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::{ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentId, MIN_CLTV_EXPIRY_DELTA};
18 use crate::ln::outbound_payment::PaymentSendFailure;
19 use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate};
20 use crate::routing::router::{PaymentParameters, Route, get_route};
21 use crate::ln::features::InitFeatures;
23 use crate::ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
24 use crate::util::enforcing_trait_impls::EnforcingSigner;
25 use crate::util::scid_utils;
26 use crate::util::test_utils;
27 use crate::util::test_utils::{panicking, TestChainMonitor};
28 use crate::util::events::{Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose};
29 use crate::util::errors::APIError;
30 use crate::util::config::UserConfig;
31 use crate::util::ser::{ReadableArgs, Writeable};
33 use bitcoin::blockdata::block::{Block, BlockHeader};
34 use bitcoin::blockdata::constants::genesis_block;
35 use bitcoin::blockdata::transaction::{Transaction, TxOut};
36 use bitcoin::network::constants::Network;
38 use bitcoin::hash_types::BlockHash;
39 use bitcoin::hashes::sha256::Hash as Sha256;
40 use bitcoin::hashes::Hash as _;
42 use bitcoin::secp256k1::PublicKey;
45 use crate::prelude::*;
46 use core::cell::RefCell;
48 use crate::sync::{Arc, Mutex, LockTestExt};
50 use core::iter::repeat;
51 use bitcoin::{PackedLockTime, TxMerkleNode};
53 pub const CHAN_CONFIRM_DEPTH: u32 = 10;
55 /// Mine the given transaction in the next block and then mine CHAN_CONFIRM_DEPTH - 1 blocks on
56 /// top, giving the given transaction CHAN_CONFIRM_DEPTH confirmations.
58 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
59 /// output is the 1st output in the transaction.
60 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> u64 {
61 let scid = confirm_transaction_at(node, tx, node.best_block_info().1 + 1);
62 connect_blocks(node, CHAN_CONFIRM_DEPTH - 1);
65 /// Mine a single block containing the given transaction
66 pub fn mine_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
67 let height = node.best_block_info().1 + 1;
68 confirm_transaction_at(node, tx, height);
70 /// Mine a single block containing the given transactions
71 pub fn mine_transactions<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn: &[&Transaction]) {
72 let height = node.best_block_info().1 + 1;
73 confirm_transactions_at(node, txn, height);
75 /// Mine the given transaction at the given height, mining blocks as required to build to that
78 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
79 /// output is the 1st output in the transaction.
80 pub fn confirm_transactions_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn: &[&Transaction], conf_height: u32) -> u64 {
81 let first_connect_height = node.best_block_info().1 + 1;
82 assert!(first_connect_height <= conf_height);
83 if conf_height > first_connect_height {
84 connect_blocks(node, conf_height - first_connect_height);
86 let mut block = Block {
87 header: BlockHeader { version: 0x20000000, prev_blockhash: node.best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: conf_height, bits: 42, nonce: 42 },
90 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
91 block.txdata.push(Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() });
94 block.txdata.push((*tx).clone());
96 connect_block(node, &block);
97 scid_utils::scid_from_parts(conf_height as u64, block.txdata.len() as u64 - 1, 0).unwrap()
99 pub fn confirm_transaction_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) -> u64 {
100 confirm_transactions_at(node, &[tx], conf_height)
103 /// The possible ways we may notify a ChannelManager of a new block
104 #[derive(Clone, Copy, Debug, PartialEq)]
105 pub enum ConnectStyle {
106 /// Calls `best_block_updated` first, detecting transactions in the block only after receiving
107 /// the header and height information.
109 /// The same as `BestBlockFirst`, however when we have multiple blocks to connect, we only
110 /// make a single `best_block_updated` call.
111 BestBlockFirstSkippingBlocks,
112 /// The same as `BestBlockFirst` when connecting blocks. During disconnection only
113 /// `transaction_unconfirmed` is called.
114 BestBlockFirstReorgsOnlyTip,
115 /// Calls `transactions_confirmed` first, detecting transactions in the block before updating
116 /// the header and height information.
118 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
119 /// make a single `best_block_updated` call.
120 TransactionsFirstSkippingBlocks,
121 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
122 /// make a single `best_block_updated` call. Further, we call `transactions_confirmed` multiple
123 /// times to ensure it's idempotent.
124 TransactionsDuplicativelyFirstSkippingBlocks,
125 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
126 /// make a single `best_block_updated` call. Further, we call `transactions_confirmed` multiple
127 /// times to ensure it's idempotent.
128 HighlyRedundantTransactionsFirstSkippingBlocks,
129 /// The same as `TransactionsFirst` when connecting blocks. During disconnection only
130 /// `transaction_unconfirmed` is called.
131 TransactionsFirstReorgsOnlyTip,
132 /// Provides the full block via the `chain::Listen` interface. In the current code this is
133 /// equivalent to `TransactionsFirst` with some additional assertions.
138 fn random_style() -> ConnectStyle {
139 #[cfg(feature = "std")] {
140 use core::hash::{BuildHasher, Hasher};
141 // Get a random value using the only std API to do so - the DefaultHasher
142 let rand_val = std::collections::hash_map::RandomState::new().build_hasher().finish();
143 let res = match rand_val % 9 {
144 0 => ConnectStyle::BestBlockFirst,
145 1 => ConnectStyle::BestBlockFirstSkippingBlocks,
146 2 => ConnectStyle::BestBlockFirstReorgsOnlyTip,
147 3 => ConnectStyle::TransactionsFirst,
148 4 => ConnectStyle::TransactionsFirstSkippingBlocks,
149 5 => ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks,
150 6 => ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks,
151 7 => ConnectStyle::TransactionsFirstReorgsOnlyTip,
152 8 => ConnectStyle::FullBlockViaListen,
155 eprintln!("Using Block Connection Style: {:?}", res);
158 #[cfg(not(feature = "std"))] {
159 ConnectStyle::FullBlockViaListen
164 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32) -> BlockHash {
165 let skip_intermediaries = match *node.connect_style.borrow() {
166 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks|
167 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks|ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|
168 ConnectStyle::BestBlockFirstReorgsOnlyTip|ConnectStyle::TransactionsFirstReorgsOnlyTip => true,
172 let height = node.best_block_info().1 + 1;
173 let mut block = Block {
174 header: BlockHeader { version: 0x2000000, prev_blockhash: node.best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: height, bits: 42, nonce: 42 },
179 let prev_blockhash = block.header.block_hash();
180 do_connect_block(node, block, skip_intermediaries);
182 header: BlockHeader { version: 0x20000000, prev_blockhash, merkle_root: TxMerkleNode::all_zeros(), time: height + i, bits: 42, nonce: 42 },
186 let hash = block.header.block_hash();
187 do_connect_block(node, block, false);
191 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block) {
192 do_connect_block(node, block.clone(), false);
195 fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
196 // Ensure `get_claimable_balances`' self-tests never panic
197 for funding_outpoint in node.chain_monitor.chain_monitor.list_monitors() {
198 node.chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances();
202 fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) {
203 call_claimable_balances(node);
204 let height = node.best_block_info().1 + 1;
205 #[cfg(feature = "std")] {
206 eprintln!("Connecting block using Block Connection Style: {:?}", *node.connect_style.borrow());
208 if !skip_intermediaries {
209 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
210 match *node.connect_style.borrow() {
211 ConnectStyle::BestBlockFirst|ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::BestBlockFirstReorgsOnlyTip => {
212 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
213 call_claimable_balances(node);
214 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
215 node.node.best_block_updated(&block.header, height);
216 node.node.transactions_confirmed(&block.header, &txdata, height);
218 ConnectStyle::TransactionsFirst|ConnectStyle::TransactionsFirstSkippingBlocks|
219 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks|ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|
220 ConnectStyle::TransactionsFirstReorgsOnlyTip => {
221 if *node.connect_style.borrow() == ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks {
222 let mut connections = Vec::new();
223 for (block, height) in node.blocks.lock().unwrap().iter() {
224 if !block.txdata.is_empty() {
225 // Reconnect all transactions we've ever seen to ensure transaction connection
226 // is *really* idempotent. This is a somewhat likely deployment for some
227 // esplora implementations of chain sync which try to reduce state and
228 // complexity as much as possible.
230 // Sadly we have to clone the block here to maintain lockorder. In the
231 // future we should consider Arc'ing the blocks to avoid this.
232 connections.push((block.clone(), *height));
235 for (old_block, height) in connections {
236 node.chain_monitor.chain_monitor.transactions_confirmed(&old_block.header,
237 &old_block.txdata.iter().enumerate().collect::<Vec<_>>(), height);
240 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
241 if *node.connect_style.borrow() == ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks {
242 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
244 call_claimable_balances(node);
245 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
246 node.node.transactions_confirmed(&block.header, &txdata, height);
247 node.node.best_block_updated(&block.header, height);
249 ConnectStyle::FullBlockViaListen => {
250 node.chain_monitor.chain_monitor.block_connected(&block, height);
251 node.node.block_connected(&block, height);
255 call_claimable_balances(node);
256 node.node.test_process_background_events();
257 node.blocks.lock().unwrap().push((block, height));
260 pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
261 call_claimable_balances(node);
262 #[cfg(feature = "std")] {
263 eprintln!("Disconnecting {} blocks using Block Connection Style: {:?}", count, *node.connect_style.borrow());
266 let orig = node.blocks.lock().unwrap().pop().unwrap();
267 assert!(orig.1 > 0); // Cannot disconnect genesis
268 let prev = node.blocks.lock().unwrap().last().unwrap().clone();
270 match *node.connect_style.borrow() {
271 ConnectStyle::FullBlockViaListen => {
272 node.chain_monitor.chain_monitor.block_disconnected(&orig.0.header, orig.1);
273 Listen::block_disconnected(node.node, &orig.0.header, orig.1);
275 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks|
276 ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks => {
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 ConnectStyle::BestBlockFirstReorgsOnlyTip|ConnectStyle::TransactionsFirstReorgsOnlyTip => {
283 for tx in orig.0.txdata {
284 node.chain_monitor.chain_monitor.transaction_unconfirmed(&tx.txid());
285 node.node.transaction_unconfirmed(&tx.txid());
289 node.chain_monitor.chain_monitor.best_block_updated(&prev.0.header, prev.1);
290 node.node.best_block_updated(&prev.0.header, prev.1);
293 call_claimable_balances(node);
297 pub fn disconnect_all_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
298 let count = node.blocks.lock().unwrap().len() as u32 - 1;
299 disconnect_blocks(node, count);
302 pub struct TestChanMonCfg {
303 pub tx_broadcaster: test_utils::TestBroadcaster,
304 pub fee_estimator: test_utils::TestFeeEstimator,
305 pub chain_source: test_utils::TestChainSource,
306 pub persister: test_utils::TestPersister,
307 pub logger: test_utils::TestLogger,
308 pub keys_manager: test_utils::TestKeysInterface,
309 pub scorer: Mutex<test_utils::TestScorer>,
312 pub struct NodeCfg<'a> {
313 pub chain_source: &'a test_utils::TestChainSource,
314 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
315 pub fee_estimator: &'a test_utils::TestFeeEstimator,
316 pub router: test_utils::TestRouter<'a>,
317 pub chain_monitor: test_utils::TestChainMonitor<'a>,
318 pub keys_manager: &'a test_utils::TestKeysInterface,
319 pub logger: &'a test_utils::TestLogger,
320 pub network_graph: Arc<NetworkGraph<&'a test_utils::TestLogger>>,
321 pub node_seed: [u8; 32],
322 pub override_init_features: Rc<RefCell<Option<InitFeatures>>>,
325 pub struct Node<'a, 'b: 'a, 'c: 'b> {
326 pub chain_source: &'c test_utils::TestChainSource,
327 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
328 pub fee_estimator: &'c test_utils::TestFeeEstimator,
329 pub router: &'b test_utils::TestRouter<'c>,
330 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
331 pub keys_manager: &'b test_utils::TestKeysInterface,
332 pub node: &'a ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger>,
333 pub network_graph: &'a NetworkGraph<&'c test_utils::TestLogger>,
334 pub gossip_sync: P2PGossipSync<&'b NetworkGraph<&'c test_utils::TestLogger>, &'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
335 pub node_seed: [u8; 32],
336 pub network_payment_count: Rc<RefCell<u8>>,
337 pub network_chan_count: Rc<RefCell<u32>>,
338 pub logger: &'c test_utils::TestLogger,
339 pub blocks: Arc<Mutex<Vec<(Block, u32)>>>,
340 pub connect_style: Rc<RefCell<ConnectStyle>>,
341 pub override_init_features: Rc<RefCell<Option<InitFeatures>>>,
343 impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
344 pub fn best_block_hash(&self) -> BlockHash {
345 self.blocks.lock().unwrap().last().unwrap().0.block_hash()
347 pub fn best_block_info(&self) -> (BlockHash, u32) {
348 self.blocks.lock().unwrap().last().map(|(a, b)| (a.block_hash(), *b)).unwrap()
350 pub fn get_block_header(&self, height: u32) -> BlockHeader {
351 self.blocks.lock().unwrap()[height as usize].0.header
355 /// If we need an unsafe pointer to a `Node` (ie to reference it in a thread
356 /// pre-std::thread::scope), this provides that with `Sync`. Note that accessing some of the fields
357 /// in the `Node` are not safe to use (i.e. the ones behind an `Rc`), but that's left to the caller
359 pub struct NodePtr(pub *const Node<'static, 'static, 'static>);
361 pub fn from_node<'a, 'b: 'a, 'c: 'b>(node: &Node<'a, 'b, 'c>) -> Self {
362 Self((node as *const Node<'a, 'b, 'c>).cast())
365 unsafe impl Send for NodePtr {}
366 unsafe impl Sync for NodePtr {}
368 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
371 // Check that we processed all pending events
372 let msg_events = self.node.get_and_clear_pending_msg_events();
373 if !msg_events.is_empty() {
374 panic!("Had excess message events on node {}: {:?}", self.logger.id, msg_events);
376 let events = self.node.get_and_clear_pending_events();
377 if !events.is_empty() {
378 panic!("Had excess events on node {}: {:?}", self.logger.id, events);
380 let added_monitors = self.chain_monitor.added_monitors.lock().unwrap().split_off(0);
381 if !added_monitors.is_empty() {
382 panic!("Had {} excess added monitors on node {}", added_monitors.len(), self.logger.id);
385 // Check that if we serialize the network graph, we can deserialize it again.
