_ Git - rust-lightning/blob - lightning/src/util/test_utils.rs

   1 // This file is Copyright its original authors, visible in version control
   2 // history.
   3 //
   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
   8 // licenses.
   9
  10 use crate::blinded_path::BlindedPath;
  11 use crate::blinded_path::payment::ReceiveTlvs;
  12 use crate::chain;
  13 use crate::chain::WatchedOutput;
  14 use crate::chain::chaininterface;
  15 use crate::chain::chaininterface::ConfirmationTarget;
  16 use crate::chain::chaininterface::FEERATE_FLOOR_SATS_PER_KW;
  17 use crate::chain::chainmonitor;
  18 use crate::chain::chainmonitor::{MonitorUpdateId, UpdateOrigin};
  19 use crate::chain::channelmonitor;
  20 use crate::chain::channelmonitor::MonitorEvent;
  21 use crate::chain::transaction::OutPoint;
  22 use crate::routing::router::{CandidateRouteHop, FirstHopCandidate, PublicHopCandidate, PrivateHopCandidate};
  23 use crate::sign;
  24 use crate::events;
  25 use crate::events::bump_transaction::{WalletSource, Utxo};
  26 use crate::ln::ChannelId;
  27 use crate::ln::channelmanager::{ChannelDetails, self};
  28 use crate::ln::chan_utils::CommitmentTransaction;
  29 use crate::ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
  30 use crate::ln::{msgs, wire};
  31 use crate::ln::msgs::LightningError;
  32 use crate::ln::script::ShutdownScript;
  33 use crate::offers::invoice::{BlindedPayInfo, UnsignedBolt12Invoice};
  34 use crate::offers::invoice_request::UnsignedInvoiceRequest;
  35 use crate::onion_message::messenger::{Destination, MessageRouter, OnionMessagePath};
  36 use crate::routing::gossip::{EffectiveCapacity, NetworkGraph, NodeId, RoutingFees};
  37 use crate::routing::utxo::{UtxoLookup, UtxoLookupError, UtxoResult};
  38 use crate::routing::router::{find_route, InFlightHtlcs, Path, Route, RouteParameters, RouteHintHop, Router, ScorerAccountingForInFlightHtlcs};
  39 use crate::routing::scoring::{ChannelUsage, ScoreUpdate, ScoreLookUp};
  40 use crate::sync::RwLock;
  41 use crate::util::config::UserConfig;
  42 use crate::util::test_channel_signer::{TestChannelSigner, EnforcementState};
  43 use crate::util::logger::{Logger, Level, Record};
  44 use crate::util::ser::{Readable, ReadableArgs, Writer, Writeable};
  45 use crate::util::persist::KVStore;
  46
  47 use bitcoin::blockdata::constants::ChainHash;
  48 use bitcoin::blockdata::constants::genesis_block;
  49 use bitcoin::blockdata::transaction::{Transaction, TxOut};
  50 use bitcoin::blockdata::script::{Builder, Script, ScriptBuf};
  51 use bitcoin::blockdata::opcodes;
  52 use bitcoin::blockdata::block::Block;
  53 use bitcoin::network::constants::Network;
  54 use bitcoin::hash_types::{BlockHash, Txid};
  55 use bitcoin::sighash::{SighashCache, EcdsaSighashType};
  56
  57 use bitcoin::secp256k1::{PublicKey, Scalar, Secp256k1, SecretKey, self};
  58 use bitcoin::secp256k1::ecdh::SharedSecret;
  59 use bitcoin::secp256k1::ecdsa::{RecoverableSignature, Signature};
  60 use bitcoin::secp256k1::schnorr;
  61
  62 #[cfg(any(test, feature = "_test_utils"))]
  63 use regex;
  64
  65 use crate::io;
  66 use crate::prelude::*;
  67 use core::cell::RefCell;
  68 use core::time::Duration;
  69 use crate::sync::{Mutex, Arc};
  70 use core::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
  71 use core::mem;
  72 use bitcoin::bech32::u5;
  73 use crate::sign::{InMemorySigner, Recipient, EntropySource, NodeSigner, SignerProvider};
  74
  75 #[cfg(feature = "std")]
  76 use std::time::{SystemTime, UNIX_EPOCH};
  77 use bitcoin::psbt::PartiallySignedTransaction;
  78 use bitcoin::Sequence;
  79
  80 pub fn pubkey(byte: u8) -> PublicKey {
  81         let secp_ctx = Secp256k1::new();
  82         PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
  83 }
  84
  85 pub fn privkey(byte: u8) -> SecretKey {
  86         SecretKey::from_slice(&[byte; 32]).unwrap()
  87 }
  88
  89 pub struct TestVecWriter(pub Vec<u8>);
  90 impl Writer for TestVecWriter {
  91         fn write_all(&mut self, buf: &[u8]) -> Result<(), io::Error> {
  92                 self.0.extend_from_slice(buf);
  93                 Ok(())
  94         }
  95 }
  96
  97 pub struct TestFeeEstimator {
  98         pub sat_per_kw: Mutex<u32>,
  99 }
 100 impl chaininterface::FeeEstimator for TestFeeEstimator {
 101         fn get_est_sat_per_1000_weight(&self, _confirmation_target: ConfirmationTarget) -> u32 {
 102                 *self.sat_per_kw.lock().unwrap()
 103         }
 104 }
 105
 106 pub struct TestRouter<'a> {
 107         pub network_graph: Arc<NetworkGraph<&'a TestLogger>>,
 108         pub next_routes: Mutex<VecDeque<(RouteParameters, Result<Route, LightningError>)>>,
 109         pub scorer: &'a RwLock<TestScorer>,
 110 }
 111
 112 impl<'a> TestRouter<'a> {
 113         pub fn new(network_graph: Arc<NetworkGraph<&'a TestLogger>>, scorer: &'a RwLock<TestScorer>) -> Self {
 114                 Self { network_graph, next_routes: Mutex::new(VecDeque::new()), scorer }
 115         }
 116
 117         pub fn expect_find_route(&self, query: RouteParameters, result: Result<Route, LightningError>) {
 118                 let mut expected_routes = self.next_routes.lock().unwrap();
 119                 expected_routes.push_back((query, result));
 120         }
 121 }
 122
 123 impl<'a> Router for TestRouter<'a> {
 124         fn find_route(
 125                 &self, payer: &PublicKey, params: &RouteParameters, first_hops: Option<&[&ChannelDetails]>,
 126                 inflight_htlcs: InFlightHtlcs
 127         ) -> Result<Route, msgs::LightningError> {
 128                 if let Some((find_route_query, find_route_res)) = self.next_routes.lock().unwrap().pop_front() {
 129                         assert_eq!(find_route_query, *params);
 130                         if let Ok(ref route) = find_route_res {
 131                                 assert_eq!(route.route_params, Some(find_route_query));
 132                                 let scorer = self.scorer.read().unwrap();
 133                                 let scorer = ScorerAccountingForInFlightHtlcs::new(scorer, &inflight_htlcs);
 134                                 for path in &route.paths {
 135                                         let mut aggregate_msat = 0u64;
 136                                         let mut prev_hop_node = payer;
 137                                         for (idx, hop) in path.hops.iter().rev().enumerate() {
 138                                                 aggregate_msat += hop.fee_msat;
 139                                                 let usage = ChannelUsage {
 140                                                         amount_msat: aggregate_msat,
 141                                                         inflight_htlc_msat: 0,
 142                                                         effective_capacity: EffectiveCapacity::Unknown,
 143                                                 };
 144
 145                                                 if idx == path.hops.len() - 1 {
 146                                                         if let Some(first_hops) = first_hops {
 147                                                                 if let Some(idx) = first_hops.iter().position(|h| h.get_outbound_payment_scid() == Some(hop.short_channel_id)) {
 148                                                                         let node_id = NodeId::from_pubkey(payer);
 149                                                                         let candidate = CandidateRouteHop::FirstHop(FirstHopCandidate {
 150                                                                                 details: first_hops[idx],
 151                                                                                 payer_node_id: &node_id,
 152                                                                         });
 153                                                                         scorer.channel_penalty_msat(&candidate, usage, &());
 154                                                                         continue;
 155                                                                 }
 156                                                         }
 157                                                 }
 158                                                 let network_graph = self.network_graph.read_only();
 159                                                 if let Some(channel) = network_graph.channel(hop.short_channel_id) {
 160                                                         let (directed, _) = channel.as_directed_to(&NodeId::from_pubkey(&hop.pubkey)).unwrap();
 161                                                         let candidate = CandidateRouteHop::PublicHop(PublicHopCandidate {
 162                                                                 info: directed,
 163                                                                 short_channel_id: hop.short_channel_id,
 164                                                         });
 165                                                         scorer.channel_penalty_msat(&candidate, usage, &());
 166                                                 } else {
 167                                                         let target_node_id = NodeId::from_pubkey(&hop.pubkey);
 168                                                         let route_hint = RouteHintHop {
 169                                                                 src_node_id: *prev_hop_node,
 170                                                                 short_channel_id: hop.short_channel_id,
 171                                                                 fees: RoutingFees { base_msat: 0, proportional_millionths: 0 },
