Merge pull request #2699 from mhrheaume/mhr/temporary_channel_id
[rust-lightning] / lightning / src / ln / monitor_tests.rs
index 70a4ee08b5934b9354ac4338ae6514286df306c0..60caed4dbdc8c0fe4974137a233bc733e8886603 100644 (file)
@@ -1100,7 +1100,7 @@ fn sorted_vec_with_additions<T: Ord + Clone>(v_orig: &Vec<T>, extra_ts: &[&T]) -
        v
 }
 
-fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bool) {
+fn do_test_revoked_counterparty_commitment_balances(anchors: bool, confirm_htlc_spend_first: bool) {
        // Tests `get_claimable_balances` for revoked counterparty commitment transactions.
        let mut chanmon_cfgs = create_chanmon_cfgs(2);
        // We broadcast a second-to-latest commitment transaction, without providing the revocation
@@ -1109,7 +1109,12 @@ fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bo
        // transaction which, from the point of view of our keys_manager, is revoked.
        chanmon_cfgs[1].keys_manager.disable_revocation_policy_check = true;
        let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
-       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let mut user_config = test_default_channel_config();
+       if anchors {
+               user_config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx = true;
+               user_config.manually_accept_inbound_channels = true;
+       }
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(user_config), Some(user_config)]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
        let (_, _, chan_id, funding_tx) =
@@ -1219,16 +1224,23 @@ fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bo
 
        // The following constants were determined experimentally
        const BS_TO_SELF_CLAIM_EXP_WEIGHT: usize = 483;
-       const OUTBOUND_HTLC_CLAIM_EXP_WEIGHT: usize = 571;
-       const INBOUND_HTLC_CLAIM_EXP_WEIGHT: usize = 578;
+       let outbound_htlc_claim_exp_weight: usize = if anchors { 574 } else { 571 };
+       let inbound_htlc_claim_exp_weight: usize = if anchors { 582 } else { 578 };
 
        // Check that the weight is close to the expected weight. Note that signature sizes vary
        // somewhat so it may not always be exact.
-       fuzzy_assert_eq(claim_txn[0].weight(), OUTBOUND_HTLC_CLAIM_EXP_WEIGHT);
-       fuzzy_assert_eq(claim_txn[1].weight(), INBOUND_HTLC_CLAIM_EXP_WEIGHT);
-       fuzzy_assert_eq(claim_txn[2].weight(), INBOUND_HTLC_CLAIM_EXP_WEIGHT);
+       fuzzy_assert_eq(claim_txn[0].weight(), outbound_htlc_claim_exp_weight);
+       fuzzy_assert_eq(claim_txn[1].weight(), inbound_htlc_claim_exp_weight);
+       fuzzy_assert_eq(claim_txn[2].weight(), inbound_htlc_claim_exp_weight);
        fuzzy_assert_eq(claim_txn[3].weight(), BS_TO_SELF_CLAIM_EXP_WEIGHT);
 
+       let commitment_tx_fee = chan_feerate *
+               (channel::commitment_tx_base_weight(&channel_type_features) + 3 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
+       let anchor_outputs_value = if anchors { channel::ANCHOR_OUTPUT_VALUE_SATOSHI * 2 } else { 0 };
+       let inbound_htlc_claim_fee = chan_feerate * inbound_htlc_claim_exp_weight as u64 / 1000;
+       let outbound_htlc_claim_fee = chan_feerate * outbound_htlc_claim_exp_weight as u64 / 1000;
+       let to_self_claim_fee = chan_feerate * claim_txn[3].weight() as u64 / 1000;
+
        // The expected balance for the next three checks, with the largest-HTLC and to_self output
        // claim balances separated out.
        let expected_balance = vec![Balance::ClaimableAwaitingConfirmations {
@@ -1242,8 +1254,7 @@ fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bo
                }];
 
        let to_self_unclaimed_balance = Balance::CounterpartyRevokedOutputClaimable {
-               amount_satoshis: 1_000_000 - 100_000 - 3_000 - chan_feerate *
-                       (channel::commitment_tx_base_weight(&channel_type_features) + 3 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+               amount_satoshis: 1_000_000 - 100_000 - 3_000 - commitment_tx_fee - anchor_outputs_value,
        };
        let to_self_claimed_avail_height;
        let largest_htlc_unclaimed_balance = Balance::CounterpartyRevokedOutputClaimable {
@@ -1268,13 +1279,11 @@ fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bo
        }
 
        let largest_htlc_claimed_balance = Balance::ClaimableAwaitingConfirmations {
-               amount_satoshis: 5_000 - chan_feerate * INBOUND_HTLC_CLAIM_EXP_WEIGHT as u64 / 1000,
+               amount_satoshis: 5_000 - inbound_htlc_claim_fee,
                confirmation_height: largest_htlc_claimed_avail_height,
        };
        let to_self_claimed_balance = Balance::ClaimableAwaitingConfirmations {
-               amount_satoshis: 1_000_000 - 100_000 - 3_000 - chan_feerate *
-                       (channel::commitment_tx_base_weight(&channel_type_features) + 3 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000
-                       - chan_feerate * claim_txn[3].weight() as u64 / 1000,
+               amount_satoshis: 1_000_000 - 100_000 - 3_000 - commitment_tx_fee - anchor_outputs_value - to_self_claim_fee,
                confirmation_height: to_self_claimed_avail_height,
        };
 
