Consider commitment tx fee while assembling a route
[rust-lightning] / lightning / src / ln / functional_tests.rs
index 40487289edf63a3bbf5eebd364fea83f071cd65b..81c42861a8d8df22b1881b81552f92d0e43a2591 100644 (file)
@@ -38,12 +38,11 @@ use crate::util::string::UntrustedString;
 use crate::util::config::UserConfig;
 
 use bitcoin::hash_types::BlockHash;
-use bitcoin::blockdata::block::{Block, BlockHeader};
 use bitcoin::blockdata::script::{Builder, Script};
 use bitcoin::blockdata::opcodes;
 use bitcoin::blockdata::constants::genesis_block;
 use bitcoin::network::constants::Network;
-use bitcoin::{PackedLockTime, Sequence, Transaction, TxIn, TxMerkleNode, TxOut, Witness};
+use bitcoin::{PackedLockTime, Sequence, Transaction, TxIn, TxOut, Witness};
 use bitcoin::OutPoint as BitcoinOutPoint;
 
 use bitcoin::secp256k1::Secp256k1;
@@ -509,10 +508,7 @@ fn do_test_sanity_on_in_flight_opens(steps: u8) {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
        if steps & 0b1000_0000 != 0{
-               let block = Block {
-                       header: BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-                       txdata: vec![],
-               };
+               let block = create_dummy_block(nodes[0].best_block_hash(), 42, Vec::new());
                connect_block(&nodes[0], &block);
                connect_block(&nodes[1], &block);
        }
@@ -1346,7 +1342,9 @@ fn test_basic_channel_reserve() {
        // The 2* and +1 are for the fee spike reserve.
        let commit_tx_fee = 2 * commit_tx_fee_msat(get_feerate!(nodes[0], nodes[1], chan.2), 1 + 1, get_opt_anchors!(nodes[0], nodes[1], chan.2));
        let max_can_send = 5000000 - channel_reserve - commit_tx_fee;
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], max_can_send + 1);
+       let (mut route, our_payment_hash, _, our_payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], max_can_send);
+       route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
        let err = nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)).err().unwrap();
        match err {
@@ -1373,7 +1371,9 @@ fn test_fee_spike_violation_fails_htlc() {
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000);
 
-       let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 3460001);
+       let (mut route, payment_hash, _, payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], 3460000);
+       route.paths[0].hops[0].fee_msat += 1;
        // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
        let secp_ctx = Secp256k1::new();
        let session_priv = SecretKey::from_slice(&[42; 32]).expect("RNG is bad!");
@@ -1383,7 +1383,7 @@ fn test_fee_spike_violation_fails_htlc() {
        let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
        let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0],
                3460001, RecipientOnionFields::secret_only(payment_secret), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
        let msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
                htlc_id: 0,
@@ -1571,7 +1571,7 @@ fn test_chan_reserve_violation_inbound_htlc_outbound_channel() {
        let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
        let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0],
                700_000, RecipientOnionFields::secret_only(payment_secret), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
        let msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
                htlc_id: MIN_AFFORDABLE_HTLC_COUNT as u64,
@@ -1736,7 +1736,8 @@ fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
        let commit_tx_fee_2_htlcs = commit_tx_fee_msat(feerate, 2, opt_anchors);
        let recv_value_2 = chan_stat.value_to_self_msat - amt_msat_1 - chan_stat.channel_reserve_msat - total_routing_fee_msat - commit_tx_fee_2_htlcs + 1;
        let amt_msat_2 = recv_value_2 + total_routing_fee_msat;
-       let (route_2, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[2], amt_msat_2);
+       let mut route_2 = route_1.clone();
+       route_2.paths[0].hops.last_mut().unwrap().fee_msat = amt_msat_2;
 
        // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
        let secp_ctx = Secp256k1::new();
@@ -1745,7 +1746,7 @@ fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
        let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route_2.paths[0], &session_priv).unwrap();
        let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(
                &route_2.paths[0], recv_value_2, RecipientOnionFields::spontaneous_empty(), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash_1);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash_1).unwrap();
        let msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
                htlc_id: 1,
@@ -1829,7 +1830,7 @@ fn test_channel_reserve_holding_cell_htlcs() {
        // attempt to send amt_msat > their_max_htlc_value_in_flight_msat
        {
                let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-                       .with_features(nodes[2].node.invoice_features()).with_max_channel_saturation_power_of_half(0);
+                       .with_bolt11_features(nodes[2].node.invoice_features()).unwrap().with_max_channel_saturation_power_of_half(0);
                let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], payment_params, recv_value_0);
                route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
                assert!(route.paths[0].hops.iter().rev().skip(1).all(|h| h.fee_msat == feemsat));
@@ -1856,7 +1857,7 @@ fn test_channel_reserve_holding_cell_htlcs() {
                }
 
                let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-                       .with_features(nodes[2].node.invoice_features()).with_max_channel_saturation_power_of_half(0);
+                       .with_bolt11_features(nodes[2].node.invoice_features()).unwrap().with_max_channel_saturation_power_of_half(0);
                let route = get_route!(nodes[0], payment_params, recv_value_0).unwrap();
                let (payment_preimage, ..) = send_along_route(&nodes[0], route, &[&nodes[1], &nodes[2]], recv_value_0);
                claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
@@ -1905,7 +1906,9 @@ fn test_channel_reserve_holding_cell_htlcs() {
        // channel reserve test with htlc pending output > 0
        let recv_value_2 = stat01.value_to_self_msat - amt_msat_1 - stat01.channel_reserve_msat - total_fee_msat - commit_tx_fee_2_htlcs;
        {
-               let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_2 + 1);
+               let mut route = route_1.clone();
+               route.paths[0].hops.last_mut().unwrap().fee_msat = recv_value_2 + 1;
+               let (_, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(nodes[2]);
                unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
                        ), true, APIError::ChannelUnavailable { ref err },
@@ -1934,7 +1937,9 @@ fn test_channel_reserve_holding_cell_htlcs() {
 
        // test with outbound holding cell amount > 0
        {
-               let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_22+1);
+               let (mut route, our_payment_hash, _, our_payment_secret) =
+                       get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_22);
+               route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
                unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
                        ), true, APIError::ChannelUnavailable { ref err },
@@ -2763,8 +2768,7 @@ fn test_htlc_on_chain_success() {
        assert_eq!(node_txn[1].lock_time.0, 0);
 
        // Verify that B's ChannelManager is able to extract preimage from HTLC Success tx and pass it backward
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-       connect_block(&nodes[1], &Block { header, txdata: vec![commitment_tx[0].clone(), node_txn[0].clone(), node_txn[1].clone()]});
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![commitment_tx[0].clone(), node_txn[0].clone(), node_txn[1].clone()]));
        connect_blocks(&nodes[1], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
        {
                let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
@@ -2900,8 +2904,7 @@ fn test_htlc_on_chain_success() {
        // we already checked the same situation with A.
 
        // Verify that A's ChannelManager is able to extract preimage from preimage tx and generate PaymentSent
-       let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-       connect_block(&nodes[0], &Block { header, txdata: vec![node_a_commitment_tx[0].clone(), commitment_spend.clone()] });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![node_a_commitment_tx[0].clone(), commitment_spend.clone()]));
        connect_blocks(&nodes[0], TEST_FINAL_CLTV + MIN_CLTV_EXPIRY_DELTA as u32); // Confirm blocks until the HTLC expires
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
@@ -3398,7 +3401,7 @@ fn fail_backward_pending_htlc_upon_channel_failure() {
                let (onion_payloads, _amount_msat, cltv_expiry) = onion_utils::build_onion_payloads(
                        &route.paths[0], 50_000, RecipientOnionFields::secret_only(payment_secret), current_height, &None).unwrap();
                let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
-               let onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
+               let onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
 
                // Send a 0-msat update_add_htlc to fail the channel.
                let update_add_htlc = msgs::UpdateAddHTLC {
@@ -3463,15 +3466,15 @@ fn test_htlc_ignore_latest_remote_commitment() {
        assert_eq!(node_txn.len(), 3);
        assert_eq!(node_txn[0].txid(), node_txn[1].txid());
 
