+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_hints_has_htlc_min_max_values() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(3);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
+ create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 100000, 10001);
+
+ let payment_amt = 20_000;
+ let (payment_hash, _payment_secret) = nodes[1].node.create_inbound_payment(Some(payment_amt), 3600, None).unwrap();
+ let route_hints = vec![
+ nodes[1].node.get_phantom_route_hints(),
+ nodes[2].node.get_phantom_route_hints(),
+ ];
+
+ let invoice = crate::utils::create_phantom_invoice::<&test_utils::TestKeysInterface,
+ &test_utils::TestKeysInterface, &test_utils::TestLogger>(Some(payment_amt), Some(payment_hash),
+ "test".to_string(), 3600, route_hints, nodes[1].keys_manager, nodes[1].keys_manager,
+ nodes[1].logger, Currency::BitcoinTestnet, None, Duration::from_secs(1234567)).unwrap();
+
+ let chan_0_1 = &nodes[1].node.list_usable_channels()[0];
+ assert_eq!(invoice.route_hints()[0].0[0].htlc_minimum_msat, chan_0_1.inbound_htlc_minimum_msat);
+ assert_eq!(invoice.route_hints()[0].0[0].htlc_maximum_msat, chan_0_1.inbound_htlc_maximum_msat);
+
+ let chan_0_2 = &nodes[2].node.list_usable_channels()[0];
+ assert_eq!(invoice.route_hints()[1].0[0].htlc_minimum_msat, chan_0_2.inbound_htlc_minimum_msat);
+ assert_eq!(invoice.route_hints()[1].0[0].htlc_maximum_msat, chan_0_2.inbound_htlc_maximum_msat);
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn create_phantom_invoice_with_description_hash() {
+ let chanmon_cfgs = create_chanmon_cfgs(3);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let payment_amt = 20_000;
+ let route_hints = vec![
+ nodes[1].node.get_phantom_route_hints(),
+ nodes[2].node.get_phantom_route_hints(),
+ ];
+
+ let description_hash = crate::Sha256(Hash::hash("Description hash phantom invoice".as_bytes()));
+ let non_default_invoice_expiry_secs = 4200;
+ let invoice = crate::utils::create_phantom_invoice_with_description_hash::<
+ &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestLogger,
+ >(
+ Some(payment_amt), None, non_default_invoice_expiry_secs, description_hash,
+ route_hints, nodes[1].keys_manager, nodes[1].keys_manager, nodes[1].logger,
+ Currency::BitcoinTestnet, None, Duration::from_secs(1234567),
+ )
+ .unwrap();
+ assert_eq!(invoice.amount_pico_btc(), Some(200_000));
+ assert_eq!(invoice.min_final_cltv_expiry_delta(), MIN_FINAL_CLTV_EXPIRY_DELTA as u64);
+ assert_eq!(invoice.expiry_time(), Duration::from_secs(non_default_invoice_expiry_secs.into()));
+ assert_eq!(invoice.description(), InvoiceDescription::Hash(&crate::Sha256(Sha256::hash("Description hash phantom invoice".as_bytes()))));
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn create_phantom_invoice_with_custom_payment_hash_and_custom_min_final_cltv_delta() {
+ let chanmon_cfgs = create_chanmon_cfgs(3);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let payment_amt = 20_000;
+ let route_hints = vec![
+ nodes[1].node.get_phantom_route_hints(),
+ nodes[2].node.get_phantom_route_hints(),
+ ];
+ let user_payment_preimage = PaymentPreimage([1; 32]);
+ let payment_hash = Some(PaymentHash(Sha256::hash(&user_payment_preimage.0[..]).into_inner()));
+ let non_default_invoice_expiry_secs = 4200;
+ let min_final_cltv_expiry_delta = Some(100);
+ let duration_since_epoch = Duration::from_secs(1234567);
+ let invoice = crate::utils::create_phantom_invoice::<&test_utils::TestKeysInterface,
+ &test_utils::TestKeysInterface, &test_utils::TestLogger>(Some(payment_amt), payment_hash,
+ "".to_string(), non_default_invoice_expiry_secs, route_hints, nodes[1].keys_manager, nodes[1].keys_manager,
+ nodes[1].logger, Currency::BitcoinTestnet, min_final_cltv_expiry_delta, duration_since_epoch).unwrap();
+ assert_eq!(invoice.amount_pico_btc(), Some(200_000));
+ assert_eq!(invoice.min_final_cltv_expiry_delta(), (min_final_cltv_expiry_delta.unwrap() + 3) as u64);
+ assert_eq!(invoice.expiry_time(), Duration::from_secs(non_default_invoice_expiry_secs.into()));
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_hints_includes_single_channels_to_participating_nodes() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(3);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let chan_0_1 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
+ let chan_0_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 100000, 10001);
+
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_0_1.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(10_000),
+ &nodes[1],
+ vec![&nodes[1], &nodes[2],],
+ scid_aliases,
+ false
+ );
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_hints_includes_one_channel_of_each_counterparty_nodes_per_participating_node() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(4);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[3].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ let chan_0_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 100000, 10001);
+ let chan_0_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 3, 1000000, 10001);
+ let chan_1_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 3, 3_000_000, 10005);
+
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_1_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(10_000),
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases,
+ false
+ );
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_forwarding_info_not_assigned_channel_excluded_from_hints() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(4);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[3].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ let chan_0_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 100000, 10001);
+ let chan_0_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 3, 1000000, 10001);
+
+ // Create an unannonced channel between `nodes[1]` and `nodes[3]`, for which the
+ // `msgs::ChannelUpdate` is never handled for the node(s). As the `msgs::ChannelUpdate`
+ // is never handled, the `channel.counterparty.forwarding_info` is never assigned.
