X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Ffunctional_test_utils.rs;h=4dadd054ce219bef867e09f9ac01e91e4613665b;hb=9c9e5f896c967d459d18d0c592c0a7a9efb3df98;hp=db43c37fd5eb5b8d1dd299c22f836bf017db9f42;hpb=88db0b822134cdc6fd4db245e4baf3f295ca5a4a;p=rust-lightning diff --git a/lightning/src/ln/functional_test_utils.rs b/lightning/src/ln/functional_test_utils.rs index db43c37f..4dadd054 100644 --- a/lightning/src/ln/functional_test_utils.rs +++ b/lightning/src/ln/functional_test_utils.rs @@ -15,9 +15,9 @@ use crate::sign::EntropySource; use crate::chain::channelmonitor::ChannelMonitor; use crate::chain::transaction::OutPoint; use crate::events::{ClaimedHTLC, ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose, PaymentFailureReason}; -use crate::events::bump_transaction::{BumpTransactionEventHandler, Wallet, WalletSource}; +use crate::events::bump_transaction::{BumpTransactionEvent, BumpTransactionEventHandler, Wallet, WalletSource}; use crate::ln::{ChannelId, PaymentPreimage, PaymentHash, PaymentSecret}; -use crate::ln::channelmanager::{self, AChannelManager, ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, RecipientOnionFields, PaymentId, MIN_CLTV_EXPIRY_DELTA}; +use crate::ln::channelmanager::{AChannelManager, ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, RecipientOnionFields, PaymentId, MIN_CLTV_EXPIRY_DELTA}; use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate}; use crate::routing::router::{self, PaymentParameters, Route, RouteParameters}; use crate::ln::features::InitFeatures; @@ -30,6 +30,8 @@ use crate::util::test_utils::{panicking, TestChainMonitor, TestScorer, TestKeysI use crate::util::errors::APIError; use crate::util::config::{UserConfig, MaxDustHTLCExposure}; use crate::util::ser::{ReadableArgs, Writeable}; +#[cfg(test)] +use crate::util::logger::Logger; use bitcoin::blockdata::block::{Block, BlockHeader}; use bitcoin::blockdata::transaction::{Transaction, TxOut}; @@ -73,6 +75,20 @@ pub fn mine_transactions<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn: &[&Tra let height = node.best_block_info().1 + 1; confirm_transactions_at(node, txn, height); } +/// Mine a single block containing the given transaction without extra consistency checks which may +/// impact ChannelManager state. +pub fn mine_transaction_without_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) { + let height = node.best_block_info().1 + 1; + let mut block = Block { + header: BlockHeader { version: 0x20000000, prev_blockhash: node.best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: height, bits: 42, nonce: 42 }, + txdata: Vec::new(), + }; + 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 + block.txdata.push(Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() }); + } + block.txdata.push((*tx).clone()); + do_connect_block_without_consistency_checks(node, block, false); +} /// Mine the given transaction at the given height, mining blocks as required to build to that /// height /// @@ -211,16 +227,16 @@ pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32) -> assert!(depth >= 1); for i in 1..depth { let prev_blockhash = block.header.block_hash(); - do_connect_block(node, block, skip_intermediaries); + do_connect_block_with_consistency_checks(node, block, skip_intermediaries); block = create_dummy_block(prev_blockhash, height + i, Vec::new()); } let hash = block.header.block_hash(); - do_connect_block(node, block, false); + do_connect_block_with_consistency_checks(node, block, false); hash } pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block) { - do_connect_block(node, block.clone(), false); + do_connect_block_with_consistency_checks(node, block.clone(), false); } fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) { @@ -230,8 +246,14 @@ fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) { } } -fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) { +fn do_connect_block_with_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) { call_claimable_balances(node); + do_connect_block_without_consistency_checks(node, block, skip_intermediaries); + call_claimable_balances(node); + node.node.test_process_background_events(); +} + +fn do_connect_block_without_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) { let height = node.best_block_info().1 + 1; #[cfg(feature = "std")] { eprintln!("Connecting block using Block Connection Style: {:?