-       let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[1].clone()]});
+       let block = create_dummy_block(nodes[1].best_block_hash(), 42, vec![node_txn[0].clone(), node_txn[1].clone()]);
+       connect_block(&nodes[1], &block);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
        check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
 
        // Duplicate the connect_block call since this may happen due to other listeners
        // registering new transactions
-       connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[2].clone()]});
+       connect_block(&nodes[1], &block);
 }
 
 #[test]
@@ -4152,10 +4155,7 @@ fn do_test_htlc_timeout(send_partial_mpp: bool) {
                route_payment(&nodes[0], &[&nodes[1]], 100000).1
        };
 
-       let mut block = Block {
-               header: BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-               txdata: vec![],
-       };
+       let mut block = create_dummy_block(nodes[0].best_block_hash(), 42, Vec::new());
        connect_block(&nodes[0], &block);
        connect_block(&nodes[1], &block);
        let block_count = TEST_FINAL_CLTV + CHAN_CONFIRM_DEPTH + 2 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS;
@@ -4263,7 +4263,7 @@ macro_rules! check_spendable_outputs {
                                match event {
                                        Event::SpendableOutputs { mut outputs } => {
                                                for outp in outputs.drain(..) {
-                                                       txn.push($keysinterface.backing.spend_spendable_outputs(&[&outp], Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &secp_ctx).unwrap());
+                                                       txn.push($keysinterface.backing.spend_spendable_outputs(&[&outp], Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, None, &secp_ctx).unwrap());
                                                        all_outputs.push(outp);
                                                }
                                        },
@@ -4271,7 +4271,7 @@ macro_rules! check_spendable_outputs {
                                };
                        }
                        if all_outputs.len() > 1 {
-                               if let Ok(tx) = $keysinterface.backing.spend_spendable_outputs(&all_outputs.iter().map(|a| a).collect::<Vec<_>>(), Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &secp_ctx) {
+                               if let Ok(tx) = $keysinterface.backing.spend_spendable_outputs(&all_outputs.iter().map(|a| a).collect::<Vec<_>>(), Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, None, &secp_ctx) {
                                        txn.push(tx);
                                }
                        }
@@ -4534,8 +4534,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() {
        assert_ne!(revoked_htlc_txn[0].lock_time.0, 0); // HTLC-Timeout
 
        // B will generate justice tx from A's revoked commitment/HTLC tx
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] });
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()]));
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
        check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
@@ -4605,8 +4604,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() {
        assert_eq!(revoked_local_txn[0].output[unspent_local_txn_output].script_pubkey.len(), 2 + 20); // P2WPKH
 
        // A will generate justice tx from B's revoked commitment/HTLC tx
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()]));
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
        check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
@@ -4699,8 +4697,7 @@ fn test_onchain_to_onchain_claim() {
        assert_eq!(c_txn[0].lock_time.0, 0); // Success tx
 
        // So we broadcast C's commitment tx and HTLC-Success on B's chain, we should successfully be able to extract preimage and update downstream monitor
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-       connect_block(&nodes[1], &Block { header, txdata: vec![commitment_tx[0].clone(), c_txn[0].clone()]});
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![commitment_tx[0].clone(), c_txn[0].clone()]));
        check_added_monitors!(nodes[1], 1);
        let events = nodes[1].node.get_and_clear_pending_events();
        assert_eq!(events.len(), 2);
@@ -4795,7 +4792,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
        // script push size limit so that the below script length checks match
        // ACCEPTED_HTLC_SCRIPT_WEIGHT.
        let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV - 40)
-               .with_features(nodes[3].node.invoice_features());
+               .with_bolt11_features(nodes[3].node.invoice_features()).unwrap();
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[3], payment_params, 800_000);
        send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[2], &nodes[3]]], 800_000, duplicate_payment_hash, payment_secret);
 