 172                                                                 cltv_expiry_delta: 0,
 173                                                                 htlc_minimum_msat: None,
 174                                                                 htlc_maximum_msat: None,
 175                                                         };
 176                                                         let candidate = CandidateRouteHop::PrivateHop(PrivateHopCandidate {
 177                                                                 hint: &route_hint,
 178                                                                 target_node_id: &target_node_id,
 179                                                         });
 180                                                         scorer.channel_penalty_msat(&candidate, usage, &());
 181                                                 }
 182                                                 prev_hop_node = &hop.pubkey;
 183                                         }
 184                                 }
 185                         }
 186                         return find_route_res;
 187                 }
 188                 let logger = TestLogger::new();
 189                 find_route(
 190                         payer, params, &self.network_graph, first_hops, &logger,
 191                         &ScorerAccountingForInFlightHtlcs::new(self.scorer.read().unwrap(), &inflight_htlcs), &Default::default(),
 192                         &[42; 32]
 193                 )
 194         }
 195
 196         fn create_blinded_payment_paths<
 197                 ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification
 198         >(
 199                 &self, _recipient: PublicKey, _first_hops: Vec<ChannelDetails>, _tlvs: ReceiveTlvs,
 200                 _amount_msats: u64, _entropy_source: &ES, _secp_ctx: &Secp256k1<T>
 201         ) -> Result<Vec<(BlindedPayInfo, BlindedPath)>, ()> {
 202                 unreachable!()
 203         }
 204 }
 205
 206 impl<'a> MessageRouter for TestRouter<'a> {
 207         fn find_path(
 208                 &self, _sender: PublicKey, _peers: Vec<PublicKey>, _destination: Destination
 209         ) -> Result<OnionMessagePath, ()> {
 210                 unreachable!()
 211         }
 212
 213         fn create_blinded_paths<
 214                 ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification
 215         >(
 216                 &self, _recipient: PublicKey, _peers: Vec<PublicKey>, _entropy_source: &ES,
 217                 _secp_ctx: &Secp256k1<T>
 218         ) -> Result<Vec<BlindedPath>, ()> {
 219                 unreachable!()
 220         }
 221 }
 222
 223 impl<'a> Drop for TestRouter<'a> {
 224         fn drop(&mut self) {
 225                 #[cfg(feature = "std")] {
 226                         if std::thread::panicking() {
 227                                 return;
 228                         }
 229                 }
 230                 assert!(self.next_routes.lock().unwrap().is_empty());
 231         }
 232 }
 233
 234 pub struct OnlyReadsKeysInterface {}
 235
 236 impl EntropySource for OnlyReadsKeysInterface {
 237         fn get_secure_random_bytes(&self) -> [u8; 32] { [0; 32] }}
 238
 239 impl SignerProvider for OnlyReadsKeysInterface {
 240         type EcdsaSigner = TestChannelSigner;
 241         #[cfg(taproot)]
 242         type TaprootSigner = TestChannelSigner;
 243
 244         fn generate_channel_keys_id(&self, _inbound: bool, _channel_value_satoshis: u64, _user_channel_id: u128) -> [u8; 32] { unreachable!(); }
 245
 246         fn derive_channel_signer(&self, _channel_value_satoshis: u64, _channel_keys_id: [u8; 32]) -> Self::EcdsaSigner { unreachable!(); }
 247
 248         fn read_chan_signer(&self, mut reader: &[u8]) -> Result<Self::EcdsaSigner, msgs::DecodeError> {
 249                 let inner: InMemorySigner = ReadableArgs::read(&mut reader, self)?;
 250                 let state = Arc::new(Mutex::new(EnforcementState::new()));
 251
 252                 Ok(TestChannelSigner::new_with_revoked(
 253                         inner,
 254                         state,
 255                         false
 256                 ))
 257         }
 258
 259         fn get_destination_script(&self, _channel_keys_id: [u8; 32]) -> Result<ScriptBuf, ()> { Err(()) }
 260         fn get_shutdown_scriptpubkey(&self) -> Result<ShutdownScript, ()> { Err(()) }
 261 }
 262
 263 pub struct TestChainMonitor<'a> {
 264         pub added_monitors: Mutex<Vec<(OutPoint, channelmonitor::ChannelMonitor<TestChannelSigner>)>>,
 265         pub monitor_updates: Mutex<HashMap<ChannelId, Vec<channelmonitor::ChannelMonitorUpdate>>>,
 266         pub latest_monitor_update_id: Mutex<HashMap<ChannelId, (OutPoint, u64, MonitorUpdateId)>>,
 267         pub chain_monitor: chainmonitor::ChainMonitor<TestChannelSigner, &'a TestChainSource, &'a dyn chaininterface::BroadcasterInterface, &'a TestFeeEstimator, &'a TestLogger, &'a dyn chainmonitor::Persist<TestChannelSigner>>,
 268         pub keys_manager: &'a TestKeysInterface,
 269         /// If this is set to Some(), the next update_channel call (not watch_channel) must be a
 270         /// ChannelForceClosed event for the given channel_id with should_broadcast set to the given
 271         /// boolean.
 272         pub expect_channel_force_closed: Mutex<Option<(ChannelId, bool)>>,
 273         /// If this is set to Some(), the next round trip serialization check will not hold after an
 274         /// update_channel call (not watch_channel) for the given channel_id.
 275         pub expect_monitor_round_trip_fail: Mutex<Option<ChannelId>>,
 276 }
 277 impl<'a> TestChainMonitor<'a> {
 278         pub fn new(chain_source: Option<&'a TestChainSource>, broadcaster: &'a dyn chaininterface::BroadcasterInterface, logger: &'a TestLogger, fee_estimator: &'a TestFeeEstimator, persister: &'a dyn chainmonitor::Persist<TestChannelSigner>, keys_manager: &'a TestKeysInterface) -> Self {
 279                 Self {
 280                         added_monitors: Mutex::new(Vec::new()),
 281                         monitor_updates: Mutex::new(HashMap::new()),
 282                         latest_monitor_update_id: Mutex::new(HashMap::new()),
 283                         chain_monitor: chainmonitor::ChainMonitor::new(chain_source, broadcaster, logger, fee_estimator, persister),
 284                         keys_manager,
 285                         expect_channel_force_closed: Mutex::new(None),
 286                         expect_monitor_round_trip_fail: Mutex::new(None),
 287                 }
 288         }
 289
 290         pub fn complete_sole_pending_chan_update(&self, channel_id: &ChannelId) {
 291                 let (outpoint, _, latest_update) = self.latest_monitor_update_id.lock().unwrap().get(channel_id).unwrap().clone();
 292                 self.chain_monitor.channel_monitor_updated(outpoint, latest_update).unwrap();
 293         }
 294 }
 295 impl<'a> chain::Watch<TestChannelSigner> for TestChainMonitor<'a> {
 296         fn watch_channel(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor<TestChannelSigner>) -> Result<chain::ChannelMonitorUpdateStatus, ()> {
 297                 // At every point where we get a monitor update, we should be able to send a useful monitor
 298                 // to a watchtower and disk...
 299                 let mut w = TestVecWriter(Vec::new());
 300                 monitor.write(&mut w).unwrap();
 301                 let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<TestChannelSigner>)>::read(
 302                         &mut io::Cursor::new(&w.0), (self.keys_manager, self.keys_manager)).unwrap().1;
 303                 assert!(new_monitor == monitor);
 304                 self.latest_monitor_update_id.lock().unwrap().insert(funding_txo.to_channel_id(),
 305                         (funding_txo, monitor.get_latest_update_id(), MonitorUpdateId::from_new_monitor(&monitor)));
 306                 self.added_monitors.lock().unwrap().push((funding_txo, monitor));
 307                 self.chain_monitor.watch_channel(funding_txo, new_monitor)
 308         }
 309
 310         fn update_channel(&self, funding_txo: OutPoint, update: &channelmonitor::ChannelMonitorUpdate) -> chain::ChannelMonitorUpdateStatus {
 311                 // Every monitor update should survive roundtrip
 312                 let mut w = TestVecWriter(Vec::new());
 313                 update.write(&mut w).unwrap();
 314                 assert!(channelmonitor::ChannelMonitorUpdate::read(
 315                                 &mut io::Cursor::new(&w.0)).unwrap() == *update);
 316
 317                 self.monitor_updates.lock().unwrap().entry(funding_txo.to_channel_id()).or_insert(Vec::new()).push(update.clone());
 318
 319                 if let Some(exp) = self.expect_channel_force_closed.lock().unwrap().take() {
 320                         assert_eq!(funding_txo.to_channel_id(), exp.0);
 321                         assert_eq!(update.updates.len(), 1);
 322                         if let channelmonitor::ChannelMonitorUpdateStep::ChannelForceClosed { should_broadcast } = update.updates[0] {
 323                                 assert_eq!(should_broadcast, exp.1);
 324                         } else { panic!(); }
 325                 }
 326
 327                 self.latest_monitor_update_id.lock().unwrap().insert(funding_txo.to_channel_id(),
 328                         (funding_txo, update.update_id, MonitorUpdateId::from_monitor_update(update)));
 329                 let update_res = self.chain_monitor.update_channel(funding_txo, update);
 330                 // At every point where we get a monitor update, we should be able to send a useful monitor
 331                 // to a watchtower and disk...