386 let network_graph = {
387 let mut w = test_utils::TestVecWriter(Vec::new());
388 self.network_graph.write(&mut w).unwrap();
389 let network_graph_deser = <NetworkGraph<_>>::read(&mut io::Cursor::new(&w.0), self.logger).unwrap();
390 assert!(network_graph_deser == *self.network_graph);
391 let gossip_sync = P2PGossipSync::new(
392 &network_graph_deser, Some(self.chain_source), self.logger
394 let mut chan_progress = 0;
396 let orig_announcements = self.gossip_sync.get_next_channel_announcement(chan_progress);
397 let deserialized_announcements = gossip_sync.get_next_channel_announcement(chan_progress);
398 assert!(orig_announcements == deserialized_announcements);
399 chan_progress = match orig_announcements {
400 Some(announcement) => announcement.0.contents.short_channel_id + 1,
404 let mut node_progress = None;
406 let orig_announcements = self.gossip_sync.get_next_node_announcement(node_progress.as_ref());
407 let deserialized_announcements = gossip_sync.get_next_node_announcement(node_progress.as_ref());
408 assert!(orig_announcements == deserialized_announcements);
409 node_progress = match orig_announcements {
410 Some(announcement) => Some(announcement.contents.node_id),
417 // Check that if we serialize and then deserialize all our channel monitors we get the
418 // same set of outputs to watch for on chain as we have now. Note that if we write
419 // tests that fully close channels and remove the monitors at some point this may break.
420 let feeest = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
421 let mut deserialized_monitors = Vec::new();
423 for outpoint in self.chain_monitor.chain_monitor.list_monitors() {
424 let mut w = test_utils::TestVecWriter(Vec::new());
425 self.chain_monitor.chain_monitor.get_monitor(outpoint).unwrap().write(&mut w).unwrap();
426 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
427 &mut io::Cursor::new(&w.0), (self.keys_manager, self.keys_manager)).unwrap();
428 deserialized_monitors.push(deserialized_monitor);
432 let broadcaster = test_utils::TestBroadcaster {
433 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone()),
434 blocks: Arc::new(Mutex::new(self.tx_broadcaster.blocks.lock().unwrap().clone())),
437 // Before using all the new monitors to check the watch outpoints, use the full set of
438 // them to ensure we can write and reload our ChannelManager.
440 let mut channel_monitors = HashMap::new();
441 for monitor in deserialized_monitors.iter_mut() {
442 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
445 let scorer = Mutex::new(test_utils::TestScorer::new());
446 let mut w = test_utils::TestVecWriter(Vec::new());
447 self.node.write(&mut w).unwrap();
448 <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut io::Cursor::new(w.0), ChannelManagerReadArgs {
449 default_config: *self.node.get_current_default_configuration(),
450 entropy_source: self.keys_manager,
451 node_signer: self.keys_manager,
452 signer_provider: self.keys_manager,
453 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) },
454 router: &test_utils::TestRouter::new(Arc::new(network_graph), &scorer),
455 chain_monitor: self.chain_monitor,
456 tx_broadcaster: &broadcaster,
457 logger: &self.logger,
462 let persister = test_utils::TestPersister::new();
463 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
464 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister, &self.keys_manager);
465 for deserialized_monitor in deserialized_monitors.drain(..) {
466 if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != ChannelMonitorUpdateStatus::Completed {
470 assert_eq!(*chain_source.watched_txn.unsafe_well_ordered_double_lock_self(), *self.chain_source.watched_txn.unsafe_well_ordered_double_lock_self());
471 assert_eq!(*chain_source.watched_outputs.unsafe_well_ordered_double_lock_self(), *self.chain_source.watched_outputs.unsafe_well_ordered_double_lock_self());
476 pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
477 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001)
480 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) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
481 let (channel_ready, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat);
482 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &channel_ready);
483 (announcement, as_update, bs_update, channel_id, tx)
487 /// Gets an RAA and CS which were sent in response to a commitment update
488 macro_rules! get_revoke_commit_msgs {
489 ($node: expr, $node_id: expr) => {
491 use $crate::util::events::MessageSendEvent;
492 let events = $node.node.get_and_clear_pending_msg_events();
493 assert_eq!(events.len(), 2);
495 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
496 assert_eq!(*node_id, $node_id);
499 _ => panic!("Unexpected event"),
501 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
502 assert_eq!(*node_id, $node_id);
503 assert!(updates.update_add_htlcs.is_empty());
504 assert!(updates.update_fulfill_htlcs.is_empty());
505 assert!(updates.update_fail_htlcs.is_empty());
506 assert!(updates.update_fail_malformed_htlcs.is_empty());
507 assert!(updates.update_fee.is_none());
508 updates.commitment_signed.clone()
510 _ => panic!("Unexpected event"),
516 /// Get an specific event message from the pending events queue.
518 macro_rules! get_event_msg {
519 ($node: expr, $event_type: path, $node_id: expr) => {
521 let events = $node.node.get_and_clear_pending_msg_events();
522 assert_eq!(events.len(), 1);
524 $event_type { ref node_id, ref msg } => {
525 assert_eq!(*node_id, $node_id);
528 _ => panic!("Unexpected event"),
534 /// Get an error message from the pending events queue.
536 macro_rules! get_err_msg {
537 ($node: expr, $node_id: expr) => {
539 let events = $node.node.get_and_clear_pending_msg_events();
540 assert_eq!(events.len(), 1);
542 $crate::util::events::MessageSendEvent::HandleError {
543 action: $crate::ln::msgs::ErrorAction::SendErrorMessage { ref msg }, ref node_id
545 assert_eq!(*node_id, $node_id);
548 _ => panic!("Unexpected event"),
554 /// Get a specific event from the pending events queue.
556 macro_rules! get_event {
557 ($node: expr, $event_type: path) => {
559 let mut events = $node.node.get_and_clear_pending_events();
560 assert_eq!(events.len(), 1);
561 let ev = events.pop().unwrap();
563 $event_type { .. } => {
566 _ => panic!("Unexpected event"),
573 /// Gets an UpdateHTLCs MessageSendEvent
574 macro_rules! get_htlc_update_msgs {
575 ($node: expr, $node_id: expr) => {
577 let events = $node.node.get_and_clear_pending_msg_events();
578 assert_eq!(events.len(), 1);
580 $crate::util::events::MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
581 assert_eq!(*node_id, $node_id);
584 _ => panic!("Unexpected event"),
590 /// Fetches the first `msg_event` to the passed `node_id` in the passed `msg_events` vec.
591 /// Returns the `msg_event`.
593 /// Note that even though `BroadcastChannelAnnouncement` and `BroadcastChannelUpdate`
594 /// `msg_events` are stored under specific peers, this function does not fetch such `msg_events` as
595 /// such messages are intended to all peers.
596 pub fn remove_first_msg_event_to_node(msg_node_id: &PublicKey, msg_events: &mut Vec<MessageSendEvent>) -> MessageSendEvent {
597 let ev_index = msg_events.iter().position(|e| { match e {
598 MessageSendEvent::SendAcceptChannel { node_id, .. } => {
599 node_id == msg_node_id
601 MessageSendEvent::SendOpenChannel { node_id, .. } => {
602 node_id == msg_node_id
604 MessageSendEvent::SendFundingCreated { node_id, .. } => {
605 node_id == msg_node_id
607 MessageSendEvent::SendFundingSigned { node_id, .. } => {
608 node_id == msg_node_id
610 MessageSendEvent::SendChannelReady { node_id, .. } => {
611 node_id == msg_node_id
613 MessageSendEvent::SendAnnouncementSignatures { node_id, .. } => {
614 node_id == msg_node_id
616 MessageSendEvent::UpdateHTLCs { node_id, .. } => {
617 node_id == msg_node_id
619 MessageSendEvent::SendRevokeAndACK { node_id, .. } => {
620 node_id == msg_node_id
622 MessageSendEvent::SendClosingSigned { node_id, .. } => {
623 node_id == msg_node_id
625 MessageSendEvent::SendShutdown { node_id, .. } => {
626 node_id == msg_node_id
628 MessageSendEvent::SendChannelReestablish { node_id, .. } => {
629 node_id == msg_node_id
631 MessageSendEvent::SendChannelAnnouncement { node_id, .. } => {
632 node_id == msg_node_id
634 MessageSendEvent::BroadcastChannelAnnouncement { .. } => {
637 MessageSendEvent::BroadcastChannelUpdate { .. } => {
640 MessageSendEvent::BroadcastNodeAnnouncement { .. } => {
643 MessageSendEvent::SendChannelUpdate { node_id, .. } => {
644 node_id == msg_node_id
646 MessageSendEvent::HandleError { node_id, .. } => {
647 node_id == msg_node_id
649 MessageSendEvent::SendChannelRangeQuery { node_id, .. } => {
650 node_id == msg_node_id
652 MessageSendEvent::SendShortIdsQuery { node_id, .. } => {
653 node_id == msg_node_id
655 MessageSendEvent::SendReplyChannelRange { node_id, .. } => {
656 node_id == msg_node_id
658 MessageSendEvent::SendGossipTimestampFilter { node_id, .. } => {
659 node_id == msg_node_id
662 if ev_index.is_some() {
663 msg_events.remove(ev_index.unwrap())
665 panic!("Couldn't find any MessageSendEvent to the node!")