@@ -5457,10 +5454,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) {
        check_added_monitors!(nodes[1], 1);
 
        let starting_block = nodes[1].best_block_info();
-       let mut block = Block {
-               header: BlockHeader { version: 0x20000000, prev_blockhash: starting_block.0, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-               txdata: vec![],
-       };
+       let mut block = create_dummy_block(starting_block.0, 42, Vec::new());
        for _ in starting_block.1 + 1..TEST_FINAL_CLTV - CLTV_CLAIM_BUFFER + starting_block.1 + 2 {
                connect_block(&nodes[1], &block);
                block.header.prev_blockhash = block.block_hash();
@@ -5490,11 +5484,11 @@ fn do_htlc_claim_current_remote_commitment_only(use_dust: bool) {
        // to "time out" the HTLC.
 
        let starting_block = nodes[1].best_block_info();
-       let mut header = BlockHeader { version: 0x20000000, prev_blockhash: starting_block.0, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
+       let mut block = create_dummy_block(starting_block.0, 42, Vec::new());
 
        for _ in starting_block.1 + 1..TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + starting_block.1 + 2 {
-               connect_block(&nodes[0], &Block { header, txdata: Vec::new()});
-               header.prev_blockhash = header.block_hash();
+               connect_block(&nodes[0], &block);
+               block.header.prev_blockhash = block.block_hash();
        }
        test_txn_broadcast(&nodes[0], &chan, None, HTLCType::NONE);
        check_closed_broadcast!(nodes[0], true);
@@ -5536,10 +5530,7 @@ fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no
        }
 
        let starting_block = nodes[1].best_block_info();
-       let mut block = Block {
-               header: BlockHeader { version: 0x20000000, prev_blockhash: starting_block.0, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-               txdata: vec![],
-       };
+       let mut block = create_dummy_block(starting_block.0, 42, Vec::new());
        for _ in starting_block.1 + 1..TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + CHAN_CONFIRM_DEPTH + 2 {
                connect_block(&nodes[0], &block);
                block.header.prev_blockhash = block.block_hash();
@@ -5896,10 +5887,10 @@ fn test_free_and_fail_holding_cell_htlcs() {
 fn test_fail_holding_cell_htlc_upon_free_multihop() {
        let chanmon_cfgs = create_chanmon_cfgs(3);
        let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
-       // When this test was written, the default base fee floated based on the HTLC count.
-       // It is now fixed, so we simply set the fee to the expected value here.
+       // Avoid having to include routing fees in calculations
        let mut config = test_default_channel_config();
-       config.channel_config.forwarding_fee_base_msat = 196;
+       config.channel_config.forwarding_fee_base_msat = 0;
+       config.channel_config.forwarding_fee_proportional_millionths = 0;
        let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[Some(config.clone()), Some(config.clone()), Some(config.clone())]);
        let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
        let chan_0_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000);
@@ -5931,9 +5922,7 @@ fn test_fail_holding_cell_htlc_upon_free_multihop() {
        let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan_0_1.2);
 
        // Send a payment which passes reserve checks but gets stuck in the holding cell.
-       let feemsat = 239;
-       let total_routing_fee_msat = (nodes.len() - 2) as u64 * feemsat;
-       let max_can_send = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 1 + 1, opt_anchors) - total_routing_fee_msat;
+       let max_can_send = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 1 + 1, opt_anchors);
        let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], max_can_send);
        let payment_event = {
                nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -6101,7 +6090,7 @@ fn test_update_add_htlc_bolt2_sender_cltv_expiry_too_high() {
        let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0);
 
        let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 0)
-               .with_features(nodes[1].node.invoice_features());
+               .with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
        let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], payment_params, 100000000);
        route.paths[0].hops.last_mut().unwrap().cltv_expiry_delta = 500000001;
        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -6261,13 +6250,16 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000);
 
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 3999999);
+       let send_amt = 3999999;
+       let (mut route, our_payment_hash, _, our_payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], 1000);
+       route.paths[0].hops[0].fee_msat = send_amt;
        let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
        let cur_height = nodes[0].node.best_block.read().unwrap().height() + 1;
        let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::signing_only(), &route.paths[0], &session_priv).unwrap();
        let (onion_payloads, _htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(
-               &route.paths[0], 3999999, RecipientOnionFields::secret_only(our_payment_secret), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash);
+               &route.paths[0], send_amt, RecipientOnionFields::secret_only(our_payment_secret), cur_height, &None).unwrap();
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash).unwrap();
 