 332                 let monitor = self.chain_monitor.get_monitor(funding_txo).unwrap();
 333                 w.0.clear();
 334                 monitor.write(&mut w).unwrap();
 335                 let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<TestChannelSigner>)>::read(
 336                         &mut io::Cursor::new(&w.0), (self.keys_manager, self.keys_manager)).unwrap().1;
 337                 if let Some(chan_id) = self.expect_monitor_round_trip_fail.lock().unwrap().take() {
 338                         assert_eq!(chan_id, funding_txo.to_channel_id());
 339                         assert!(new_monitor != *monitor);
 340                 } else {
 341                         assert!(new_monitor == *monitor);
 342                 }
 343                 self.added_monitors.lock().unwrap().push((funding_txo, new_monitor));
 344                 update_res
 345         }
 346
 347         fn release_pending_monitor_events(&self) -> Vec<(OutPoint, Vec<MonitorEvent>, Option<PublicKey>)> {
 348                 return self.chain_monitor.release_pending_monitor_events();
 349         }
 350 }
 351
 352 struct JusticeTxData {
 353         justice_tx: Transaction,
 354         value: u64,
 355         commitment_number: u64,
 356 }
 357
 358 pub(crate) struct WatchtowerPersister {
 359         persister: TestPersister,
 360         /// Upon a new commitment_signed, we'll get a
 361         /// ChannelMonitorUpdateStep::LatestCounterpartyCommitmentTxInfo. We'll store the justice tx
 362         /// amount, and commitment number so we can build the justice tx after our counterparty
 363         /// revokes it.
 364         unsigned_justice_tx_data: Mutex<HashMap<OutPoint, VecDeque<JusticeTxData>>>,
 365         /// After receiving a revoke_and_ack for a commitment number, we'll form and store the justice
 366         /// tx which would be used to provide a watchtower with the data it needs.
 367         watchtower_state: Mutex<HashMap<OutPoint, HashMap<Txid, Transaction>>>,
 368         destination_script: ScriptBuf,
 369 }
 370
 371 impl WatchtowerPersister {
 372         #[cfg(test)]
 373         pub(crate) fn new(destination_script: ScriptBuf) -> Self {
 374                 WatchtowerPersister {
 375                         persister: TestPersister::new(),
 376                         unsigned_justice_tx_data: Mutex::new(HashMap::new()),
 377                         watchtower_state: Mutex::new(HashMap::new()),
 378                         destination_script,
 379                 }
 380         }
 381
 382         #[cfg(test)]
 383         pub(crate) fn justice_tx(&self, funding_txo: OutPoint, commitment_txid: &Txid)
 384         -> Option<Transaction> {
 385                 self.watchtower_state.lock().unwrap().get(&funding_txo).unwrap().get(commitment_txid).cloned()
 386         }
 387
 388         fn form_justice_data_from_commitment(&self, counterparty_commitment_tx: &CommitmentTransaction)
 389         -> Option<JusticeTxData> {
 390                 let trusted_tx = counterparty_commitment_tx.trust();
 391                 let output_idx = trusted_tx.revokeable_output_index()?;
 392                 let built_tx = trusted_tx.built_transaction();
 393                 let value = built_tx.transaction.output[output_idx as usize].value;
 394                 let justice_tx = trusted_tx.build_to_local_justice_tx(
 395                         FEERATE_FLOOR_SATS_PER_KW as u64, self.destination_script.clone()).ok()?;
 396                 let commitment_number = counterparty_commitment_tx.commitment_number();
 397                 Some(JusticeTxData { justice_tx, value, commitment_number })
 398         }
 399 }
 400
 401 impl<Signer: sign::ecdsa::WriteableEcdsaChannelSigner> chainmonitor::Persist<Signer> for WatchtowerPersister {
 402         fn persist_new_channel(&self, funding_txo: OutPoint,
 403                 data: &channelmonitor::ChannelMonitor<Signer>, id: MonitorUpdateId
 404         ) -> chain::ChannelMonitorUpdateStatus {
 405                 let res = self.persister.persist_new_channel(funding_txo, data, id);
 406
 407                 assert!(self.unsigned_justice_tx_data.lock().unwrap()
 408                         .insert(funding_txo, VecDeque::new()).is_none());
 409                 assert!(self.watchtower_state.lock().unwrap()
 410                         .insert(funding_txo, HashMap::new()).is_none());
 411
 412                 let initial_counterparty_commitment_tx = data.initial_counterparty_commitment_tx()
 413                         .expect("First and only call expects Some");
 414                 if let Some(justice_data)
 415                         = self.form_justice_data_from_commitment(&initial_counterparty_commitment_tx) {
 416                         self.unsigned_justice_tx_data.lock().unwrap()
 417                                 .get_mut(&funding_txo).unwrap()
 418                                 .push_back(justice_data);
 419                 }
 420                 res
 421         }
 422
 423         fn update_persisted_channel(
 424                 &self, funding_txo: OutPoint, update: Option<&channelmonitor::ChannelMonitorUpdate>,
 425                 data: &channelmonitor::ChannelMonitor<Signer>, update_id: MonitorUpdateId
 426         ) -> chain::ChannelMonitorUpdateStatus {
 427                 let res = self.persister.update_persisted_channel(funding_txo, update, data, update_id);
 428
 429                 if let Some(update) = update {
 430                         let commitment_txs = data.counterparty_commitment_txs_from_update(update);
 431                         let justice_datas = commitment_txs.into_iter()
 432                                 .filter_map(|commitment_tx| self.form_justice_data_from_commitment(&commitment_tx));
 433                         let mut channels_justice_txs = self.unsigned_justice_tx_data.lock().unwrap();
 434                         let channel_state = channels_justice_txs.get_mut(&funding_txo).unwrap();
 435                         channel_state.extend(justice_datas);
 436
 437                         while let Some(JusticeTxData { justice_tx, value, commitment_number }) = channel_state.front() {
 438                                 let input_idx = 0;
 439                                 let commitment_txid = justice_tx.input[input_idx].previous_output.txid;
 440                                 match data.sign_to_local_justice_tx(justice_tx.clone(), input_idx, *value, *commitment_number) {
 441                                         Ok(signed_justice_tx) => {
 442                                                 let dup = self.watchtower_state.lock().unwrap()
 443                                                         .get_mut(&funding_txo).unwrap()
 444                                                         .insert(commitment_txid, signed_justice_tx);
 445                                                 assert!(dup.is_none());
 446                                                 channel_state.pop_front();
 447                                         },
 448                                         Err(_) => break,
 449                                 }
 450                         }
 451                 }
 452                 res
 453         }
 454 }
 455
 456 pub struct TestPersister {
 457         /// The queue of update statuses we'll return. If none are queued, ::Completed will always be
 458         /// returned.
 459         pub update_rets: Mutex<VecDeque<chain::ChannelMonitorUpdateStatus>>,
 460         /// When we get an update_persisted_channel call with no ChannelMonitorUpdate, we insert the
 461         /// MonitorUpdateId here.
 462         pub chain_sync_monitor_persistences: Mutex<HashMap<OutPoint, HashSet<MonitorUpdateId>>>,
 463         /// When we get an update_persisted_channel call *with* a ChannelMonitorUpdate, we insert the
 464         /// MonitorUpdateId here.
 465         pub offchain_monitor_updates: Mutex<HashMap<OutPoint, HashSet<MonitorUpdateId>>>,
 466 }
 467 impl TestPersister {
 468         pub fn new() -> Self {
 469                 Self {
 470                         update_rets: Mutex::new(VecDeque::new()),
 471                         chain_sync_monitor_persistences: Mutex::new(HashMap::new()),
 472                         offchain_monitor_updates: Mutex::new(HashMap::new()),
 473                 }
 474         }
 475
 476         /// Queue an update status to return.
