: ident, $new_chain_monitor: ident, $new_channelmanager: ident) => {
784 let chanman_encoded = $chanman_encoded;
786 $persister = test_utils::TestPersister::new();
787 $new_chain_monitor = test_utils::TestChainMonitor::new(Some($node.chain_source), $node.tx_broadcaster.clone(), $node.logger, $node.fee_estimator, &$persister, &$node.keys_manager);
788 $node.chain_monitor = &$new_chain_monitor;
790 $new_channelmanager = _reload_node(&$node, $new_config, &chanman_encoded, $monitors_encoded);
791 $node.node = &$new_channelmanager;
793 ($node: expr, $chanman_encoded: expr, $monitors_encoded: expr, $persister: ident, $new_chain_monitor: ident, $new_channelmanager: ident) => {
794 reload_node!($node, $crate::util::config::UserConfig::default(), $chanman_encoded, $monitors_encoded, $persister, $new_chain_monitor, $new_channelmanager);
798 pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_counterparty_node_id: &PublicKey, expected_chan_value: u64, expected_user_chan_id: u128) -> ([u8; 32], Transaction, OutPoint) {
799 let chan_id = *node.network_chan_count.borrow();
801 let events = node.node.get_and_clear_pending_events();
802 assert_eq!(events.len(), 1);
804 Event::FundingGenerationReady { ref temporary_channel_id, ref counterparty_node_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
805 assert_eq!(counterparty_node_id, expected_counterparty_node_id);
806 assert_eq!(*channel_value_satoshis, expected_chan_value);
807 assert_eq!(user_channel_id, expected_user_chan_id);
809 let tx = Transaction { version: chan_id as i32, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: vec![TxOut {
810 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
812 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
813 (*temporary_channel_id, tx, funding_outpoint)
815 _ => panic!("Unexpected event"),
818 pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, expected_temporary_channel_id: [u8; 32]) -> Transaction {
819 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, &node_b.node.get_our_node_id(), channel_value, 42);
820 assert_eq!(temporary_channel_id, expected_temporary_channel_id);
822 assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, &node_b.node.get_our_node_id(), tx.clone()).is_ok());
823 check_added_monitors!(node_a, 0);
825 let funding_created_msg = get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id());
826 assert_eq!(funding_created_msg.temporary_channel_id, expected_temporary_channel_id);
827 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &funding_created_msg);
829 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
830 assert_eq!(added_monitors.len(), 1);
831 assert_eq!(added_monitors[0].0, funding_output);
832 added_monitors.clear();
835 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()));
837 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
838 assert_eq!(added_monitors.len(), 1);
839 assert_eq!(added_monitors[0].0, funding_output);
840 added_monitors.clear();
843 let events_4 = node_a.node.get_and_clear_pending_events();
844 assert_eq!(events_4.len(), 0);
846 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
847 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap()[0], tx);
848 node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
850 // Ensure that funding_transaction_generated is idempotent.
851 assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, &node_b.node.get_our_node_id(), tx.clone()).is_err());
852 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
853 check_added_monitors!(node_a, 0);
858 // Receiver must have been initialized with manually_accept_inbound_channels set to true.
859 pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, receiver: &'a Node<'b, 'c, 'd>, initiator_config: Option<UserConfig>) -> (bitcoin::Transaction, [u8; 32]) {
860 let initiator_channels = initiator.node.list_usable_channels().len();
861 let receiver_channels = receiver.node.list_usable_channels().len();
863 initiator.node.create_channel(receiver.node.get_our_node_id(), 100_000, 10_001, 42, initiator_config).unwrap();
864 let open_channel = get_event_msg!(initiator, MessageSendEvent::SendOpenChannel, receiver.node.get_our_node_id());
866 receiver.node.handle_open_channel(&initiator.node.get_our_node_id(), channelmanager::provided_init_features(), &open_channel);
867 let events = receiver.node.get_and_clear_pending_events();
868 assert_eq!(events.len(), 1);
870 Event::OpenChannelRequest { temporary_channel_id, .. } => {
871 receiver.node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &initiator.node.get_our_node_id(), 0).unwrap();
873 _ => panic!("Unexpected event"),
876 let accept_channel = get_event_msg!(receiver, MessageSendEvent::SendAcceptChannel, initiator.node.get_our_node_id());
877 assert_eq!(accept_channel.minimum_depth, 0);
878 initiator.node.handle_accept_channel(&receiver.node.get_our_node_id(), channelmanager::provided_init_features(), &accept_channel);
880 let (temporary_channel_id, tx, _) = create_funding_transaction(&initiator, &receiver.node.get_our_node_id(), 100_000, 42);
881 initiator.node.funding_transaction_generated(&temporary_channel_id, &receiver.node.get_our_node_id(), tx.clone()).unwrap();
882 let funding_created = get_event_msg!(initiator, MessageSendEvent::SendFundingCreated, receiver.node.get_our_node_id());
884 receiver.node.handle_funding_created(&initiator.node.get_our_node_id(), &funding_created);
885 check_added_monitors!(receiver, 1);
886 let bs_signed_locked = receiver.node.get_and_clear_pending_msg_events();
887 assert_eq!(bs_signed_locked.len(), 2);
888 let as_channel_ready;
889 match &bs_signed_locked[0] {
890 MessageSendEvent::SendFundingSigned { node_id, msg } => {
891 assert_eq!(*node_id, initiator.node.get_our_node_id());
892 initiator.node.handle_funding_signed(&receiver.node.get_our_node_id(), &msg);
893 check_added_monitors!(initiator, 1);
895 assert_eq!(initiator.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
896 assert_eq!(initiator.tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0)[0], tx);
898 as_channel_ready = get_event_msg!(initiator, MessageSendEvent::SendChannelReady, receiver.node.get_our_node_id());
900 _ => panic!("Unexpected event"),
902 match &bs_signed_locked[1] {
903 MessageSendEvent::SendChannelReady { node_id, msg } => {
904 assert_eq!(*node_id, initiator.node.get_our_node_id());
905 initiator.node.handle_channel_ready(&receiver.node.get_our_node_id(), &msg);
907 _ => panic!("Unexpected event"),
910 receiver.node.handle_channel_ready(&initiator.node.get_our_node_id(), &as_channel_ready);
912 let as_channel_update = get_event_msg!(initiator, MessageSendEvent::SendChannelUpdate, receiver.node.get_our_node_id());
913 let bs_channel_update = get_event_msg!(receiver, MessageSendEvent::SendChannelUpdate, initiator.node.get_our_node_id());
915 initiator.node.handle_channel_update(&receiver.node.get_our_node_id(), &bs_channel_update);
916 receiver.node.handle_channel_update(&initiator.node.get_our_node_id(), &as_channel_update);
918 assert_eq!(initiator.node.list_usable_channels().len(), initiator_channels + 1);
919 assert_eq!(receiver.node.list_usable_channels().len(), receiver_channels + 1);
921 expect_channel_ready_event(&initiator, &receiver.node.get_our_node_id());
922 expect_channel_ready_event(&receiver, &initiator.node.get_our_node_id());
924 (tx, as_channel_ready.channel_id)
927 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 {
928 let create_chan_id = node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
929 let open_channel_msg = get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id());
930 assert_eq!(open_channel_msg.temporary_channel_id, create_chan_id);
931 assert_eq!(node_a.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 42);
932 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &open_channel_msg);
933 let accept_channel_msg = get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id());
934 assert_eq!(accept_channel_msg.temporary_channel_id, create_chan_id);
935 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &accept_channel_msg);
936 assert_ne!(node_b.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 0);
938 sign_funding_transaction(node_a, node_b, channel_value, create_chan_id)
941 pub fn create_chan_between_nodes_with_value_confirm_first<'a, 'b, 'c, 'd>(node_recv: &'a Node<'b, 'c, 'c>, node_conf: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) {
942 confirm_transaction_at(node_conf, tx, conf_height);
943 connect_blocks(node_conf, CHAN_CONFIRM_DEPTH - 1);
944 node_recv.node.handle_channel_ready(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendChannelReady, node_recv.node.get_our_node_id()));
947 pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
949 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
950 assert_eq!(events_6.len(), 3);
951 let announcement_sigs_idx = if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[1] {
952 assert_eq!(*node_id, node_recv.node.get_our_node_id());