        let mut msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
@@ -7043,8 +7035,8 @@ fn test_check_htlc_underpaying() {
 
        let scorer = test_utils::TestScorer::new();
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
-       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV).with_features(nodes[1].node.invoice_features());
-       let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None, 10_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV).with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
+       let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None, 10_000, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
        let (_, our_payment_hash, _) = get_payment_preimage_hash!(nodes[0]);
        let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(our_payment_hash, Some(100_000), 7200, None).unwrap();
        nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -7189,7 +7181,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 30)
-               .with_features(nodes[0].node.invoice_features());
+               .with_bolt11_features(nodes[0].node.invoice_features()).unwrap();
        let (route,_, _, _) = get_route_and_payment_hash!(nodes[1], nodes[0], payment_params, 3000000);
        send_along_route(&nodes[1], route, &vec!(&nodes[0])[..], 3000000);
 
@@ -7212,8 +7204,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
 
        // Actually revoke tx by claiming a HTLC
        claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: header_114, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[1], &Block { header, txdata: vec![revoked_txn[0].clone()] });
+       connect_block(&nodes[1], &create_dummy_block(header_114, 42, vec![revoked_txn[0].clone()]));
        check_added_monitors!(nodes[1], 1);
 
        // One or more justice tx should have been broadcast, check it
@@ -7294,15 +7285,15 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
 
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000);
        // Lock HTLC in both directions (using a slightly lower CLTV delay to provide timely RBF bumps)
-       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 50).with_features(nodes[1].node.invoice_features());
+       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 50).with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
        let scorer = test_utils::TestScorer::new();
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
        let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None,
-               3_000_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+               3_000_000, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
        let payment_preimage = send_along_route(&nodes[0], route, &[&nodes[1]], 3_000_000).0;
-       let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 50).with_features(nodes[0].node.invoice_features());
+       let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 50).with_bolt11_features(nodes[0].node.invoice_features()).unwrap();
        let route = get_route(&nodes[1].node.get_our_node_id(), &payment_params, &nodes[1].network_graph.read_only(), None,
-               3_000_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+               3_000_000, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
        send_along_route(&nodes[1], route, &[&nodes[0]], 3_000_000);
 
        let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan.2);
@@ -7312,9 +7303,8 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
        // Revoke local commitment tx
        claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
 
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
        // B will generate both revoked HTLC-timeout/HTLC-preimage txn from revoked commitment tx
-       connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone()] });
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![revoked_local_txn[0].clone()]));
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
        check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
@@ -7338,10 +7328,10 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
 
        // Broadcast set of revoked txn on A
        let hash_128 = connect_blocks(&nodes[0], 40);
-       let header_11 = BlockHeader { version: 0x20000000, prev_blockhash: hash_128, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_11, txdata: vec![revoked_local_txn[0].clone()] });
-       let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_11.block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_129, txdata: vec![revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()] });
+       let block_11 = create_dummy_block(hash_128, 42, vec![revoked_local_txn[0].clone()]);
+       connect_block(&nodes[0], &block_11);
+       let block_129 = create_dummy_block(block_11.block_hash(), 42, vec![revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()]);
+       connect_block(&nodes[0], &block_129);
        let events = nodes[0].node.get_and_clear_pending_events();
        expect_pending_htlcs_forwardable_from_events!(nodes[0], events[0..1], true);
        match events.last().unwrap() {
@@ -7392,10 +7382,10 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
        }
 
        // Connect one more block to see if bumped penalty are issued for HTLC txn
-       let header_130 = BlockHeader { version: 0x20000000, prev_blockhash: header_129.block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_130, txdata: penalty_txn });
-       let header_131 = BlockHeader { version: 0x20000000, prev_blockhash: header_130.block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_131, txdata: Vec::new() });
+       let block_130 = create_dummy_block(block_129.block_hash(), 42, penalty_txn);
+       connect_block(&nodes[0], &block_130);
+       let block_131 = create_dummy_block(block_130.block_hash(), 42, Vec::new());
+       connect_block(&nodes[0], &block_131);
 
