f add debug_assert

Author: valentinewallace

lightning/src/ln/channelmanager.rs

@@ -3935,6 +3935,8 @@ where
 											htlcs.iter_mut().for_each(|htlc| htlc.total_value_received = Some(amount_msat));
 											let counterparty_skimmed_fee_msat = htlcs.iter()
 												.map(|htlc| htlc.counterparty_skimmed_fee_msat.unwrap_or(0)).sum();
+											debug_assert!(total_value.saturating_sub(amount_msat) <=
+												counterparty_skimmed_fee_msat);
 											new_events.push_back((events::Event::PaymentClaimable {
 												receiver_node_id: Some(receiver_node_id),
 												payment_hash,