+ let mut private_chan_cfg = UserConfig::default();
+ private_chan_cfg.channel_handshake_config.announced_channel = false;
+ let temporary_channel_id = nodes[1].node.create_channel(nodes[3].node.get_our_node_id(), 1_000_000, 500_000_000, 42, Some(private_chan_cfg)).unwrap();
+ let open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[3].node.get_our_node_id());
+ nodes[3].node.handle_open_channel(&nodes[1].node.get_our_node_id(), &open_channel);
+ let accept_channel = get_event_msg!(nodes[3], MessageSendEvent::SendAcceptChannel, nodes[1].node.get_our_node_id());
+ nodes[1].node.handle_accept_channel(&nodes[3].node.get_our_node_id(), &accept_channel);
+
+ let tx = sign_funding_transaction(&nodes[1], &nodes[3], 1_000_000, temporary_channel_id);
+
+ let conf_height = core::cmp::max(nodes[1].best_block_info().1 + 1, nodes[3].best_block_info().1 + 1);
+ confirm_transaction_at(&nodes[1], &tx, conf_height);
+ connect_blocks(&nodes[1], CHAN_CONFIRM_DEPTH - 1);
+ confirm_transaction_at(&nodes[3], &tx, conf_height);
+ connect_blocks(&nodes[3], CHAN_CONFIRM_DEPTH - 1);
+ let as_channel_ready = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReady, nodes[3].node.get_our_node_id());
+ nodes[1].node.handle_channel_ready(&nodes[3].node.get_our_node_id(), &get_event_msg!(nodes[3], MessageSendEvent::SendChannelReady, nodes[1].node.get_our_node_id()));
+ get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[3].node.get_our_node_id());
+ nodes[3].node.handle_channel_ready(&nodes[1].node.get_our_node_id(), &as_channel_ready);
+ get_event_msg!(nodes[3], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
+ expect_channel_ready_event(&nodes[1], &nodes[3].node.get_our_node_id());
+ expect_channel_ready_event(&nodes[3], &nodes[1].node.get_our_node_id());
+
+ // As `msgs::ChannelUpdate` was never handled for the participating node(s) of the third
+ // channel, the channel will never be assigned any `counterparty.forwarding_info`.
+ // Therefore only `chan_0_3` should be included in the hints for `nodes[3]`.
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(10_000),
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases,
+ false
+ );
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_with_only_public_channels_hints_includes_only_phantom_route() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(3);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let chan_0_1 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
+
+ let chan_2_0 = create_announced_chan_between_nodes_with_value(&nodes, 2, 0, 100000, 10001);
+ nodes[2].node.handle_channel_update(&nodes[0].node.get_our_node_id(), &chan_2_0.1);
+ nodes[0].node.handle_channel_update(&nodes[2].node.get_our_node_id(), &chan_2_0.0);
+
+ // Hints should include `chan_0_1` from as `nodes[1]` only have private channels, but not
+ // `chan_0_2` as `nodes[2]` only has public channels.
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_0_1.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(10_000),
+ &nodes[1],
+ vec![&nodes[1], &nodes[2],],
+ scid_aliases,
+ true
+ );
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_with_mixed_public_and_private_channel_hints_includes_only_phantom_route() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(4);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ let chan_0_2 = create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 100000, 10001);
+ nodes[0].node.handle_channel_update(&nodes[2].node.get_our_node_id(), &chan_0_2.1);
+ nodes[2].node.handle_channel_update(&nodes[0].node.get_our_node_id(), &chan_0_2.0);
+ let _chan_1_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 2, 100000, 10001);
+
+ let chan_0_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 3, 100000, 10001);
+
+ // Hints should include `chan_0_3` from as `nodes[3]` only have private channels, and no
+ // channels for `nodes[2]` as it contains a mix of public and private channels.