}", *node.connect_style.borrow()); @@ -286,8 +308,6 @@ fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, sk } } } - call_claimable_balances(node); - node.node.test_process_background_events(); for tx in &block.txdata { for input in &tx.input { @@ -404,6 +424,10 @@ pub struct Node<'chan_man, 'node_cfg: 'chan_man, 'chan_mon_cfg: 'node_cfg> { &'chan_mon_cfg test_utils::TestLogger, >, } +#[cfg(feature = "std")] +impl<'a, 'b, 'c> std::panic::UnwindSafe for Node<'a, 'b, 'c> {} +#[cfg(feature = "std")] +impl<'a, 'b, 'c> std::panic::RefUnwindSafe for Node<'a, 'b, 'c> {} impl<'a, 'b, 'c> Node<'a, 'b, 'c> { pub fn best_block_hash(&self) -> BlockHash { self.blocks.lock().unwrap().last().unwrap().0.block_hash() @@ -414,6 +438,25 @@ impl<'a, 'b, 'c> Node<'a, 'b, 'c> { pub fn get_block_header(&self, height: u32) -> BlockHeader { self.blocks.lock().unwrap()[height as usize].0.header } + /// Changes the channel signer's availability for the specified peer and channel. + /// + /// When `available` is set to `true`, the channel signer will behave normally. When set to + /// `false`, the channel signer will act like an off-line remote signer and will return `Err` for + /// several of the signing methods. Currently, only `get_per_commitment_point` and + /// `release_commitment_secret` are affected by this setting. + #[cfg(test)] + pub fn set_channel_signer_available(&self, peer_id: &PublicKey, chan_id: &ChannelId, available: bool) { + let per_peer_state = self.node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(peer_id).unwrap().lock().unwrap(); + let signer = (|| { + match chan_lock.channel_by_id.get(chan_id) { + Some(phase) => phase.context().get_signer(), + None => panic!("Couldn't find a channel with id {}", chan_id), + } + })(); + log_debug!(self.logger, "Setting channel signer for {} as available={}", chan_id, available); + signer.as_ecdsa().unwrap().set_available(available); + } } /// If we need an unsafe pointer to a `Node` (ie to reference it in a thread @@ -560,7 +603,7 @@ impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> { let chain_source = test_utils::TestChainSource::new(Network::Testnet); let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister, &self.keys_manager); for deserialized_monitor in deserialized_monitors.drain(..) { - if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != ChannelMonitorUpdateStatus::Completed { + if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != Ok(ChannelMonitorUpdateStatus::Completed) { panic!(); } } @@ -643,6 +686,12 @@ pub fn get_err_msg(node: &Node, recipient: &PublicKey) -> msgs::ErrorMessage { assert_eq!(node_id, recipient); (*msg).clone() }, + MessageSendEvent::HandleError { + action: msgs::ErrorAction::DisconnectPeer { ref msg }, ref node_id + } => { + assert_eq!(node_id, recipient); + msg.as_ref().unwrap().clone() + }, _ => panic!("Unexpected event"), } } @@ -765,6 +814,18 @@ pub fn remove_first_msg_event_to_node(msg_node_id: &PublicKey, msg_events: &mut MessageSendEvent::SendOpenChannelV2 { node_id, .. } => { node_id == msg_node_id }, + MessageSendEvent::SendStfu { node_id, .. } => { + node_id == msg_node_id + }, + MessageSendEvent::SendSplice { node_id, .. } => { + node_id == msg_node_id + }, + MessageSendEvent::SendSpliceAck { node_id, .. } => { + node_id == msg_node_id + }, + MessageSendEvent::SendSpliceLocked { node_id, .. } => { + node_id == msg_node_id + }, MessageSendEvent::SendTxAddInput { node_id, .. } => { node_id == msg_node_id }, @@ -896,7 +957,8 @@ macro_rules! unwrap_send_err { pub fn check_added_monitors>(node: &H, count: usize) { if let Some(chain_monitor) = node.chain_monitor() { let mut added_monitors = chain_monitor.added_monitors.lock().unwrap(); - assert_eq!(added_monitors.len(), count); + let n = added_monitors.len(); + assert_eq!(n, count, "expected {} monitors to be added, not {}", count, n); added_monitors.clear(); } } @@ -959,7 +1021,7 @@ pub fn _reload_node<'a, 'b, 'c>(node: &'a Node<'a, 'b, 'c>, default_config: User for monitor in monitors_read.drain(..) { assert_eq!(node.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor), - ChannelMonitorUpdateStatus::Completed); + Ok(ChannelMonitorUpdateStatus::Completed)); check_added_monitors!(node, 1); } @@ -1076,7 +1138,7 @@ pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, r let initiator_channels = initiator.node.list_usable_channels().len(); let receiver_channels = receiver.node.list_usable_channels().len(); - initiator.node.create_channel(receiver.node.get_our_node_id(), 100_000, 10_001, 42, initiator_config).unwrap(); + initiator.node.create_channel(receiver.node.get_our_node_id(), 100_000, 10_001, 42, None, initiator_config).unwrap(); let open_channel = get_event_msg!(initiator, MessageSendEvent::SendOpenChannel, receiver.node.get_our_node_id()); receiver.node.handle_open_channel(&initiator.node.get_our_node_id(), &open_channel); @@ -1142,7 +1204,7 @@ pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, r } 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 { - let create_chan_id = node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap(); + let create_chan_id = node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None, None).unwrap(); let open_channel_msg = get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id()); assert_eq!(open_channel_msg.temporary_channel_id, create_chan_id); assert_eq!(node_a.