 477         pub fn set_update_ret(&self, next_ret: chain::ChannelMonitorUpdateStatus) {
 478                 self.update_rets.lock().unwrap().push_back(next_ret);
 479         }
 480 }
 481 impl<Signer: sign::ecdsa::WriteableEcdsaChannelSigner> chainmonitor::Persist<Signer> for TestPersister {
 482         fn persist_new_channel(&self, _funding_txo: OutPoint, _data: &channelmonitor::ChannelMonitor<Signer>, _id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
 483                 if let Some(update_ret) = self.update_rets.lock().unwrap().pop_front() {
 484                         return update_ret
 485                 }
 486                 chain::ChannelMonitorUpdateStatus::Completed
 487         }
 488
 489         fn update_persisted_channel(&self, funding_txo: OutPoint, _update: Option<&channelmonitor::ChannelMonitorUpdate>, _data: &channelmonitor::ChannelMonitor<Signer>, update_id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
 490                 let mut ret = chain::ChannelMonitorUpdateStatus::Completed;
 491                 if let Some(update_ret) = self.update_rets.lock().unwrap().pop_front() {
 492                         ret = update_ret;
 493                 }
 494                 let is_chain_sync = if let UpdateOrigin::ChainSync(_) = update_id.contents { true } else { false };
 495                 if is_chain_sync {
 496                         self.chain_sync_monitor_persistences.lock().unwrap().entry(funding_txo).or_insert(HashSet::new()).insert(update_id);
 497                 } else {
 498                         self.offchain_monitor_updates.lock().unwrap().entry(funding_txo).or_insert(HashSet::new()).insert(update_id);
 499                 }
 500                 ret
 501         }
 502 }
 503
 504 pub struct TestStore {
 505         persisted_bytes: Mutex<HashMap<String, HashMap<String, Vec<u8>>>>,
 506         read_only: bool,
 507 }
 508
 509 impl TestStore {
 510         pub fn new(read_only: bool) -> Self {
 511                 let persisted_bytes = Mutex::new(HashMap::new());
 512                 Self { persisted_bytes, read_only }
 513         }
 514 }
 515
 516 impl KVStore for TestStore {
 517         fn read(&self, primary_namespace: &str, secondary_namespace: &str, key: &str) -> io::Result<Vec<u8>> {
 518                 let persisted_lock = self.persisted_bytes.lock().unwrap();
 519                 let prefixed = if secondary_namespace.is_empty() {
 520                         primary_namespace.to_string()
 521                 } else {
 522                         format!("{}/{}", primary_namespace, secondary_namespace)
 523                 };
 524
 525                 if let Some(outer_ref) = persisted_lock.get(&prefixed) {
 526                         if let Some(inner_ref) = outer_ref.get(key) {
 527                                 let bytes = inner_ref.clone();
 528                                 Ok(bytes)
 529                         } else {
 530                                 Err(io::Error::new(io::ErrorKind::NotFound, "Key not found"))
 531                         }
 532                 } else {
 533                         Err(io::Error::new(io::ErrorKind::NotFound, "Namespace not found"))
 534                 }
 535         }
 536
 537         fn write(&self, primary_namespace: &str, secondary_namespace: &str, key: &str, buf: &[u8]) -> io::Result<()> {
 538                 if self.read_only {
 539                         return Err(io::Error::new(
 540                                 io::ErrorKind::PermissionDenied,
 541                                 "Cannot modify read-only store",
 542                         ));
 543                 }
 544                 let mut persisted_lock = self.persisted_bytes.lock().unwrap();
 545
 546                 let prefixed = if secondary_namespace.is_empty() {
 547                         primary_namespace.to_string()
 548                 } else {
 549                         format!("{}/{}", primary_namespace, secondary_namespace)
 550                 };
 551                 let outer_e = persisted_lock.entry(prefixed).or_insert(HashMap::new());
 552                 let mut bytes = Vec::new();
 553                 bytes.write_all(buf)?;
 554                 outer_e.insert(key.to_string(), bytes);
 555                 Ok(())
 556         }
 557
 558         fn remove(&self, primary_namespace: &str, secondary_namespace: &str, key: &str, _lazy: bool) -> io::Result<()> {
 559                 if self.read_only {
 560                         return Err(io::Error::new(
 561                                 io::ErrorKind::PermissionDenied,
 562                                 "Cannot modify read-only store",
 563                         ));
 564                 }
 565
 566                 let mut persisted_lock = self.persisted_bytes.lock().unwrap();
 567
 568                 let prefixed = if secondary_namespace.is_empty() {
 569                         primary_namespace.to_string()
 570                 } else {
 571                         format!("{}/{}", primary_namespace, secondary_namespace)
 572                 };
 573                 if let Some(outer_ref) = persisted_lock.get_mut(&prefixed) {
 574                                 outer_ref.remove(&key.to_string());
 575                 }
 576
 577                 Ok(())
 578         }
 579
 580         fn list(&self, primary_namespace: &str, secondary_namespace: &str) -> io::Result<Vec<String>> {
 581                 let mut persisted_lock = self.persisted_bytes.lock().unwrap();
 582
 583                 let prefixed = if secondary_namespace.is_empty() {
 584                         primary_namespace.to_string()
 585                 } else {
 586                         format!("{}/{}", primary_namespace, secondary_namespace)
 587                 };
 588                 match persisted_lock.entry(prefixed) {
 589                         hash_map::Entry::Occupied(e) => Ok(e.get().keys().cloned().collect()),
 590                         hash_map::Entry::Vacant(_) => Ok(Vec::new()),
 591                 }
 592         }
 593 }
 594
 595 pub struct TestBroadcaster {
 596         pub txn_broadcasted: Mutex<Vec<Transaction>>,
 597         pub blocks: Arc<Mutex<Vec<(Block, u32)>>>,
 598 }
 599
 600 impl TestBroadcaster {
 601         pub fn new(network: Network) -> Self {
 602                 Self {
 603                         txn_broadcasted: Mutex::new(Vec::new()),
 604                         blocks: Arc::new(Mutex::new(vec![(genesis_block(network), 0)])),
 605                 }
 606         }
 607
 608         pub fn with_blocks(blocks: Arc<Mutex<Vec<(Block, u32)>>>) -> Self {
 609                 Self { txn_broadcasted: Mutex::new(Vec::new()), blocks }
 610         }
 611
 612         pub fn txn_broadcast(&self) -> Vec<Transaction> {
 613                 self.txn_broadcasted.lock().unwrap().split_off(0)
 614         }
 615
 616         pub fn unique_txn_broadcast(&self) -> Vec<Transaction> {
 617                 let mut txn = self.txn_broadcasted.lock().unwrap().split_off(0);
 618                 let mut seen = HashSet::new();
 619                 txn.retain(|tx| seen.insert(tx.txid()));
 620                 txn
 621         }
 622 }
 623
 624 impl chaininterface::BroadcasterInterface for TestBroadcaster {
 625         fn broadcast_transactions(&self, txs: &[&Transaction]) {
 626                 for tx in txs {
 627                         let lock_time = tx.lock_time.to_consensus_u32();
 628                         assert!(lock_time < 1_500_000_000);
 629                         if tx.lock_time.is_block_height() && lock_time > self.blocks.lock().unwrap().last().unwrap().1 {
 630                                 for inp in tx.input.iter() {
 631                                         if inp.sequence != Sequence::MAX {
 632                                                 panic!("We should never broadcast a transaction before its locktime ({})!", tx.lock_time);
 633                                         }
 634                                 }
 635                         }
 636                 }
 637                 let owned_txs: Vec<Transaction> = txs.iter().map(|tx| (*tx).clone()).collect();
 638                 self.txn_broadcasted.lock().unwrap().extend(owned_txs);
 639         }
 640 }
 641
 642 pub struct TestChannelMessageHandler {
 643         pub pending_events: Mutex<Vec<events::MessageSendEvent>>,
 644         expected_recv_msgs: Mutex<Option<Vec<wire::Message<()>>>>,
 645         connected_peers: Mutex<HashSet<PublicKey>>,
 646         pub message_fetch_counter: AtomicUsize,
 647         chain_hash: ChainHash,
 648 }
 649
 650 impl TestChannelMessageHandler {
 651         pub fn new(chain_hash: ChainHash) -> Self {
 652                 TestChannelMessageHandler {
 653                         pending_events: Mutex::new(Vec::new()),
 654                         expected_recv_msgs: Mutex::new(None),
 655                         connected_peers: Mutex::new(HashSet::new()),
 656                         message_fetch_counter: AtomicUsize::new(0),
 657                         chain_hash,
 658                 }
 659         }
 660
 661         #[cfg(test)]
 662         pub(crate) fn expect_receive_msg(&self, ev: wire::Message<()>) {
 663                 let mut expected_msgs = self.expected_recv_msgs.lock().unwrap();
 664                 if expected_msgs.is_none() { *expected_msgs = Some(Vec::new()); }
 665                 expected_msgs.as_mut().unwrap().push(ev);
 666         }
 667
 668         fn received_msg(&self, _ev: wire::Message<()>) {
 669                 let mut msgs = self.expected_recv_msgs.lock().unwrap();
 670                 if msgs.is_none() { return; }
