From f961f3c0eca4e9b175761756f48699012b63d70a Mon Sep 17 00:00:00 2001
From: yancy <yancy@yancy.lol>
Date: Tue, 26 Nov 2024 14:55:49 -0600
Subject: [PATCH] Add test

Test that behavior of this function as it interacts with predict_weight_internal
---
 bitcoin/src/blockdata/transaction.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/bitcoin/src/blockdata/transaction.rs b/bitcoin/src/blockdata/transaction.rs
index 9e2038096..137110f4f 100644
--- a/bitcoin/src/blockdata/transaction.rs
+++ b/bitcoin/src/blockdata/transaction.rs
@@ -1964,6 +1964,21 @@ mod tests {
         );
     }
 
+    #[test]
+    fn weight_prediction_const_from_slices() {
+        let predict = [
+            InputWeightPrediction::P2WPKH_MAX,
+            InputWeightPrediction::NESTED_P2WPKH_MAX,
+            InputWeightPrediction::P2PKH_COMPRESSED_MAX,
+            InputWeightPrediction::P2PKH_UNCOMPRESSED_MAX,
+            InputWeightPrediction::P2TR_KEY_DEFAULT_SIGHASH,
+            InputWeightPrediction::P2TR_KEY_NON_DEFAULT_SIGHASH
+        ];
+
+        let weight = predict_weight_from_slices(&predict, &[1]);
+        assert_eq!(weight, Weight::from_wu(2493));
+    }
+
     #[test]
     fn sequence_debug_output() {
         let seq = Sequence::from_seconds_floor(1000);