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 42); @@ -1259,7 +1321,7 @@ pub fn create_announced_chan_between_nodes_with_value<'a, 'b, 'c: 'd, 'd>(nodes: pub fn create_unannounced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec>, a: usize, b: usize, channel_value: u64, push_msat: u64) -> (msgs::ChannelReady, Transaction) { let mut no_announce_cfg = test_default_channel_config(); no_announce_cfg.channel_handshake_config.announced_channel = false; - nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, Some(no_announce_cfg)).unwrap(); + nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, None, Some(no_announce_cfg)).unwrap(); let open_channel = get_event_msg!(nodes[a], MessageSendEvent::SendOpenChannel, nodes[b].node.get_our_node_id()); nodes[b].node.handle_open_channel(&nodes[a].node.get_our_node_id(), &open_channel); let accept_channel = get_event_msg!(nodes[b], MessageSendEvent::SendAcceptChannel, nodes[a].node.get_our_node_id()); @@ -1424,10 +1486,15 @@ pub fn check_closed_broadcast(node: &Node, num_channels: usize, with_error_msg: assert_eq!(msg.contents.flags & 2, 2); None }, - MessageSendEvent::HandleError { action: msgs::ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => { + MessageSendEvent::HandleError { action: msgs::ErrorAction::SendErrorMessage { msg }, node_id: _ } => { assert!(with_error_msg); // TODO: Check node_id - Some(msg.clone()) + Some(msg) + }, + MessageSendEvent::HandleError { action: msgs::ErrorAction::DisconnectPeer { msg }, node_id: _ } => { + assert!(with_error_msg); + // TODO: Check node_id + Some(msg.unwrap()) }, _ => panic!("Unexpected event"), } @@ -1445,27 +1512,61 @@ macro_rules! check_closed_broadcast { } } +#[derive(Default)] +pub struct ExpectedCloseEvent { + pub channel_capacity_sats: Option, + pub channel_id: Option, + pub counterparty_node_id: Option, + pub discard_funding: bool, + pub reason: Option, +} + +/// Check that multiple channel closing events have been issued. +pub fn check_closed_events(node: &Node, expected_close_events: &[ExpectedCloseEvent]) { + let closed_events_count = expected_close_events.len(); + let discard_events_count = expected_close_events.iter().filter(|e| e.discard_funding).count(); + let events = node.node.get_and_clear_pending_events(); + assert_eq!(events.len(), closed_events_count + discard_events_count, "{:?}", events); + for expected_event in expected_close_events { + assert!(events.iter().any(|e| matches!( + e, + Event::ChannelClosed { + channel_id, + reason, + counterparty_node_id, + channel_capacity_sats, + .. + } if ( + expected_event.channel_id.map(|expected| *channel_id == expected).unwrap_or(true) && + expected_event.reason.as_ref().map(|expected| reason == expected).unwrap_or(true) && + expected_event.counterparty_node_id.map(|expected| *counterparty_node_id == Some(expected)).unwrap_or(true) && + expected_event.channel_capacity_sats.map(|expected| *channel_capacity_sats == Some(expected)).unwrap_or(true) + ) + ))); + } + assert_eq!(events.iter().filter(|e| matches!( + e, + Event::DiscardFunding { .. }, + )).count(), discard_events_count); +} + /// Check that a channel's closing channel events has been issued pub fn check_closed_event(node: &Node, events_count: usize, expected_reason: ClosureReason, is_check_discard_funding: bool, expected_counterparty_node_ids: &[PublicKey], expected_channel_capacity: u64) { - let events = node.node.get_and_clear_pending_events(); - assert_eq!(events.len(), events_count, "{:?}", events); - let mut issues_discard_funding = false; - for (idx, event) in events.into_iter().enumerate() { - match event { - Event::ChannelClosed { ref reason, counterparty_node_id, - channel_capacity_sats, .. } => { - assert_eq!(*reason, expected_reason); - assert_eq!(counterparty_node_id.unwrap(), expected_counterparty_node_ids[idx]); - assert_eq!(channel_capacity_sats.unwrap(), expected_channel_capacity); - }, - Event::DiscardFunding { .. } => { - issues_discard_funding = true; - } - _ => panic!("Unexpected event"), - } - } - assert_eq!(is_check_discard_funding, issues_discard_funding); + let expected_events_count = if is_check_discard_funding { + 2 * expected_counterparty_node_ids.len() + } else { + expected_counterparty_node_ids.len() + }; + assert_eq!(events_count, expected_events_count); + let expected_close_events = expected_counterparty_node_ids.iter().map(|node_id| ExpectedCloseEvent { + channel_capacity_sats: Some(expected_channel_capacity), + channel_id: None, + counterparty_node_id: Some(*node_id), + discard_funding: is_check_discard_funding, + reason: Some(expected_reason.clone()), + }).collect::>(); + check_closed_events(node, expected_close_events.as_slice()); } /// Check that a channel's closing channel events has been issued @@ -1477,11 +1578,26 @@ macro_rules! check_closed_event { check_closed_event!