From 2de1b73d122516c0c194698328e4f3fb7d87382d Mon Sep 17 00:00:00 2001
From: Dave Collins <davec@conformal.com>
Date: Thu, 20 Mar 2014 10:46:03 -0500
Subject: [PATCH] Add a benchmark for TxSha.

This commit adds a benchmark for the TxSha function of a MsgTx.
---
 bench_test.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/bench_test.go b/bench_test.go
index d127c328..dda4fb14 100644
--- a/bench_test.go
+++ b/bench_test.go
@@ -281,3 +281,12 @@ func BenchmarkWriteBlockHeader(b *testing.B) {
 		btcwire.TstWriteBlockHeader(ioutil.Discard, 0, &header)
 	}
 }
+
+// BenchmarkTxSha performs a benchmark on how long it takes to hash a
+// transaction.
+func BenchmarkTxSha(b *testing.B) {
+	tx := btcwire.GenesisBlock.Transactions[0]
+	for i := 0; i < b.N; i++ {
+		tx.TxSha()
+	}
+}