From 6c6c08ca506c05111f512ee1db43c479b0b017f9 Mon Sep 17 00:00:00 2001
From: conduition <conduition@proton.me>
Date: Fri, 10 Nov 2023 17:19:33 +0000
Subject: [PATCH] add second test case

---
 bitcoin/src/blockdata/fee_rate.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bitcoin/src/blockdata/fee_rate.rs b/bitcoin/src/blockdata/fee_rate.rs
index 84bfc8e5..aa8d3c44 100644
--- a/bitcoin/src/blockdata/fee_rate.rs
+++ b/bitcoin/src/blockdata/fee_rate.rs
@@ -221,6 +221,11 @@ mod tests {
 
         let fee = FeeRate(10).checked_mul_by_weight(Weight::MAX);
         assert!(fee.is_none());
+
+        let weight = Weight::from_vb(3).unwrap();
+        let fee_rate = FeeRate::from_sat_per_vb(3).unwrap();
+        let fee = fee_rate.checked_mul_by_weight(weight).unwrap();
+        assert_eq!(Amount::from_sat(9), fee);
     }
 
     #[test]