($node, $events, $reason, false, $counterparty_node_ids, $channel_capacity); }; ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr, $counterparty_node_ids: expr, $channel_capacity: expr) => { - $crate::ln::functional_test_utils::check_closed_event(&$node, $events, $reason, + $crate::ln::functional_test_utils::check_closed_event(&$node, $events, $reason, $is_check_discard_funding, &$counterparty_node_ids, $channel_capacity); } } +pub fn handle_bump_htlc_event(node: &Node, count: usize) { + let events = node.chain_monitor.chain_monitor.get_and_clear_pending_events(); + assert_eq!(events.len(), count); + for event in events { + match event { + Event::BumpTransaction(bump_event) => { + if let BumpTransactionEvent::HTLCResolution { .. } = &bump_event {} + else { panic!(); } + node.bump_tx_handler.handle_event(&bump_event); + }, + _ => panic!(), + } + } +} + pub fn close_channel<'a, 'b, 'c>(outbound_node: &Node<'a, 'b, 'c>, inbound_node: &Node<'a, 'b, 'c>, channel_id: &ChannelId, funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) { 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) }; 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) }; @@ -1772,20 +1888,7 @@ pub fn do_commitment_signed_dance(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, ' check_added_monitors!(node_a, 1); // If this commitment signed dance was due to a claim, don't check for an RAA monitor update. - let got_claim = node_a.node.pending_events.lock().unwrap().iter().any(|(ev, action)| { - let matching_action = if let Some(channelmanager::EventCompletionAction::ReleaseRAAChannelMonitorUpdate - { channel_funding_outpoint, counterparty_node_id }) = action - { - if channel_funding_outpoint.to_channel_id() == commitment_signed.channel_id { - assert_eq!(*counterparty_node_id, node_b.node.get_our_node_id()); - true - } else { false } - } else { false }; - if matching_action { - if let Event::PaymentSent { .. } = ev {} else { panic!(); } - } - matching_action - }); + let got_claim = node_a.node.test_raa_monitor_updates_held(node_b.node.get_our_node_id(), commitment_signed.channel_id); if fail_backwards { assert!(!got_claim); } commitment_signed_dance!(node_a, node_b, (), fail_backwards, true, false, got_claim); @@ -1849,7 +1952,7 @@ pub fn get_route(send_node: &Node, route_params: &RouteParameters) -> Result>()), - send_node.logger, &scorer, &(), &random_seed_bytes + send_node.logger, &scorer, &Default::default(), &random_seed_bytes ) } @@ -1869,11 +1972,15 @@ macro_rules! get_route { macro_rules! get_route_and_payment_hash { ($send_node: expr, $recv_node: expr, $recv_value: expr) => {{ let payment_params = $crate::routing::router::PaymentParameters::from_node_id($recv_node.node.get_our_node_id(), TEST_FINAL_CLTV) - .with_bolt11_features($recv_node.node.invoice_features()).unwrap(); + .with_bolt11_features($recv_node.node.bolt11_invoice_features()).unwrap(); $crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value) }}; ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr) => {{ - let route_params = $crate::routing::router::RouteParameters::from_payment_params_and_value($payment_params, $recv_value); + $crate::get_route_and_payment_hash!($send_node, $recv_node, $payment_params, $recv_value, None) + }}; + ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr, $max_total_routing_fee_msat: expr) => {{ + let mut route_params = $crate::routing::router::RouteParameters::from_payment_params_and_value($payment_params, $recv_value); + route_params.max_total_routing_fee_msat = $max_total_routing_fee_msat; let (payment_preimage, payment_hash, payment_secret) = $crate::ln::functional_test_utils::get_payment_preimage_hash(&$recv_node, Some($recv_value), None); let route = $crate::ln::functional_test_utils::get_route(&$send_node, &route_params); @@ -2000,29 +2107,38 @@ macro_rules! expect_payment_path_successful { } } +pub fn expect_payment_forwarded>( + event: Event, node: &H, prev_node: &H, next_node: &H, expected_fee: Option, + upstream_force_closed: bool, downstream_force_closed: bool +) { + match event { + Event::PaymentForwarded { + fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id, + outbound_amount_forwarded_msat: _ + } => { + assert_eq!(fee_earned_msat, expected_fee); + if !upstream_force_closed { + // Is the event prev_channel_id in one of the channels between the two nodes? + 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())); + } + // We check for force closures since a force closed channel is removed from the + // node's channel list + if !downstream_force_closed { + 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())); + } + assert_eq!(claim_from_onchain_tx, downstream_force_closed); + }, + _ => panic!("Unexpected event"), + } +} + macro_rules! expect_payment_forwarded { ($node: expr, $prev_node: expr, $next_node: expr, $expected_fee: expr, $upstream_force_closed: expr, $downstream_force_closed: expr) => { - let events = $node.node.get_and_clear_pending_events(); + let mut events = $node.node.get_and_clear_pending_events(); assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentForwarded { - fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id, - outbound_amount_forwarded_msat: _ - } => { - assert_eq!