@@ -1304,18 +1313,16 @@ fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bo
                        amount_satoshis: 100_000 - 5_000 - 4_000 - 3,
                        confirmation_height: nodes[1].best_block_info().1 + 1,
                }, Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: 1_000_000 - 100_000 - 3_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 3 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000
-                               - chan_feerate * claim_txn[3].weight() as u64 / 1000,
+                       amount_satoshis: 1_000_000 - 100_000 - 3_000 - commitment_tx_fee - anchor_outputs_value - to_self_claim_fee,
                        confirmation_height: to_self_claimed_avail_height,
                }, Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: 3_000 - chan_feerate * OUTBOUND_HTLC_CLAIM_EXP_WEIGHT as u64 / 1000,
+                       amount_satoshis: 3_000 - outbound_htlc_claim_fee,
                        confirmation_height: nodes[1].best_block_info().1 + 4,
                }, Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: 4_000 - chan_feerate * INBOUND_HTLC_CLAIM_EXP_WEIGHT as u64 / 1000,
+                       amount_satoshis: 4_000 - inbound_htlc_claim_fee,
                        confirmation_height: nodes[1].best_block_info().1 + 5,
                }, Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: 5_000 - chan_feerate * INBOUND_HTLC_CLAIM_EXP_WEIGHT as u64 / 1000,
+                       amount_satoshis: 5_000 - inbound_htlc_claim_fee,
                        confirmation_height: largest_htlc_claimed_avail_height,
                }]),
                sorted_vec(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
@@ -1352,22 +1359,48 @@ fn do_test_revoked_counterparty_commitment_balances(confirm_htlc_spend_first: bo
 
 #[test]
 fn test_revoked_counterparty_commitment_balances() {
-       do_test_revoked_counterparty_commitment_balances(true);
-       do_test_revoked_counterparty_commitment_balances(false);
+       do_test_revoked_counterparty_commitment_balances(false, true);
+       do_test_revoked_counterparty_commitment_balances(false, false);
+       do_test_revoked_counterparty_commitment_balances(true, true);
+       do_test_revoked_counterparty_commitment_balances(true, false);
 }
 
-#[test]
-fn test_revoked_counterparty_htlc_tx_balances() {
+fn do_test_revoked_counterparty_htlc_tx_balances(anchors: bool) {
        // Tests `get_claimable_balances` for revocation spends of HTLC transactions.
        let mut chanmon_cfgs = create_chanmon_cfgs(2);
        chanmon_cfgs[1].keys_manager.disable_revocation_policy_check = true;
        let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
-       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let mut user_config = test_default_channel_config();
+       if anchors {
+               user_config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx = true;
+               user_config.manually_accept_inbound_channels = true;
+       }
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(user_config), Some(user_config)]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
+       let coinbase_tx = Transaction {
+               version: 2,
+               lock_time: PackedLockTime::ZERO,
+               input: vec![TxIn { ..Default::default() }],
+               output: vec![
+                       TxOut {
+                               value: Amount::ONE_BTC.to_sat(),
+                               script_pubkey: nodes[0].wallet_source.get_change_script().unwrap(),
+                       },
+                       TxOut {
+                               value: Amount::ONE_BTC.to_sat(),
+                               script_pubkey: nodes[1].wallet_source.get_change_script().unwrap(),
+                       },
+               ],
+       };
+       if anchors {
+               nodes[0].wallet_source.add_utxo(bitcoin::OutPoint { txid: coinbase_tx.txid(), vout: 0 }, coinbase_tx.output[0].value);
+               nodes[1].wallet_source.add_utxo(bitcoin::OutPoint { txid: coinbase_tx.txid(), vout: 1 }, coinbase_tx.output[1].value);
+       }
+
        // Create some initial channels
        let (_, _, chan_id, funding_tx) =
-               create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 11_000_000);
+               create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 12_000_000);
        let funding_outpoint = OutPoint { txid: funding_tx.txid(), index: 0 };
        assert_eq!(funding_outpoint.to_channel_id(), chan_id);
 
@@ -1376,9 +1409,15 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan_id);
        assert_eq!(revoked_local_txn[0].input.len(), 1);
        assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, funding_tx.txid());
+       if anchors {
+               assert_eq!(revoked_local_txn[0].output[4].value, 11000); // to_self output
+       } else {
+               assert_eq!(revoked_local_txn[0].output[2].value, 11000); // to_self output
+       }
 
-       // The to-be-revoked commitment tx should have two HTLCs and an output for both sides
-       assert_eq!(revoked_local_txn[0].output.len(), 4);
+       // The to-be-revoked commitment tx should have two HTLCs, an output for each side, and an
+       // anchor output for each side if enabled.
+       assert_eq!(revoked_local_txn[0].output.len(), if anchors { 6 } else { 4 });
 
        claim_payment(&nodes[0], &[&nodes[1]], payment_preimage);
 