670 macro_rules! get_channel_ref {
671 ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
673 $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
674 $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
675 $peer_state_lock.channel_by_id.get_mut(&$channel_id).unwrap()
681 macro_rules! get_feerate {
682 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
684 let mut per_peer_state_lock;
685 let mut peer_state_lock;
686 let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
693 macro_rules! get_opt_anchors {
694 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
696 let mut per_peer_state_lock;
697 let mut peer_state_lock;
698 let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
704 /// Returns a channel monitor given a channel id, making some naive assumptions
706 macro_rules! get_monitor {
707 ($node: expr, $channel_id: expr) => {
709 use bitcoin::hashes::Hash;
710 let mut monitor = None;
711 // Assume funding vout is either 0 or 1 blindly
713 if let Ok(mon) = $node.chain_monitor.chain_monitor.get_monitor(
714 $crate::chain::transaction::OutPoint {
715 txid: bitcoin::Txid::from_slice(&$channel_id[..]).unwrap(), index
727 /// Returns any local commitment transactions for the channel.
729 macro_rules! get_local_commitment_txn {
730 ($node: expr, $channel_id: expr) => {
732 $crate::get_monitor!($node, $channel_id).unsafe_get_latest_holder_commitment_txn(&$node.logger)
737 /// Check the error from attempting a payment.
739 macro_rules! unwrap_send_err {
740 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
742 &Err(PaymentSendFailure::AllFailedResendSafe(ref fails)) if $all_failed => {
743 assert_eq!(fails.len(), 1);
749 &Err(PaymentSendFailure::PartialFailure { ref results, .. }) if !$all_failed => {
750 assert_eq!(results.len(), 1);
752 Err($type) => { $check },
761 /// Check whether N channel monitor(s) have been added.
763 macro_rules! check_added_monitors {
764 ($node: expr, $count: expr) => {
766 let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
767 assert_eq!(added_monitors.len(), $count);
768 added_monitors.clear();
773 pub fn _reload_node<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, default_config: UserConfig, chanman_encoded: &[u8], monitors_encoded: &[&[u8]]) -> ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger> {
774 let mut monitors_read = Vec::with_capacity(monitors_encoded.len());
775 for encoded in monitors_encoded {
776 let mut monitor_read = &encoded[..];
777 let (_, monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>
778 ::read(&mut monitor_read, (node.keys_manager, node.keys_manager)).unwrap();
779 assert!(monitor_read.is_empty());
780 monitors_read.push(monitor);
783 let mut node_read = &chanman_encoded[..];
784 let (_, node_deserialized) = {
785 let mut channel_monitors = HashMap::new();
786 for monitor in monitors_read.iter_mut() {
787 assert!(channel_monitors.insert(monitor.get_funding_txo().0, monitor).is_none());
789 <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut node_read, ChannelManagerReadArgs {
791 entropy_source: node.keys_manager,
792 node_signer: node.keys_manager,
793 signer_provider: node.keys_manager,
794 fee_estimator: node.fee_estimator,
796 chain_monitor: node.chain_monitor,
797 tx_broadcaster: node.tx_broadcaster,
802 assert!(node_read.is_empty());
804 for monitor in monitors_read.drain(..) {
805 assert_eq!(node.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor),
806 ChannelMonitorUpdateStatus::Completed);
807 check_added_monitors!(node, 1);
814 macro_rules! reload_node {
815 ($node: expr, $new_config: expr, $chanman_encoded: expr, $monitors_encoded: expr, $persister: ident, $new_chain_monitor: ident, $new_channelmanager: ident) => {
816 let chanman_encoded = $chanman_encoded;
818 $persister = test_utils::TestPersister::new();
819 $new_chain_monitor = test_utils::TestChainMonitor::new(Some($node.chain_source), $node.tx_broadcaster.clone(), $node.logger, $node.fee_estimator, &$persister, &$node.keys_manager);
820 $node.chain_monitor = &$new_chain_monitor;
822 $new_channelmanager = _reload_node(&$node, $new_config, &chanman_encoded, $monitors_encoded);
823 $node.node = &$new_channelmanager;
825 ($node: expr, $chanman_encoded: expr, $monitors_encoded: expr, $persister: ident, $new_chain_monitor: ident, $new_channelmanager: ident) => {
826 reload_node!($node, $crate::util::config::UserConfig::default(), $chanman_encoded, $monitors_encoded, $persister, $new_chain_monitor, $new_channelmanager);
830 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) {
831 let chan_id = *node.network_chan_count.borrow();
833 let events = node.node.get_and_clear_pending_events();
834 assert_eq!(events.len(), 1);
836 Event::FundingGenerationReady { ref temporary_channel_id, ref counterparty_node_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
837 assert_eq!(counterparty_node_id, expected_counterparty_node_id);
838 assert_eq!(*channel_value_satoshis, expected_chan_value);
839 assert_eq!(user_channel_id, expected_user_chan_id);
841 let tx = Transaction { version: chan_id as i32, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: vec![TxOut {
842 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
844 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
845 (*temporary_channel_id, tx, funding_outpoint)
847 _ => panic!("Unexpected event"),
850 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 {
851 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, &node_b.node.get_our_node_id(), channel_value, 42);
852 assert_eq!(temporary_channel_id, expected_temporary_channel_id);
854 assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, &node_b.node.get_our_node_id(), tx.clone()).is_ok());
855 check_added_monitors!(node_a, 0);
857 let funding_created_msg = get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id());
858 assert_eq!(funding_created_msg.temporary_channel_id, expected_temporary_channel_id);
859 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &funding_created_msg);
861 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
862 assert_eq!(added_monitors.len(), 1);
863 assert_eq!(added_monitors[0].0, funding_output);
864 added_monitors.clear();
867 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()));
869 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
870 assert_eq!(added_monitors.len(), 1);
871 assert_eq!(added_monitors[0].0, funding_output);
872 added_monitors.clear();
875 let events_4 = node_a.node.get_and_clear_pending_events();
876 assert_eq!(events_4.len(), 0);
878 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
879 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap()[0], tx);
880 node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
882 // Ensure that funding_transaction_generated is idempotent.
883 assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, &node_b.node.get_our_node_id(), tx.clone()).is_err());
884 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
885 check_added_monitors!(node_a, 0);
890 // Receiver must have been initialized with manually_accept_inbound_channels set to true.
891 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]) {
892 let initiator_channels = initiator.node.list_usable_channels().len();
893 let receiver_channels = receiver.node.list_usable_channels().len();
895 initiator.node.create_channel(receiver.node.get_our_node_id(), 100_000, 10_001, 42, initiator_config).unwrap();
896 let open_channel = get_event_msg!(initiator, MessageSendEvent::SendOpenChannel, receiver.node.get_our_node_id());
898 receiver.node.handle_open_channel(&initiator.node.get_our_node_id(), &open_channel);
899 let events = receiver.node.get_and_clear_pending_events();
900 assert_eq!(events.len(), 1);
902 Event::OpenChannelRequest { temporary_channel_id, .. } => {
903 receiver.node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &initiator.node.get_our_node_id(), 0).unwrap();
905 _ => panic!("Unexpected event"),
908 let accept_channel = get_event_msg!(receiver, MessageSendEvent::SendAcceptChannel, initiator.node.get_our_node_id());
909 assert_eq!(accept_channel.minimum_depth, 0);
910 initiator.node.handle_accept_channel(&receiver.node.get_our_node_id(), &accept_channel);
912 let (temporary_channel_id, tx, _) = create_funding_transaction(&initiator, &receiver.node.get_our_node_id(), 100_000, 42);
913 initiator.node.funding_transaction_generated(&temporary_channel_id, &receiver.node.get_our_node_id(), tx.clone()).unwrap();
914 let funding_created = get_event_msg!(initiator, MessageSendEvent::SendFundingCreated, receiver.node.get_our_node_id());
916 receiver.node.handle_funding_created(&initiator.node.get_our_node_id(), &funding_created);
917 check_added_monitors!(receiver, 1);
918 let bs_signed_locked = receiver.node.get_and_clear_pending_msg_events();
919 assert_eq!(bs_signed_locked.len(), 2);
920 let as_channel_ready;
921 match &bs_signed_locked[0] {
922 MessageSendEvent::SendFundingSigned { node_id, msg } => {
923 assert_eq!(*node_id, initiator.node.get_our_node_id());
924 initiator.node.handle_funding_signed(&receiver.node.get_our_node_id(), &msg);
925 check_added_monitors!(initiator, 1);
927 assert_eq!(initiator.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
928 assert_eq!(initiator.tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0)[0], tx);
930 as_channel_ready = get_event_msg!(initiator, MessageSendEvent::SendChannelReady, receiver.node.get_our_node_id());
932 _ => panic!("Unexpected event"),
934 match &bs_signed_locked[1] {
935 MessageSendEvent::SendChannelReady { node_id, msg } => {
936 assert_eq!(*node_id, initiator.node.get_our_node_id());
937 initiator.node.handle_channel_ready(&receiver.node.get_our_node_id(), &msg);
939 _ => panic!("Unexpected event"),
942 receiver.node.handle_channel_ready(&initiator.node.get_our_node_id(), &as_channel_ready);
944 let as_channel_update = get_event_msg!(initiator, MessageSendEvent::SendChannelUpdate, receiver.node.get_our_node_id());
945 let bs_channel_update = get_event_msg!(receiver, MessageSendEvent::SendChannelUpdate, initiator.node.get_our_node_id());
947 initiator.node.handle_channel_update(&receiver.node.get_our_node_id(), &bs_channel_update);
948 receiver.node.handle_channel_update(&initiator.node.get_our_node_id(), &as_channel_update);
950 assert_eq!(initiator.node.list_usable_channels().len(), initiator_channels + 1);
951 assert_eq!(receiver.node.list_usable_channels().len(), receiver_channels + 1);
953 expect_channel_ready_event(&initiator, &receiver.node.get_our_node_id());
954 expect_channel_ready_event(&receiver, &initiator.node.get_our_node_id());
956 (tx, as_channel_ready.channel_id)
959 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) -> Transaction {
960 let create_chan_id = node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
961 let open_channel_msg = get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id());
962 assert_eq!(open_channel_msg.temporary_channel_id, create_chan_id);
963 assert_eq!(node_a.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 42);
964 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), &open_channel_msg);
965 let accept_channel_msg = get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id());
966 assert_eq!(accept_channel_msg.temporary_channel_id, create_chan_id);
967 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), &accept_channel_msg);
968 assert_ne!(node_b.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 0);
970 sign_funding_transaction(node_a, node_b, channel_value, create_chan_id)
973 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) {
974 confirm_transaction_at(node_conf, tx, conf_height);
975 connect_blocks(node_conf, CHAN_CONFIRM_DEPTH - 1);
976 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()));
979 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]) {
981 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
982 assert_eq!(events_6.len(), 3);
983 let announcement_sigs_idx = if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[1] {
984 assert_eq!(*node_id, node_recv.node.get_our_node_id());
986 } else if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[2] {
987 assert_eq!(*node_id, node_recv.node.get_our_node_id());
989 } else { panic!("Unexpected event: {:?}", events_6[1]); };
990 ((match events_6[0] {
991 MessageSendEvent::SendChannelReady { ref node_id, ref msg } => {
992 channel_id = msg.channel_id.clone();
993 assert_eq!(*node_id, node_recv.node.get_our_node_id());
996 _ => panic!("Unexpected event"),
997 }, match events_6[announcement_sigs_idx] {
998 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
999 assert_eq!(*node_id, node_recv.node.get_our_node_id());
1002 _ => panic!("Unexpected event"),
1006 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]) {
1007 let conf_height = core::cmp::max(node_a.best_block_info().1 + 1, node_b.best_block_info().1 + 1);
1008 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx, conf_height);
1009 confirm_transaction_at(node_a, tx, conf_height);
1010 connect_blocks(node_a, CHAN_CONFIRM_DEPTH - 1);
1011 expect_channel_ready_event(&node_a, &node_b.node.get_our_node_id());
1012 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
1015 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) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
1016 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat);
1017 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
1021 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) {
1022 node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
1023 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
1024 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
1026 let events_7 = node_b.node.get_and_clear_pending_msg_events();
1027 assert_eq!(events_7.len(), 1);