(fee_earned_msat, $expected_fee); - if fee_earned_msat.is_some() { - // Is the event prev_channel_id in one of the channels between the two nodes? - assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $prev_node.node.get_our_node_id() && x.channel_id == prev_channel_id.unwrap())); - } - // We check for force closures since a force closed channel is removed from the - // node's channel list - if !$downstream_force_closed { - 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())); - } - assert_eq!(claim_from_onchain_tx, $downstream_force_closed); - }, - _ => panic!("Unexpected event"), - } + $crate::ln::functional_test_utils::expect_payment_forwarded( + events.pop().unwrap(), &$node, &$prev_node, &$next_node, $expected_fee, + $upstream_force_closed, $downstream_force_closed); } } @@ -2037,12 +2153,13 @@ macro_rules! expect_channel_shutdown_state { } #[cfg(any(test, ldk_bench, feature = "_test_utils"))] -pub fn expect_channel_pending_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, expected_counterparty_node_id: &PublicKey) { +pub fn expect_channel_pending_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, expected_counterparty_node_id: &PublicKey) -> ChannelId { let events = node.node.get_and_clear_pending_events(); assert_eq!(events.len(), 1); - match events[0] { - crate::events::Event::ChannelPending { ref counterparty_node_id, .. } => { + match &events[0] { + crate::events::Event::ChannelPending { channel_id, counterparty_node_id, .. } => { assert_eq!(*expected_counterparty_node_id, *counterparty_node_id); + *channel_id }, _ => panic!("Unexpected event"), } @@ -2060,6 +2177,26 @@ pub fn expect_channel_ready_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, ex } } +#[cfg(any(test, feature = "_test_utils"))] +pub fn expect_probe_successful_events(node: &Node, mut probe_results: Vec<(PaymentHash, PaymentId)>) { + let mut events = node.node.get_and_clear_pending_events(); + + for event in events.drain(..) { + match event { + Event::ProbeSuccessful { payment_hash: ev_ph, payment_id: ev_pid, ..} => { + let result_idx = probe_results.iter().position(|(payment_hash, payment_id)| *payment_hash == ev_ph && *payment_id == ev_pid); + assert!(result_idx.is_some()); + + probe_results.remove(result_idx.unwrap()); + }, + _ => panic!(), + } + }; + + // Ensure that we received a ProbeSuccessful event for each probe result. + assert!(probe_results.is_empty()); +} + pub struct PaymentFailedConditions<'a> { pub(crate) expected_htlc_error_data: Option<(u16, &'a [u8])>, pub(crate) expected_blamed_scid: Option, @@ -2197,21 +2334,41 @@ pub fn send_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, payment_id } -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, ev: MessageSendEvent, payment_claimable_expected: bool, clear_recipient_events: bool, expected_preimage: Option) -> Option { +fn fail_payment_along_path<'a, 'b, 'c>(expected_path: &[&Node<'a, 'b, 'c>]) { + let origin_node_id = expected_path[0].node.get_our_node_id(); + + // iterate from the receiving node to the origin node and handle update fail htlc. + for (&node, &prev_node) in expected_path.iter().rev().zip(expected_path.iter().rev().skip(1)) { + let updates = get_htlc_update_msgs!(node, prev_node.node.get_our_node_id()); + prev_node.node.handle_update_fail_htlc(&node.node.get_our_node_id(), &updates.update_fail_htlcs[0]); + check_added_monitors!(prev_node, 0); + + let is_first_hop = origin_node_id == prev_node.node.get_our_node_id(); + // We do not want to fail backwards on the first hop. All other hops should fail backwards. + commitment_signed_dance!(prev_node, node, updates.commitment_signed, !is_first_hop); + } +} + +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, ev: MessageSendEvent, payment_claimable_expected: bool, clear_recipient_events: bool, expected_preimage: Option, is_probe: bool) -> Option { let mut payment_event = SendEvent::from_event(ev); let mut prev_node = origin_node; let mut event = None; for (idx, &node) in expected_path.iter().enumerate() { + let is_last_hop = idx == expected_path.len() - 1; assert_eq!(node.node.get_our_node_id(), payment_event.node_id); node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]); check_added_monitors!(node, 0); - commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false); - expect_pending_htlcs_forwardable!(node); + if is_last_hop && is_probe { + commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, true, true); + } else { + commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false); + expect_pending_htlcs_forwardable!(node); + } - if idx == expected_path.len() - 1 && clear_recipient_events { + if is_last_hop && clear_recipient_events { let events_2 = node.node.get_and_clear_pending_events(); if payment_claimable_expected { assert_eq!