 671                 assert!(!msgs.as_ref().unwrap().is_empty(), "Received message when we weren't expecting one");
 672                 #[cfg(test)]
 673                 assert_eq!(msgs.as_ref().unwrap()[0], _ev);
 674                 msgs.as_mut().unwrap().remove(0);
 675         }
 676 }
 677
 678 impl Drop for TestChannelMessageHandler {
 679         fn drop(&mut self) {
 680                 #[cfg(feature = "std")]
 681                 {
 682                         let l = self.expected_recv_msgs.lock().unwrap();
 683                         if !std::thread::panicking() {
 684                                 assert!(l.is_none() || l.as_ref().unwrap().is_empty());
 685                         }
 686                 }
 687         }
 688 }
 689
 690 impl msgs::ChannelMessageHandler for TestChannelMessageHandler {
 691         fn handle_open_channel(&self, _their_node_id: &PublicKey, msg: &msgs::OpenChannel) {
 692                 self.received_msg(wire::Message::OpenChannel(msg.clone()));
 693         }
 694         fn handle_accept_channel(&self, _their_node_id: &PublicKey, msg: &msgs::AcceptChannel) {
 695                 self.received_msg(wire::Message::AcceptChannel(msg.clone()));
 696         }
 697         fn handle_funding_created(&self, _their_node_id: &PublicKey, msg: &msgs::FundingCreated) {
 698                 self.received_msg(wire::Message::FundingCreated(msg.clone()));
 699         }
 700         fn handle_funding_signed(&self, _their_node_id: &PublicKey, msg: &msgs::FundingSigned) {
 701                 self.received_msg(wire::Message::FundingSigned(msg.clone()));
 702         }
 703         fn handle_channel_ready(&self, _their_node_id: &PublicKey, msg: &msgs::ChannelReady) {
 704                 self.received_msg(wire::Message::ChannelReady(msg.clone()));
 705         }
 706         fn handle_shutdown(&self, _their_node_id: &PublicKey, msg: &msgs::Shutdown) {
 707                 self.received_msg(wire::Message::Shutdown(msg.clone()));
 708         }
 709         fn handle_closing_signed(&self, _their_node_id: &PublicKey, msg: &msgs::ClosingSigned) {
 710                 self.received_msg(wire::Message::ClosingSigned(msg.clone()));
 711         }
 712         fn handle_stfu(&self, _their_node_id: &PublicKey, msg: &msgs::Stfu) {
 713                 self.received_msg(wire::Message::Stfu(msg.clone()));
 714         }
 715         fn handle_splice(&self, _their_node_id: &PublicKey, msg: &msgs::Splice) {
 716                 self.received_msg(wire::Message::Splice(msg.clone()));
 717         }
 718         fn handle_splice_ack(&self, _their_node_id: &PublicKey, msg: &msgs::SpliceAck) {
 719                 self.received_msg(wire::Message::SpliceAck(msg.clone()));
 720         }
 721         fn handle_splice_locked(&self, _their_node_id: &PublicKey, msg: &msgs::SpliceLocked) {
 722                 self.received_msg(wire::Message::SpliceLocked(msg.clone()));
 723         }
 724         fn handle_update_add_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) {
 725                 self.received_msg(wire::Message::UpdateAddHTLC(msg.clone()));
 726         }
 727         fn handle_update_fulfill_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) {
 728                 self.received_msg(wire::Message::UpdateFulfillHTLC(msg.clone()));
 729         }
 730         fn handle_update_fail_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) {
 731                 self.received_msg(wire::Message::UpdateFailHTLC(msg.clone()));
 732         }
 733         fn handle_update_fail_malformed_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) {
 734                 self.received_msg(wire::Message::UpdateFailMalformedHTLC(msg.clone()));
 735         }
 736         fn handle_commitment_signed(&self, _their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) {
 737                 self.received_msg(wire::Message::CommitmentSigned(msg.clone()));
 738         }
 739         fn handle_revoke_and_ack(&self, _their_node_id: &PublicKey, msg: &msgs::RevokeAndACK) {
 740                 self.received_msg(wire::Message::RevokeAndACK(msg.clone()));
 741         }
 742         fn handle_update_fee(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFee) {
 743                 self.received_msg(wire::Message::UpdateFee(msg.clone()));
 744         }
 745         fn handle_channel_update(&self, _their_node_id: &PublicKey, _msg: &msgs::ChannelUpdate) {
 746                 // Don't call `received_msg` here as `TestRoutingMessageHandler` generates these sometimes
 747         }
 748         fn handle_announcement_signatures(&self, _their_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) {
 749                 self.received_msg(wire::Message::AnnouncementSignatures(msg.clone()));
 750         }
 751         fn handle_channel_reestablish(&self, _their_node_id: &PublicKey, msg: &msgs::ChannelReestablish) {
 752                 self.received_msg(wire::Message::ChannelReestablish(msg.clone()));
 753         }
 754         fn peer_disconnected(&self, their_node_id: &PublicKey) {
 755                 assert!(self.connected_peers.lock().unwrap().remove(their_node_id));
 756         }
 757         fn peer_connected(&self, their_node_id: &PublicKey, _msg: &msgs::Init, _inbound: bool) -> Result<(), ()> {
 758                 assert!(self.connected_peers.lock().unwrap().insert(their_node_id.clone()));
 759                 // Don't bother with `received_msg` for Init as its auto-generated and we don't want to
 760                 // bother re-generating the expected Init message in all tests.
 761                 Ok(())
 762         }
 763         fn handle_error(&self, _their_node_id: &PublicKey, msg: &msgs::ErrorMessage) {
 764                 self.received_msg(wire::Message::Error(msg.clone()));
 765         }
 766         fn provided_node_features(&self) -> NodeFeatures {
 767                 channelmanager::provided_node_features(&UserConfig::default())
 768         }
 769         fn provided_init_features(&self, _their_init_features: &PublicKey) -> InitFeatures {
 770                 channelmanager::provided_init_features(&UserConfig::default())
 771         }
 772
 773         fn get_chain_hashes(&self) -> Option<Vec<ChainHash>> {
 774                 Some(vec![self.chain_hash])
 775         }
 776
 777         fn handle_open_channel_v2(&self, _their_node_id: &PublicKey, msg: &msgs::OpenChannelV2) {
 778                 self.received_msg(wire::Message::OpenChannelV2(msg.clone()));
 779         }
 780
 781         fn handle_accept_channel_v2(&self, _their_node_id: &PublicKey, msg: &msgs::AcceptChannelV2) {
 782                 self.received_msg(wire::Message::AcceptChannelV2(msg.clone()));
 783         }
 784
 785         fn handle_tx_add_input(&self, _their_node_id: &PublicKey, msg: &msgs::TxAddInput) {
 786                 self.received_msg(wire::Message::TxAddInput(msg.clone()));
 787         }
 788
 789         fn handle_tx_add_output(&self, _their_node_id: &PublicKey, msg: &msgs::TxAddOutput) {
 790                 self.received_msg(wire::Message::TxAddOutput(msg.clone()));
 791         }
 792
 793         fn handle_tx_remove_input(&self, _their_node_id: &PublicKey, msg: &msgs::TxRemoveInput) {
 794                 self.received_msg(wire::Message::TxRemoveInput(msg.clone()));
 795         }
 796
 797         fn handle_tx_remove_output(&self, _their_node_id: &PublicKey, msg: &msgs::TxRemoveOutput) {
 798                 self.received_msg(wire::Message::TxRemoveOutput(msg.clone()));
 799         }
 800
 801         fn handle_tx_complete(&self, _their_node_id: &PublicKey, msg: &msgs::TxComplete) {
 802                 self.received_msg(wire::Message::TxComplete(msg.clone()));
 803         }
 804
 805         fn handle_tx_signatures(&self, _their_node_id: &PublicKey, msg: &msgs::TxSignatures) {
 806                 self.received_msg(wire::Message::TxSignatures(msg.clone()));
 807         }
 808
 809         fn handle_tx_init_rbf(&self, _their_node_id: &PublicKey, msg: &msgs::TxInitRbf) {
 810                 self.received_msg(wire::Message::TxInitRbf(msg.clone()));
 811         }
 812
 813         fn handle_tx_ack_rbf(&self, _their_node_id: &PublicKey, msg: &msgs::TxAckRbf) {
 814                 self.received_msg(wire::Message::TxAckRbf(msg.clone()));
 815         }
 816
 817         fn handle_tx_abort(&self, _their_node_id: &PublicKey, msg: &msgs::TxAbort) {
 818                 self.received_msg(wire::Message::TxAbort(msg.clone()));
 819         }
 820 }
 821
 822 impl events::MessageSendEventsProvider for TestChannelMessageHandler {
 823         fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
 824                 self.message_fetch_counter.fetch_add(1, Ordering::AcqRel);
 825                 let mut pending_events = self.pending_events.lock().unwrap();
 826                 let mut ret = Vec::new();
 827                 mem::swap(&mut ret, &mut *pending_events);
 828                 ret
 829         }
 830 }
 831
 832 fn get_dummy_channel_announcement(short_chan_id: u64) -> msgs::ChannelAnnouncement {
 833         use bitcoin::secp256k1::ffi::Signature as FFISignature;
 834         let secp_ctx = Secp256k1::new();
 835         let network = Network::Testnet;
 836         let node_1_privkey = SecretKey::from_slice(&[42; 32]).unwrap();
 837         let node_2_privkey = SecretKey::from_slice(&[41; 32]).unwrap();
 838         let node_1_btckey = SecretKey::from_slice(&[40; 32]).unwrap();
 839         let node_2_btckey = SecretKey::from_slice(&[39; 32]).unwrap();
 840         let unsigned_ann = msgs::UnsignedChannelAnnouncement {
 841                 features: ChannelFeatures::empty(),
 842                 chain_hash: ChainHash::using_genesis_block(network),
 843                 short_channel_id: short_chan_id,
