From 58a2fa9868b226618085eb96d07f8aa02a83db90 Mon Sep 17 00:00:00 2001
From: Conner Fromknecht <conner@lightning.engineering>
Date: Fri, 19 Apr 2019 01:57:31 -0700
Subject: [PATCH] txscript: Add benchmark for IsPayToWitnessScriptHash

---
 txscript/bench_test.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/txscript/bench_test.go b/txscript/bench_test.go
index de6636d9e7..529d32f7ff 100644
--- a/txscript/bench_test.go
+++ b/txscript/bench_test.go
@@ -297,3 +297,18 @@ func BenchmarkIsWitnessPubKeyHash(b *testing.B) {
 		_ = IsPayToWitnessPubKeyHash(script)
 	}
 }
+
+// BenchmarkIsWitnessScriptHash benchmarks how long it takes to analyze a very
+// large script to determine if it is a standard witness script hash script.
+func BenchmarkIsWitnessScriptHash(b *testing.B) {
+	script, err := genComplexScript()
+	if err != nil {
+		b.Fatalf("failed to create benchmark script: %v", err)
+	}
+
+	b.ResetTimer()
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		_ = IsPayToWitnessScriptHash(script)
+	}
+}