954 } else if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[2] {
955 assert_eq!(*node_id, node_recv.node.get_our_node_id());
957 } else { panic!("Unexpected event: {:?}", events_6[1]); };
958 ((match events_6[0] {
959 MessageSendEvent::SendChannelReady { ref node_id, ref msg } => {
960 channel_id = msg.channel_id.clone();
961 assert_eq!(*node_id, node_recv.node.get_our_node_id());
964 _ => panic!("Unexpected event"),
965 }, match events_6[announcement_sigs_idx] {
966 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
967 assert_eq!(*node_id, node_recv.node.get_our_node_id());
970 _ => panic!("Unexpected event"),
974 pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
975 let conf_height = core::cmp::max(node_a.best_block_info().1 + 1, node_b.best_block_info().1 + 1);
976 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx, conf_height);
977 confirm_transaction_at(node_a, tx, conf_height);
978 connect_blocks(node_a, CHAN_CONFIRM_DEPTH - 1);
979 expect_channel_ready_event(&node_a, &node_b.node.get_our_node_id());
980 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
983 pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
984 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
985 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
989 pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, as_funding_msgs: &(msgs::ChannelReady, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
990 node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
991 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
992 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
994 let events_7 = node_b.node.get_and_clear_pending_msg_events();
995 assert_eq!(events_7.len(), 1);
996 let (announcement, bs_update) = match events_7[0] {
997 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
1000 _ => panic!("Unexpected event"),
1003 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
1004 let events_8 = node_a.node.get_and_clear_pending_msg_events();
1005 assert_eq!(events_8.len(), 1);
1006 let as_update = match events_8[0] {
1007 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
1008 assert!(*announcement == *msg);
1009 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
1010 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
1013 _ => panic!("Unexpected event"),
1016 *node_a.network_chan_count.borrow_mut() += 1;
1018 expect_channel_ready_event(&node_b, &node_a.node.get_our_node_id());
1019 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
1022 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) {
1023 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
1026 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) {
1027 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
1028 update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
1029 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
1032 pub fn create_unannounced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelReady, Transaction) {
1033 let mut no_announce_cfg = test_default_channel_config();
1034 no_announce_cfg.channel_handshake_config.announced_channel = false;
1035 nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, Some(no_announce_cfg)).unwrap();
1036 let open_channel = get_event_msg!(nodes[a], MessageSendEvent::SendOpenChannel, nodes[b].node.get_our_node_id());
1037 nodes[b].node.handle_open_channel(&nodes[a].node.get_our_node_id(), a_flags, &open_channel);
1038 let accept_channel = get_event_msg!(nodes[b], MessageSendEvent::SendAcceptChannel, nodes[a].node.get_our_node_id());
1039 nodes[a].node.handle_accept_channel(&nodes[b].node.get_our_node_id(), b_flags, &accept_channel);
1041 let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[a], &nodes[b].node.get_our_node_id(), channel_value, 42);
1042 nodes[a].node.funding_transaction_generated(&temporary_channel_id, &nodes[b].node.get_our_node_id(), tx.clone()).unwrap();
1043 nodes[b].node.handle_funding_created(&nodes[a].node.get_our_node_id(), &get_event_msg!(nodes[a], MessageSendEvent::SendFundingCreated, nodes[b].node.get_our_node_id()));
1044 check_added_monitors!(nodes[b], 1);
1046 let cs_funding_signed = get_event_msg!(nodes[b], MessageSendEvent::SendFundingSigned, nodes[a].node.get_our_node_id());
1047 nodes[a].node.handle_funding_signed(&nodes[b].node.get_our_node_id(), &cs_funding_signed);
1048 check_added_monitors!(nodes[a], 1);
1050 let conf_height = core::cmp::max(nodes[a].best_block_info().1 + 1, nodes[b].best_block_info().1 + 1);
1051 confirm_transaction_at(&nodes[a], &tx, conf_height);
1052 connect_blocks(&nodes[a], CHAN_CONFIRM_DEPTH - 1);
1053 confirm_transaction_at(&nodes[b], &tx, conf_height);
1054 connect_blocks(&nodes[b], CHAN_CONFIRM_DEPTH - 1);
1055 let as_channel_ready = get_event_msg!(nodes[a], MessageSendEvent::SendChannelReady, nodes[b].node.get_our_node_id());
1056 nodes[a].node.handle_channel_ready(&nodes[b].node.get_our_node_id(), &get_event_msg!(nodes[b], MessageSendEvent::SendChannelReady, nodes[a].node.get_our_node_id()));
1057 expect_channel_ready_event(&nodes[a], &nodes[b].node.get_our_node_id());
1058 let as_update = get_event_msg!(nodes[a], MessageSendEvent::SendChannelUpdate, nodes[b].node.get_our_node_id());
1059 nodes[b].node.handle_channel_ready(&nodes[a].node.get_our_node_id(), &as_channel_ready);
1060 expect_channel_ready_event(&nodes[b], &nodes[a].node.get_our_node_id());
1061 let bs_update = get_event_msg!(nodes[b], MessageSendEvent::SendChannelUpdate, nodes[a].node.get_our_node_id());
1063 nodes[a].node.handle_channel_update(&nodes[b].node.get_our_node_id(), &bs_update);
1064 nodes[b].node.handle_channel_update(&nodes[a].node.get_our_node_id(), &as_update);
1066 let mut found_a = false;
1067 for chan in nodes[a].node.list_usable_channels() {
1068 if chan.channel_id == as_channel_ready.channel_id {
1071 assert!(!chan.is_public);
1076 let mut found_b = false;
1077 for chan in nodes[b].node.list_usable_channels() {
1078 if chan.channel_id == as_channel_ready.channel_id {
1081 assert!(!chan.is_public);
1086 (as_channel_ready, tx)
1089 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) {
1091 assert!(node.gossip_sync.handle_channel_announcement(ann).unwrap());
1092 node.gossip_sync.handle_channel_update(upd_1).unwrap();
1093 node.gossip_sync.handle_channel_update(upd_2).unwrap();
1095 // Note that channel_updates are also delivered to ChannelManagers to ensure we have
1096 // forwarding info for local channels even if its not accepted in the network graph.
1097 node.node.handle_channel_update(&nodes[a].node.get_our_node_id(), &upd_1);
1098 node.node.handle_channel_update(&nodes[b].node.get_our_node_id(), &upd_2);
1103 macro_rules! check_spends {
1104 ($tx: expr, $($spends_txn: expr),*) => {
1107 for outp in $spends_txn.output.iter() {
1108 assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Input tx output didn't meet dust limit");
1111 for outp in $tx.output.iter() {
1112 assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Spending tx output didn't meet dust limit");
1114 let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
1116 if out_point.txid == $spends_txn.txid() {
1117 return $spends_txn.output.get(out_point.vout as usize).cloned()
1122 let mut total_value_in = 0;
1123 for input in $tx.input.iter() {
1124 total_value_in += get_output(&input.previous_output).unwrap().value;
1126 let mut total_value_out = 0;
1127 for output in $tx.output.iter() {
1128 total_value_out += output.value;
1130 let min_fee = ($tx.weight() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
1131 // Input amount - output amount = fee, so check that out + min_fee is smaller than input
1132 assert!(total_value_out + min_fee <= total_value_in);
1133 $tx.verify(get_output).unwrap();
1138 macro_rules! get_closing_signed_broadcast {
1139 ($node: expr, $dest_pubkey: expr) => {
1141 let events = $node.get_and_clear_pending_msg_events();
1142 assert!(events.len() == 1 || events.len() == 2);
1143 (match events[events.len() - 1] {
1144 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1145 assert_eq!(msg.contents.flags & 2, 2);
1148 _ => panic!("Unexpected event"),
1149 }, if events.len() == 2 {
1151 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
1152 assert_eq!(*node_id, $dest_pubkey);
1155 _ => panic!("Unexpected event"),
1163 macro_rules! check_warn_msg {
1164 ($node: expr, $recipient_node_id: expr, $chan_id: expr) => {{
1165 let msg_events = $node.node.get_and_clear_pending_msg_events();
1166 assert_eq!(msg_events.len(), 1);
1167 match msg_events[0] {
1168 MessageSendEvent::HandleError { action: ErrorAction::SendWarningMessage { ref msg, log_level: _ }, node_id } => {
1169 assert_eq!(node_id, $recipient_node_id);
1170 assert_eq!(msg.channel_id, $chan_id);
1173 _ => panic!("Unexpected event"),
1178 /// Check that a channel's closing channel update has been broadcasted, and optionally
1179 /// check whether an error message event has occurred.