@@ -1390,16 +1429,25 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
        check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 1000000);
+       if anchors {
+               handle_bump_htlc_event(&nodes[1], 1);
+       }
        let revoked_htlc_success = {
                let mut txn = nodes[1].tx_broadcaster.txn_broadcast();
                assert_eq!(txn.len(), 1);
-               assert_eq!(txn[0].input.len(), 1);
-               assert_eq!(txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
-               check_spends!(txn[0], revoked_local_txn[0]);
+               assert_eq!(txn[0].input.len(), if anchors { 2 } else { 1 });
+               assert_eq!(txn[0].input[0].previous_output.vout, if anchors { 3 } else { 1 });
+               assert_eq!(txn[0].input[0].witness.last().unwrap().len(),
+                       if anchors { ACCEPTED_HTLC_SCRIPT_WEIGHT_ANCHORS } else { ACCEPTED_HTLC_SCRIPT_WEIGHT });
+               check_spends!(txn[0], revoked_local_txn[0], coinbase_tx);
                txn.pop().unwrap()
        };
+       let revoked_htlc_success_fee = chan_feerate * revoked_htlc_success.weight() as u64 / 1000;
 
        connect_blocks(&nodes[1], TEST_FINAL_CLTV);
+       if anchors {
+               handle_bump_htlc_event(&nodes[1], 2);
+       }
        let revoked_htlc_timeout = {
                let mut txn = nodes[1].tx_broadcaster.unique_txn_broadcast();
                assert_eq!(txn.len(), 2);
@@ -1409,7 +1457,7 @@ fn test_revoked_counterparty_htlc_tx_balances() {
                        txn.remove(0)
                }
        };
-       check_spends!(revoked_htlc_timeout, revoked_local_txn[0]);
+       check_spends!(revoked_htlc_timeout, revoked_local_txn[0], coinbase_tx);
        assert_ne!(revoked_htlc_success.input[0].previous_output, revoked_htlc_timeout.input[0].previous_output);
        assert_eq!(revoked_htlc_success.lock_time.0, 0);
        assert_ne!(revoked_htlc_timeout.lock_time.0, 0);
@@ -1421,21 +1469,41 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 1000000);
        let to_remote_conf_height = nodes[0].best_block_info().1 + ANTI_REORG_DELAY - 1;
 
-       let as_commitment_claim_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
-       assert_eq!(as_commitment_claim_txn.len(), 1);
-       check_spends!(as_commitment_claim_txn[0], revoked_local_txn[0]);
+       let revoked_to_self_claim = {
+               let mut as_commitment_claim_txn = nodes[0].tx_broadcaster.txn_broadcast();
+               assert_eq!(as_commitment_claim_txn.len(), if anchors { 2 } else { 1 });
+               if anchors {
+                       assert_eq!(as_commitment_claim_txn[0].input.len(), 1);
+                       assert_eq!(as_commitment_claim_txn[0].input[0].previous_output.vout, 4); // Separate to_remote claim
+                       check_spends!(as_commitment_claim_txn[0], revoked_local_txn[0]);
+                       assert_eq!(as_commitment_claim_txn[1].input.len(), 2);
+                       assert_eq!(as_commitment_claim_txn[1].input[0].previous_output.vout, 2);
+                       assert_eq!(as_commitment_claim_txn[1].input[1].previous_output.vout, 3);
+                       check_spends!(as_commitment_claim_txn[1], revoked_local_txn[0]);
+                       Some(as_commitment_claim_txn.remove(0))
+               } else {
+                       assert_eq!(as_commitment_claim_txn[0].input.len(), 3);
+                       assert_eq!(as_commitment_claim_txn[0].input[0].previous_output.vout, 2);
+                       assert_eq!(as_commitment_claim_txn[0].input[1].previous_output.vout, 0);
+                       assert_eq!(as_commitment_claim_txn[0].input[2].previous_output.vout, 1);
+                       check_spends!(as_commitment_claim_txn[0], revoked_local_txn[0]);
+                       None
+               }
+       };
 
        // The next two checks have the same balance set for A - even though we confirm a revoked HTLC
        // transaction our balance tracking doesn't use the on-chain value so the
        // `CounterpartyRevokedOutputClaimable` entry doesn't change.
+       let commitment_tx_fee = chan_feerate *
+               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
+       let anchor_outputs_value = if anchors { channel::ANCHOR_OUTPUT_VALUE_SATOSHI * 2 } else { 0 };
        let as_balances = sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
                        // to_remote output in B's revoked commitment
-                       amount_satoshis: 1_000_000 - 11_000 - 3_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 12_000 - 3_000 - commitment_tx_fee - anchor_outputs_value,
                        confirmation_height: to_remote_conf_height,
                }, Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in B's revoked commitment
-                       amount_satoshis: 10_000,
+                       amount_satoshis: 11_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 1
                        amount_satoshis: 3_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
@@ -1447,26 +1515,40 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        mine_transaction(&nodes[0], &revoked_htlc_success);
        let as_htlc_claim_tx = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
        assert_eq!(as_htlc_claim_tx.len(), 2);
+       assert_eq!(as_htlc_claim_tx[0].input.len(), 1);
        check_spends!(as_htlc_claim_tx[0], revoked_htlc_success);
-       check_spends!(as_htlc_claim_tx[1], revoked_local_txn[0]); // A has to generate a new claim for the remaining revoked
-                                                                 // outputs (which no longer includes the spent HTLC output)
+       // A has to generate a new claim for the remaining revoked outputs (which no longer includes the
+       // spent HTLC output)
+       assert_eq!(as_htlc_claim_tx[1].input.len(), if anchors { 1 } else { 2 });
+       assert_eq!(as_htlc_claim_tx[1].input[0].previous_output.vout, 2);
+       if !anchors {
+               assert_eq!(as_htlc_claim_tx[1].input[1].previous_output.vout, 0);
+       }
+       check_spends!(as_htlc_claim_tx[1], revoked_local_txn[0]);
 
