From e81ec4a5adc1b4775ff650a7cd962ab4ea69e30f Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Sat, 31 Jul 2021 18:33:57 +0000
Subject: [PATCH] Check all outputs meet the dust threshold in check_spends!()

---
 lightning/src/ln/functional_test_utils.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lightning/src/ln/functional_test_utils.rs b/lightning/src/ln/functional_test_utils.rs
index 82c5d2901..6b46f6281 100644
--- a/lightning/src/ln/functional_test_utils.rs
+++ b/lightning/src/ln/functional_test_utils.rs
@@ -690,6 +690,14 @@ pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, '
 macro_rules! check_spends {
 	($tx: expr, $($spends_txn: expr),*) => {
 		{
+			$(
+			for outp in $spends_txn.output.iter() {
+				assert!(outp.value >= outp.script_pubkey.dust_value().as_sat(), "Input tx output didn't meet dust limit");
+			}
+			)*
+			for outp in $tx.output.iter() {
+				assert!(outp.value >= outp.script_pubkey.dust_value().as_sat(), "Spending tx output didn't meet dust limit");
+			}
 			let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
 				$(
 					if out_point.txid == $spends_txn.txid() {
-- 
2.39.5