(events_2.len(), 1); @@ -2245,7 +2402,7 @@ pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_p } else { assert!(events_2.is_empty()); } - } else if idx != expected_path.len() - 1 { + } else if !is_last_hop { let mut events_2 = node.node.get_and_clear_pending_msg_events(); assert_eq!(events_2.len(), 1); check_added_monitors!(node, 1); @@ -2259,16 +2416,33 @@ pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_p } 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, ev: MessageSendEvent, payment_claimable_expected: bool, expected_preimage: Option) -> Option { - do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_claimable_expected, true, expected_preimage) + do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_claimable_expected, true, expected_preimage, false) +} + +pub fn send_probe_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]]) { + let mut events = origin_node.node.get_and_clear_pending_msg_events(); + assert_eq!(events.len(), expected_route.len()); + + check_added_monitors!(origin_node, expected_route.len()); + + for path in expected_route.iter() { + let ev = remove_first_msg_event_to_node(&path[0].node.get_our_node_id(), &mut events); + + do_pass_along_path(origin_node, path, 0, PaymentHash([0_u8; 32]), None, ev, false, false, None, true); + let nodes_to_fail_payment: Vec<_> = vec![origin_node].into_iter().chain(path.iter().cloned()).collect(); + + fail_payment_along_path(nodes_to_fail_payment.as_slice()); + } } 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) { let mut events = origin_node.node.get_and_clear_pending_msg_events(); assert_eq!(events.len(), expected_route.len()); + for (path_idx, expected_path) in expected_route.iter().enumerate() { let ev = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &mut events); // Once we've gotten through all the HTLCs, the last one should result in a - // PaymentClaimable (but each previous one should not!), . + // PaymentClaimable (but each previous one should not!). let expect_payment = path_idx == expected_route.len() - 1; pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), Some(our_payment_secret), ev, expect_payment, None); } @@ -2399,7 +2573,7 @@ pub fn pass_claimed_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, ' } }; if $idx == 1 { fee += expected_extra_fees[i]; } - expect_payment_forwarded!($node, $next_node, $prev_node, Some(fee as u64), false, false); + expect_payment_forwarded!(*$node, $next_node, $prev_node, Some(fee as u64), false, false); expected_total_fee_msat += fee as u64; check_added_monitors!($node, 1); let new_next_msgs = if $new_msgs { @@ -2467,9 +2641,9 @@ pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: pub const TEST_FINAL_CLTV: u32 = 70; -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) { +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, PaymentId) { let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV) - .with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap(); + .with_bolt11_features(expected_route.last().unwrap().node.bolt11_invoice_features()).unwrap(); let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value); let route = get_route(origin_node, &route_params).unwrap(); assert_eq!(route.paths.len(), 1); @@ -2479,12 +2653,12 @@ pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: } let res = send_along_route(origin_node, route, expected_route, recv_value); - (res.0, res.1, res.2) + (res.0, res.1, res.2, res.3) } pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) { let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV) - .with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap(); + .with_bolt11_features(expected_route.last().unwrap().node.bolt11_invoice_features()).unwrap(); let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value); let network_graph = origin_node.network_graph.read_only(); let scorer = test_utils::TestScorer::new(); @@ -2492,7 +2666,7 @@ pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_rou let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet); let random_seed_bytes = keys_manager.get_secure_random_bytes(); let route = router::get_route(&origin_node.node.get_our_node_id(), &route_params, &network_graph, - None, origin_node.logger, &scorer, &(), &random_seed_bytes).unwrap(); + None, origin_node.logger, &scorer, &Default::default(), &random_seed_bytes).unwrap(); assert_eq!(route.paths.len(), 1); assert_eq!(route.paths[0].hops.len(), expected_route.len()); for (node, hop) in expected_route.iter().zip(route.paths[0].hops.iter()) { @@ -2506,7 +2680,7 @@ pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_rou assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept"))); } -pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) { +pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret, PaymentId) { let res = route_payment(&origin, expected_route, recv_value); claim_payment(&origin, expected_route, res.0); res @@ -2758,7 +2932,8 @@ pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec(nodes: &Vec { + assert_eq!