        assert_eq!(as_balances,
                sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
        assert_eq!(as_htlc_claim_tx[0].output.len(), 1);
-       fuzzy_assert_eq(as_htlc_claim_tx[0].output[0].value,
-               3_000 - chan_feerate * (revoked_htlc_success.weight() + as_htlc_claim_tx[0].weight()) as u64 / 1000);
+       let as_revoked_htlc_success_claim_fee = chan_feerate * as_htlc_claim_tx[0].weight() as u64 / 1000;
+       if anchors {
+               // With anchors, B can pay for revoked_htlc_success's fee with additional inputs, rather
+               // than with the HTLC itself.
+               fuzzy_assert_eq(as_htlc_claim_tx[0].output[0].value,
+                       3_000 - as_revoked_htlc_success_claim_fee);
+       } else {
+               fuzzy_assert_eq(as_htlc_claim_tx[0].output[0].value,
+                       3_000 - revoked_htlc_success_fee - as_revoked_htlc_success_claim_fee);
+       }
 
        mine_transaction(&nodes[0], &as_htlc_claim_tx[0]);
        assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
                        // to_remote output in B's revoked commitment
-                       amount_satoshis: 1_000_000 - 11_000 - 3_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 12_000 - 3_000 - commitment_tx_fee - anchor_outputs_value,
                        confirmation_height: to_remote_conf_height,
                }, Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in B's revoked commitment
-                       amount_satoshis: 10_000,
+                       amount_satoshis: 11_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
                        amount_satoshis: 1_000,
                }, Balance::ClaimableAwaitingConfirmations {
@@ -1479,7 +1561,7 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        test_spendable_output(&nodes[0], &revoked_local_txn[0], false);
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output to B
-                       amount_satoshis: 10_000,
+                       amount_satoshis: 11_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
                        amount_satoshis: 1_000,
                }, Balance::ClaimableAwaitingConfirmations {
@@ -1492,7 +1574,7 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        test_spendable_output(&nodes[0], &as_htlc_claim_tx[0], false);
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in B's revoked commitment
-                       amount_satoshis: 10_000,
+                       amount_satoshis: 11_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
                        amount_satoshis: 1_000,
                }]),
@@ -1516,11 +1598,24 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        }
 
        mine_transaction(&nodes[0], &revoked_htlc_timeout);
-       let as_second_htlc_claim_tx = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
-       assert_eq!(as_second_htlc_claim_tx.len(), 2);
-
-       check_spends!(as_second_htlc_claim_tx[0], revoked_htlc_timeout);
-       check_spends!(as_second_htlc_claim_tx[1], revoked_local_txn[0]);
+       let (revoked_htlc_timeout_claim, revoked_to_self_claim) = {
+               let mut as_second_htlc_claim_tx = nodes[0].tx_broadcaster.txn_broadcast();
+               assert_eq!(as_second_htlc_claim_tx.len(), if anchors { 1 } else { 2 });
+               if anchors {
+                       assert_eq!(as_second_htlc_claim_tx[0].input.len(), 1);
+                       assert_eq!(as_second_htlc_claim_tx[0].input[0].previous_output.vout, 0);
+                       check_spends!(as_second_htlc_claim_tx[0], revoked_htlc_timeout);
+                       (as_second_htlc_claim_tx.remove(0), revoked_to_self_claim.unwrap())
+               } else {
+                       assert_eq!(as_second_htlc_claim_tx[0].input.len(), 1);
+                       assert_eq!(as_second_htlc_claim_tx[0].input[0].previous_output.vout, 0);
+                       check_spends!(as_second_htlc_claim_tx[0], revoked_htlc_timeout);
+                       assert_eq!(as_second_htlc_claim_tx[1].input.len(), 1);
+                       assert_eq!(as_second_htlc_claim_tx[1].input[0].previous_output.vout, 2);
+                       check_spends!(as_second_htlc_claim_tx[1], revoked_local_txn[0]);
+                       (as_second_htlc_claim_tx.remove(0), as_second_htlc_claim_tx.remove(0))
+               }
+       };
 
        // Connect blocks to finalize the HTLC resolution with the HTLC-Timeout transaction. In a
        // previous iteration of the revoked balance handling this would result in us "forgetting" that
@@ -1528,37 +1623,37 @@ fn test_revoked_counterparty_htlc_tx_balances() {
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in B's revoked commitment
-                       amount_satoshis: 10_000,
+                       amount_satoshis: 11_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
                        amount_satoshis: 1_000,
                }]),
                sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
-       mine_transaction(&nodes[0], &as_second_htlc_claim_tx[0]);
+       mine_transaction(&nodes[0], &revoked_htlc_timeout_claim);
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in B's revoked commitment
-                       amount_satoshis: 10_000,
+                       amount_satoshis: 11_000,
                }, Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: as_second_htlc_claim_tx[0].output[0].value,
+                       amount_satoshis: revoked_htlc_timeout_claim.output[0].value,
                        confirmation_height: nodes[0].best_block_info().1 + ANTI_REORG_DELAY - 1,
                }]),
                sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
-       mine_transaction(&nodes[0], &as_second_htlc_claim_tx[1]);
+       mine_transaction(&nodes[0], &revoked_to_self_claim);
        assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
                        // to_self output in B's revoked commitment
-                       amount_satoshis: as_second_htlc_claim_tx[1].output[0].value,
+                       amount_satoshis: revoked_to_self_claim.output[0].value,
                        confirmation_height: nodes[0].best_block_info().1 + ANTI_REORG_DELAY - 1,
                }, Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: as_second_htlc_claim_tx[0].output[0].value,
+                       amount_satoshis: revoked_htlc_timeout_claim.output[0].value,
                        confirmation_height: nodes[0].best_block_info().1 + ANTI_REORG_DELAY - 2,
                }]),
                sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 2);
-       test_spendable_output(&nodes[0], &as_second_htlc_claim_tx[0], false);
+       test_spendable_output(&nodes[0], &revoked_htlc_timeout_claim, false);
        connect_blocks(&nodes[0], 1);
-       test_spendable_output(&nodes[0], &as_second_htlc_claim_tx[1], false);
+       test_spendable_output(&nodes[0], &revoked_to_self_claim, false);
 