 844                 node_id_1: NodeId::from_pubkey(&PublicKey::from_secret_key(&secp_ctx, &node_1_privkey)),
 845                 node_id_2: NodeId::from_pubkey(&PublicKey::from_secret_key(&secp_ctx, &node_2_privkey)),
 846                 bitcoin_key_1: NodeId::from_pubkey(&PublicKey::from_secret_key(&secp_ctx, &node_1_btckey)),
 847                 bitcoin_key_2: NodeId::from_pubkey(&PublicKey::from_secret_key(&secp_ctx, &node_2_btckey)),
 848                 excess_data: Vec::new(),
 849         };
 850
 851         unsafe {
 852                 msgs::ChannelAnnouncement {
 853                         node_signature_1: Signature::from(FFISignature::new()),
 854                         node_signature_2: Signature::from(FFISignature::new()),
 855                         bitcoin_signature_1: Signature::from(FFISignature::new()),
 856                         bitcoin_signature_2: Signature::from(FFISignature::new()),
 857                         contents: unsigned_ann,
 858                 }
 859         }
 860 }
 861
 862 fn get_dummy_channel_update(short_chan_id: u64) -> msgs::ChannelUpdate {
 863         use bitcoin::secp256k1::ffi::Signature as FFISignature;
 864         let network = Network::Testnet;
 865         msgs::ChannelUpdate {
 866                 signature: Signature::from(unsafe { FFISignature::new() }),
 867                 contents: msgs::UnsignedChannelUpdate {
 868                         chain_hash: ChainHash::using_genesis_block(network),
 869                         short_channel_id: short_chan_id,
 870                         timestamp: 0,
 871                         flags: 0,
 872                         cltv_expiry_delta: 0,
 873                         htlc_minimum_msat: 0,
 874                         htlc_maximum_msat: msgs::MAX_VALUE_MSAT,
 875                         fee_base_msat: 0,
 876                         fee_proportional_millionths: 0,
 877                         excess_data: vec![],
 878                 }
 879         }
 880 }
 881
 882 pub struct TestRoutingMessageHandler {
 883         pub chan_upds_recvd: AtomicUsize,
 884         pub chan_anns_recvd: AtomicUsize,
 885         pub pending_events: Mutex<Vec<events::MessageSendEvent>>,
 886         pub request_full_sync: AtomicBool,
 887 }
 888
 889 impl TestRoutingMessageHandler {
 890         pub fn new() -> Self {
 891                 TestRoutingMessageHandler {
 892                         chan_upds_recvd: AtomicUsize::new(0),
 893                         chan_anns_recvd: AtomicUsize::new(0),
 894                         pending_events: Mutex::new(vec![]),
 895                         request_full_sync: AtomicBool::new(false),
 896                 }
 897         }
 898 }
 899 impl msgs::RoutingMessageHandler for TestRoutingMessageHandler {
 900         fn handle_node_announcement(&self, _msg: &msgs::NodeAnnouncement) -> Result<bool, msgs::LightningError> {
 901                 Err(msgs::LightningError { err: "".to_owned(), action: msgs::ErrorAction::IgnoreError })
 902         }
 903         fn handle_channel_announcement(&self, _msg: &msgs::ChannelAnnouncement) -> Result<bool, msgs::LightningError> {
 904                 self.chan_anns_recvd.fetch_add(1, Ordering::AcqRel);
 905                 Err(msgs::LightningError { err: "".to_owned(), action: msgs::ErrorAction::IgnoreError })
 906         }
 907         fn handle_channel_update(&self, _msg: &msgs::ChannelUpdate) -> Result<bool, msgs::LightningError> {
 908                 self.chan_upds_recvd.fetch_add(1, Ordering::AcqRel);
 909                 Err(msgs::LightningError { err: "".to_owned(), action: msgs::ErrorAction::IgnoreError })
 910         }
 911         fn get_next_channel_announcement(&self, starting_point: u64) -> Option<(msgs::ChannelAnnouncement, Option<msgs::ChannelUpdate>, Option<msgs::ChannelUpdate>)> {
 912                 let chan_upd_1 = get_dummy_channel_update(starting_point);
 913                 let chan_upd_2 = get_dummy_channel_update(starting_point);
 914                 let chan_ann = get_dummy_channel_announcement(starting_point);
 915
 916                 Some((chan_ann, Some(chan_upd_1), Some(chan_upd_2)))
 917         }
 918
 919         fn get_next_node_announcement(&self, _starting_point: Option<&NodeId>) -> Option<msgs::NodeAnnouncement> {
 920                 None
 921         }
 922
 923         fn peer_connected(&self, their_node_id: &PublicKey, init_msg: &msgs::Init, _inbound: bool) -> Result<(), ()> {
 924                 if !init_msg.features.supports_gossip_queries() {
 925                         return Ok(());
 926                 }
 927
 928                 #[allow(unused_mut, unused_assignments)]
 929                 let mut gossip_start_time = 0;
 930                 #[cfg(feature = "std")]
 931                 {
 932                         gossip_start_time = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time must be > 1970").as_secs();
 933                         if self.request_full_sync.load(Ordering::Acquire) {
 934                                 gossip_start_time -= 60 * 60 * 24 * 7 * 2; // 2 weeks ago
 935                         } else {
 936                                 gossip_start_time -= 60 * 60; // an hour ago
 937                         }
 938                 }
 939
 940                 let mut pending_events = self.pending_events.lock().unwrap();
 941                 pending_events.push(events::MessageSendEvent::SendGossipTimestampFilter {
 942                         node_id: their_node_id.clone(),
 943                         msg: msgs::GossipTimestampFilter {
 944                                 chain_hash: ChainHash::using_genesis_block(Network::Testnet),
 945                                 first_timestamp: gossip_start_time as u32,
 946                                 timestamp_range: u32::max_value(),
 947                         },
 948                 });
 949                 Ok(())
 950         }
 951
 952         fn handle_reply_channel_range(&self, _their_node_id: &PublicKey, _msg: msgs::ReplyChannelRange) -> Result<(), msgs::LightningError> {
 953                 Ok(())
 954         }
 955
 956         fn handle_reply_short_channel_ids_end(&self, _their_node_id: &PublicKey, _msg: msgs::ReplyShortChannelIdsEnd) -> Result<(), msgs::LightningError> {
 957                 Ok(())
 958         }
 959
 960         fn handle_query_channel_range(&self, _their_node_id: &PublicKey, _msg: msgs::QueryChannelRange) -> Result<(), msgs::LightningError> {
 961                 Ok(())
 962         }
 963
 964         fn handle_query_short_channel_ids(&self, _their_node_id: &PublicKey, _msg: msgs::QueryShortChannelIds) -> Result<(), msgs::LightningError> {
 965                 Ok(())
 966         }
 967
 968         fn provided_node_features(&self) -> NodeFeatures {
 969                 let mut features = NodeFeatures::empty();
 970                 features.set_gossip_queries_optional();
 971                 features
 972         }
 973
 974         fn provided_init_features(&self, _their_init_features: &PublicKey) -> InitFeatures {
 975                 let mut features = InitFeatures::empty();
 976                 features.set_gossip_queries_optional();
 977                 features
 978         }
 979
 980         fn processing_queue_high(&self) -> bool { false }
 981 }
 982
 983 impl events::MessageSendEventsProvider for TestRoutingMessageHandler {
 984         fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
 985                 let mut ret = Vec::new();
 986                 let mut pending_events = self.pending_events.lock().unwrap();
 987                 core::mem::swap(&mut ret, &mut pending_events);
 988                 ret
 989         }
 990 }
 991
 992 pub struct TestLogger {
 993         level: Level,
 994         pub(crate) id: String,
 995         pub lines: Mutex<HashMap<(&'static str, String), usize>>,
 996         pub context: Mutex<HashMap<(&'static str, Option<PublicKey>, Option<ChannelId>), usize>>,
 997 }
 998
 999 impl TestLogger {
1000         pub fn new() -> TestLogger {
1001                 Self::with_id("".to_owned())
1002         }
1003         pub fn with_id(id: String) -> TestLogger {
1004                 TestLogger {
1005                         level: Level::Trace,
1006                         id,
1007                         lines: Mutex::new(HashMap::new()),
1008                         context: Mutex::new(HashMap::new()),
1009                 }
1010         }
1011         pub fn enable(&mut self, level: Level) {
1012                 self.level = level;
1013         }
1014         pub fn assert_log(&self, module: &str, line: String, count: usize) {
1015                 let log_entries = self.lines.lock().unwrap();
1016                 assert_eq!(log_entries.get(&(module, line)), Some(&count));
1017         }
1018
1019         /// Search for the number of occurrence of the logged lines which
1020         /// 1. belongs to the specified module and
1021         /// 2. contains `line` in it.
1022         /// And asserts if the number of occurrences is the same with the given `count`
1023         pub fn assert_log_contains(&self, module: &str, line: &str, count: usize) {
1024                 let log_entries = self.lines.lock().unwrap();
1025                 let l: usize = log_entries.iter().filter(|&(&(ref m, ref l), _c)| {
1026                         *m == module && l.contains(line)
1027                 }).map(|(_, c) | { c }).sum();
1028                 assert_eq!(l, count)
1029         }
1030
1031         /// Search for the number of occurrences of logged lines which
1032         /// 1. belong to the specified module and
1033         /// 2. match the given regex pattern.