(node_id, nodes[b].node.get_our_node_id()); + assert_eq!(msg.as_ref().unwrap().data, expected_error); + if needs_err_handle { + nodes[b].node.handle_error(&nodes[a].node.get_our_node_id(), msg.as_ref().unwrap()); + } + }, _ => panic!("Unexpected event"), } @@ -2900,6 +3082,10 @@ pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec { + assert_eq!(node_id, nodes[a].node.get_our_node_id()); + assert_eq!(msg.as_ref().unwrap().data, expected_error); + }, _ => panic!("Unexpected event"), } } @@ -3030,7 +3216,11 @@ pub struct ReconnectArgs<'a, 'b, 'c, 'd> { pub node_a: &'a Node<'b, 'c, 'd>, pub node_b: &'a Node<'b, 'c, 'd>, pub send_channel_ready: (bool, bool), - pub pending_htlc_adds: (i64, i64), + pub pending_responding_commitment_signed: (bool, bool), + /// Indicates that the pending responding commitment signed will be a dup for the recipient, + /// and no monitor update is expected + pub pending_responding_commitment_signed_dup_monitor: (bool, bool), + pub pending_htlc_adds: (usize, usize), pub pending_htlc_claims: (usize, usize), pub pending_htlc_fails: (usize, usize), pub pending_cell_htlc_claims: (usize, usize), @@ -3044,6 +3234,8 @@ impl<'a, 'b, 'c, 'd> ReconnectArgs<'a, 'b, 'c, 'd> { node_a, node_b, send_channel_ready: (false, false), + pending_responding_commitment_signed: (false, false), + pending_responding_commitment_signed_dup_monitor: (false, false), pending_htlc_adds: (0, 0), pending_htlc_claims: (0, 0), pending_htlc_fails: (0, 0), @@ -3059,7 +3251,8 @@ impl<'a, 'b, 'c, 'd> ReconnectArgs<'a, 'b, 'c, 'd> { pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { let ReconnectArgs { node_a, node_b, send_channel_ready, pending_htlc_adds, pending_htlc_claims, pending_htlc_fails, - pending_cell_htlc_claims, pending_cell_htlc_fails, pending_raa + pending_cell_htlc_claims, pending_cell_htlc_fails, pending_raa, + pending_responding_commitment_signed, pending_responding_commitment_signed_dup_monitor, } = args; node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: node_b.node.init_features(), networks: None, remote_network_address: None @@ -3074,24 +3267,28 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { // If a expects a channel_ready, it better not think it has received a revoke_and_ack // from b for reestablish in reestablish_1.iter() { - assert_eq!(reestablish.next_remote_commitment_number, 0); + let n = reestablish.next_remote_commitment_number; + assert_eq!(n, 0, "expected a->b next_remote_commitment_number to be 0, got {}", n); } } if send_channel_ready.1 { // If b expects a channel_ready, it better not think it has received a revoke_and_ack // from a for reestablish in reestablish_2.iter() { - assert_eq!(reestablish.next_remote_commitment_number, 0); + let n = reestablish.next_remote_commitment_number; + assert_eq!(n, 0, "expected b->a next_remote_commitment_number to be 0, got {}", n); } } if send_channel_ready.0 || send_channel_ready.1 { // If we expect any channel_ready's, both sides better have set // next_holder_commitment_number to 1 for reestablish in reestablish_1.iter() { - assert_eq!(reestablish.next_local_commitment_number, 1); + let n = reestablish.next_local_commitment_number; + assert_eq!(n, 1, "expected a->b next_local_commitment_number to be 1, got {}", n); } for reestablish in reestablish_2.iter() { - assert_eq!(reestablish.next_local_commitment_number, 1); + let n = reestablish.next_local_commitment_number; + assert_eq!(n, 1, "expected b->a next_local_commitment_number to be 1, got {}", n); } } @@ -3144,13 +3341,12 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { } else { assert!(chan_msgs.1.is_none()); } - 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 { + 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 || + pending_responding_commitment_signed.0 + { let commitment_update = chan_msgs.2.unwrap(); - if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed - assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize); - } else { - assert!(commitment_update.update_add_htlcs.is_empty()); - } + assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0); assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0); assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.0 + pending_cell_htlc_fails.0); assert!(commitment_update.update_fail_malformed_htlcs.is_empty()); @@ -3164,7 +3360,7 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail); } - if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed + if !pending_responding_commitment_signed.0 { commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false); } else { node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed); @@ -3173,7 +3369,7 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { // No commitment_signed so get_event_msg's assert(len == 1) passes node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack); assert!