        assert_eq!(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances(), Vec::new());
 
@@ -1572,7 +1667,12 @@ fn test_revoked_counterparty_htlc_tx_balances() {
 }
 
 #[test]
-fn test_revoked_counterparty_aggregated_claims() {
+fn test_revoked_counterparty_htlc_tx_balances() {
+       do_test_revoked_counterparty_htlc_tx_balances(false);
+       do_test_revoked_counterparty_htlc_tx_balances(true);
+}
+
+fn do_test_revoked_counterparty_aggregated_claims(anchors: bool) {
        // Tests `get_claimable_balances` for revoked counterparty commitment transactions when
        // claiming with an aggregated claim transaction.
        let mut chanmon_cfgs = create_chanmon_cfgs(2);
@@ -1580,11 +1680,27 @@ fn test_revoked_counterparty_aggregated_claims() {
        // secret to the counterparty. However, because we always immediately take the revocation
        // secret from the keys_manager, we would panic at broadcast as we're trying to sign a
        // transaction which, from the point of view of our keys_manager, is revoked.
-       chanmon_cfgs[1].keys_manager.disable_revocation_policy_check = true;
+       chanmon_cfgs[0].keys_manager.disable_revocation_policy_check = true;
        let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
-       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let mut user_config = test_default_channel_config();
+       if anchors {
+               user_config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx = true;
+               user_config.manually_accept_inbound_channels = true;
+       }
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(user_config), Some(user_config)]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
+       let coinbase_tx = Transaction {
+               version: 2,
+               lock_time: PackedLockTime::ZERO,
+               input: vec![TxIn { ..Default::default() }],
+               output: vec![TxOut {
+                       value: Amount::ONE_BTC.to_sat(),
+                       script_pubkey: nodes[0].wallet_source.get_change_script().unwrap(),
+               }],
+       };
+       nodes[0].wallet_source.add_utxo(bitcoin::OutPoint { txid: coinbase_tx.txid(), vout: 0 }, coinbase_tx.output[0].value);
+
        let (_, _, chan_id, funding_tx) =
                create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 100_000_000);
        let funding_outpoint = OutPoint { txid: funding_tx.txid(), index: 0 };
@@ -1607,9 +1723,11 @@ fn test_revoked_counterparty_aggregated_claims() {
        // Now get the latest commitment transaction from A and then update the fee to revoke it
        let as_revoked_txn = get_local_commitment_txn!(nodes[0], chan_id);
 
-       assert_eq!(as_revoked_txn.len(), 2);
+       assert_eq!(as_revoked_txn.len(), if anchors { 1 } else { 2 });
        check_spends!(as_revoked_txn[0], funding_tx);
-       check_spends!(as_revoked_txn[1], as_revoked_txn[0]); // The HTLC-Claim transaction
+       if !anchors {
+               check_spends!(as_revoked_txn[1], as_revoked_txn[0]); // The HTLC-Claim transaction
+       }
 
        let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan_id);
        let chan_feerate = get_feerate!(nodes[0], nodes[1], chan_id) as u64;
@@ -1648,22 +1766,38 @@ fn test_revoked_counterparty_aggregated_claims() {
        check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 1000000);
        check_added_monitors!(nodes[1], 1);
 
-       let mut claim_txn: Vec<_> = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().drain(..).filter(|tx| tx.input.iter().any(|inp| inp.previous_output.txid == as_revoked_txn[0].txid())).collect();
-       // Currently the revoked commitment outputs are all claimed in one aggregated transaction
-       assert_eq!(claim_txn.len(), 1);
-       assert_eq!(claim_txn[0].input.len(), 3);
-       check_spends!(claim_txn[0], as_revoked_txn[0]);
+       let mut claim_txn = nodes[1].tx_broadcaster.txn_broadcast();
+       assert_eq!(claim_txn.len(), if anchors { 2 } else { 1 });
+       let revoked_to_self_claim = if anchors {
+               assert_eq!(claim_txn[0].input.len(), 1);
+               assert_eq!(claim_txn[0].input[0].previous_output.vout, 5); // Separate to_remote claim
+               check_spends!(claim_txn[0], as_revoked_txn[0]);
+               assert_eq!(claim_txn[1].input.len(), 2);
+               assert_eq!(claim_txn[1].input[0].previous_output.vout, 2);
+               assert_eq!(claim_txn[1].input[1].previous_output.vout, 3);
+               check_spends!(claim_txn[1], as_revoked_txn[0]);
+               Some(claim_txn.remove(0))
+       } else {
+               assert_eq!(claim_txn[0].input.len(), 3);
+               assert_eq!(claim_txn[0].input[0].previous_output.vout, 3);
+               assert_eq!(claim_txn[0].input[1].previous_output.vout, 0);
+               assert_eq!(claim_txn[0].input[2].previous_output.vout, 1);
+               check_spends!(claim_txn[0], as_revoked_txn[0]);
+               None
+       };
 
        let to_remote_maturity = nodes[1].best_block_info().1 + ANTI_REORG_DELAY - 1;
 