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(10_000),
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases,
+ true
+ );
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_hints_has_only_lowest_inbound_channel_above_minimum() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(3);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let _chan_0_1_below_amt = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, 0);
+ let _chan_0_1_above_amt_high_inbound = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 500_000, 0);
+ let chan_0_1_above_amt_low_inbound = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 180_000, 0);
+ let chan_0_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 100000, 10001);
+
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_0_1_above_amt_low_inbound.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(100_000_000),
+ &nodes[1],
+ vec![&nodes[1], &nodes[2],],
+ scid_aliases,
+ false
+ );
+ }
+
+ #[test]
+ #[cfg(feature = "std")]
+ fn test_multi_node_channels_inbound_capacity_lower_than_invoice_amt_filtering() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(4);
+ let seed_1 = [42u8; 32];
+ let seed_2 = [43u8; 32];
+ let cross_node_seed = [44u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ let chan_0_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 1_000_000, 0);
+ let chan_0_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 3, 100_000, 0);
+ let chan_1_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 3, 200_000, 0);
+
+ // Since the invoice 1 msat above chan_0_3's inbound capacity, it should be filtered out.
+ let mut scid_aliases_99_000_001_msat = HashSet::new();
+ scid_aliases_99_000_001_msat.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+ scid_aliases_99_000_001_msat.insert(chan_1_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(99_000_001),
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases_99_000_001_msat,
+ false
+ );
+
+ // Since the invoice is exactly at chan_0_3's inbound capacity, it should be included.
+ let mut scid_aliases_99_000_000_msat = HashSet::new();
+ scid_aliases_99_000_000_msat.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+ scid_aliases_99_000_000_msat.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+ scid_aliases_99_000_000_msat.insert(chan_1_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(99_000_000),
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases_99_000_000_msat,
+ false
+ );
+
+ // Since the invoice is above all of `nodes[2]` channels' inbound capacity, all of
+ // `nodes[2]` them should be included.
+ let mut scid_aliases_300_000_000_msat = HashSet::new();
+ scid_aliases_300_000_000_msat.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+ scid_aliases_300_000_000_msat.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+ scid_aliases_300_000_000_msat.insert(chan_1_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(300_000_000),
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases_300_000_000_msat,
+ false
+ );
+
+ // Since the no specified amount, all channels should included.
+ let mut scid_aliases_no_specified_amount = HashSet::new();
+ scid_aliases_no_specified_amount.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+ scid_aliases_no_specified_amount.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+ scid_aliases_no_specified_amount.insert(chan_1_3.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ None,
+ &nodes[2],
+ vec![&nodes[2], &nodes[3],],
+ scid_aliases_no_specified_amount,
+ false
+ );
+ }
+
+ #[test]
+ fn test_multi_node_hints_limited_to_3() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(6);
+ let seed_1 = [42 as u8; 32];
+ let seed_2 = [43 as u8; 32];
+ let seed_3 = [44 as u8; 32];
+ let seed_4 = [45 as u8; 32];
+ let cross_node_seed = [44 as u8; 32];
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[3].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ chanmon_cfgs[4].keys_manager.backing = PhantomKeysManager::new(&seed_3, 43, 44, &cross_node_seed);
+ chanmon_cfgs[5].keys_manager.backing = PhantomKeysManager::new(&seed_4, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
+ let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
+
+ // Setup each phantom node with two channels from distinct peers.
+ let chan_0_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 2, 10_000, 0);
+ let chan_1_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 2, 20_000, 0);
+ let chan_0_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 3, 20_000, 0);
+ let _chan_1_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 3, 10_000, 0);
+ let chan_0_4 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 4, 20_000, 0);
+ let _chan_1_4 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000, 0);
+ let _chan_0_5 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 5, 20_000, 0);
+ let _chan_1_5 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000, 0);
+
+ // Set invoice amount > all channels inbound so that every one is eligible for inclusion
+ // and hints will be sorted by largest inbound capacity.
+ let invoice_amt = Some(100_000_000);
+
+ // With 4 phantom nodes, assert that we include 1 hint per node, up to 3 nodes.
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_1_2.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_4.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ invoice_amt,
+ &nodes[3],
+ vec![&nodes[2], &nodes[3], &nodes[4], &nodes[5]],
+ scid_aliases,
+ false,
+ );
+
+ // With 2 phantom nodes, assert that we include no more than 3 hints.