        // Few more blocks to confirm penalty txn
        connect_blocks(&nodes[0], 4);
@@ -7417,8 +7407,7 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
                txn
        };
        // Broadcast claim txn and confirm blocks to avoid further bumps on this outputs
-       let header_145 = BlockHeader { version: 0x20000000, prev_blockhash: header_144, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_145, txdata: node_txn });
+       connect_block(&nodes[0], &create_dummy_block(header_144, 42, node_txn));
        connect_blocks(&nodes[0], 20);
        {
                let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
@@ -7630,8 +7619,7 @@ fn test_bump_txn_sanitize_tracking_maps() {
                node_txn.clear();
                penalty_txn
        };
-       let header_130 = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_130, txdata: penalty_txn });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, penalty_txn));
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
        {
                let monitor = nodes[0].chain_monitor.chain_monitor.get_monitor(OutPoint { txid: chan.3.txid(), index: 0 }).unwrap();
@@ -7640,45 +7628,6 @@ fn test_bump_txn_sanitize_tracking_maps() {
        }
 }
 
-#[test]
-fn test_pending_claimed_htlc_no_balance_underflow() {
-       // Tests that if we have a pending outbound HTLC as well as a claimed-but-not-fully-removed
-       // HTLC we will not underflow when we call `Channel::get_balance_msat()`.
-       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);
-       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, 0);
-
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 1_010_000);
-       nodes[1].node.claim_funds(payment_preimage);
-       expect_payment_claimed!(nodes[1], payment_hash, 1_010_000);
-       check_added_monitors!(nodes[1], 1);
-       let fulfill_ev = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
-
-       nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &fulfill_ev.update_fulfill_htlcs[0]);
-       expect_payment_sent_without_paths!(nodes[0], payment_preimage);
-       nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &fulfill_ev.commitment_signed);
-       check_added_monitors!(nodes[0], 1);
-       let (_raa, _cs) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
-
-       // At this point nodes[1] has received 1,010k msat (10k msat more than their reserve) and can
-       // send an HTLC back (though it will go in the holding cell). Send an HTLC back and check we
-       // can get our balance.
-
-       // Get a route from nodes[1] to nodes[0] by getting a route going the other way and then flip
-       // the public key of the only hop. This works around ChannelDetails not showing the
-       // almost-claimed HTLC as available balance.
-       let (mut route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[1], 10_000);
-       route.payment_params = None; // This is all wrong, but unnecessary
-       route.paths[0].hops[0].pubkey = nodes[0].node.get_our_node_id();
-       let (_, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[0]);
-       nodes[1].node.send_payment_with_route(&route, payment_hash_2,
-               RecipientOnionFields::secret_only(payment_secret_2), PaymentId(payment_hash_2.0)).unwrap();
-
-       assert_eq!(nodes[1].node.list_channels()[0].balance_msat, 1_000_000);
-}
-
 #[test]
 fn test_channel_conf_timeout() {
        // Tests that, for inbound channels, we give up on them if the funding transaction does not
@@ -8087,7 +8036,7 @@ fn test_onion_value_mpp_set_calculation() {
                        // Edit amt_to_forward to simulate the sender having set
                        // the final amount and the routing node taking less fee
                        onion_payloads[1].amt_to_forward = 99_000;
-                       let new_onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash);
+                       let new_onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash).unwrap();
                        payment_event.msgs[0].onion_routing_packet = new_onion_packet;
                }
 