1181 macro_rules! check_closed_broadcast {
1182 ($node: expr, $with_error_msg: expr) => {{
1183 use $crate::util::events::MessageSendEvent;
1184 use $crate::ln::msgs::ErrorAction;
1186 let msg_events = $node.node.get_and_clear_pending_msg_events();
1187 assert_eq!(msg_events.len(), if $with_error_msg { 2 } else { 1 });
1188 match msg_events[0] {
1189 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1190 assert_eq!(msg.contents.flags & 2, 2);
1192 _ => panic!("Unexpected event"),
1194 if $with_error_msg {
1195 match msg_events[1] {
1196 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
1197 // TODO: Check node_id
1200 _ => panic!("Unexpected event"),
1206 /// Check that a channel's closing channel events has been issued
1208 macro_rules! check_closed_event {
1209 ($node: expr, $events: expr, $reason: expr) => {
1210 check_closed_event!($node, $events, $reason, false);
1212 ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr) => {{
1213 use $crate::util::events::Event;
1215 let events = $node.node.get_and_clear_pending_events();
1216 assert_eq!(events.len(), $events, "{:?}", events);
1217 let expected_reason = $reason;
1218 let mut issues_discard_funding = false;
1219 for event in events {
1221 Event::ChannelClosed { ref reason, .. } => {
1222 assert_eq!(*reason, expected_reason);
1224 Event::DiscardFunding { .. } => {
1225 issues_discard_funding = true;
1227 _ => panic!("Unexpected event"),
1230 assert_eq!($is_check_discard_funding, issues_discard_funding);
1234 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) {
1235 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) };
1236 let (node_b, broadcaster_b, struct_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) } else { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) };
1239 node_a.close_channel(channel_id, &node_b.get_our_node_id()).unwrap();
1240 node_b.handle_shutdown(&node_a.get_our_node_id(), &channelmanager::provided_init_features(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
1242 let events_1 = node_b.get_and_clear_pending_msg_events();
1243 assert!(events_1.len() >= 1);
1244 let shutdown_b = match events_1[0] {
1245 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
1246 assert_eq!(node_id, &node_a.get_our_node_id());
1249 _ => panic!("Unexpected event"),
1252 let closing_signed_b = if !close_inbound_first {
1253 assert_eq!(events_1.len(), 1);
1256 Some(match events_1[1] {
1257 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
1258 assert_eq!(node_id, &node_a.get_our_node_id());
1261 _ => panic!("Unexpected event"),
1265 node_a.handle_shutdown(&node_b.get_our_node_id(), &channelmanager::provided_init_features(), &shutdown_b);
1266 let (as_update, bs_update) = if close_inbound_first {
1267 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
1268 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
1270 node_b.handle_closing_signed(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id()));
1271 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
1272 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
1273 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
1275 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
1276 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
1277 assert!(none_a.is_none());
1278 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
1279 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
1280 (as_update, bs_update)
1282 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
1284 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
1285 node_a.handle_closing_signed(&node_b.get_our_node_id(), &get_event_msg!(struct_b, MessageSendEvent::SendClosingSigned, node_a.get_our_node_id()));
1287 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
1288 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
1289 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
1291 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
1292 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
1293 assert!(none_b.is_none());
1294 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
1295 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
1296 (as_update, bs_update)
1298 assert_eq!(tx_a, tx_b);
1299 check_spends!(tx_a, funding_tx);
1301 (as_update, bs_update, tx_a)
1304 pub struct SendEvent {
1305 pub node_id: PublicKey,
1306 pub msgs: Vec<msgs::UpdateAddHTLC>,
1307 pub commitment_msg: msgs::CommitmentSigned,
1310 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
1311 assert!(updates.update_fulfill_htlcs.is_empty());
1312 assert!(updates.update_fail_htlcs.is_empty());
1313 assert!(updates.update_fail_malformed_htlcs.is_empty());
1314 assert!(updates.update_fee.is_none());
1315 SendEvent { node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
1318 pub fn from_event(event: MessageSendEvent) -> SendEvent {
1320 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
1321 _ => panic!("Unexpected event type!"),
1325 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
1326 let mut events = node.node.get_and_clear_pending_msg_events();
1327 assert_eq!(events.len(), 1);
1328 SendEvent::from_event(events.pop().unwrap())
1333 /// Performs the "commitment signed dance" - the series of message exchanges which occur after a
1334 /// commitment update.
1335 macro_rules! commitment_signed_dance {
1336 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
1338 check_added_monitors!($node_a, 0);
1339 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1340 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
1341 check_added_monitors!($node_a, 1);
1342 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
1345 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
1347 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
1348 check_added_monitors!($node_b, 0);
1349 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
1350 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
1351 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
1352 check_added_monitors!($node_b, 1);
1353 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
1354 let (bs_revoke_and_ack, extra_msg_option) = {
1355 let events = $node_b.node.get_and_clear_pending_msg_events();
1356 assert!(events.len() <= 2);
1357 let (node_a_event, events) = remove_first_msg_event_to_node(&$node_a.node.get_our_node_id(), &events);
1358 (match node_a_event {
1359 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1360 assert_eq!(*node_id, $node_a.node.get_our_node_id());
1363 _ => panic!("Unexpected event"),
1364 }, events.get(0).map(|e| e.clone()))
1366 check_added_monitors!($node_b, 1);
1367 if $fail_backwards {
1368 assert!($node_a.node.get_and_clear_pending_events().is_empty());
1369 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1371 (extra_msg_option, bs_revoke_and_ack)
1374 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
1376 check_added_monitors!($node_a, 0);
1377 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1378 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
1379 check_added_monitors!($node_a, 1);
1380 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
1381 assert!(extra_msg_option.is_none());
1385 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
1387 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
1388 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1389 check_added_monitors!($node_a, 1);
1393 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
1395 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
1398 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
1400 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
1401 if $fail_backwards {
1402 expect_pending_htlcs_forwardable_and_htlc_handling_failed!($node_a, vec![$crate::util::events::HTLCDestination::NextHopChannel{ node_id: Some($node_b.node.get_our_node_id()), channel_id: $commitment_signed.channel_id }]);
1403 check_added_monitors!($node_a, 1);
1405 let node_a_per_peer_state = $node_a.node.per_peer_state.read().unwrap();
1406 let mut number_of_msg_events = 0;
1407 for (cp_id, peer_state_mutex) in node_a_per_peer_state.iter() {
1408 let peer_state = peer_state_mutex.lock().unwrap();
1409 let cp_pending_msg_events = &peer_state.pending_msg_events;
1410 number_of_msg_events += cp_pending_msg_events.len();
1411 if cp_pending_msg_events.len() == 1 {
1412 if let MessageSendEvent::UpdateHTLCs { .. } = cp_pending_msg_events[0] {
1413 assert_ne!(*cp_id, $node_b.node.get_our_node_id());
1414 } else { panic!("Unexpected event"); }
1417 // Expecting the failure backwards event to the previous hop (not `node_b`)
1418 assert_eq!(number_of_msg_events, 1);
1420 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1426 /// Get a payment preimage and hash.
1428 macro_rules! get_payment_preimage_hash {
1429 ($dest_node: expr) => {
1431 get_payment_preimage_hash!($dest_node, None)
1434 ($dest_node: expr, $min_value_msat: expr) => {
1436 use bitcoin::hashes::Hash as _;
1437 let mut payment_count = $dest_node.network_payment_count.borrow_mut();
1438 let payment_preimage = $crate::ln::PaymentPreimage([*payment_count; 32]);
1439 *payment_count += 1;
1440 let payment_hash = $crate::ln::PaymentHash(
1441 bitcoin::hashes::sha256::Hash::hash(&payment_preimage.0[..]).into_inner());
1442 let payment_secret = $dest_node.node.create_inbound_payment_for_hash(payment_hash, $min_value_msat, 7200).unwrap();
1443 (payment_preimage, payment_hash, payment_secret)
1449 macro_rules! get_route {
1450 ($send_node: expr, $payment_params: expr, $recv_value: expr, $cltv: expr) => {{
1451 use $crate::chain::keysinterface::EntropySource;
1452 let scorer = $crate::util::test_utils::TestScorer::with_penalty(0);
1453 let keys_manager = $crate::util::test_utils::TestKeysInterface::new(&[0u8; 32], bitcoin::network::constants::Network::Testnet);
1454 let random_seed_bytes = keys_manager.get_secure_random_bytes();
1455 $crate::routing::router::get_route(
1456 &$send_node.node.get_our_node_id(), &$payment_params, &$send_node.network_graph.read_only(),
1457 Some(&$send_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
1458 $recv_value, $cltv, $send_node.logger, &scorer, &random_seed_bytes
1465 macro_rules! get_route_and_payment_hash {
1466 ($send_node: expr, $recv_node: expr, $recv_value: expr) => {{
1467 let payment_params = $crate::routing::router::PaymentParameters::from_node_id($recv_node.node.get_our_node_id())
1468 .with_features($crate::ln::channelmanager::provided_invoice_features());
1469 $crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value, TEST_FINAL_CLTV)
1471 ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr, $cltv: expr) => {{
1472 let (payment_preimage, payment_hash, payment_secret) = $crate::get_payment_preimage_hash!($recv_node, Some($recv_value));
1473 let route = $crate::get_route!($send_node, $payment_params, $recv_value, $cltv);
1474 (route.unwrap(), payment_hash, payment_preimage, payment_secret)
1479 macro_rules! expect_pending_htlcs_forwardable_conditions {
1480 ($node: expr, $expected_failures: expr) => {{
1481 let expected_failures = $expected_failures;
1482 let events = $node.node.get_and_clear_pending_events();
1484 $crate::util::events::Event::PendingHTLCsForwardable { .. } => { },
1485 _ => panic!("Unexpected event {:?}", events),
1488 let count = expected_failures.len() + 1;
1489 assert_eq!(events.len(), count);
1491 if expected_failures.len() > 0 {
1492 expect_htlc_handling_failed_destinations!(events, expected_failures)
1498 macro_rules! expect_htlc_handling_failed_destinations {
1499 ($events: expr, $expected_failures: expr) => {{
1500 for event in $events {
1502 $crate::util::events::Event::PendingHTLCsForwardable { .. } => { },
1503 $crate::util::events::Event::HTLCHandlingFailed { ref failed_next_destination, .. } => {
1504 assert!($expected_failures.contains(&failed_next_destination))
1506 _ => panic!("Unexpected destination"),
1513 /// Clears (and ignores) a PendingHTLCsForwardable event
1514 macro_rules! expect_pending_htlcs_forwardable_ignore {
1516 expect_pending_htlcs_forwardable_conditions!($node, vec![]);
1521 /// Clears (and ignores) PendingHTLCsForwardable and HTLCHandlingFailed events
1522 macro_rules! expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore {
1523 ($node: expr, $expected_failures: expr) => {{
1524 expect_pending_htlcs_forwardable_conditions!($node, $expected_failures);
1529 /// Handles a PendingHTLCsForwardable event
1530 macro_rules! expect_pending_htlcs_forwardable {
1532 expect_pending_htlcs_forwardable_ignore!($node);
1533 $node.node.process_pending_htlc_forwards();
1535 // Ensure process_pending_htlc_forwards is idempotent.