1028 let (announcement, bs_update) = match events_7[0] {
1029 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
1030 (msg, update_msg.clone().unwrap())
1032 _ => panic!("Unexpected event"),
1035 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
1036 let events_8 = node_a.node.get_and_clear_pending_msg_events();
1037 assert_eq!(events_8.len(), 1);
1038 let as_update = match events_8[0] {
1039 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
1040 assert!(*announcement == *msg);
1041 let update_msg = update_msg.clone().unwrap();
1042 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
1043 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
1046 _ => panic!("Unexpected event"),
1049 *node_a.network_chan_count.borrow_mut() += 1;
1051 expect_channel_ready_event(&node_b, &node_a.node.get_our_node_id());
1052 ((*announcement).clone(), as_update, bs_update)
1055 pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
1056 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001)
1059 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) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
1060 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat);
1061 update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
1062 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
1065 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) -> (msgs::ChannelReady, Transaction) {
1066 let mut no_announce_cfg = test_default_channel_config();
1067 no_announce_cfg.channel_handshake_config.announced_channel = false;
1068 nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, Some(no_announce_cfg)).unwrap();
1069 let open_channel = get_event_msg!(nodes[a], MessageSendEvent::SendOpenChannel, nodes[b].node.get_our_node_id());
1070 nodes[b].node.handle_open_channel(&nodes[a].node.get_our_node_id(), &open_channel);
1071 let accept_channel = get_event_msg!(nodes[b], MessageSendEvent::SendAcceptChannel, nodes[a].node.get_our_node_id());
1072 nodes[a].node.handle_accept_channel(&nodes[b].node.get_our_node_id(), &accept_channel);
1074 let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[a], &nodes[b].node.get_our_node_id(), channel_value, 42);
1075 nodes[a].node.funding_transaction_generated(&temporary_channel_id, &nodes[b].node.get_our_node_id(), tx.clone()).unwrap();
1076 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()));
1077 check_added_monitors!(nodes[b], 1);
1079 let cs_funding_signed = get_event_msg!(nodes[b], MessageSendEvent::SendFundingSigned, nodes[a].node.get_our_node_id());
1080 nodes[a].node.handle_funding_signed(&nodes[b].node.get_our_node_id(), &cs_funding_signed);
1081 check_added_monitors!(nodes[a], 1);
1083 let conf_height = core::cmp::max(nodes[a].best_block_info().1 + 1, nodes[b].best_block_info().1 + 1);
1084 confirm_transaction_at(&nodes[a], &tx, conf_height);
1085 connect_blocks(&nodes[a], CHAN_CONFIRM_DEPTH - 1);
1086 confirm_transaction_at(&nodes[b], &tx, conf_height);
1087 connect_blocks(&nodes[b], CHAN_CONFIRM_DEPTH - 1);
1088 let as_channel_ready = get_event_msg!(nodes[a], MessageSendEvent::SendChannelReady, nodes[b].node.get_our_node_id());
1089 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()));
1090 expect_channel_ready_event(&nodes[a], &nodes[b].node.get_our_node_id());
1091 let as_update = get_event_msg!(nodes[a], MessageSendEvent::SendChannelUpdate, nodes[b].node.get_our_node_id());
1092 nodes[b].node.handle_channel_ready(&nodes[a].node.get_our_node_id(), &as_channel_ready);
1093 expect_channel_ready_event(&nodes[b], &nodes[a].node.get_our_node_id());
1094 let bs_update = get_event_msg!(nodes[b], MessageSendEvent::SendChannelUpdate, nodes[a].node.get_our_node_id());
1096 nodes[a].node.handle_channel_update(&nodes[b].node.get_our_node_id(), &bs_update);
1097 nodes[b].node.handle_channel_update(&nodes[a].node.get_our_node_id(), &as_update);
1099 let mut found_a = false;
1100 for chan in nodes[a].node.list_usable_channels() {
1101 if chan.channel_id == as_channel_ready.channel_id {
1104 assert!(!chan.is_public);
1109 let mut found_b = false;
1110 for chan in nodes[b].node.list_usable_channels() {
1111 if chan.channel_id == as_channel_ready.channel_id {
1114 assert!(!chan.is_public);
1119 (as_channel_ready, tx)
1122 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) {
1124 assert!(node.gossip_sync.handle_channel_announcement(ann).unwrap());
1125 node.gossip_sync.handle_channel_update(upd_1).unwrap();
1126 node.gossip_sync.handle_channel_update(upd_2).unwrap();
1128 // Note that channel_updates are also delivered to ChannelManagers to ensure we have
1129 // forwarding info for local channels even if its not accepted in the network graph.
1130 node.node.handle_channel_update(&nodes[a].node.get_our_node_id(), &upd_1);
1131 node.node.handle_channel_update(&nodes[b].node.get_our_node_id(), &upd_2);
1136 macro_rules! check_spends {
1137 ($tx: expr, $($spends_txn: expr),*) => {
1140 for outp in $spends_txn.output.iter() {
1141 assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Input tx output didn't meet dust limit");
1144 for outp in $tx.output.iter() {
1145 assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Spending tx output didn't meet dust limit");
1147 let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
1149 if out_point.txid == $spends_txn.txid() {
1150 return $spends_txn.output.get(out_point.vout as usize).cloned()
1155 let mut total_value_in = 0;
1156 for input in $tx.input.iter() {
1157 total_value_in += get_output(&input.previous_output).unwrap().value;
1159 let mut total_value_out = 0;
1160 for output in $tx.output.iter() {
1161 total_value_out += output.value;
1163 let min_fee = ($tx.weight() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
1164 // Input amount - output amount = fee, so check that out + min_fee is smaller than input
1165 assert!(total_value_out + min_fee <= total_value_in);
1166 $tx.verify(get_output).unwrap();
1171 macro_rules! get_closing_signed_broadcast {
1172 ($node: expr, $dest_pubkey: expr) => {
1174 let events = $node.get_and_clear_pending_msg_events();
1175 assert!(events.len() == 1 || events.len() == 2);
1176 (match events[events.len() - 1] {
1177 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1178 assert_eq!(msg.contents.flags & 2, 2);
1181 _ => panic!("Unexpected event"),
1182 }, if events.len() == 2 {
1184 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
1185 assert_eq!(*node_id, $dest_pubkey);
1188 _ => panic!("Unexpected event"),
1196 macro_rules! check_warn_msg {
1197 ($node: expr, $recipient_node_id: expr, $chan_id: expr) => {{
1198 let msg_events = $node.node.get_and_clear_pending_msg_events();
1199 assert_eq!(msg_events.len(), 1);
1200 match msg_events[0] {
1201 MessageSendEvent::HandleError { action: ErrorAction::SendWarningMessage { ref msg, log_level: _ }, node_id } => {
1202 assert_eq!(node_id, $recipient_node_id);
1203 assert_eq!(msg.channel_id, $chan_id);
1206 _ => panic!("Unexpected event"),
1211 /// Check that a channel's closing channel update has been broadcasted, and optionally
1212 /// check whether an error message event has occurred.
1214 macro_rules! check_closed_broadcast {
1215 ($node: expr, $with_error_msg: expr) => {{
1216 use $crate::util::events::MessageSendEvent;
1217 use $crate::ln::msgs::ErrorAction;
1219 let msg_events = $node.node.get_and_clear_pending_msg_events();
1220 assert_eq!(msg_events.len(), if $with_error_msg { 2 } else { 1 });
1221 match msg_events[0] {
1222 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1223 assert_eq!(msg.contents.flags & 2, 2);
1225 _ => panic!("Unexpected event"),
1227 if $with_error_msg {
1228 match msg_events[1] {
1229 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
1230 // TODO: Check node_id
1233 _ => panic!("Unexpected event"),
1239 /// Check that a channel's closing channel events has been issued
1241 macro_rules! check_closed_event {
1242 ($node: expr, $events: expr, $reason: expr) => {
1243 check_closed_event!($node, $events, $reason, false);
1245 ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr) => {{
1246 use $crate::util::events::Event;
1248 let events = $node.node.get_and_clear_pending_events();
1249 assert_eq!(events.len(), $events, "{:?}", events);
1250 let expected_reason = $reason;
1251 let mut issues_discard_funding = false;
1252 for event in events {
1254 Event::ChannelClosed { ref reason, .. } => {
1255 assert_eq!(*reason, expected_reason);
1257 Event::DiscardFunding { .. } => {
1258 issues_discard_funding = true;
1260 _ => panic!("Unexpected event"),
1263 assert_eq!($is_check_discard_funding, issues_discard_funding);
1267 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) {
1268 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) };
1269 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) };
1272 node_a.close_channel(channel_id, &node_b.get_our_node_id()).unwrap();
1273 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
1275 let events_1 = node_b.get_and_clear_pending_msg_events();
1276 assert!(events_1.len() >= 1);
1277 let shutdown_b = match events_1[0] {
1278 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
1279 assert_eq!(node_id, &node_a.get_our_node_id());
1282 _ => panic!("Unexpected event"),
1285 let closing_signed_b = if !close_inbound_first {
1286 assert_eq!(events_1.len(), 1);
1289 Some(match events_1[1] {
1290 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
1291 assert_eq!(node_id, &node_a.get_our_node_id());
1294 _ => panic!("Unexpected event"),
1298 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
1299 let (as_update, bs_update) = if close_inbound_first {
1300 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
1301 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
1303 node_b.handle_closing_signed(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id()));
1304 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
1305 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
1306 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
1308 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
1309 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
1310 assert!(none_a.is_none());
1311 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
1312 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
1313 (as_update, bs_update)
1315 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
1317 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
1318 node_a.handle_closing_signed(&node_b.get_our_node_id(), &get_event_msg!(struct_b, MessageSendEvent::SendClosingSigned, node_a.get_our_node_id()));
1320 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
1321 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
1322 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
1324 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
1325 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
1326 assert!(none_b.is_none());
1327 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
1328 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
1329 (as_update, bs_update)
1331 assert_eq!(tx_a, tx_b);
1332 check_spends!(tx_a, funding_tx);
1334 (as_update, bs_update, tx_a)
1337 pub struct SendEvent {
1338 pub node_id: PublicKey,
1339 pub msgs: Vec<msgs::UpdateAddHTLC>,
1340 pub commitment_msg: msgs::CommitmentSigned,
1343 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
1344 assert!(updates.update_fulfill_htlcs.is_empty());
1345 assert!(updates.update_fail_htlcs.is_empty());
1346 assert!(updates.update_fail_malformed_htlcs.is_empty());
1347 assert!(updates.update_fee.is_none());
1348 SendEvent { node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
1351 pub fn from_event(event: MessageSendEvent) -> SendEvent {
1353 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
1354 _ => panic!("Unexpected event type!"),
1358 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
1359 let mut events = node.node.get_and_clear_pending_msg_events();
1360 assert_eq!(events.len(), 1);
1361 SendEvent::from_event(events.pop().unwrap())
1366 macro_rules! expect_pending_htlcs_forwardable_conditions {
1367 ($node: expr, $expected_failures: expr) => {{
1368 let expected_failures = $expected_failures;
1369 let events = $node.node.get_and_clear_pending_events();
1371 $crate::util::events::Event::PendingHTLCsForwardable { .. } => { },
1372 _ => panic!("Unexpected event {:?}", events),
1375 let count = expected_failures.len() + 1;
1376 assert_eq!(events.len(), count);
1378 if expected_failures.len() > 0 {
1379 expect_htlc_handling_failed_destinations!(events, expected_failures)
1385 macro_rules! expect_htlc_handling_failed_destinations {
1386 ($events: expr, $expected_failures: expr) => {{
1387 for event in $events {
1389 $crate::util::events::Event::PendingHTLCsForwardable { .. } => { },
1390 $crate::util::events::Event::HTLCHandlingFailed { ref failed_next_destination, .. } => {
1391 assert!($expected_failures.contains(&failed_next_destination))
1393 _ => panic!("Unexpected destination"),
1400 /// Clears (and ignores) a PendingHTLCsForwardable event
1401 macro_rules! expect_pending_htlcs_forwardable_ignore {
1403 expect_pending_htlcs_forwardable_conditions!($node, vec![]);
1408 /// Clears (and ignores) PendingHTLCsForwardable and HTLCHandlingFailed events
1409 macro_rules! expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore {
1410 ($node: expr, $expected_failures: expr) => {{
1411 expect_pending_htlcs_forwardable_conditions!($node, $expected_failures);
1416 /// Handles a PendingHTLCsForwardable event
1417 macro_rules! expect_pending_htlcs_forwardable {
1419 expect_pending_htlcs_forwardable_ignore!($node);
1420 $node.node.process_pending_htlc_forwards();
1422 // Ensure process_pending_htlc_forwards is idempotent.