1034         /// Assert that the number of occurrences equals the given `count`
1035         #[cfg(any(test, feature = "_test_utils"))]
1036         pub fn assert_log_regex(&self, module: &str, pattern: regex::Regex, count: usize) {
1037                 let log_entries = self.lines.lock().unwrap();
1038                 let l: usize = log_entries.iter().filter(|&(&(ref m, ref l), _c)| {
1039                         *m == module && pattern.is_match(&l)
1040                 }).map(|(_, c) | { c }).sum();
1041                 assert_eq!(l, count)
1042         }
1043
1044         pub fn assert_log_context_contains(
1045                 &self, module: &str, peer_id: Option<PublicKey>, channel_id: Option<ChannelId>, count: usize
1046         ) {
1047                 let context_entries = self.context.lock().unwrap();
1048                 let l = context_entries.get(&(module, peer_id, channel_id)).unwrap();
1049                 assert_eq!(*l, count)
1050         }
1051 }
1052
1053 impl Logger for TestLogger {
1054         fn log(&self, record: Record) {
1055                 *self.lines.lock().unwrap().entry((record.module_path, format!("{}", record.args))).or_insert(0) += 1;
1056                 *self.context.lock().unwrap().entry((record.module_path, record.peer_id, record.channel_id)).or_insert(0) += 1;
1057                 if record.level >= self.level {
1058                         #[cfg(all(not(ldk_bench), feature = "std"))] {
1059                                 let pfx = format!("{} {} [{}:{}]", self.id, record.level.to_string(), record.module_path, record.line);
1060                                 println!("{:<55}{}", pfx, record.args);
1061                         }
1062                 }
1063         }
1064 }
1065
1066 pub struct TestNodeSigner {
1067         node_secret: SecretKey,
1068 }
1069
1070 impl TestNodeSigner {
1071         pub fn new(node_secret: SecretKey) -> Self {
1072                 Self { node_secret }
1073         }
1074 }
1075
1076 impl NodeSigner for TestNodeSigner {
1077         fn get_inbound_payment_key_material(&self) -> crate::sign::KeyMaterial {
1078                 unreachable!()
1079         }
1080
1081         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
1082                 let node_secret = match recipient {
1083                         Recipient::Node => Ok(&self.node_secret),
1084                         Recipient::PhantomNode => Err(())
1085                 }?;
1086                 Ok(PublicKey::from_secret_key(&Secp256k1::signing_only(), node_secret))
1087         }
1088
1089         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&bitcoin::secp256k1::Scalar>) -> Result<SharedSecret, ()> {
1090                 let mut node_secret = match recipient {
1091                         Recipient::Node => Ok(self.node_secret.clone()),
1092                         Recipient::PhantomNode => Err(())
1093                 }?;
1094                 if let Some(tweak) = tweak {
1095                         node_secret = node_secret.mul_tweak(tweak).map_err(|_| ())?;
1096                 }
1097                 Ok(SharedSecret::new(other_key, &node_secret))
1098         }
1099
1100         fn sign_invoice(&self, _: &[u8], _: &[bitcoin::bech32::u5], _: Recipient) -> Result<bitcoin::secp256k1::ecdsa::RecoverableSignature, ()> {
1101                 unreachable!()
1102         }
1103
1104         fn sign_bolt12_invoice_request(
1105                 &self, _invoice_request: &UnsignedInvoiceRequest
1106         ) -> Result<schnorr::Signature, ()> {
1107                 unreachable!()
1108         }
1109
1110         fn sign_bolt12_invoice(
1111                 &self, _invoice: &UnsignedBolt12Invoice,
1112         ) -> Result<schnorr::Signature, ()> {
1113                 unreachable!()
1114         }
1115
1116         fn sign_gossip_message(&self, _msg: msgs::UnsignedGossipMessage) -> Result<Signature, ()> {
1117                 unreachable!()
1118         }
1119 }
1120
1121 pub struct TestKeysInterface {
1122         pub backing: sign::PhantomKeysManager,
1123         pub override_random_bytes: Mutex<Option<[u8; 32]>>,
1124         pub disable_revocation_policy_check: bool,
1125         enforcement_states: Mutex<HashMap<[u8;32], Arc<Mutex<EnforcementState>>>>,
1126         expectations: Mutex<Option<VecDeque<OnGetShutdownScriptpubkey>>>,
1127 }
1128
1129 impl EntropySource for TestKeysInterface {
1130         fn get_secure_random_bytes(&self) -> [u8; 32] {
1131                 let override_random_bytes = self.override_random_bytes.lock().unwrap();
1132                 if let Some(bytes) = &*override_random_bytes {
1133                         return *bytes;
1134                 }
1135                 self.backing.get_secure_random_bytes()
1136         }
1137 }
1138
1139 impl NodeSigner for TestKeysInterface {
1140         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
1141                 self.backing.get_node_id(recipient)
1142         }
1143
1144         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&Scalar>) -> Result<SharedSecret, ()> {
1145                 self.backing.ecdh(recipient, other_key, tweak)
1146         }
1147
1148         fn get_inbound_payment_key_material(&self) -> sign::KeyMaterial {
1149                 self.backing.get_inbound_payment_key_material()
1150         }
1151
1152         fn sign_invoice(&self, hrp_bytes: &[u8], invoice_data: &[u5], recipient: Recipient) -> Result<RecoverableSignature, ()> {
1153                 self.backing.sign_invoice(hrp_bytes, invoice_data, recipient)
1154         }
1155
1156         fn sign_bolt12_invoice_request(
1157                 &self, invoice_request: &UnsignedInvoiceRequest
1158         ) -> Result<schnorr::Signature, ()> {
1159                 self.backing.sign_bolt12_invoice_request(invoice_request)
1160         }
1161
1162         fn sign_bolt12_invoice(
1163                 &self, invoice: &UnsignedBolt12Invoice,
1164         ) -> Result<schnorr::Signature, ()> {
1165                 self.backing.sign_bolt12_invoice(invoice)
1166         }
1167
1168         fn sign_gossip_message(&self, msg: msgs::UnsignedGossipMessage) -> Result<Signature, ()> {
1169                 self.backing.sign_gossip_message(msg)
1170         }
1171 }
1172
1173 impl SignerProvider for TestKeysInterface {
1174         type EcdsaSigner = TestChannelSigner;
1175         #[cfg(taproot)]
1176         type TaprootSigner = TestChannelSigner;
1177
1178         fn generate_channel_keys_id(&self, inbound: bool, channel_value_satoshis: u64, user_channel_id: u128) -> [u8; 32] {
1179                 self.backing.generate_channel_keys_id(inbound, channel_value_satoshis, user_channel_id)
1180         }
1181
1182         fn derive_channel_signer(&self, channel_value_satoshis: u64, channel_keys_id: [u8; 32]) -> TestChannelSigner {
1183                 let keys = self.backing.derive_channel_signer(channel_value_satoshis, channel_keys_id);
1184                 let state = self.make_enforcement_state_cell(keys.commitment_seed);
1185                 TestChannelSigner::new_with_revoked(keys, state, self.disable_revocation_policy_check)
1186         }
1187
1188         fn read_chan_signer(&self, buffer: &[u8]) -> Result<Self::EcdsaSigner, msgs::DecodeError> {
1189                 let mut reader = io::Cursor::new(buffer);
1190
1191                 let inner: InMemorySigner = ReadableArgs::read(&mut reader, self)?;
1192                 let state = self.make_enforcement_state_cell(inner.commitment_seed);
1193
1194                 Ok(TestChannelSigner::new_with_revoked(
1195                         inner,
1196                         state,
1197                         self.disable_revocation_policy_check
1198                 ))
1199         }
1200
1201         fn get_destination_script(&self, channel_keys_id: [u8; 32]) -> Result<ScriptBuf, ()> { self.backing.get_destination_script(channel_keys_id) }
1202
1203         fn get_shutdown_scriptpubkey(&self) -> Result<ShutdownScript, ()> {
1204                 match &mut *self.expectations.lock().unwrap() {
1205                         None => self.backing.get_shutdown_scriptpubkey(),
1206                         Some(expectations) => match expectations.pop_front() {
1207                                 None => panic!("Unexpected get_shutdown_scriptpubkey"),
1208                                 Some(expectation) => Ok(expectation.returns),
1209                         },
1210                 }
1211         }
1212 }
1213
1214 impl TestKeysInterface {
1215         pub fn new(seed: &[u8; 32], network: Network) -> Self {
1216                 let now = Duration::from_secs(genesis_block(network).header.time as u64);
1217                 Self {
1218                         backing: sign::PhantomKeysManager::new(seed, now.as_secs(), now.subsec_nanos(), seed),
1219                         override_random_bytes: Mutex::new(None),
1220                         disable_revocation_policy_check: false,
1221                         enforcement_states: Mutex::new(HashMap::new()),
1222                         expectations: Mutex::new(None),
1223                 }
1224         }
1225
1226         /// Sets an expectation that [`sign::SignerProvider::get_shutdown_scriptpubkey`] is
1227         /// called.
1228         pub fn expect(&self, expectation: OnGetShutdownScriptpubkey) -> &Self {
1229                 self.expectations.lock().unwrap()
1230                         .get_or_insert_with(|| VecDeque::new())
1231                         .push_back(expectation);
1232                 self
1233         }
1234
1235         pub fn derive_channel_keys(&self, channel_value_satoshis: u64, id: &[u8; 32]) -> TestChannelSigner {
1236                 let keys = self.backing.derive_channel_keys(channel_value_satoshis, id);
1237                 let state = self.make_enforcement_state_cell(keys.commitment_seed);
1238                 TestChannelSigner::new_with_revoked(keys, state, self.disable_revocation_policy_check)
1239         }
1240
1241         fn make_enforcement_state_cell(&self, commitment_seed: [u8; 32]) -> Arc<Mutex<EnforcementState>> {
1242                 let mut states = self.enforcement_states.lock().unwrap();
1243                 if !states.contains_key(&commitment_seed) {
1244                         let state = EnforcementState::new();
1245                         states.insert(commitment_seed, Arc::new(Mutex::new(state)));
1246                 }
1247                 let cell = states.get(&commitment_seed).unwrap();
1248                 Arc::clone(cell)
1249         }
1250 }
1251
1252 pub(crate) fn panicking() -> bool {
1253         #[cfg(feature = "std")]
1254         let panicking = ::std::thread::panicking();
1255         #[cfg(not(feature = "std"))]
1256         let panicking = false;
1257         return panicking;
1258 }
1259
1260 impl Drop for TestKeysInterface {
1261         fn drop(&mut self) {
1262                 if panicking() {
1263                         return;
1264                 }
1265
1266                 if let Some(expectations) = &*self.expectations.lock().unwrap() {
1267                         if !expectations.is_empty() {
1268                                 panic!("Unsatisfied expectations: {:?}", expectations);
1269                         }
1270                 }
1271         }
1272 }
1273
1274 /// An expectation that [`sign::SignerProvider::get_shutdown_scriptpubkey`] was called and
1275 /// returns a [`ShutdownScript`].