1536 $node.node.process_pending_htlc_forwards();
1541 /// Handles a PendingHTLCsForwardable and HTLCHandlingFailed event
1542 macro_rules! expect_pending_htlcs_forwardable_and_htlc_handling_failed {
1543 ($node: expr, $expected_failures: expr) => {{
1544 expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!($node, $expected_failures);
1545 $node.node.process_pending_htlc_forwards();
1547 // Ensure process_pending_htlc_forwards is idempotent.
1548 $node.node.process_pending_htlc_forwards();
1553 macro_rules! expect_pending_htlcs_forwardable_from_events {
1554 ($node: expr, $events: expr, $ignore: expr) => {{
1555 assert_eq!($events.len(), 1);
1557 Event::PendingHTLCsForwardable { .. } => { },
1558 _ => panic!("Unexpected event"),
1561 $node.node.process_pending_htlc_forwards();
1563 // Ensure process_pending_htlc_forwards is idempotent.
1564 $node.node.process_pending_htlc_forwards();
1569 #[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
1570 macro_rules! expect_payment_claimable {
1571 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr) => {
1572 expect_payment_claimable!($node, $expected_payment_hash, $expected_payment_secret, $expected_recv_value, None, $node.node.get_our_node_id())
1574 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr, $expected_payment_preimage: expr, $expected_receiver_node_id: expr) => {
1575 let events = $node.node.get_and_clear_pending_events();
1576 assert_eq!(events.len(), 1);
1578 $crate::util::events::Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, via_channel_id: _, via_user_channel_id: _ } => {
1579 assert_eq!($expected_payment_hash, *payment_hash);
1580 assert_eq!($expected_recv_value, amount_msat);
1581 assert_eq!($expected_receiver_node_id, receiver_node_id.unwrap());
1583 $crate::util::events::PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1584 assert_eq!(&$expected_payment_preimage, payment_preimage);
1585 assert_eq!($expected_payment_secret, *payment_secret);
1590 _ => panic!("Unexpected event"),
1596 #[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
1597 macro_rules! expect_payment_claimed {
1598 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
1599 let events = $node.node.get_and_clear_pending_events();
1600 assert_eq!(events.len(), 1);
1602 $crate::util::events::Event::PaymentClaimed { ref payment_hash, amount_msat, .. } => {
1603 assert_eq!($expected_payment_hash, *payment_hash);
1604 assert_eq!($expected_recv_value, amount_msat);
1606 _ => panic!("Unexpected event"),
1613 macro_rules! expect_payment_sent_without_paths {
1614 ($node: expr, $expected_payment_preimage: expr) => {
1615 expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, false);
1617 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1618 expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, false);
1623 macro_rules! expect_payment_sent {
1624 ($node: expr, $expected_payment_preimage: expr) => {
1625 $crate::expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, true);
1627 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1628 $crate::expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, true);
1630 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => { {
1631 use bitcoin::hashes::Hash as _;
1632 let events = $node.node.get_and_clear_pending_events();
1633 let expected_payment_hash = $crate::ln::PaymentHash(
1634 bitcoin::hashes::sha256::Hash::hash(&$expected_payment_preimage.0).into_inner());
1636 assert!(events.len() > 1);
1638 assert_eq!(events.len(), 1);
1640 let expected_payment_id = match events[0] {
1641 $crate::util::events::Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
1642 assert_eq!($expected_payment_preimage, *payment_preimage);
1643 assert_eq!(expected_payment_hash, *payment_hash);
1644 assert!(fee_paid_msat.is_some());
1645 if $expected_fee_msat_opt.is_some() {
1646 assert_eq!(*fee_paid_msat, $expected_fee_msat_opt);
1650 _ => panic!("Unexpected event"),
1653 for i in 1..events.len() {
1655 $crate::util::events::Event::PaymentPathSuccessful { payment_id, payment_hash, .. } => {
1656 assert_eq!(payment_id, expected_payment_id);
1657 assert_eq!(payment_hash, Some(expected_payment_hash));
1659 _ => panic!("Unexpected event"),
1668 macro_rules! expect_payment_path_successful {
1670 let events = $node.node.get_and_clear_pending_events();
1671 assert_eq!(events.len(), 1);
1673 $crate::util::events::Event::PaymentPathSuccessful { .. } => {},
1674 _ => panic!("Unexpected event"),
1679 macro_rules! expect_payment_forwarded {
1680 ($node: expr, $prev_node: expr, $next_node: expr, $expected_fee: expr, $upstream_force_closed: expr, $downstream_force_closed: expr) => {
1681 let events = $node.node.get_and_clear_pending_events();
1682 assert_eq!(events.len(), 1);
1684 Event::PaymentForwarded { fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id } => {
1685 assert_eq!(fee_earned_msat, $expected_fee);
1686 if fee_earned_msat.is_some() {
1687 // Is the event prev_channel_id in one of the channels between the two nodes?