1423 $node.node.process_pending_htlc_forwards();
1428 /// Handles a PendingHTLCsForwardable and HTLCHandlingFailed event
1429 macro_rules! expect_pending_htlcs_forwardable_and_htlc_handling_failed {
1430 ($node: expr, $expected_failures: expr) => {{
1431 expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!($node, $expected_failures);
1432 $node.node.process_pending_htlc_forwards();
1434 // Ensure process_pending_htlc_forwards is idempotent.
1435 $node.node.process_pending_htlc_forwards();
1440 macro_rules! expect_pending_htlcs_forwardable_from_events {
1441 ($node: expr, $events: expr, $ignore: expr) => {{
1442 assert_eq!($events.len(), 1);
1444 Event::PendingHTLCsForwardable { .. } => { },
1445 _ => panic!("Unexpected event"),
1448 $node.node.process_pending_htlc_forwards();
1450 // Ensure process_pending_htlc_forwards is idempotent.
1451 $node.node.process_pending_htlc_forwards();
1457 /// Performs the "commitment signed dance" - the series of message exchanges which occur after a
1458 /// commitment update.
1459 macro_rules! commitment_signed_dance {
1460 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
1461 $crate::ln::functional_test_utils::do_commitment_signed_dance(&$node_a, &$node_b, &$commitment_signed, $fail_backwards, true);
1463 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
1464 $crate::ln::functional_test_utils::do_main_commitment_signed_dance(&$node_a, &$node_b, $fail_backwards)
1466 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
1468 check_added_monitors!($node_a, 0);
1469 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1470 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
1471 check_added_monitors!($node_a, 1);
1472 let (extra_msg_option, bs_revoke_and_ack) = $crate::ln::functional_test_utils::do_main_commitment_signed_dance(&$node_a, &$node_b, $fail_backwards);
1473 assert!(extra_msg_option.is_none());
1477 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
1479 let (extra_msg_option, bs_revoke_and_ack) = $crate::ln::functional_test_utils::do_main_commitment_signed_dance(&$node_a, &$node_b, $fail_backwards);
1480 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1481 check_added_monitors!($node_a, 1);
1485 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
1486 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
1488 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
1489 $crate::ln::functional_test_utils::do_commitment_signed_dance(&$node_a, &$node_b, &$commitment_signed, $fail_backwards, false);
1494 pub fn do_main_commitment_signed_dance(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, fail_backwards: bool) -> (Option<MessageSendEvent>, msgs::RevokeAndACK) {
1495 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(node_a, node_b.node.get_our_node_id());
1496 check_added_monitors!(node_b, 0);
1497 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1498 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1499 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1500 check_added_monitors!(node_b, 1);
1501 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &as_commitment_signed);
1502 let (bs_revoke_and_ack, extra_msg_option) = {
1503 let mut events = node_b.node.get_and_clear_pending_msg_events();
1504 assert!(events.len() <= 2);
1505 let node_a_event = remove_first_msg_event_to_node(&node_a.node.get_our_node_id(), &mut events);
1506 (match node_a_event {
1507 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1508 assert_eq!(*node_id, node_a.node.get_our_node_id());
1511 _ => panic!("Unexpected event"),
1512 }, events.get(0).map(|e| e.clone()))
1514 check_added_monitors!(node_b, 1);
1516 assert!(node_a.node.get_and_clear_pending_events().is_empty());
1517 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1519 (extra_msg_option, bs_revoke_and_ack)
1522 pub fn do_commitment_signed_dance(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, commitment_signed: &msgs::CommitmentSigned, fail_backwards: bool, skip_last_step: bool) {
1523 check_added_monitors!(node_a, 0);
1524 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1525 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), commitment_signed);
1526 check_added_monitors!(node_a, 1);
1528 commitment_signed_dance!(node_a, node_b, (), fail_backwards, true, false);
1530 if skip_last_step { return; }
1533 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(node_a,
1534 vec![crate::util::events::HTLCDestination::NextHopChannel{ node_id: Some(node_b.node.get_our_node_id()), channel_id: commitment_signed.channel_id }]);
1535 check_added_monitors!(node_a, 1);
1537 let node_a_per_peer_state = node_a.node.per_peer_state.read().unwrap();
1538 let mut number_of_msg_events = 0;
1539 for (cp_id, peer_state_mutex) in node_a_per_peer_state.iter() {
1540 let peer_state = peer_state_mutex.lock().unwrap();
1541 let cp_pending_msg_events = &peer_state.pending_msg_events;
1542 number_of_msg_events += cp_pending_msg_events.len();
1543 if cp_pending_msg_events.len() == 1 {
1544 if let MessageSendEvent::UpdateHTLCs { .. } = cp_pending_msg_events[0] {
1545 assert_ne!(*cp_id, node_b.node.get_our_node_id());
1546 } else { panic!("Unexpected event"); }
1549 // Expecting the failure backwards event to the previous hop (not `node_b`)
1550 assert_eq!(number_of_msg_events, 1);
1552 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1556 /// Get a payment preimage and hash.
1558 macro_rules! get_payment_preimage_hash {
1559 ($dest_node: expr) => {
1561 get_payment_preimage_hash!($dest_node, None)
1564 ($dest_node: expr, $min_value_msat: expr) => {
1566 crate::get_payment_preimage_hash!($dest_node, $min_value_msat, None)
1569 ($dest_node: expr, $min_value_msat: expr, $min_final_cltv_expiry_delta: expr) => {
1571 use bitcoin::hashes::Hash as _;
1572 let mut payment_count = $dest_node.network_payment_count.borrow_mut();
1573 let payment_preimage = $crate::ln::PaymentPreimage([*payment_count; 32]);
1574 *payment_count += 1;
1575 let payment_hash = $crate::ln::PaymentHash(
1576 bitcoin::hashes::sha256::Hash::hash(&payment_preimage.0[..]).into_inner());
1577 let payment_secret = $dest_node.node.create_inbound_payment_for_hash(payment_hash, $min_value_msat, 7200, $min_final_cltv_expiry_delta).unwrap();
1578 (payment_preimage, payment_hash, payment_secret)
1584 macro_rules! get_route {
1585 ($send_node: expr, $payment_params: expr, $recv_value: expr, $cltv: expr) => {{
1586 use $crate::chain::keysinterface::EntropySource;
1587 let scorer = $crate::util::test_utils::TestScorer::new();
1588 let keys_manager = $crate::util::test_utils::TestKeysInterface::new(&[0u8; 32], bitcoin::network::constants::Network::Testnet);
1589 let random_seed_bytes = keys_manager.get_secure_random_bytes();
1590 $crate::routing::router::get_route(
1591 &$send_node.node.get_our_node_id(), &$payment_params, &$send_node.network_graph.read_only(),
1592 Some(&$send_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
1593 $recv_value, $cltv, $send_node.logger, &scorer, &random_seed_bytes
1600 macro_rules! get_route_and_payment_hash {
1601 ($send_node: expr, $recv_node: expr, $recv_value: expr) => {{
1602 let payment_params = $crate::routing::router::PaymentParameters::from_node_id($recv_node.node.get_our_node_id(), TEST_FINAL_CLTV)
1603 .with_features($recv_node.node.invoice_features());
1604 $crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value, TEST_FINAL_CLTV)
1606 ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr, $cltv: expr) => {{
1607 let (payment_preimage, payment_hash, payment_secret) = $crate::get_payment_preimage_hash!($recv_node, Some($recv_value));
1608 let route = $crate::get_route!($send_node, $payment_params, $recv_value, $cltv);
1609 (route.unwrap(), payment_hash, payment_preimage, payment_secret)
1614 #[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
1615 macro_rules! expect_payment_claimable {
1616 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr) => {
1617 expect_payment_claimable!($node, $expected_payment_hash, $expected_payment_secret, $expected_recv_value, None, $node.node.get_our_node_id())
1619 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr, $expected_payment_preimage: expr, $expected_receiver_node_id: expr) => {
1620 let events = $node.node.get_and_clear_pending_events();
1621 assert_eq!(events.len(), 1);
1623 $crate::util::events::Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, via_channel_id: _, via_user_channel_id: _ } => {
1624 assert_eq!($expected_payment_hash, *payment_hash);
1625 assert_eq!($expected_recv_value, amount_msat);
1626 assert_eq!($expected_receiver_node_id, receiver_node_id.unwrap());
1628 $crate::util::events::PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1629 assert_eq!(&$expected_payment_preimage, payment_preimage);
1630 assert_eq!($expected_payment_secret, *payment_secret);
1635 _ => panic!("Unexpected event"),
1641 #[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
1642 macro_rules! expect_payment_claimed {
1643 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
1644 let events = $node.node.get_and_clear_pending_events();
1645 assert_eq!(events.len(), 1);
1647 $crate::util::events::Event::PaymentClaimed { ref payment_hash, amount_msat, .. } => {
1648 assert_eq!($expected_payment_hash, *payment_hash);
1649 assert_eq!($expected_recv_value, amount_msat);
1651 _ => panic!("Unexpected event"),
1658 macro_rules! expect_payment_sent_without_paths {
1659 ($node: expr, $expected_payment_preimage: expr) => {
1660 expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, false);
1662 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1663 expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, false);
1668 macro_rules! expect_payment_sent {
1669 ($node: expr, $expected_payment_preimage: expr) => {
1670 $crate::expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, true);
1672 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1673 $crate::expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, true);
1675 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => { {
1676 use bitcoin::hashes::Hash as _;
1677 let events = $node.node.get_and_clear_pending_events();
1678 let expected_payment_hash = $crate::ln::PaymentHash(
1679 bitcoin::hashes::sha256::Hash::hash(&$expected_payment_preimage.0).into_inner());
1681 assert!(events.len() > 1);
1683 assert_eq!(events.len(), 1);
1685 let expected_payment_id = match events[0] {
1686 $crate::util::events::Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
1687 assert_eq!($expected_payment_preimage, *payment_preimage);
1688 assert_eq!(expected_payment_hash, *payment_hash);
1689 assert!(fee_paid_msat.is_some());
1690 if $expected_fee_msat_opt.is_some() {
1691 assert_eq!(*fee_paid_msat, $expected_fee_msat_opt);
1695 _ => panic!("Unexpected event"),
1698 for i in 1..events.len() {
1700 $crate::util::events::Event::PaymentPathSuccessful { payment_id, payment_hash, .. } => {
1701 assert_eq!(payment_id, expected_payment_id);
1702 assert_eq!(payment_hash, Some(expected_payment_hash));
1704 _ => panic!("Unexpected event"),
1713 macro_rules! expect_payment_path_successful {
1715 let events = $node.node.get_and_clear_pending_events();
1716 assert_eq!(events.len(), 1);
1718 $crate::util::events::Event::PaymentPathSuccessful { .. } => {},
1719 _ => panic!("Unexpected event"),
1724 macro_rules! expect_payment_forwarded {
1725 ($node: expr, $prev_node: expr, $next_node: expr, $expected_fee: expr, $upstream_force_closed: expr, $downstream_force_closed: expr) => {
1726 let events = $node.node.get_and_clear_pending_events();
1727 assert_eq!(events.len(), 1);
1729 Event::PaymentForwarded { fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id } => {
1730 assert_eq!(fee_earned_msat, $expected_fee);
1731 if fee_earned_msat.is_some() {
1732 // Is the event prev_channel_id in one of the channels between the two nodes?