+       let commitment_tx_fee = chan_feerate *
+               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
+       let anchor_outputs_value = if anchors { channel::ANCHOR_OUTPUT_VALUE_SATOSHI * 2 } else { 0 };
        assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
                        // to_remote output in A's revoked commitment
                        amount_satoshis: 100_000 - 4_000 - 3_000,
                        confirmation_height: to_remote_maturity,
                }, Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in A's revoked commitment
-                       amount_satoshis: 1_000_000 - 100_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 100_000 - commitment_tx_fee - anchor_outputs_value,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 1
                        amount_satoshis: 4_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
@@ -1671,19 +1805,46 @@ fn test_revoked_counterparty_aggregated_claims() {
                }]),
                sorted_vec(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
-       // Confirm A's HTLC-Success tranasction which presumably raced B's claim, causing B to create a
+       // Confirm A's HTLC-Success transaction which presumably raced B's claim, causing B to create a
        // new claim.
-       mine_transaction(&nodes[1], &as_revoked_txn[1]);
+       if anchors {
+               mine_transaction(&nodes[0], &as_revoked_txn[0]);
+               check_closed_broadcast(&nodes[0], 1, true);
+               check_added_monitors(&nodes[0], 1);
+               check_closed_event!(&nodes[0], 1, ClosureReason::CommitmentTxConfirmed, false, [nodes[1].node.get_our_node_id()], 1_000_000);
+               handle_bump_htlc_event(&nodes[0], 1);
+       }
+       let htlc_success_claim = if anchors {
+               let mut txn = nodes[0].tx_broadcaster.txn_broadcast();
+               assert_eq!(txn.len(), 1);
+               check_spends!(txn[0], as_revoked_txn[0], coinbase_tx);
+               txn.pop().unwrap()
+       } else {
+               as_revoked_txn[1].clone()
+       };
+       mine_transaction(&nodes[1], &htlc_success_claim);
        expect_payment_sent(&nodes[1], claimed_payment_preimage, None, true, false);
-       let mut claim_txn_2: Vec<_> = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
-       claim_txn_2.sort_unstable_by_key(|tx| if tx.input.iter().any(|inp| inp.previous_output.txid == as_revoked_txn[0].txid()) { 0 } else { 1 });
+
+       let mut claim_txn_2 = nodes[1].tx_broadcaster.txn_broadcast();
        // Once B sees the HTLC-Success transaction it splits its claim transaction into two, though in
        // theory it could re-aggregate the claims as well.
        assert_eq!(claim_txn_2.len(), 2);
-       assert_eq!(claim_txn_2[0].input.len(), 2);
-       check_spends!(claim_txn_2[0], as_revoked_txn[0]);
-       assert_eq!(claim_txn_2[1].input.len(), 1);
-       check_spends!(claim_txn_2[1], as_revoked_txn[1]);
+       if anchors {
+               assert_eq!(claim_txn_2[0].input.len(), 1);
+               assert_eq!(claim_txn_2[0].input[0].previous_output.vout, 0);
+               check_spends!(claim_txn_2[0], &htlc_success_claim);
+               assert_eq!(claim_txn_2[1].input.len(), 1);
+               assert_eq!(claim_txn_2[1].input[0].previous_output.vout, 3);
+               check_spends!(claim_txn_2[1], as_revoked_txn[0]);
+       } else {
+               assert_eq!(claim_txn_2[0].input.len(), 1);
+               assert_eq!(claim_txn_2[0].input[0].previous_output.vout, 0);
+               check_spends!(claim_txn_2[0], as_revoked_txn[1]);
+               assert_eq!(claim_txn_2[1].input.len(), 2);
+               assert_eq!(claim_txn_2[1].input[0].previous_output.vout, 3);
+               assert_eq!(claim_txn_2[1].input[1].previous_output.vout, 1);
+               check_spends!(claim_txn_2[1], as_revoked_txn[0]);
+       }
 
        assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
                        // to_remote output in A's revoked commitment
@@ -1691,8 +1852,7 @@ fn test_revoked_counterparty_aggregated_claims() {
                        confirmation_height: to_remote_maturity,
                }, Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in A's revoked commitment
-                       amount_satoshis: 1_000_000 - 100_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 100_000 - commitment_tx_fee - anchor_outputs_value,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 1
                        amount_satoshis: 4_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
@@ -1708,8 +1868,7 @@ fn test_revoked_counterparty_aggregated_claims() {
 
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in A's revoked commitment
-                       amount_satoshis: 1_000_000 - 100_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 100_000 - commitment_tx_fee - anchor_outputs_value,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 1
                        amount_satoshis: 4_000,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 2
@@ -1720,47 +1879,75 @@ fn test_revoked_counterparty_aggregated_claims() {
                }]),
                sorted_vec(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
-       mine_transaction(&nodes[1], &claim_txn_2[1]);
+       mine_transaction(&nodes[1], &claim_txn_2[0]);
        let htlc_2_claim_maturity = nodes[1].best_block_info().1 + ANTI_REORG_DELAY - 1;
 