1688 assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $prev_node.node.get_our_node_id() && x.channel_id == prev_channel_id.unwrap()));
1690 // We check for force closures since a force closed channel is removed from the
1691 // node's channel list
1692 if !$downstream_force_closed {
1693 assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $next_node.node.get_our_node_id() && x.channel_id == next_channel_id.unwrap()));
1695 assert_eq!(claim_from_onchain_tx, $downstream_force_closed);
1697 _ => panic!("Unexpected event"),
1702 #[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
1703 pub fn expect_channel_ready_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, expected_counterparty_node_id: &PublicKey) {
1704 let events = node.node.get_and_clear_pending_events();
1705 assert_eq!(events.len(), 1);
1707 crate::util::events::Event::ChannelReady{ ref counterparty_node_id, .. } => {
1708 assert_eq!(*expected_counterparty_node_id, *counterparty_node_id);
1710 _ => panic!("Unexpected event"),
1715 pub struct PaymentFailedConditions<'a> {
1716 pub(crate) expected_htlc_error_data: Option<(u16, &'a [u8])>,
1717 pub(crate) expected_blamed_scid: Option<u64>,
1718 pub(crate) expected_blamed_chan_closed: Option<bool>,
1719 pub(crate) expected_mpp_parts_remain: bool,
1722 impl<'a> PaymentFailedConditions<'a> {
1723 pub fn new() -> Self {
1725 expected_htlc_error_data: None,
1726 expected_blamed_scid: None,
1727 expected_blamed_chan_closed: None,
1728 expected_mpp_parts_remain: false,
1731 pub fn mpp_parts_remain(mut self) -> Self {
1732 self.expected_mpp_parts_remain = true;
1735 pub fn blamed_scid(mut self, scid: u64) -> Self {
1736 self.expected_blamed_scid = Some(scid);
1739 pub fn blamed_chan_closed(mut self, closed: bool) -> Self {
1740 self.expected_blamed_chan_closed = Some(closed);
1743 pub fn expected_htlc_error_data(mut self, code: u16, data: &'a [u8]) -> Self {
1744 self.expected_htlc_error_data = Some((code, data));
1750 macro_rules! expect_payment_failed_with_update {
1751 ($node: expr, $expected_payment_hash: expr, $payment_failed_permanently: expr, $scid: expr, $chan_closed: expr) => {
1752 $crate::ln::functional_test_utils::expect_payment_failed_conditions(
1753 &$node, $expected_payment_hash, $payment_failed_permanently,
1754 $crate::ln::functional_test_utils::PaymentFailedConditions::new()
1755 .blamed_scid($scid).blamed_chan_closed($chan_closed));
1760 macro_rules! expect_payment_failed {
1761 ($node: expr, $expected_payment_hash: expr, $payment_failed_permanently: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
1762 #[allow(unused_mut)]
1763 let mut conditions = $crate::ln::functional_test_utils::PaymentFailedConditions::new();
1765 conditions = conditions.expected_htlc_error_data($expected_error_code, &$expected_error_data);
1767 $crate::ln::functional_test_utils::expect_payment_failed_conditions(&$node, $expected_payment_hash, $payment_failed_permanently, conditions);
1771 pub fn expect_payment_failed_conditions_event<'a, 'b, 'c, 'd, 'e>(
1772 node: &'a Node<'b, 'c, 'd>, payment_failed_event: Event, expected_payment_hash: PaymentHash,
1773 expected_payment_failed_permanently: bool, conditions: PaymentFailedConditions<'e>
1775 let expected_payment_id = match payment_failed_event {
1776 Event::PaymentPathFailed { payment_hash, payment_failed_permanently, path, retry, payment_id, network_update, short_channel_id,
1780 error_data, .. } => {
1781 assert_eq!(payment_hash, expected_payment_hash, "unexpected payment_hash");
1782 assert_eq!(payment_failed_permanently, expected_payment_failed_permanently, "unexpected payment_failed_permanently value");
1783 assert!(retry.is_some(), "expected retry.is_some()");
1784 assert_eq!(retry.as_ref().unwrap().final_value_msat, path.last().unwrap().fee_msat, "Retry amount should match last hop in path");
1785 assert_eq!(retry.as_ref().unwrap().payment_params.payee_pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
1786 if let Some(scid) = short_channel_id {
1787 assert!(retry.as_ref().unwrap().payment_params.previously_failed_channels.contains(&scid));
1792 assert!(error_code.is_some(), "expected error_code.is_some() = true");
1793 assert!(error_data.is_some(), "expected error_data.is_some() = true");
1794 if let Some((code, data)) = conditions.expected_htlc_error_data {
1795 assert_eq!(error_code.unwrap(), code, "unexpected error code");
1796 assert_eq!(&error_data.as_ref().unwrap()[..], data, "unexpected error data");
1800 if let Some(chan_closed) = conditions.expected_blamed_chan_closed {
1801 match network_update {
1802 Some(NetworkUpdate::ChannelUpdateMessage { ref msg }) if !chan_closed => {
1803 if let Some(scid) = conditions.expected_blamed_scid {
1804 assert_eq!(msg.contents.short_channel_id, scid);
1806 const CHAN_DISABLED_FLAG: u8 = 2;
1807 assert_eq!(msg.contents.flags & CHAN_DISABLED_FLAG, 0);
1809 Some(NetworkUpdate::ChannelFailure { short_channel_id, is_permanent }) if chan_closed => {
1810 if let Some(scid) = conditions.expected_blamed_scid {
1811 assert_eq!(short_channel_id, scid);
1813 assert!(is_permanent);
1815 Some(_) => panic!("Unexpected update type"),
1816 None => panic!("Expected update"),
1822 _ => panic!("Unexpected event"),
1824 if !conditions.expected_mpp_parts_remain {
1825 node.node.abandon_payment(expected_payment_id);
1826 let events = node.node.get_and_clear_pending_events();
1827 assert_eq!(events.len(), 1);
1829 Event::PaymentFailed { ref payment_hash, ref payment_id } => {
1830 assert_eq!(*payment_hash, expected_payment_hash, "unexpected second payment_hash");
1831 assert_eq!(*payment_id, expected_payment_id);
1833 _ => panic!("Unexpected second event"),
1838 pub fn expect_payment_failed_conditions<'a, 'b, 'c, 'd, 'e>(
1839 node: &'a Node<'b, 'c, 'd>, expected_payment_hash: PaymentHash, expected_payment_failed_permanently: bool,
1840 conditions: PaymentFailedConditions<'e>
1842 let mut events = node.node.get_and_clear_pending_events();
1843 assert_eq!(events.len(), 1);
1844 expect_payment_failed_conditions_event(node, events.pop().unwrap(), expected_payment_hash, expected_payment_failed_permanently, conditions);
1847 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: PaymentSecret) -> PaymentId {
1848 let payment_id = PaymentId(origin_node.keys_manager.backing.get_secure_random_bytes());
1849 origin_node.node.send_payment(&route, our_payment_hash, &Some(our_payment_secret), payment_id).unwrap();
1850 check_added_monitors!(origin_node, expected_paths.len());
1851 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
1855 pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_claimable_expected: bool, clear_recipient_events: bool, expected_preimage: Option<PaymentPreimage>) {
1856 let mut payment_event = SendEvent::from_event(ev);
1857 let mut prev_node = origin_node;
1859 for (idx, &node) in expected_path.iter().enumerate() {
1860 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
1862 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
1863 check_added_monitors!(node, 0);
1864 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
1866 expect_pending_htlcs_forwardable!(node);
1868 if idx == expected_path.len() - 1 && clear_recipient_events {
1869 let events_2 = node.node.get_and_clear_pending_events();
1870 if payment_claimable_expected {
1871 assert_eq!(events_2.len(), 1);
1873 Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, ref via_channel_id, ref via_user_channel_id } => {
1874 assert_eq!(our_payment_hash, *payment_hash);
1875 assert_eq!(node.node.get_our_node_id(), receiver_node_id.unwrap());
1877 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1878 assert_eq!(expected_preimage, *payment_preimage);
1879 assert_eq!(our_payment_secret.unwrap(), *payment_secret);
1881 PaymentPurpose::SpontaneousPayment(payment_preimage) => {
1882 assert_eq!(expected_preimage.unwrap(), *payment_preimage);
1883 assert!(our_payment_secret.is_none());
1886 assert_eq!(amount_msat, recv_value);
1887 assert!(node.node.list_channels().iter().any(|details| details.channel_id == via_channel_id.unwrap()));
1888 assert!(node.node.list_channels().iter().any(|details| details.user_channel_id == via_user_channel_id.unwrap()));
1890 _ => panic!("Unexpected event"),
1893 assert!(events_2.is_empty());
1895 } else if idx != expected_path.len() - 1 {
1896 let mut events_2 = node.node.get_and_clear_pending_msg_events();
1897 assert_eq!(events_2.len(), 1);
1898 check_added_monitors!(node, 1);
1899 payment_event = SendEvent::from_event(events_2.remove(0));
1900 assert_eq!(payment_event.msgs.len(), 1);
1907 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_claimable_expected: bool, expected_preimage: Option<PaymentPreimage>) {
1908 do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_claimable_expected, true, expected_preimage);
1911 pub fn pass_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: PaymentSecret) {
1912 let mut events = origin_node.node.get_and_clear_pending_msg_events();
1913 assert_eq!(events.len(), expected_route.len());
1914 for (path_idx, expected_path) in expected_route.iter().enumerate() {
1915 let (ev, updated_events) = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &events);
1916 events = updated_events;
1917 // Once we've gotten through all the HTLCs, the last one should result in a
1918 // PaymentClaimable (but each previous one should not!), .
1919 let expect_payment = path_idx == expected_route.len() - 1;
1920 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), Some(our_payment_secret), ev, expect_payment, None);
1924 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, PaymentSecret, PaymentId) {
1925 let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(expected_route.last().unwrap());
1926 let payment_id = send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, our_payment_secret);
1927 (our_payment_preimage, our_payment_hash, our_payment_secret, payment_id)
1930 pub fn do_claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage) -> u64 {
1931 for path in expected_paths.iter() {
1932 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
1934 expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
1936 let claim_event = expected_paths[0].last().unwrap().node.get_and_clear_pending_events();
1937 assert_eq!(claim_event.len(), 1);
1938 match claim_event[0] {
1939 Event::PaymentClaimed { purpose: PaymentPurpose::SpontaneousPayment(preimage), .. }|
1940 Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { payment_preimage: Some(preimage), ..}, .. } =>
1941 assert_eq!(preimage, our_payment_preimage),
1942 Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { .. }, payment_hash, .. } =>
1943 assert_eq!(&payment_hash.0, &Sha256::hash(&our_payment_preimage.0)[..]),
1947 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
1949 let mut expected_total_fee_msat = 0;
1951 macro_rules! msgs_from_ev {
1954 &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 } } => {
1955 assert!(update_add_htlcs.is_empty());
1956 assert_eq!(update_fulfill_htlcs.len(), 1);
1957 assert!(update_fail_htlcs.is_empty());
1958 assert!(update_fail_malformed_htlcs.is_empty());
1959 assert!(update_fee.is_none());
1960 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
1962 _ => panic!("Unexpected event"),
1966 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
1967 let mut events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
1968 assert_eq!(events.len(), expected_paths.len());
1970 if events.len() == 1 {
1971 per_path_msgs.push(msgs_from_ev!(&events[0]));
1973 for expected_path in expected_paths.iter() {
1974 // For MPP payments, we always want the message to the first node in the path.