1733 assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $prev_node.node.get_our_node_id() && x.channel_id == prev_channel_id.unwrap()));
1735 // We check for force closures since a force closed channel is removed from the
1736 // node's channel list
1737 if !$downstream_force_closed {
1738 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()));
1740 assert_eq!(claim_from_onchain_tx, $downstream_force_closed);
1742 _ => panic!("Unexpected event"),
1747 #[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
1748 pub fn expect_channel_ready_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, expected_counterparty_node_id: &PublicKey) {
1749 let events = node.node.get_and_clear_pending_events();
1750 assert_eq!(events.len(), 1);
1752 crate::util::events::Event::ChannelReady{ ref counterparty_node_id, .. } => {
1753 assert_eq!(*expected_counterparty_node_id, *counterparty_node_id);
1755 _ => panic!("Unexpected event"),
1760 pub struct PaymentFailedConditions<'a> {
1761 pub(crate) expected_htlc_error_data: Option<(u16, &'a [u8])>,
1762 pub(crate) expected_blamed_scid: Option<u64>,
1763 pub(crate) expected_blamed_chan_closed: Option<bool>,
1764 pub(crate) expected_mpp_parts_remain: bool,
1767 impl<'a> PaymentFailedConditions<'a> {
1768 pub fn new() -> Self {
1770 expected_htlc_error_data: None,
1771 expected_blamed_scid: None,
1772 expected_blamed_chan_closed: None,
1773 expected_mpp_parts_remain: false,
1776 pub fn mpp_parts_remain(mut self) -> Self {
1777 self.expected_mpp_parts_remain = true;
1780 pub fn blamed_scid(mut self, scid: u64) -> Self {
1781 self.expected_blamed_scid = Some(scid);
1784 pub fn blamed_chan_closed(mut self, closed: bool) -> Self {
1785 self.expected_blamed_chan_closed = Some(closed);
1788 pub fn expected_htlc_error_data(mut self, code: u16, data: &'a [u8]) -> Self {
1789 self.expected_htlc_error_data = Some((code, data));
1795 macro_rules! expect_payment_failed_with_update {
1796 ($node: expr, $expected_payment_hash: expr, $payment_failed_permanently: expr, $scid: expr, $chan_closed: expr) => {
1797 $crate::ln::functional_test_utils::expect_payment_failed_conditions(
1798 &$node, $expected_payment_hash, $payment_failed_permanently,
1799 $crate::ln::functional_test_utils::PaymentFailedConditions::new()
1800 .blamed_scid($scid).blamed_chan_closed($chan_closed));
1805 macro_rules! expect_payment_failed {
1806 ($node: expr, $expected_payment_hash: expr, $payment_failed_permanently: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
1807 #[allow(unused_mut)]
1808 let mut conditions = $crate::ln::functional_test_utils::PaymentFailedConditions::new();
1810 conditions = conditions.expected_htlc_error_data($expected_error_code, &$expected_error_data);
1812 $crate::ln::functional_test_utils::expect_payment_failed_conditions(&$node, $expected_payment_hash, $payment_failed_permanently, conditions);
1816 pub fn expect_payment_failed_conditions_event<'a, 'b, 'c, 'd, 'e>(
1817 payment_failed_events: Vec<Event>, expected_payment_hash: PaymentHash,
1818 expected_payment_failed_permanently: bool, conditions: PaymentFailedConditions<'e>
1820 if conditions.expected_mpp_parts_remain { assert_eq!(payment_failed_events.len(), 1); } else { assert_eq!(payment_failed_events.len(), 2); }
1821 let expected_payment_id = match &payment_failed_events[0] {
1822 Event::PaymentPathFailed { payment_hash, payment_failed_permanently, path, retry, payment_id, failure, short_channel_id,
1826 error_data, .. } => {
1827 assert_eq!(*payment_hash, expected_payment_hash, "unexpected payment_hash");
1828 assert_eq!(*payment_failed_permanently, expected_payment_failed_permanently, "unexpected payment_failed_permanently value");
1829 assert!(retry.is_some(), "expected retry.is_some()");
1830 assert_eq!(retry.as_ref().unwrap().final_value_msat, path.last().unwrap().fee_msat, "Retry amount should match last hop in path");
1831 assert_eq!(retry.as_ref().unwrap().payment_params.payee_pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
1832 if let Some(scid) = short_channel_id {
1833 assert!(retry.as_ref().unwrap().payment_params.previously_failed_channels.contains(&scid));
1838 assert!(error_code.is_some(), "expected error_code.is_some() = true");
1839 assert!(error_data.is_some(), "expected error_data.is_some() = true");
1840 if let Some((code, data)) = conditions.expected_htlc_error_data {
1841 assert_eq!(error_code.unwrap(), code, "unexpected error code");
1842 assert_eq!(&error_data.as_ref().unwrap()[..], data, "unexpected error data");
1846 if let Some(chan_closed) = conditions.expected_blamed_chan_closed {
1847 if let PathFailure::OnPath { network_update: Some(upd) } = failure {
1849 NetworkUpdate::ChannelUpdateMessage { ref msg } if !chan_closed => {
1850 if let Some(scid) = conditions.expected_blamed_scid {
1851 assert_eq!(msg.contents.short_channel_id, scid);
1853 const CHAN_DISABLED_FLAG: u8 = 2;
1854 assert_eq!(msg.contents.flags & CHAN_DISABLED_FLAG, 0);
1856 NetworkUpdate::ChannelFailure { short_channel_id, is_permanent } if chan_closed => {
1857 if let Some(scid) = conditions.expected_blamed_scid {
1858 assert_eq!(*short_channel_id, scid);
1860 assert!(is_permanent);
1862 _ => panic!("Unexpected update type"),
1864 } else { panic!("Expected network update"); }
1869 _ => panic!("Unexpected event"),
1871 if !conditions.expected_mpp_parts_remain {
1872 match &payment_failed_events[1] {
1873 Event::PaymentFailed { ref payment_hash, ref payment_id } => {
1874 assert_eq!(*payment_hash, expected_payment_hash, "unexpected second payment_hash");
1875 assert_eq!(*payment_id, expected_payment_id);
1877 _ => panic!("Unexpected second event"),
1882 pub fn expect_payment_failed_conditions<'a, 'b, 'c, 'd, 'e>(
1883 node: &'a Node<'b, 'c, 'd>, expected_payment_hash: PaymentHash, expected_payment_failed_permanently: bool,
1884 conditions: PaymentFailedConditions<'e>
1886 let events = node.node.get_and_clear_pending_events();
1887 expect_payment_failed_conditions_event(events, expected_payment_hash, expected_payment_failed_permanently, conditions);
1890 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 {
1891 let payment_id = PaymentId(origin_node.keys_manager.backing.get_secure_random_bytes());
1892 origin_node.node.send_payment(&route, our_payment_hash, &Some(our_payment_secret), payment_id).unwrap();
1893 check_added_monitors!(origin_node, expected_paths.len());
1894 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
1898 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>) {
1899 let mut payment_event = SendEvent::from_event(ev);
1900 let mut prev_node = origin_node;
1902 for (idx, &node) in expected_path.iter().enumerate() {
1903 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
1905 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
1906 check_added_monitors!(node, 0);
1907 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
1909 expect_pending_htlcs_forwardable!(node);
1911 if idx == expected_path.len() - 1 && clear_recipient_events {
1912 let events_2 = node.node.get_and_clear_pending_events();
1913 if payment_claimable_expected {
1914 assert_eq!(events_2.len(), 1);
1916 Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, ref via_channel_id, ref via_user_channel_id } => {
1917 assert_eq!(our_payment_hash, *payment_hash);
1918 assert_eq!(node.node.get_our_node_id(), receiver_node_id.unwrap());
1920 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1921 assert_eq!(expected_preimage, *payment_preimage);
1922 assert_eq!(our_payment_secret.unwrap(), *payment_secret);
1924 PaymentPurpose::SpontaneousPayment(payment_preimage) => {
1925 assert_eq!(expected_preimage.unwrap(), *payment_preimage);
1926 assert!(our_payment_secret.is_none());
1929 assert_eq!(amount_msat, recv_value);
1930 assert!(node.node.list_channels().iter().any(|details| details.channel_id == via_channel_id.unwrap()));
1931 assert!(node.node.list_channels().iter().any(|details| details.user_channel_id == via_user_channel_id.unwrap()));
1933 _ => panic!("Unexpected event"),
1936 assert!(events_2.is_empty());
1938 } else if idx != expected_path.len() - 1 {
1939 let mut events_2 = node.node.get_and_clear_pending_msg_events();
1940 assert_eq!(events_2.len(), 1);
1941 check_added_monitors!(node, 1);
1942 payment_event = SendEvent::from_event(events_2.remove(0));
1943 assert_eq!(payment_event.msgs.len(), 1);
1950 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>) {
1951 do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_claimable_expected, true, expected_preimage);
1954 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) {
1955 let mut events = origin_node.node.get_and_clear_pending_msg_events();
1956 assert_eq!(events.len(), expected_route.len());
1957 for (path_idx, expected_path) in expected_route.iter().enumerate() {
1958 let ev = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &mut events);
1959 // Once we've gotten through all the HTLCs, the last one should result in a
1960 // PaymentClaimable (but each previous one should not!), .
1961 let expect_payment = path_idx == expected_route.len() - 1;
1962 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), Some(our_payment_secret), ev, expect_payment, None);
1966 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) {
1967 let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(expected_route.last().unwrap());
1968 let payment_id = send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, our_payment_secret);
1969 (our_payment_preimage, our_payment_hash, our_payment_secret, payment_id)
1972 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 {
1973 for path in expected_paths.iter() {
1974 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
1976 expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
1978 let claim_event = expected_paths[0].last().unwrap().node.get_and_clear_pending_events();
1979 assert_eq!(claim_event.len(), 1);
1980 match claim_event[0] {
1981 Event::PaymentClaimed { purpose: PaymentPurpose::SpontaneousPayment(preimage), .. }|
1982 Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { payment_preimage: Some(preimage), ..}, .. } =>
1983 assert_eq!(preimage, our_payment_preimage),
1984 Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { .. }, payment_hash, .. } =>
1985 assert_eq!(&payment_hash.0, &Sha256::hash(&our_payment_preimage.0)[..]),
1989 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
1991 let mut expected_total_fee_msat = 0;
1993 macro_rules! msgs_from_ev {
1996 &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 } } => {
1997 assert!(update_add_htlcs.is_empty());
1998 assert_eq!(update_fulfill_htlcs.len(), 1);
1999 assert!(update_fail_htlcs.is_empty());
2000 assert!(update_fail_malformed_htlcs.is_empty());
2001 assert!(update_fee.is_none());
2002 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
2004 _ => panic!("Unexpected event"),
2008 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
2009 let mut events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
2010 assert_eq!(events.len(), expected_paths.len());
2012 if events.len() == 1 {
2013 per_path_msgs.push(msgs_from_ev!(&events[0]));
2015 for expected_path in expected_paths.iter() {
2016 // For MPP payments, we always want the message to the first node in the path.