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_1_2.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_3.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_2.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ invoice_amt,
+ &nodes[3],
+ vec![&nodes[2], &nodes[3]],
+ scid_aliases,
+ false,
+ );
+ }
+
+ #[test]
+ fn test_multi_node_hints_at_least_3() {
+ let mut chanmon_cfgs = create_chanmon_cfgs(5);
+ let seed_1 = [42 as u8; 32];
+ let seed_2 = [43 as u8; 32];
+ let cross_node_seed = [44 as u8; 32];
+ chanmon_cfgs[1].keys_manager.backing = PhantomKeysManager::new(&seed_1, 43, 44, &cross_node_seed);
+ chanmon_cfgs[2].keys_manager.backing = PhantomKeysManager::new(&seed_2, 43, 44, &cross_node_seed);
+ let node_cfgs = create_node_cfgs(5, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(5, &node_cfgs, &[None, None, None, None, None]);
+ let nodes = create_network(5, &node_cfgs, &node_chanmgrs);
+
+ let _chan_0_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 3, 10_000, 0);
+ let chan_1_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 3, 20_000, 0);
+ let chan_2_3 = create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 30_000, 0);
+ let chan_0_4 = create_unannounced_chan_between_nodes_with_value(&nodes, 0, 4, 10_000, 0);
+
+ // Since the invoice amount is above all channels inbound, all four are eligible. Test that
+ // we still include 3 hints from 2 distinct nodes sorted by inbound.
+ let mut scid_aliases = HashSet::new();
+ scid_aliases.insert(chan_1_3.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_2_3.0.short_channel_id_alias.unwrap());
+ scid_aliases.insert(chan_0_4.0.short_channel_id_alias.unwrap());
+
+ match_multi_node_invoice_routes(
+ Some(100_000_000),
+ &nodes[3],
+ vec![&nodes[3], &nodes[4],],
+ scid_aliases,
+ false,
+ );
+ }
+
+ fn match_multi_node_invoice_routes<'a, 'b: 'a, 'c: 'b>(
+ invoice_amt: Option<u64>,
+ invoice_node: &Node<'a, 'b, 'c>,
+ network_multi_nodes: Vec<&Node<'a, 'b, 'c>>,
+ mut chan_ids_to_match: HashSet<u64>,
+ nodes_contains_public_channels: bool
+ ){
+ let phantom_route_hints = network_multi_nodes.iter()
+ .map(|node| node.node.get_phantom_route_hints())
+ .collect::<Vec<PhantomRouteHints>>();
+ let phantom_scids = phantom_route_hints.iter()
+ .map(|route_hint| route_hint.phantom_scid)
+ .collect::<HashSet<u64>>();
+
+ let invoice = crate::utils::create_phantom_invoice::<&test_utils::TestKeysInterface,
+ &test_utils::TestKeysInterface, &test_utils::TestLogger>(invoice_amt, None, "test".to_string(),
+ 3600, phantom_route_hints, invoice_node.keys_manager, invoice_node.keys_manager,
+ invoice_node.logger, Currency::BitcoinTestnet, None, Duration::from_secs(1234567)).unwrap();
+
+ let invoice_hints = invoice.private_routes();
+
+ for hint in invoice_hints {
+ let hints = &(hint.0).0;
+ match hints.len() {
+ 1 => {
+ assert!(nodes_contains_public_channels);
+ let phantom_scid = hints[0].short_channel_id;
+ assert!(phantom_scids.contains(&phantom_scid));
+ },
+ 2 => {
+ let hint_short_chan_id = hints[0].short_channel_id;
+ assert!(chan_ids_to_match.remove(&hint_short_chan_id));
+ let phantom_scid = hints[1].short_channel_id;
+ assert!(phantom_scids.contains(&phantom_scid));
+ },
+ _ => panic!("Incorrect hint length generated")
+ }
+ }
+ assert!(chan_ids_to_match.is_empty(), "Unmatched short channel ids: {:?}", chan_ids_to_match);
+ }
+
+ #[test]
+ fn test_create_invoice_fails_with_invalid_custom_min_final_cltv_expiry_delta() {
+ let chanmon_cfgs = create_chanmon_cfgs(2);
+ let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+ let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+ let result = crate::utils::create_invoice_from_channelmanager_and_duration_since_epoch(
+ nodes[1].node, nodes[1].keys_manager, nodes[1].logger, Currency::BitcoinTestnet,
+ Some(10_000), "Some description".into(), Duration::from_secs(1234567), 3600, Some(MIN_FINAL_CLTV_EXPIRY_DELTA - 4),
+ );
+ match result {
+ Err(SignOrCreationError::CreationError(CreationError::MinFinalCltvExpiryDeltaTooShort)) => {},
+ _ => panic!(),
+ }
+ }