1975 let (ev, updated_events) = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &events);
1976 per_path_msgs.push(msgs_from_ev!(&ev));
1977 events = updated_events;
1981 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
1982 let mut next_msgs = Some(path_msgs);
1983 let mut expected_next_node = next_hop;
1985 macro_rules! last_update_fulfill_dance {
1986 ($node: expr, $prev_node: expr) => {
1988 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1989 check_added_monitors!($node, 0);
1990 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
1991 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
1995 macro_rules! mid_update_fulfill_dance {
1996 ($node: expr, $prev_node: expr, $next_node: expr, $new_msgs: expr) => {
1998 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2000 let per_peer_state = $node.node.per_peer_state.read().unwrap();
2001 let peer_state = per_peer_state.get(&$prev_node.node.get_our_node_id())
2002 .unwrap().lock().unwrap();
2003 let channel = peer_state.channel_by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap();
2004 if let Some(prev_config) = channel.prev_config() {
2005 prev_config.forwarding_fee_base_msat
2007 channel.config().forwarding_fee_base_msat
2010 expect_payment_forwarded!($node, $next_node, $prev_node, Some(fee as u64), false, false);
2011 expected_total_fee_msat += fee as u64;
2012 check_added_monitors!($node, 1);
2013 let new_next_msgs = if $new_msgs {
2014 let events = $node.node.get_and_clear_pending_msg_events();
2015 assert_eq!(events.len(), 1);
2016 let (res, nexthop) = msgs_from_ev!(&events[0]);
2017 expected_next_node = nexthop;
2020 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
2023 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
2024 next_msgs = new_next_msgs;
2029 let mut prev_node = expected_route.last().unwrap();
2030 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
2031 assert_eq!(expected_next_node, node.node.get_our_node_id());
2032 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
2033 if next_msgs.is_some() {
2034 // Since we are traversing in reverse, next_node is actually the previous node
2035 let next_node: &Node;
2036 if idx == expected_route.len() - 1 {
2037 next_node = origin_node;
2039 next_node = expected_route[expected_route.len() - 1 - idx - 1];
2041 mid_update_fulfill_dance!(node, prev_node, next_node, update_next_msgs);
2043 assert!(!update_next_msgs);
2044 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
2046 if !skip_last && idx == expected_route.len() - 1 {
2047 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
2054 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
2058 // Ensure that claim_funds is idempotent.
2059 expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
2060 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
2061 check_added_monitors!(expected_paths[0].last().unwrap(), 0);
2063 expected_total_fee_msat
2065 pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage) {
2066 let expected_total_fee_msat = do_claim_payment_along_route(origin_node, expected_paths, skip_last, our_payment_preimage);
2068 expect_payment_sent!(origin_node, our_payment_preimage, Some(expected_total_fee_msat));
2072 pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage) {
2073 claim_payment_along_route(origin_node, &[expected_route], false, our_payment_preimage);
2076 pub const TEST_FINAL_CLTV: u32 = 70;
2078 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
2079 let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
2080 .with_features(channelmanager::provided_invoice_features());
2081 let route = get_route!(origin_node, payment_params, recv_value, TEST_FINAL_CLTV).unwrap();
2082 assert_eq!(route.paths.len(), 1);
2083 assert_eq!(route.paths[0].len(), expected_route.len());
2084 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
2085 assert_eq!(hop.pubkey, node.node.get_our_node_id());
2088 let res = send_along_route(origin_node, route, expected_route, recv_value);
2089 (res.0, res.1, res.2)
2092 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
2093 let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
2094 .with_features(channelmanager::provided_invoice_features());
2095 let network_graph = origin_node.network_graph.read_only();
2096 let scorer = test_utils::TestScorer::with_penalty(0);
2097 let seed = [0u8; 32];
2098 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
2099 let random_seed_bytes = keys_manager.get_secure_random_bytes();
2100 let route = get_route(
2101 &origin_node.node.get_our_node_id(), &payment_params, &network_graph,
2102 None, recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer, &random_seed_bytes).unwrap();
2103 assert_eq!(route.paths.len(), 1);
2104 assert_eq!(route.paths[0].len(), expected_route.len());
2105 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
2106 assert_eq!(hop.pubkey, node.node.get_our_node_id());
2109 let (_, our_payment_hash, our_payment_preimage) = get_payment_preimage_hash!(expected_route.last().unwrap());
2110 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &Some(our_payment_preimage), PaymentId(our_payment_hash.0)), true, APIError::ChannelUnavailable { ref err },
2111 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
2114 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
2115 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
2116 claim_payment(&origin, expected_route, our_payment_preimage);
2119 pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
2120 for path in expected_paths.iter() {
2121 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
2123 expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
2124 let expected_destinations: Vec<HTLCDestination> = repeat(HTLCDestination::FailedPayment { payment_hash: our_payment_hash }).take(expected_paths.len()).collect();
2125 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(expected_paths[0].last().unwrap(), expected_destinations);
2127 pass_failed_payment_back(origin_node, expected_paths, skip_last, our_payment_hash);
2130 pub fn pass_failed_payment_back<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths_slice: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
2131 let expected_payment_id = pass_failed_payment_back_no_abandon(origin_node, expected_paths_slice, skip_last, our_payment_hash);
2133 origin_node.node.abandon_payment(expected_payment_id.unwrap());
2134 let events = origin_node.node.get_and_clear_pending_events();
2135 assert_eq!(events.len(), 1);
2137 Event::PaymentFailed { ref payment_hash, ref payment_id } => {
2138 assert_eq!(*payment_hash, our_payment_hash, "unexpected second payment_hash");
2139 assert_eq!(*payment_id, expected_payment_id.unwrap());
2141 _ => panic!("Unexpected second event"),
2146 pub fn pass_failed_payment_back_no_abandon<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths_slice: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) -> Option<PaymentId> {
2147 let mut expected_paths: Vec<_> = expected_paths_slice.iter().collect();
2148 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
2150 let mut per_path_msgs: Vec<((msgs::UpdateFailHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
2151 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
2152 assert_eq!(events.len(), expected_paths.len());
2153 for ev in events.iter() {
2154 let (update_fail, commitment_signed, node_id) = match ev {
2155 &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 } } => {
2156 assert!(update_add_htlcs.is_empty());
2157 assert!(update_fulfill_htlcs.is_empty());
2158 assert_eq!(update_fail_htlcs.len(), 1);
2159 assert!(update_fail_malformed_htlcs.is_empty());
2160 assert!(update_fee.is_none());
2161 (update_fail_htlcs[0].clone(), commitment_signed.clone(), node_id.clone())
2163 _ => panic!("Unexpected event"),
2165 per_path_msgs.push(((update_fail, commitment_signed), node_id));
2167 per_path_msgs.sort_unstable_by(|(_, node_id_a), (_, node_id_b)| node_id_a.cmp(node_id_b));
2168 expected_paths.sort_unstable_by(|path_a, path_b| path_a[path_a.len() - 2].node.get_our_node_id().cmp(&path_b[path_b.len() - 2].node.get_our_node_id()));
2170 let mut expected_payment_id = None;
2172 for (i, (expected_route, (path_msgs, next_hop))) in expected_paths.iter().zip(per_path_msgs.drain(..)).enumerate() {
2173 let mut next_msgs = Some(path_msgs);
2174 let mut expected_next_node = next_hop;
2175 let mut prev_node = expected_route.last().unwrap();
2177 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
2178 assert_eq!(expected_next_node, node.node.get_our_node_id());
2179 let update_next_node = !skip_last || idx != expected_route.len() - 1;
2180 if next_msgs.is_some() {
2181 node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2182 commitment_signed_dance!(node, prev_node, next_msgs.as_ref().unwrap().1, update_next_node);
2183 if !update_next_node {
2184 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(node, vec![HTLCDestination::NextHopChannel { node_id: Some(prev_node.node.get_our_node_id()), channel_id: next_msgs.as_ref().unwrap().0.channel_id }]);
2187 let events = node.node.get_and_clear_pending_msg_events();
2188 if update_next_node {
2189 assert_eq!(events.len(), 1);
2191 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 } } => {
2192 assert!(update_add_htlcs.is_empty());
2193 assert!(update_fulfill_htlcs.is_empty());
2194 assert_eq!(update_fail_htlcs.len(), 1);
2195 assert!(update_fail_malformed_htlcs.is_empty());
2196 assert!(update_fee.is_none());
2197 expected_next_node = node_id.clone();
2198 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
2200 _ => panic!("Unexpected event"),
2203 assert!(events.is_empty());
2205 if !skip_last && idx == expected_route.len() - 1 {
2206 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
2213 let prev_node = expected_route.first().unwrap();
2214 origin_node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2215 check_added_monitors!(origin_node, 0);
2216 assert!(origin_node.node.get_and_clear_pending_msg_events().is_empty());
2217 commitment_signed_dance!(origin_node, prev_node, next_msgs.as_ref().unwrap().1, false);
2218 let events = origin_node.node.get_and_clear_pending_events();
2219 assert_eq!(events.len(), 1);
2220 expected_payment_id = Some(match events[0] {
2221 Event::PaymentPathFailed { payment_hash, payment_failed_permanently, all_paths_failed, ref path, ref payment_id, .. } => {
2222 assert_eq!(payment_hash, our_payment_hash);
2223 assert!(payment_failed_permanently);
2224 assert_eq!(all_paths_failed, i == expected_paths.len() - 1);
2225 for (idx, hop) in expected_route.iter().enumerate() {
2226 assert_eq!(hop.node.get_our_node_id(), path[idx].pubkey);
2230 _ => panic!("Unexpected event"),
2235 // Ensure that fail_htlc_backwards is idempotent.