2017 let ev = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &mut events);
2018 per_path_msgs.push(msgs_from_ev!(&ev));
2022 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
2023 let mut next_msgs = Some(path_msgs);
2024 let mut expected_next_node = next_hop;
2026 macro_rules! last_update_fulfill_dance {
2027 ($node: expr, $prev_node: expr) => {
2029 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2030 check_added_monitors!($node, 0);
2031 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
2032 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
2036 macro_rules! mid_update_fulfill_dance {
2037 ($node: expr, $prev_node: expr, $next_node: expr, $new_msgs: expr) => {
2039 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2041 let per_peer_state = $node.node.per_peer_state.read().unwrap();
2042 let peer_state = per_peer_state.get(&$prev_node.node.get_our_node_id())
2043 .unwrap().lock().unwrap();
2044 let channel = peer_state.channel_by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap();
2045 if let Some(prev_config) = channel.prev_config() {
2046 prev_config.forwarding_fee_base_msat
2048 channel.config().forwarding_fee_base_msat
2051 expect_payment_forwarded!($node, $next_node, $prev_node, Some(fee as u64), false, false);
2052 expected_total_fee_msat += fee as u64;
2053 check_added_monitors!($node, 1);
2054 let new_next_msgs = if $new_msgs {
2055 let events = $node.node.get_and_clear_pending_msg_events();
2056 assert_eq!(events.len(), 1);
2057 let (res, nexthop) = msgs_from_ev!(&events[0]);
2058 expected_next_node = nexthop;
2061 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
2064 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
2065 next_msgs = new_next_msgs;
2070 let mut prev_node = expected_route.last().unwrap();
2071 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
2072 assert_eq!(expected_next_node, node.node.get_our_node_id());
2073 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
2074 if next_msgs.is_some() {
2075 // Since we are traversing in reverse, next_node is actually the previous node
2076 let next_node: &Node;
2077 if idx == expected_route.len() - 1 {
2078 next_node = origin_node;
2080 next_node = expected_route[expected_route.len() - 1 - idx - 1];
2082 mid_update_fulfill_dance!(node, prev_node, next_node, update_next_msgs);
2084 assert!(!update_next_msgs);
2085 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
2087 if !skip_last && idx == expected_route.len() - 1 {
2088 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
2095 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
2099 // Ensure that claim_funds is idempotent.
2100 expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
2101 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
2102 check_added_monitors!(expected_paths[0].last().unwrap(), 0);
2104 expected_total_fee_msat
2106 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) {
2107 let expected_total_fee_msat = do_claim_payment_along_route(origin_node, expected_paths, skip_last, our_payment_preimage);
2109 expect_payment_sent!(origin_node, our_payment_preimage, Some(expected_total_fee_msat));
2113 pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage) {
2114 claim_payment_along_route(origin_node, &[expected_route], false, our_payment_preimage);
2117 pub const TEST_FINAL_CLTV: u32 = 70;
2119 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) {
2120 let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
2121 .with_features(expected_route.last().unwrap().node.invoice_features());
2122 let route = get_route!(origin_node, payment_params, recv_value, TEST_FINAL_CLTV).unwrap();
2123 assert_eq!(route.paths.len(), 1);
2124 assert_eq!(route.paths[0].len(), expected_route.len());
2125 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
2126 assert_eq!(hop.pubkey, node.node.get_our_node_id());
2129 let res = send_along_route(origin_node, route, expected_route, recv_value);
2130 (res.0, res.1, res.2)
2133 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
2134 let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
2135 .with_features(expected_route.last().unwrap().node.invoice_features());
2136 let network_graph = origin_node.network_graph.read_only();
2137 let scorer = test_utils::TestScorer::new();
2138 let seed = [0u8; 32];
2139 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
2140 let random_seed_bytes = keys_manager.get_secure_random_bytes();
2141 let route = get_route(
2142 &origin_node.node.get_our_node_id(), &payment_params, &network_graph,
2143 None, recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer, &random_seed_bytes).unwrap();
2144 assert_eq!(route.paths.len(), 1);
2145 assert_eq!(route.paths[0].len(), expected_route.len());
2146 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
2147 assert_eq!(hop.pubkey, node.node.get_our_node_id());
2150 let (_, our_payment_hash, our_payment_preimage) = get_payment_preimage_hash!(expected_route.last().unwrap());
2151 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 },
2152 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
2155 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
2156 let res = route_payment(&origin, expected_route, recv_value);
2157 claim_payment(&origin, expected_route, res.0);
2161 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) {
2162 for path in expected_paths.iter() {
2163 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
2165 expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
2166 let expected_destinations: Vec<HTLCDestination> = repeat(HTLCDestination::FailedPayment { payment_hash: our_payment_hash }).take(expected_paths.len()).collect();
2167 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(expected_paths[0].last().unwrap(), expected_destinations);
2169 pass_failed_payment_back(origin_node, expected_paths, skip_last, our_payment_hash);
2172 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) {
2173 let mut expected_paths: Vec<_> = expected_paths_slice.iter().collect();
2174 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
2176 let mut per_path_msgs: Vec<((msgs::UpdateFailHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
2177 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
2178 assert_eq!(events.len(), expected_paths.len());
2179 for ev in events.iter() {
2180 let (update_fail, commitment_signed, node_id) = match ev {
2181 &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 } } => {
2182 assert!(update_add_htlcs.is_empty());
2183 assert!(update_fulfill_htlcs.is_empty());
2184 assert_eq!(update_fail_htlcs.len(), 1);
2185 assert!(update_fail_malformed_htlcs.is_empty());
2186 assert!(update_fee.is_none());
2187 (update_fail_htlcs[0].clone(), commitment_signed.clone(), node_id.clone())
2189 _ => panic!("Unexpected event"),
2191 per_path_msgs.push(((update_fail, commitment_signed), node_id));
2193 per_path_msgs.sort_unstable_by(|(_, node_id_a), (_, node_id_b)| node_id_a.cmp(node_id_b));
2194 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()));
2196 for (i, (expected_route, (path_msgs, next_hop))) in expected_paths.iter().zip(per_path_msgs.drain(..)).enumerate() {
2197 let mut next_msgs = Some(path_msgs);
2198 let mut expected_next_node = next_hop;
2199 let mut prev_node = expected_route.last().unwrap();
2201 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
2202 assert_eq!(expected_next_node, node.node.get_our_node_id());
2203 let update_next_node = !skip_last || idx != expected_route.len() - 1;
2204 if next_msgs.is_some() {
2205 node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2206 commitment_signed_dance!(node, prev_node, next_msgs.as_ref().unwrap().1, update_next_node);
2207 if !update_next_node {
2208 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 }]);
2211 let events = node.node.get_and_clear_pending_msg_events();
2212 if update_next_node {
2213 assert_eq!(events.len(), 1);
2215 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 } } => {
2216 assert!(update_add_htlcs.is_empty());
2217 assert!(update_fulfill_htlcs.is_empty());
2218 assert_eq!(update_fail_htlcs.len(), 1);
2219 assert!(update_fail_malformed_htlcs.is_empty());
2220 assert!(update_fee.is_none());
2221 expected_next_node = node_id.clone();
2222 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
2224 _ => panic!("Unexpected event"),
2227 assert!(events.is_empty());
2229 if !skip_last && idx == expected_route.len() - 1 {
2230 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
2237 let prev_node = expected_route.first().unwrap();
2238 origin_node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2239 check_added_monitors!(origin_node, 0);
2240 assert!(origin_node.node.get_and_clear_pending_msg_events().is_empty());
2241 commitment_signed_dance!(origin_node, prev_node, next_msgs.as_ref().unwrap().1, false);
2242 let events = origin_node.node.get_and_clear_pending_events();
2243 if i == expected_paths.len() - 1 { assert_eq!(events.len(), 2); } else { assert_eq!(events.len(), 1); }
2245 let expected_payment_id = match events[0] {
2246 Event::PaymentPathFailed { payment_hash, payment_failed_permanently, ref path, ref payment_id, .. } => {
2247 assert_eq!(payment_hash, our_payment_hash);
2248 assert!(payment_failed_permanently);
2249 for (idx, hop) in expected_route.iter().enumerate() {
2250 assert_eq!(hop.node.get_our_node_id(), path[idx].pubkey);
2254 _ => panic!("Unexpected event"),
2256 if i == expected_paths.len() - 1 {
2258 Event::PaymentFailed { ref payment_hash, ref payment_id } => {
2259 assert_eq!(*payment_hash, our_payment_hash, "unexpected second payment_hash");
2260 assert_eq!(*payment_id, expected_payment_id);
2262 _ => panic!("Unexpected second event"),
2268 // Ensure that fail_htlc_backwards is idempotent.
2269 expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
2270 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_events().is_empty());
2271 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
2272 check_added_monitors!(expected_paths[0].last().unwrap(), 0);
2275 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
2276 fail_payment_along_route(origin_node, &[&expected_path[..]], false, our_payment_hash);
2279 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
2280 let mut chan_mon_cfgs = Vec::new();
2281 for i in 0..node_count {
2282 let tx_broadcaster = test_utils::TestBroadcaster {
2283 txn_broadcasted: Mutex::new(Vec::new()),
2284 blocks: Arc::new(Mutex::new(vec![(genesis_block(Network::Testnet), 0)])),
2286 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
2287 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
2288 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
2289 let persister = test_utils::TestPersister::new();
2290 let seed = [i as u8; 32];
2291 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
2292 let scorer = Mutex::new(test_utils::TestScorer::new());
2294 chan_mon_cfgs.push(TestChanMonCfg { tx_broadcaster, fee_estimator, chain_source, logger, persister, keys_manager, scorer });
2300 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
2301 let mut nodes = Vec::new();
2303 for i in 0..node_count {
2304 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);
2305 let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &chanmon_cfgs[i].logger));
2306 let seed = [i as u8; 32];
2307 nodes.push(NodeCfg {
2308 chain_source: &chanmon_cfgs[i].chain_source,
2309 logger: &chanmon_cfgs[i].logger,
2310 tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster,
2311 fee_estimator: &chanmon_cfgs[i].fee_estimator,
2312 router: test_utils::TestRouter::new(network_graph.clone(), &chanmon_cfgs[i].scorer),
2314 keys_manager: &chanmon_cfgs[i].keys_manager,
2317 override_init_features: Rc::new(RefCell::new(None)),
2324 pub fn test_default_channel_config() -> UserConfig {
2325 let mut default_config = UserConfig::default();
2326 // Set cltv_expiry_delta slightly lower to keep the final CLTV values inside one byte in our
2327 // tests so that our script-length checks don't fail (see ACCEPTED_HTLC_SCRIPT_WEIGHT).
2328 default_config.channel_config.cltv_expiry_delta = MIN_CLTV_EXPIRY_DELTA;
2329 default_config.channel_handshake_config.announced_channel = true;
2330 default_config.channel_handshake_limits.force_announced_channel_preference = false;
2331 // When most of our tests were written, the default HTLC minimum was fixed at 1000.
2332 // It now defaults to 1, so we simply set it to the expected value here.
2333 default_config.channel_handshake_config.our_htlc_minimum_msat = 1000;
2334 // When most of our tests were written, we didn't have the notion of a `max_dust_htlc_exposure_msat`,
2335 // It now defaults to 5_000_000 msat; to avoid interfering with tests we bump it to 50_000_000 msat.
2336 default_config.channel_config.max_dust_htlc_exposure_msat = 50_000_000;
2340 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, &'a test_utils::TestKeysInterface, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'a test_utils::TestRouter<'b>, &'b test_utils::TestLogger>> {
2341 let mut chanmgrs = Vec::new();
2342 for i in 0..node_count {
2343 let network = Network::Testnet;
2344 let params = ChainParameters {
2346 best_block: BestBlock::from_network(network),
2348 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,
2349 cfgs[i].keys_manager, cfgs[i].keys_manager, if node_config[i].is_some() { node_config[i].clone().unwrap() } else { test_default_channel_config() }, params);
2350 chanmgrs.push(node);
2356 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, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestRouter, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
2357 let mut nodes = Vec::new();
2358 let chan_count = Rc::new(RefCell::new(0));
2359 let payment_count = Rc::new(RefCell::new(0));
2360 let connect_style = Rc::new(RefCell::new(ConnectStyle::random_style()));
2362 for i in 0..node_count {
2363 let gossip_sync = P2PGossipSync::new(cfgs[i].network_graph.as_ref(), None, cfgs[i].logger);
2365 chain_source: cfgs[i].chain_source, tx_broadcaster: cfgs[i].tx_broadcaster,
2366 fee_estimator: cfgs[i].fee_estimator, router: &cfgs[i].router,
2367 chain_monitor: &cfgs[i].chain_monitor, keys_manager: &cfgs[i].keys_manager,
2368 node: &chan_mgrs[i], network_graph: cfgs[i].network_graph.as_ref(), gossip_sync,
2369 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
2370 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
2371 blocks: Arc::clone(&cfgs[i].tx_broadcaster.blocks),
2372 connect_style: Rc::clone(&connect_style),
2373 override_init_features: Rc::clone(&cfgs[i].override_init_features),
2377 for i in 0..node_count {
2378 for j in (i+1)..node_count {
2379 nodes[i].node.peer_connected(&nodes[j].node.get_our_node_id(), &msgs::Init { features: nodes[j].override_init_features.borrow().clone().unwrap_or_else(|| nodes[j].node.init_features()), remote_network_address: None }, true).unwrap();
2380 nodes[j].node.peer_connected(&nodes[i].node.get_our_node_id(), &msgs::Init { features: nodes[i].override_init_features.borrow().clone().unwrap_or_else(|| nodes[i].node.init_features()), remote_network_address: None }, false).unwrap();
2387 // Note that the following only works for CLTV values up to 128
2388 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 137; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
2390 #[derive(PartialEq)]
2391 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
2392 /// Tests that the given node has broadcast transactions for the given Channel
2394 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
2395 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
2396 /// broadcast and the revoked outputs were claimed.