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in A's revoked commitment
-                       amount_satoshis: 1_000_000 - 100_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 100_000 - commitment_tx_fee - anchor_outputs_value,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 1
                        amount_satoshis: 4_000,
                }, Balance::ClaimableAwaitingConfirmations { // HTLC 2
-                       amount_satoshis: claim_txn_2[1].output[0].value,
+                       amount_satoshis: claim_txn_2[0].output[0].value,
                        confirmation_height: htlc_2_claim_maturity,
                }]),
                sorted_vec(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
        connect_blocks(&nodes[1], 5);
-       test_spendable_output(&nodes[1], &claim_txn_2[1], false);
+       test_spendable_output(&nodes[1], &claim_txn_2[0], false);
 
        assert_eq!(sorted_vec(vec![Balance::CounterpartyRevokedOutputClaimable {
                        // to_self output in A's revoked commitment
-                       amount_satoshis: 1_000_000 - 100_000 - chan_feerate *
-                               (channel::commitment_tx_base_weight(&channel_type_features) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+                       amount_satoshis: 1_000_000 - 100_000 - commitment_tx_fee - anchor_outputs_value,
                }, Balance::CounterpartyRevokedOutputClaimable { // HTLC 1
                        amount_satoshis: 4_000,
                }]),
                sorted_vec(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
 
-       mine_transaction(&nodes[1], &claim_txn_2[0]);
+       if anchors {
+               mine_transactions(&nodes[1], &[&claim_txn_2[1], revoked_to_self_claim.as_ref().unwrap()]);
+       } else {
+               mine_transaction(&nodes[1], &claim_txn_2[1]);
+       }
        let rest_claim_maturity = nodes[1].best_block_info().1 + ANTI_REORG_DELAY - 1;
 
-       assert_eq!(vec![Balance::ClaimableAwaitingConfirmations {
-                       amount_satoshis: claim_txn_2[0].output[0].value,
-                       confirmation_height: rest_claim_maturity,
-               }],
-               nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances());
+       if anchors {
+               assert_eq!(vec![Balance::ClaimableAwaitingConfirmations {
+                               amount_satoshis: claim_txn_2[1].output[0].value,
+                               confirmation_height: rest_claim_maturity,
+                       }, Balance::ClaimableAwaitingConfirmations {
+                               amount_satoshis: revoked_to_self_claim.as_ref().unwrap().output[0].value,
+                               confirmation_height: rest_claim_maturity,
+                       }],
+                       nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances());
+       } else {
+               assert_eq!(vec![Balance::ClaimableAwaitingConfirmations {
+                               amount_satoshis: claim_txn_2[1].output[0].value,
+                               confirmation_height: rest_claim_maturity,
+                       }],
+                       nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances());
+       }
 
        assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); // We shouldn't fail the payment until we spend the output
 
        connect_blocks(&nodes[1], 5);
        expect_payment_failed!(nodes[1], revoked_payment_hash, false);
-       test_spendable_output(&nodes[1], &claim_txn_2[0], false);
+       if anchors {
+               let events = nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events();
+               assert_eq!(events.len(), 2);
+               for (i, event) in events.into_iter().enumerate() {
+                       if let Event::SpendableOutputs { outputs, .. } = event {
+                               assert_eq!(outputs.len(), 1);
+                               let spend_tx = nodes[1].keys_manager.backing.spend_spendable_outputs(
+                                       &[&outputs[0]], Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(),
+                                       253, None, &Secp256k1::new()
+                               ).unwrap();
+                               check_spends!(spend_tx, if i == 0 { &claim_txn_2[1] } else { revoked_to_self_claim.as_ref().unwrap() });
+                       } else { panic!(); }
+               }
+       } else {
+               test_spendable_output(&nodes[1], &claim_txn_2[1], false);
+       }
        assert!(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances().is_empty());
 
        // Ensure that even if we connect more blocks, potentially replaying the entire chain if we're
@@ -1772,6 +1959,12 @@ fn test_revoked_counterparty_aggregated_claims() {
        assert!(nodes[1].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances().is_empty());
 }
 
+#[test]
+fn test_revoked_counterparty_aggregated_claims() {
+       do_test_revoked_counterparty_aggregated_claims(false);
+       do_test_revoked_counterparty_aggregated_claims(true);
+}
+
 fn do_test_restored_packages_retry(check_old_monitor_retries_after_upgrade: bool) {
        // Tests that we'll retry packages that were previously timelocked after we've restored them.
        let chanmon_cfgs = create_chanmon_cfgs(2);
@@ -2029,7 +2222,7 @@ fn test_yield_anchors_events() {
                &LowerBoundedFeeEstimator::new(node_cfgs[0].fee_estimator), &nodes[0].logger
        );
        get_monitor!(nodes[1], chan_id).provide_payment_preimage(
-               &payment_hash_1, &payment_preimage_1, &node_cfgs[0].tx_broadcaster,
+               &payment_hash_1, &payment_preimage_1, &node_cfgs[1].tx_broadcaster,
                &LowerBoundedFeeEstimator::new(node_cfgs[1].fee_estimator), &nodes[1].logger
        );
 