(node_b.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(node_b, 1); + check_added_monitors!(node_b, if pending_responding_commitment_signed_dup_monitor.0 { 0 } else { 1 }); } } else { assert!(chan_msgs.2.is_none()); @@ -3203,11 +3399,12 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { } else { assert!(chan_msgs.1.is_none()); } - 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 { + 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 || + pending_responding_commitment_signed.1 + { let commitment_update = chan_msgs.2.unwrap(); - if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed - assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize); - } + assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1); assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.1 + pending_cell_htlc_claims.1); assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.1 + pending_cell_htlc_fails.1); assert!(commitment_update.update_fail_malformed_htlcs.is_empty()); @@ -3221,7 +3418,7 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail); } - if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed + if !pending_responding_commitment_signed.1 { commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false); } else { node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed); @@ -3230,10 +3427,84 @@ pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) { // No commitment_signed so get_event_msg's assert(len == 1) passes node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack); assert!(node_a.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(node_a, 1); + check_added_monitors!(node_a, if pending_responding_commitment_signed_dup_monitor.1 { 0 } else { 1 }); } } else { assert!(chan_msgs.2.is_none()); } } } + +/// Initiates channel opening and creates a single batch funding transaction. +/// This will go through the open_channel / accept_channel flow, and return the batch funding +/// transaction with corresponding funding_created messages. +pub fn create_batch_channel_funding<'a, 'b, 'c>( + funding_node: &Node<'a, 'b, 'c>, + params: &[(&Node<'a, 'b, 'c>, u64, u64, u128, Option)], +) -> (Transaction, Vec) { + let mut tx_outs = Vec::new(); + let mut temp_chan_ids = Vec::new(); + let mut funding_created_msgs = Vec::new(); + + for (other_node, channel_value_satoshis, push_msat, user_channel_id, override_config) in params { + // Initialize channel opening. + let temp_chan_id = funding_node.node.create_channel( + other_node.node.get_our_node_id(), *channel_value_satoshis, *push_msat, *user_channel_id, + None, + *override_config, + ).unwrap(); + let open_channel_msg = get_event_msg!(funding_node, MessageSendEvent::SendOpenChannel, other_node.node.get_our_node_id()); + other_node.node.handle_open_channel(&funding_node.node.get_our_node_id(), &open_channel_msg); + let accept_channel_msg = get_event_msg!(other_node, MessageSendEvent::SendAcceptChannel, funding_node.node.get_our_node_id()); + funding_node.node.handle_accept_channel(&other_node.node.get_our_node_id(), &accept_channel_msg); + + // Create the corresponding funding output. + let events = funding_node.node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + match events[0] { + Event::FundingGenerationReady { + ref temporary_channel_id, + ref counterparty_node_id, + channel_value_satoshis: ref event_channel_value_satoshis, + ref output_script, + user_channel_id: ref event_user_channel_id + } => { + assert_eq!(temporary_channel_id, &temp_chan_id); + assert_eq!(counterparty_node_id, &other_node.node.get_our_node_id()); + assert_eq!(channel_value_satoshis, event_channel_value_satoshis); + assert_eq!(user_channel_id, event_user_channel_id); + tx_outs.push(TxOut { + value: *channel_value_satoshis, script_pubkey: output_script.clone(), + }); + }, + _ => panic!("Unexpected event"), + }; + temp_chan_ids.push((temp_chan_id, other_node.node.get_our_node_id())); + } + + // Compose the batch funding transaction and give it to the ChannelManager. + let tx = Transaction { + version: 2, + lock_time: PackedLockTime::ZERO, + input: Vec::new(), + output: tx_outs, + }; + assert!(funding_node.node.batch_funding_transaction_generated( + temp_chan_ids.iter().map(|(a, b)| (a, b)).collect::>().as_slice(), + tx.clone(), + ).is_ok()); + check_added_monitors!(funding_node, 0); + let events = funding_node.node.get_and_clear_pending_msg_events(); + assert_eq!(events.len(), params.len()); + for (other_node, ..) in params { + let funding_created = events + .iter() + .find_map(|event| match event { + MessageSendEvent::SendFundingCreated { node_id, msg } if node_id == &other_node.node.get_our_node_id() => Some(msg.clone()), + _ => None, + }) + .unwrap(); + funding_created_msgs.push(funding_created); + } + return (tx, funding_created_msgs); +}