2236 expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
2237 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_events().is_empty());
2238 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
2239 check_added_monitors!(expected_paths[0].last().unwrap(), 0);
2244 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
2245 fail_payment_along_route(origin_node, &[&expected_path[..]], false, our_payment_hash);
2248 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
2249 let mut chan_mon_cfgs = Vec::new();
2250 for i in 0..node_count {
2251 let tx_broadcaster = test_utils::TestBroadcaster {
2252 txn_broadcasted: Mutex::new(Vec::new()),
2253 blocks: Arc::new(Mutex::new(vec![(genesis_block(Network::Testnet), 0)])),
2255 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
2256 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
2257 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
2258 let persister = test_utils::TestPersister::new();
2259 let seed = [i as u8; 32];
2260 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
2262 chan_mon_cfgs.push(TestChanMonCfg { tx_broadcaster, fee_estimator, chain_source, logger, persister, keys_manager });
2268 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
2269 let mut nodes = Vec::new();
2271 for i in 0..node_count {
2272 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, &chanmon_cfgs[i].keys_manager);
2273 let network_graph = Arc::new(NetworkGraph::new(chanmon_cfgs[i].chain_source.genesis_hash, &chanmon_cfgs[i].logger));
2274 let seed = [i as u8; 32];
2275 nodes.push(NodeCfg {
2276 chain_source: &chanmon_cfgs[i].chain_source,
2277 logger: &chanmon_cfgs[i].logger,
2278 tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster,
2279 fee_estimator: &chanmon_cfgs[i].fee_estimator,
2280 router: test_utils::TestRouter::new(network_graph.clone()),
2282 keys_manager: &chanmon_cfgs[i].keys_manager,
2284 features: channelmanager::provided_init_features(),
2292 pub fn test_default_channel_config() -> UserConfig {
2293 let mut default_config = UserConfig::default();
2294 // Set cltv_expiry_delta slightly lower to keep the final CLTV values inside one byte in our
2295 // tests so that our script-length checks don't fail (see ACCEPTED_HTLC_SCRIPT_WEIGHT).
2296 default_config.channel_config.cltv_expiry_delta = MIN_CLTV_EXPIRY_DELTA;
2297 default_config.channel_handshake_config.announced_channel = true;
2298 default_config.channel_handshake_limits.force_announced_channel_preference = false;
2299 // When most of our tests were written, the default HTLC minimum was fixed at 1000.
2300 // It now defaults to 1, so we simply set it to the expected value here.
2301 default_config.channel_handshake_config.our_htlc_minimum_msat = 1000;
2302 // When most of our tests were written, we didn't have the notion of a `max_dust_htlc_exposure_msat`,
2303 // It now defaults to 5_000_000 msat; to avoid interfering with tests we bump it to 50_000_000 msat.
2304 default_config.channel_config.max_dust_htlc_exposure_msat = 50_000_000;
2308 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<&'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'a test_utils::TestRouter<'b>, &'b test_utils::TestLogger>> {
2309 let mut chanmgrs = Vec::new();
2310 for i in 0..node_count {
2311 let network = Network::Testnet;
2312 let params = ChainParameters {
2314 best_block: BestBlock::from_genesis(network),
2316 let node = ChannelManager::new(cfgs[i].fee_estimator, &cfgs[i].chain_monitor, cfgs[i].tx_broadcaster, &cfgs[i].router, cfgs[i].logger, cfgs[i].keys_manager,
2317 if node_config[i].is_some() { node_config[i].clone().unwrap() } else { test_default_channel_config() }, params);
2318 chanmgrs.push(node);
2324 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestRouter, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
2325 let mut nodes = Vec::new();
2326 let chan_count = Rc::new(RefCell::new(0));
2327 let payment_count = Rc::new(RefCell::new(0));
2328 let connect_style = Rc::new(RefCell::new(ConnectStyle::random_style()));
2330 for i in 0..node_count {
2331 let gossip_sync = P2PGossipSync::new(cfgs[i].network_graph.as_ref(), None, cfgs[i].logger);
2333 chain_source: cfgs[i].chain_source, tx_broadcaster: cfgs[i].tx_broadcaster,
2334 fee_estimator: cfgs[i].fee_estimator, router: &cfgs[i].router,
2335 chain_monitor: &cfgs[i].chain_monitor, keys_manager: &cfgs[i].keys_manager,
2336 node: &chan_mgrs[i], network_graph: cfgs[i].network_graph.as_ref(), gossip_sync,
2337 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
2338 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
2339 blocks: Arc::clone(&cfgs[i].tx_broadcaster.blocks),
2340 connect_style: Rc::clone(&connect_style),
2344 for i in 0..node_count {
2345 for j in (i+1)..node_count {
2346 nodes[i].node.peer_connected(&nodes[j].node.get_our_node_id(), &msgs::Init { features: cfgs[j].features.clone(), remote_network_address: None }).unwrap();
2347 nodes[j].node.peer_connected(&nodes[i].node.get_our_node_id(), &msgs::Init { features: cfgs[i].features.clone(), remote_network_address: None }).unwrap();
2354 // Note that the following only works for CLTV values up to 128
2355 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 137; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
2357 #[derive(PartialEq)]
2358 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
2359 /// Tests that the given node has broadcast transactions for the given Channel
2361 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
2362 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
2363 /// broadcast and the revoked outputs were claimed.
2365 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
2366 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
2368 /// All broadcast transactions must be accounted for in one of the above three types of we'll
2370 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> {
2371 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2372 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
2374 let mut res = Vec::with_capacity(2);
2375 node_txn.retain(|tx| {
2376 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
2377 check_spends!(tx, chan.3);
2378 if commitment_tx.is_none() {
2379 res.push(tx.clone());
2384 if let Some(explicit_tx) = commitment_tx {
2385 res.push(explicit_tx.clone());
2388 assert_eq!(res.len(), 1);
2390 if has_htlc_tx != HTLCType::NONE {
2391 node_txn.retain(|tx| {
2392 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
2393 check_spends!(tx, res[0]);
2394 if has_htlc_tx == HTLCType::TIMEOUT {
2395 assert!(tx.lock_time.0 != 0);
2397 assert!(tx.lock_time.0 == 0);
2399 res.push(tx.clone());
2403 assert!(res.len() == 2 || res.len() == 3);
2405 assert_eq!(res[1], res[2]);
2409 assert!(node_txn.is_empty());
2413 /// Tests that the given node has broadcast a claim transaction against the provided revoked
2414 /// HTLC transaction.