@@ -2522,3 +2715,113 @@ fn test_anchors_monitor_fixes_counterparty_payment_script_on_reload() {
        do_test_anchors_monitor_fixes_counterparty_payment_script_on_reload(false);
        do_test_anchors_monitor_fixes_counterparty_payment_script_on_reload(true);
 }
+
+#[cfg(not(feature = "_test_vectors"))]
+fn do_test_monitor_claims_with_random_signatures(anchors: bool, confirm_counterparty_commitment: bool) {
+       // Tests that our monitor claims will always use fresh random signatures (ensuring a unique
+       // wtxid) to prevent certain classes of transaction replacement at the bitcoin P2P layer.
+       let chanmon_cfgs = create_chanmon_cfgs(2);
+       let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+       let mut user_config = test_default_channel_config();
+       if anchors {
+               user_config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx = true;
+               user_config.manually_accept_inbound_channels = true;
+       }
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(user_config), Some(user_config)]);
+       let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       let coinbase_tx = Transaction {
+               version: 2,
+               lock_time: PackedLockTime::ZERO,
+               input: vec![TxIn { ..Default::default() }],
+               output: vec![
+                       TxOut {
+                               value: Amount::ONE_BTC.to_sat(),
+                               script_pubkey: nodes[0].wallet_source.get_change_script().unwrap(),
+                       },
+               ],
+       };
+       if anchors {
+               nodes[0].wallet_source.add_utxo(bitcoin::OutPoint { txid: coinbase_tx.txid(), vout: 0 }, coinbase_tx.output[0].value);
+       }
+
+       // Open a channel and route a payment. We'll let it timeout to claim it.
+       let (_, _, chan_id, funding_tx) = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+       route_payment(&nodes[0], &[&nodes[1]], 1_000_000);
+
+       let (closing_node, other_node) = if confirm_counterparty_commitment {
+               (&nodes[1], &nodes[0])
+       } else {
+               (&nodes[0], &nodes[1])
+       };
+
+       closing_node.node.force_close_broadcasting_latest_txn(&chan_id, &other_node.node.get_our_node_id()).unwrap();
+
+       // The commitment transaction comes first.
+       let commitment_tx = {
+               let mut txn = closing_node.tx_broadcaster.unique_txn_broadcast();
+               assert_eq!(txn.len(), 1);
+               check_spends!(txn[0], funding_tx);
+               txn.pop().unwrap()
+       };
+
+       mine_transaction(closing_node, &commitment_tx);
+       check_added_monitors!(closing_node, 1);
+       check_closed_broadcast!(closing_node, true);
+       check_closed_event!(closing_node, 1, ClosureReason::HolderForceClosed, [other_node.node.get_our_node_id()], 1_000_000);
+
+       mine_transaction(other_node, &commitment_tx);
+       check_added_monitors!(other_node, 1);
+       check_closed_broadcast!(other_node, true);
+       check_closed_event!(other_node, 1, ClosureReason::CommitmentTxConfirmed, [closing_node.node.get_our_node_id()], 1_000_000);
+
+       // If we update the best block to the new height before providing the confirmed transactions,
+       // we'll see another broadcast of the commitment transaction.
+       if anchors && !confirm_counterparty_commitment && nodes[0].connect_style.borrow().updates_best_block_first() {
+               let _ = nodes[0].tx_broadcaster.txn_broadcast();
+       }
+
+       // Then comes the HTLC timeout transaction.
+       if confirm_counterparty_commitment {
+               connect_blocks(&nodes[0], 5);
+               test_spendable_output(&nodes[0], &commitment_tx, false);
+               connect_blocks(&nodes[0], TEST_FINAL_CLTV - 5);
+       } else {
+               connect_blocks(&nodes[0], TEST_FINAL_CLTV);
+       }
+       if anchors && !confirm_counterparty_commitment {
+               handle_bump_htlc_event(&nodes[0], 1);
+       }
+       let htlc_timeout_tx = {
+               let mut txn = nodes[0].tx_broadcaster.txn_broadcast();
+               assert_eq!(txn.len(), 1);
+               let tx = if txn[0].input[0].previous_output.txid == commitment_tx.txid() {
+                       txn[0].clone()
+               } else {
+                       txn[1].clone()
+               };
+               check_spends!(tx, commitment_tx, coinbase_tx);
+               tx
+       };
+
+       // Check we rebroadcast it with a different wtxid.
+       nodes[0].chain_monitor.chain_monitor.rebroadcast_pending_claims();
+       if anchors && !confirm_counterparty_commitment {
+               handle_bump_htlc_event(&nodes[0], 1);
+       }
+       {
+               let mut txn = nodes[0].tx_broadcaster.txn_broadcast();
+               assert_eq!(txn.len(), 1);
+               assert_eq!(txn[0].txid(), htlc_timeout_tx.txid());
+               assert_ne!(txn[0].wtxid(), htlc_timeout_tx.wtxid());
+       }
+}
+
+#[cfg(not(feature = "_test_vectors"))]
+#[test]
+fn test_monitor_claims_with_random_signatures() {
+       do_test_monitor_claims_with_random_signatures(false, false);
+       do_test_monitor_claims_with_random_signatures(false, true);
+       do_test_monitor_claims_with_random_signatures(true, false);
+       do_test_monitor_claims_with_random_signatures(true, true);
+}