From 0a3a97022ee47014ab5bf6064353b990072c22f4 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Wed, 6 Dec 2017 11:37:09 +0100
Subject: [PATCH] crypto: fix BenchmarkSha3

The extra output confuses tools like benchstat.
---
 crypto/crypto_test.go | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/crypto/crypto_test.go b/crypto/crypto_test.go
index 92302948ed..b4c441e5f7 100644
--- a/crypto/crypto_test.go
+++ b/crypto/crypto_test.go
@@ -20,12 +20,10 @@ import (
 	"bytes"
 	"crypto/ecdsa"
 	"encoding/hex"
-	"fmt"
 	"io/ioutil"
 	"math/big"
 	"os"
 	"testing"
-	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 )
@@ -44,13 +42,9 @@ func TestKeccak256Hash(t *testing.T) {
 
 func BenchmarkSha3(b *testing.B) {
 	a := []byte("hello world")
-	amount := 1000000
-	start := time.Now()
-	for i := 0; i < amount; i++ {
+	for i := 0; i < b.N; i++ {
 		Keccak256(a)
 	}
-
-	fmt.Println(amount, ":", time.Since(start))
 }
 
 func TestSign(t *testing.T) {