2398 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
2399 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
2401 /// All broadcast transactions must be accounted for in one of the above three types of we'll
2403 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> {
2404 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2405 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
2407 let mut res = Vec::with_capacity(2);
2408 node_txn.retain(|tx| {
2409 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
2410 check_spends!(tx, chan.3);
2411 if commitment_tx.is_none() {
2412 res.push(tx.clone());
2417 if let Some(explicit_tx) = commitment_tx {
2418 res.push(explicit_tx.clone());
2421 assert_eq!(res.len(), 1);
2423 if has_htlc_tx != HTLCType::NONE {
2424 node_txn.retain(|tx| {
2425 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
2426 check_spends!(tx, res[0]);
2427 if has_htlc_tx == HTLCType::TIMEOUT {
2428 assert!(tx.lock_time.0 != 0);
2430 assert!(tx.lock_time.0 == 0);
2432 res.push(tx.clone());
2436 assert!(res.len() == 2 || res.len() == 3);
2438 assert_eq!(res[1], res[2]);
2442 assert!(node_txn.is_empty());
2446 /// Tests that the given node has broadcast a claim transaction against the provided revoked
2447 /// HTLC transaction.
2448 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
2449 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2450 // We may issue multiple claiming transaction on revoked outputs due to block rescan
2451 // for revoked htlc outputs
2452 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
2453 node_txn.retain(|tx| {
2454 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
2455 check_spends!(tx, revoked_tx);
2459 node_txn.retain(|tx| {
2460 check_spends!(tx, commitment_revoked_tx);
2463 assert!(node_txn.is_empty());
2466 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
2467 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2469 assert!(node_txn.len() >= 1);
2470 assert_eq!(node_txn[0].input.len(), 1);
2471 let mut found_prev = false;
2473 for tx in prev_txn {
2474 if node_txn[0].input[0].previous_output.txid == tx.txid() {
2475 check_spends!(node_txn[0], tx);
2476 let mut iter = node_txn[0].input[0].witness.iter();
2477 iter.next().expect("expected 3 witness items");
2478 iter.next().expect("expected 3 witness items");
2479 assert!(iter.next().expect("expected 3 witness items").len() > 106); // must spend an htlc output
2480 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
2486 assert!(found_prev);
2488 let mut res = Vec::new();
2489 mem::swap(&mut *node_txn, &mut res);
2493 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) {
2494 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
2495 assert_eq!(events_1.len(), 2);
2496 let as_update = match events_1[0] {
2497 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
2500 _ => panic!("Unexpected event"),
2503 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
2504 assert_eq!(node_id, nodes[b].node.get_our_node_id());
2505 assert_eq!(msg.data, expected_error);
2506 if needs_err_handle {
2507 nodes[b].node.handle_error(&nodes[a].node.get_our_node_id(), msg);
2510 _ => panic!("Unexpected event"),
2513 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
2514 assert_eq!(events_2.len(), if needs_err_handle { 1 } else { 2 });
2515 let bs_update = match events_2[0] {
2516 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
2519 _ => panic!("Unexpected event"),
2521 if !needs_err_handle {
2523 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
2524 assert_eq!(node_id, nodes[a].node.get_our_node_id());
2525 assert_eq!(msg.data, expected_error);
2527 _ => panic!("Unexpected event"),
2532 node.gossip_sync.handle_channel_update(&as_update).unwrap();
2533 node.gossip_sync.handle_channel_update(&bs_update).unwrap();
2537 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
2538 handle_announce_close_broadcast_events(nodes, a, b, false, "Channel closed because commitment or closing transaction was confirmed on chain.");
2542 macro_rules! get_channel_value_stat {
2543 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {{
2544 let peer_state_lock = $node.node.per_peer_state.read().unwrap();
2545 let chan_lock = peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
2546 let chan = chan_lock.channel_by_id.get(&$channel_id).unwrap();
2547 chan.get_value_stat()
2551 macro_rules! get_chan_reestablish_msgs {
2552 ($src_node: expr, $dst_node: expr) => {
2554 let mut announcements = $crate::prelude::HashSet::new();
2555 let mut res = Vec::with_capacity(1);
2556 for msg in $src_node.node.get_and_clear_pending_msg_events() {
2557 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
2558 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2559 res.push(msg.clone());
2560 } else if let MessageSendEvent::SendChannelAnnouncement { ref node_id, ref msg, .. } = msg {
2561 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2562 announcements.insert(msg.contents.short_channel_id);
2564 panic!("Unexpected event")
2567 for chan in $src_node.node.list_channels() {
2568 if chan.is_public && chan.counterparty.node_id != $dst_node.node.get_our_node_id() {
2569 if let Some(scid) = chan.short_channel_id {
2570 assert!(announcements.remove(&scid));
2574 assert!(announcements.is_empty());
2580 macro_rules! handle_chan_reestablish_msgs {
2581 ($src_node: expr, $dst_node: expr) => {
2583 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
2585 let channel_ready = if let Some(&MessageSendEvent::SendChannelReady { ref node_id, ref msg }) = msg_events.get(0) {
2587 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2593 if let Some(&MessageSendEvent::SendAnnouncementSignatures { ref node_id, msg: _ }) = msg_events.get(idx) {
2595 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2598 let mut had_channel_update = false; // ChannelUpdate may be now or later, but not both
2599 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, ref msg }) = msg_events.get(idx) {
2600 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2602 assert_eq!(msg.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
2603 had_channel_update = true;
2606 let mut revoke_and_ack = None;
2607 let mut commitment_update = None;
2608 let order = if let Some(ev) = msg_events.get(idx) {
2610 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
2611 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2612 revoke_and_ack = Some(msg.clone());
2614 RAACommitmentOrder::RevokeAndACKFirst
2616 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
2617 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2618 commitment_update = Some(updates.clone());
2620 RAACommitmentOrder::CommitmentFirst
2622 _ => RAACommitmentOrder::CommitmentFirst,
2625 RAACommitmentOrder::CommitmentFirst
2628 if let Some(ev) = msg_events.get(idx) {
2630 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
2631 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2632 assert!(revoke_and_ack.is_none());
2633 revoke_and_ack = Some(msg.clone());
2636 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
2637 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2638 assert!(commitment_update.is_none());
2639 commitment_update = Some(updates.clone());
2646 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, ref msg }) = msg_events.get(idx) {
2647 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2649 assert_eq!(msg.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
2650 assert!(!had_channel_update);
2653 assert_eq!(msg_events.len(), idx);
2655 (channel_ready, revoke_and_ack, commitment_update, order)
2660 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
2661 /// for claims/fails they are separated out.
2662 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)) {
2663 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: node_b.node.init_features(), remote_network_address: None }, true).unwrap();
2664 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
2665 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: node_a.node.init_features(), remote_network_address: None }, false).unwrap();
2666 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
2668 if send_channel_ready.0 {
2669 // If a expects a channel_ready, it better not think it has received a revoke_and_ack
2671 for reestablish in reestablish_1.iter() {
2672 assert_eq!(reestablish.next_remote_commitment_number, 0);
2675 if send_channel_ready.1 {
2676 // If b expects a channel_ready, it better not think it has received a revoke_and_ack
2678 for reestablish in reestablish_2.iter() {
2679 assert_eq!(reestablish.next_remote_commitment_number, 0);
2682 if send_channel_ready.0 || send_channel_ready.1 {
2683 // If we expect any channel_ready's, both sides better have set
2684 // next_holder_commitment_number to 1
2685 for reestablish in reestablish_1.iter() {
2686 assert_eq!(reestablish.next_local_commitment_number, 1);
2688 for reestablish in reestablish_2.iter() {
2689 assert_eq!(reestablish.next_local_commitment_number, 1);
2693 let mut resp_1 = Vec::new();
2694 for msg in reestablish_1 {
2695 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
2696 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
2698 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
2699 check_added_monitors!(node_b, 1);
2701 check_added_monitors!(node_b, 0);
2704 let mut resp_2 = Vec::new();
2705 for msg in reestablish_2 {
2706 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
2707 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
2709 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
2710 check_added_monitors!(node_a, 1);
2712 check_added_monitors!(node_a, 0);
2715 // We don't yet support both needing updates, as that would require a different commitment dance:
2716 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_htlc_fails.0 == 0 &&
2717 pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
2718 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_htlc_fails.1 == 0 &&
2719 pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
2721 for chan_msgs in resp_1.drain(..) {
2722 if send_channel_ready.0 {
2723 node_a.node.handle_channel_ready(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
2724 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
2725 if !announcement_event.is_empty() {
2726 assert_eq!(announcement_event.len(), 1);
2727 if let MessageSendEvent::SendChannelUpdate { .. } = announcement_event[0] {
2728 //TODO: Test announcement_sigs re-sending
2729 } else { panic!("Unexpected event! {:?}", announcement_event[0]); }
2732 assert!(chan_msgs.0.is_none());
2735 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
2736 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
2737 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
2738 check_added_monitors!(node_a, 1);
2740 assert!(chan_msgs.1.is_none());
2742 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 {
2743 let commitment_update = chan_msgs.2.unwrap();
2744 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
2745 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
2747 assert!(commitment_update.update_add_htlcs.is_empty());
2749 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
2750 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.0 + pending_cell_htlc_fails.0);
2751 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
2752 for update_add in commitment_update.update_add_htlcs {
2753 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
2755 for update_fulfill in commitment_update.update_fulfill_htlcs {
2756 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
2758 for update_fail in commitment_update.update_fail_htlcs {
2759 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
2762 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
2763 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
2765 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
2766 check_added_monitors!(node_a, 1);
2767 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
2768 // No commitment_signed so get_event_msg's assert(len == 1) passes
2769 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
2770 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
2771 check_added_monitors!(node_b, 1);
2774 assert!(chan_msgs.2.is_none());
2778 for chan_msgs in resp_2.drain(..) {
2779 if send_channel_ready.1 {
2780 node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
2781 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
2782 if !announcement_event.is_empty() {
2783 assert_eq!(announcement_event.len(), 1);
2784 match announcement_event[0] {
2785 MessageSendEvent::SendChannelUpdate { .. } => {},
2786 MessageSendEvent::SendAnnouncementSignatures { .. } => {},
2787 _ => panic!("Unexpected event {:?}!", announcement_event[0]),
2791 assert!(chan_msgs.0.is_none());
2794 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
2795 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
2796 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
2797 check_added_monitors!(node_b, 1);
2799 assert!(chan_msgs.1.is_none());
2801 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 {
2802 let commitment_update = chan_msgs.2.unwrap();
2803 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
2804 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
2806 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.1 + pending_cell_htlc_claims.1);
2807 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.1 + pending_cell_htlc_fails.1);
2808 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
2809 for update_add in commitment_update.update_add_htlcs {
2810 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
2812 for update_fulfill in commitment_update.update_fulfill_htlcs {
2813 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
2815 for update_fail in commitment_update.update_fail_htlcs {
2816 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
2819 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
2820 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
2822 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
2823 check_added_monitors!(node_b, 1);
2824 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
2825 // No commitment_signed so get_event_msg's assert(len == 1) passes
2826 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
2827 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
2828 check_added_monitors!(node_a, 1);
2831 assert!(chan_msgs.2.is_none());