@@ -8275,14 +8224,7 @@ fn test_secret_timeout() {
        } else { panic!(); }
        let mut block = {
                let node_1_blocks = nodes[1].blocks.lock().unwrap();
-               Block {
-                       header: BlockHeader {
-                               version: 0x2000000,
-                               prev_blockhash: node_1_blocks.last().unwrap().0.block_hash(),
-                               merkle_root: TxMerkleNode::all_zeros(),
-                               time: node_1_blocks.len() as u32 + 7200, bits: 42, nonce: 42 },
-                       txdata: vec![],
-               }
+               create_dummy_block(node_1_blocks.last().unwrap().0.block_hash(), node_1_blocks.len() as u32 + 7200, Vec::new())
        };
        connect_block(&nodes[1], &block);
        if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash_legacy(payment_hash, Some(100_000), 2) {
@@ -8430,8 +8372,7 @@ fn test_update_err_monitor_lockdown() {
                assert_eq!(watchtower.watch_channel(outpoint, new_monitor), ChannelMonitorUpdateStatus::Completed);
                watchtower
        };
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       let block = Block { header, txdata: vec![] };
+       let block = create_dummy_block(BlockHash::all_zeros(), 42, Vec::new());
        // Make the tx_broadcaster aware of enough blocks that it doesn't think we're violating
        // transaction lock time requirements here.
        chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize(200, (block.clone(), 200));
@@ -8449,7 +8390,7 @@ fn test_update_err_monitor_lockdown() {
                let mut node_0_per_peer_lock;
                let mut node_0_peer_state_lock;
                let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2);
-               if let Ok(update) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
+               if let Ok(Some(update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
                        assert_eq!(watchtower.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::PermanentFailure);
                        assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
                } else { assert!(false); }
@@ -8501,8 +8442,7 @@ fn test_concurrent_monitor_claim() {
                assert_eq!(watchtower.watch_channel(outpoint, new_monitor), ChannelMonitorUpdateStatus::Completed);
                watchtower
        };
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       let block = Block { header, txdata: vec![] };
+       let block = create_dummy_block(BlockHash::all_zeros(), 42, Vec::new());
        // Make Alice aware of enough blocks that it doesn't think we're violating transaction lock time
        // requirements here.
        const HTLC_TIMEOUT_BROADCAST: u32 = CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS;
@@ -8533,8 +8473,7 @@ fn test_concurrent_monitor_claim() {
                assert_eq!(watchtower.watch_channel(outpoint, new_monitor), ChannelMonitorUpdateStatus::Completed);
                watchtower
        };
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       watchtower_bob.chain_monitor.block_connected(&Block { header, txdata: vec![] }, HTLC_TIMEOUT_BROADCAST - 1);
+       watchtower_bob.chain_monitor.block_connected(&create_dummy_block(BlockHash::all_zeros(), 42, Vec::new()), HTLC_TIMEOUT_BROADCAST - 1);
 
        // Route another payment to generate another update with still previous HTLC pending
        let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], 3000000);
@@ -8549,7 +8488,7 @@ fn test_concurrent_monitor_claim() {
                let mut node_0_per_peer_lock;
                let mut node_0_peer_state_lock;
                let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2);
-               if let Ok(update) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
+               if let Ok(Some(update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
                        // Watchtower Alice should already have seen the block and reject the update
                        assert_eq!(watchtower_alice.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::PermanentFailure);
                        assert_eq!(watchtower_bob.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
@@ -8560,8 +8499,7 @@ fn test_concurrent_monitor_claim() {
        check_added_monitors!(nodes[0], 1);
 
        //// Provide one more block to watchtower Bob, expect broadcast of commitment and HTLC-Timeout
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       watchtower_bob.chain_monitor.block_connected(&Block { header, txdata: vec![] }, HTLC_TIMEOUT_BROADCAST);
+       watchtower_bob.chain_monitor.block_connected(&create_dummy_block(BlockHash::all_zeros(), 42, Vec::new()), HTLC_TIMEOUT_BROADCAST);
 
        // Watchtower Bob should have broadcast a commitment/HTLC-timeout
        let bob_state_y;
@@ -8572,12 +8510,11 @@ fn test_concurrent_monitor_claim() {
        };
 
        // We confirm Bob's state Y on Alice, she should broadcast a HTLC-timeout
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
        let height = HTLC_TIMEOUT_BROADCAST + 1;
        connect_blocks(&nodes[0], height - nodes[0].best_block_info().1);
        check_closed_broadcast(&nodes[0], 1, true);
        check_closed_event(&nodes[0], 1, ClosureReason::CommitmentTxConfirmed, false);
-       watchtower_alice.chain_monitor.block_connected(&Block { header, txdata: vec![bob_state_y.clone()] }, height);
+       watchtower_alice.chain_monitor.block_connected(&create_dummy_block(BlockHash::all_zeros(), 42, vec![bob_state_y.clone()]), height);
        check_added_monitors(&nodes[0], 1);
        {
                let htlc_txn = alice_broadcaster.txn_broadcast();
@@ -8652,11 +8589,11 @@ fn test_htlc_no_detection() {
        check_spends!(local_txn[0], chan_1.3);
 
        // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header, txdata: vec![local_txn[0].clone()] });
+       let block = create_dummy_block(nodes[0].best_block_hash(), 42, vec![local_txn[0].clone()]);
+       connect_block(&nodes[0], &block);
        // We deliberately connect the local tx twice as this should provoke a failure calling
        // this test before #653 fix.
-       chain::Listen::block_connected(&nodes[0].chain_monitor.chain_monitor, &Block { header, txdata: vec![local_txn[0].clone()] }, nodes[0].best_block_info().1 + 1);
+       chain::Listen::block_connected(&nodes[0].chain_monitor.chain_monitor, &block, nodes[0].best_block_info().1 + 1);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
        check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
@@ -8671,8 +8608,7 @@ fn test_htlc_no_detection() {
                node_txn[0].clone()
        };
 
-       let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_201, txdata: vec![htlc_timeout.clone()] });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![htlc_timeout.clone()]));
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
        expect_payment_failed!(nodes[0], our_payment_hash, false);
 }
@@ -8732,8 +8668,7 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
                        true => alice_txn.clone(),
                        false => get_local_commitment_txn!(nodes[1], chan_ab.2)
                };
-               let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-               connect_block(&nodes[1], &Block { header, txdata: vec![txn_to_broadcast[0].clone()]});
+               connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![txn_to_broadcast[0].clone()]));
                if broadcast_alice {
                        check_closed_broadcast!(nodes[1], true);
                        check_added_monitors!(nodes[1], 1);
@@ -8812,8 +8747,7 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
        let mut txn_to_broadcast = alice_txn.clone();
        if !broadcast_alice { txn_to_broadcast = get_local_commitment_txn!(nodes[1], chan_ab.2); }
        if !go_onchain_before_fulfill {
-               let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-               connect_block(&nodes[1], &Block { header, txdata: vec![txn_to_broadcast[0].clone()]});
+               connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![txn_to_broadcast[0].clone()]));
                // If Bob was the one to force-close, he will have already passed these checks earlier.
                if broadcast_alice {
                        check_closed_broadcast!(nodes[1], true);
@@ -9300,7 +9234,7 @@ fn do_test_dup_htlc_second_rejected(test_for_second_fail_panic: bool) {
        let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
 
        let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV)
-               .with_features(nodes[1].node.invoice_features());
+               .with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
        let route = get_route!(nodes[0], payment_params, 10_000).unwrap();
 
        let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(&nodes[1]);
@@ -9409,7 +9343,7 @@ fn test_inconsistent_mpp_params() {
        let chan_2_3 =create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 100_000, 0);
 
        let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
-               .with_features(nodes[3].node.invoice_features());
+               .with_bolt11_features(nodes[3].node.invoice_features()).unwrap();
        let mut route = get_route!(nodes[0], payment_params, 15_000_000).unwrap();
        assert_eq!(route.paths.len(), 2);
        route.paths.sort_by(|path_a, _| {
@@ -9520,7 +9454,7 @@ fn test_keysend_payments_to_public_node() {
        };
        let scorer = test_utils::TestScorer::new();
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
-       let route = find_route(&payer_pubkey, &route_params, &network_graph, None, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+       let route = find_route(&payer_pubkey, &route_params, &network_graph, None, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
 
        let test_preimage = PaymentPreimage([42; 32]);
        let payment_hash = nodes[0].node.send_spontaneous_payment(&route, Some(test_preimage),
@@ -9555,7 +9489,7 @@ fn test_keysend_payments_to_private_node() {
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
        let route = find_route(
                &payer_pubkey, &route_params, &network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
-               nodes[0].logger, &scorer, &random_seed_bytes
+               nodes[0].logger, &scorer, &(), &random_seed_bytes
        ).unwrap();
 
        let test_preimage = PaymentPreimage([42; 32]);