2415 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
2416 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2417 // We may issue multiple claiming transaction on revoked outputs due to block rescan
2418 // for revoked htlc outputs
2419 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
2420 node_txn.retain(|tx| {
2421 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
2422 check_spends!(tx, revoked_tx);
2426 node_txn.retain(|tx| {
2427 check_spends!(tx, commitment_revoked_tx);
2430 assert!(node_txn.is_empty());
2433 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
2434 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2436 assert!(node_txn.len() >= 1);
2437 assert_eq!(node_txn[0].input.len(), 1);
2438 let mut found_prev = false;
2440 for tx in prev_txn {
2441 if node_txn[0].input[0].previous_output.txid == tx.txid() {
2442 check_spends!(node_txn[0], tx);
2443 let mut iter = node_txn[0].input[0].witness.iter();
2444 iter.next().expect("expected 3 witness items");
2445 iter.next().expect("expected 3 witness items");
2446 assert!(iter.next().expect("expected 3 witness items").len() > 106); // must spend an htlc output
2447 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
2453 assert!(found_prev);
2455 let mut res = Vec::new();
2456 mem::swap(&mut *node_txn, &mut res);
2460 pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize, needs_err_handle: bool, expected_error: &str) {
2461 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
2462 assert_eq!(events_1.len(), 2);
2463 let as_update = match events_1[0] {
2464 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
2467 _ => panic!("Unexpected event"),
2470 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
2471 assert_eq!(node_id, nodes[b].node.get_our_node_id());
2472 assert_eq!(msg.data, expected_error);
2473 if needs_err_handle {
2474 nodes[b].node.handle_error(&nodes[a].node.get_our_node_id(), msg);
2477 _ => panic!("Unexpected event"),
2480 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
2481 assert_eq!(events_2.len(), if needs_err_handle { 1 } else { 2 });
2482 let bs_update = match events_2[0] {
2483 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
2486 _ => panic!("Unexpected event"),
2488 if !needs_err_handle {
2490 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
2491 assert_eq!(node_id, nodes[a].node.get_our_node_id());
2492 assert_eq!(msg.data, expected_error);
2494 _ => panic!("Unexpected event"),
2499 node.gossip_sync.handle_channel_update(&as_update).unwrap();
2500 node.gossip_sync.handle_channel_update(&bs_update).unwrap();
2504 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
2505 handle_announce_close_broadcast_events(nodes, a, b, false, "Channel closed because commitment or closing transaction was confirmed on chain.");
2509 macro_rules! get_channel_value_stat {
2510 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {{
2511 let peer_state_lock = $node.node.per_peer_state.read().unwrap();
2512 let chan_lock = peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
2513 let chan = chan_lock.channel_by_id.get(&$channel_id).unwrap();
2514 chan.get_value_stat()
2518 macro_rules! get_chan_reestablish_msgs {
2519 ($src_node: expr, $dst_node: expr) => {
2521 let mut announcements = $crate::prelude::HashSet::new();
2522 let mut res = Vec::with_capacity(1);
2523 for msg in $src_node.node.get_and_clear_pending_msg_events() {
2524 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
2525 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2526 res.push(msg.clone());
2527 } else if let MessageSendEvent::SendChannelAnnouncement { ref node_id, ref msg, .. } = msg {
2528 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2529 announcements.insert(msg.contents.short_channel_id);
2531 panic!("Unexpected event")
2534 for chan in $src_node.node.list_channels() {
2535 if chan.is_public && chan.counterparty.node_id != $dst_node.node.get_our_node_id() {
2536 if let Some(scid) = chan.short_channel_id {
2537 assert!(announcements.remove(&scid));
2541 assert!(announcements.is_empty());
2547 macro_rules! handle_chan_reestablish_msgs {
2548 ($src_node: expr, $dst_node: expr) => {
2550 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
2552 let channel_ready = if let Some(&MessageSendEvent::SendChannelReady { ref node_id, ref msg }) = msg_events.get(0) {
2554 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2560 if let Some(&MessageSendEvent::SendAnnouncementSignatures { ref node_id, msg: _ }) = msg_events.get(idx) {
2562 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2565 let mut had_channel_update = false; // ChannelUpdate may be now or later, but not both
2566 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, ref msg }) = msg_events.get(idx) {
2567 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2569 assert_eq!(msg.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
2570 had_channel_update = true;
2573 let mut revoke_and_ack = None;
2574 let mut commitment_update = None;
2575 let order = if let Some(ev) = msg_events.get(idx) {
2577 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
2578 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2579 revoke_and_ack = Some(msg.clone());
2581 RAACommitmentOrder::RevokeAndACKFirst
2583 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
2584 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2585 commitment_update = Some(updates.clone());
2587 RAACommitmentOrder::CommitmentFirst
2589 _ => RAACommitmentOrder::CommitmentFirst,
2592 RAACommitmentOrder::CommitmentFirst
2595 if let Some(ev) = msg_events.get(idx) {
2597 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
2598 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2599 assert!(revoke_and_ack.is_none());
2600 revoke_and_ack = Some(msg.clone());
2603 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
2604 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2605 assert!(commitment_update.is_none());
2606 commitment_update = Some(updates.clone());
2613 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, ref msg }) = msg_events.get(idx) {
2614 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2616 assert_eq!(msg.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
2617 assert!(!had_channel_update);
2620 assert_eq!(msg_events.len(), idx);
2622 (channel_ready, revoke_and_ack, commitment_update, order)
2627 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
2628 /// for claims/fails they are separated out.
2629 pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_channel_ready: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_htlc_fails: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
2630 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
2631 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
2632 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
2633 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
2635 if send_channel_ready.0 {
2636 // If a expects a channel_ready, it better not think it has received a revoke_and_ack
2638 for reestablish in reestablish_1.iter() {
2639 assert_eq!(reestablish.next_remote_commitment_number, 0);
2642 if send_channel_ready.1 {
2643 // If b expects a channel_ready, it better not think it has received a revoke_and_ack
2645 for reestablish in reestablish_2.iter() {
2646 assert_eq!(reestablish.next_remote_commitment_number, 0);
2649 if send_channel_ready.0 || send_channel_ready.1 {
2650 // If we expect any channel_ready's, both sides better have set
2651 // next_holder_commitment_number to 1
2652 for reestablish in reestablish_1.iter() {
2653 assert_eq!(reestablish.next_local_commitment_number, 1);
2655 for reestablish in reestablish_2.iter() {
2656 assert_eq!(reestablish.next_local_commitment_number, 1);
2660 let mut resp_1 = Vec::new();
2661 for msg in reestablish_1 {
2662 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
2663 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
2665 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
2666 check_added_monitors!(node_b, 1);
2668 check_added_monitors!(node_b, 0);
2671 let mut resp_2 = Vec::new();
2672 for msg in reestablish_2 {
2673 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
2674 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
2676 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
2677 check_added_monitors!(node_a, 1);
2679 check_added_monitors!(node_a, 0);
2682 // We don't yet support both needing updates, as that would require a different commitment dance:
2683 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_htlc_fails.0 == 0 &&
2684 pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
2685 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_htlc_fails.1 == 0 &&
2686 pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
2688 for chan_msgs in resp_1.drain(..) {
2689 if send_channel_ready.0 {
2690 node_a.node.handle_channel_ready(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
2691 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
2692 if !announcement_event.is_empty() {
2693 assert_eq!(announcement_event.len(), 1);
2694 if let MessageSendEvent::SendChannelUpdate { .. } = announcement_event[0] {
2695 //TODO: Test announcement_sigs re-sending
2696 } else { panic!("Unexpected event! {:?}", announcement_event[0]); }
2699 assert!(chan_msgs.0.is_none());
2702 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
2703 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
2704 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
2705 check_added_monitors!(node_a, 1);
2707 assert!(chan_msgs.1.is_none());
2709 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_htlc_fails.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
2710 let commitment_update = chan_msgs.2.unwrap();
2711 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
2712 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
2714 assert!(commitment_update.update_add_htlcs.is_empty());
2716 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
2717 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.0 + pending_cell_htlc_fails.0);
2718 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
2719 for update_add in commitment_update.update_add_htlcs {
2720 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
2722 for update_fulfill in commitment_update.update_fulfill_htlcs {
2723 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
2725 for update_fail in commitment_update.update_fail_htlcs {
2726 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
2729 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
2730 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
2732 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
2733 check_added_monitors!(node_a, 1);
2734 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
2735 // No commitment_signed so get_event_msg's assert(len == 1) passes
2736 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
2737 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
2738 check_added_monitors!(node_b, 1);
2741 assert!(chan_msgs.2.is_none());
2745 for chan_msgs in resp_2.drain(..) {
2746 if send_channel_ready.1 {
2747 node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
2748 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
2749 if !announcement_event.is_empty() {
2750 assert_eq!(announcement_event.len(), 1);
2751 match announcement_event[0] {
2752 MessageSendEvent::SendChannelUpdate { .. } => {},
2753 MessageSendEvent::SendAnnouncementSignatures { .. } => {},
2754 _ => panic!("Unexpected event {:?}!", announcement_event[0]),
2758 assert!(chan_msgs.0.is_none());
2761 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
2762 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
2763 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
2764 check_added_monitors!(node_b, 1);
2766 assert!(chan_msgs.1.is_none());
2768 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_htlc_fails.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
2769 let commitment_update = chan_msgs.2.unwrap();
2770 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
2771 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
2773 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.1 + pending_cell_htlc_claims.1);
2774 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.1 + pending_cell_htlc_fails.1);
2775 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
2776 for update_add in commitment_update.update_add_htlcs {
2777 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
2779 for update_fulfill in commitment_update.update_fulfill_htlcs {
2780 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
2782 for update_fail in commitment_update.update_fail_htlcs {
2783 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
2786 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
2787 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
2789 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
2790 check_added_monitors!(node_b, 1);
2791 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
2792 // No commitment_signed so get_event_msg's assert(len == 1) passes
2793 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
2794 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
2795 check_added_monitors!(node_a, 1);
2798 assert!(chan_msgs.2.is_none());