1276 pub struct OnGetShutdownScriptpubkey {
1277         /// A shutdown script used to close a channel.
1278         pub returns: ShutdownScript,
1279 }
1280
1281 impl core::fmt::Debug for OnGetShutdownScriptpubkey {
1282         fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
1283                 f.debug_struct("OnGetShutdownScriptpubkey").finish()
1284         }
1285 }
1286
1287 pub struct TestChainSource {
1288         pub chain_hash: ChainHash,
1289         pub utxo_ret: Mutex<UtxoResult>,
1290         pub get_utxo_call_count: AtomicUsize,
1291         pub watched_txn: Mutex<HashSet<(Txid, ScriptBuf)>>,
1292         pub watched_outputs: Mutex<HashSet<(OutPoint, ScriptBuf)>>,
1293 }
1294
1295 impl TestChainSource {
1296         pub fn new(network: Network) -> Self {
1297                 let script_pubkey = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
1298                 Self {
1299                         chain_hash: ChainHash::using_genesis_block(network),
1300                         utxo_ret: Mutex::new(UtxoResult::Sync(Ok(TxOut { value: u64::max_value(), script_pubkey }))),
1301                         get_utxo_call_count: AtomicUsize::new(0),
1302                         watched_txn: Mutex::new(HashSet::new()),
1303                         watched_outputs: Mutex::new(HashSet::new()),
1304                 }
1305         }
1306 }
1307
1308 impl UtxoLookup for TestChainSource {
1309         fn get_utxo(&self, chain_hash: &ChainHash, _short_channel_id: u64) -> UtxoResult {
1310                 self.get_utxo_call_count.fetch_add(1, Ordering::Relaxed);
1311                 if self.chain_hash != *chain_hash {
1312                         return UtxoResult::Sync(Err(UtxoLookupError::UnknownChain));
1313                 }
1314
1315                 self.utxo_ret.lock().unwrap().clone()
1316         }
1317 }
1318
1319 impl chain::Filter for TestChainSource {
1320         fn register_tx(&self, txid: &Txid, script_pubkey: &Script) {
1321                 self.watched_txn.lock().unwrap().insert((*txid, script_pubkey.into()));
1322         }
1323
1324         fn register_output(&self, output: WatchedOutput) {
1325                 self.watched_outputs.lock().unwrap().insert((output.outpoint, output.script_pubkey));
1326         }
1327 }
1328
1329 impl Drop for TestChainSource {
1330         fn drop(&mut self) {
1331                 if panicking() {
1332                         return;
1333                 }
1334         }
1335 }
1336
1337 pub struct TestScorer {
1338         /// Stores a tuple of (scid, ChannelUsage)
1339         scorer_expectations: RefCell<Option<VecDeque<(u64, ChannelUsage)>>>,
1340 }
1341
1342 impl TestScorer {
1343         pub fn new() -> Self {
1344                 Self {
1345                         scorer_expectations: RefCell::new(None),
1346                 }
1347         }
1348
1349         pub fn expect_usage(&self, scid: u64, expectation: ChannelUsage) {
1350                 self.scorer_expectations.borrow_mut().get_or_insert_with(|| VecDeque::new()).push_back((scid, expectation));
1351         }
1352 }
1353
1354 #[cfg(c_bindings)]
1355 impl crate::util::ser::Writeable for TestScorer {
1356         fn write<W: crate::util::ser::Writer>(&self, _: &mut W) -> Result<(), crate::io::Error> { unreachable!(); }
1357 }
1358
1359 impl ScoreLookUp for TestScorer {
1360         type ScoreParams = ();
1361         fn channel_penalty_msat(
1362                 &self, candidate: &CandidateRouteHop, usage: ChannelUsage, _score_params: &Self::ScoreParams
1363         ) -> u64 {
1364                 let short_channel_id = match candidate.globally_unique_short_channel_id() {
1365                         Some(scid) => scid,
1366                         None => return 0,
1367                 };
1368                 if let Some(scorer_expectations) = self.scorer_expectations.borrow_mut().as_mut() {
1369                         match scorer_expectations.pop_front() {
1370                                 Some((scid, expectation)) => {
1371                                         assert_eq!(expectation, usage);
1372                                         assert_eq!(scid, short_channel_id);
1373                                 },
1374                                 None => {},
1375                         }
1376                 }
1377                 0
1378         }
1379 }
1380
1381 impl ScoreUpdate for TestScorer {
1382         fn payment_path_failed(&mut self, _actual_path: &Path, _actual_short_channel_id: u64, _duration_since_epoch: Duration) {}
1383
1384         fn payment_path_successful(&mut self, _actual_path: &Path, _duration_since_epoch: Duration) {}
1385
1386         fn probe_failed(&mut self, _actual_path: &Path, _: u64, _duration_since_epoch: Duration) {}
1387
1388         fn probe_successful(&mut self, _actual_path: &Path, _duration_since_epoch: Duration) {}
1389
1390         fn time_passed(&mut self, _duration_since_epoch: Duration) {}
1391 }
1392
1393 impl Drop for TestScorer {
1394         fn drop(&mut self) {
1395                 #[cfg(feature = "std")] {
1396                         if std::thread::panicking() {
1397                                 return;
1398                         }
1399                 }
1400
1401                 if let Some(scorer_expectations) = self.scorer_expectations.borrow().as_ref() {
1402                         if !scorer_expectations.is_empty() {
1403                                 panic!("Unsatisfied scorer expectations: {:?}", scorer_expectations)
1404                         }
1405                 }
1406         }
1407 }
1408
1409 pub struct TestWalletSource {
1410         secret_key: SecretKey,
1411         utxos: RefCell<Vec<Utxo>>,
1412         secp: Secp256k1<bitcoin::secp256k1::All>,
1413 }
1414
1415 impl TestWalletSource {
1416         pub fn new(secret_key: SecretKey) -> Self {
1417                 Self {
1418                         secret_key,
1419                         utxos: RefCell::new(Vec::new()),
1420                         secp: Secp256k1::new(),
1421                 }
1422         }
1423
1424         pub fn add_utxo(&self, outpoint: bitcoin::OutPoint, value: u64) -> TxOut {
1425                 let public_key = bitcoin::PublicKey::new(self.secret_key.public_key(&self.secp));
1426                 let utxo = Utxo::new_p2pkh(outpoint, value, &public_key.pubkey_hash());
1427                 self.utxos.borrow_mut().push(utxo.clone());
1428                 utxo.output
1429         }
1430
1431         pub fn add_custom_utxo(&self, utxo: Utxo) -> TxOut {
1432                 let output = utxo.output.clone();
1433                 self.utxos.borrow_mut().push(utxo);
1434                 output
1435         }
1436
1437         pub fn remove_utxo(&self, outpoint: bitcoin::OutPoint) {
1438                 self.utxos.borrow_mut().retain(|utxo| utxo.outpoint != outpoint);
1439         }
1440 }
1441
1442 impl WalletSource for TestWalletSource {
1443         fn list_confirmed_utxos(&self) -> Result<Vec<Utxo>, ()> {
1444                 Ok(self.utxos.borrow().clone())
1445         }
1446
1447         fn get_change_script(&self) -> Result<ScriptBuf, ()> {
1448                 let public_key = bitcoin::PublicKey::new(self.secret_key.public_key(&self.secp));
1449                 Ok(ScriptBuf::new_p2pkh(&public_key.pubkey_hash()))
1450         }
1451
1452         fn sign_psbt(&self, psbt: PartiallySignedTransaction) -> Result<Transaction, ()> {
1453                 let mut tx = psbt.extract_tx();
1454                 let utxos = self.utxos.borrow();
1455                 for i in 0..tx.input.len() {
1456                         if let Some(utxo) = utxos.iter().find(|utxo| utxo.outpoint == tx.input[i].previous_output) {
1457                                 let sighash = SighashCache::new(&tx)
1458                                         .legacy_signature_hash(i, &utxo.output.script_pubkey, EcdsaSighashType::All as u32)
1459                                         .map_err(|_| ())?;
1460                                 let sig = self.secp.sign_ecdsa(&(*sighash.as_raw_hash()).into(), &self.secret_key);
1461                                 let bitcoin_sig = bitcoin::ecdsa::Signature { sig, hash_ty: EcdsaSighashType::All };
1462                                 tx.input[i].script_sig = Builder::new()
1463                                         .push_slice(&bitcoin_sig.serialize())
1464                                         .push_slice(&self.secret_key.public_key(&self.secp).serialize())
1465                                         .into_script();
1466                         }
1467                 }
1468                 Ok(tx)
1469         }
1470 }