From c6e53f845a79916b67d7e75213ae03c0822fcc99 Mon Sep 17 00:00:00 2001
From: Hueter <kohsukemori@gmail.com>
Date: Sat, 6 Jul 2024 01:00:55 +0900
Subject: [PATCH] =?UTF-8?q?=E5=87=A6=E7=90=86=E3=81=AE=E5=8A=B9=E7=8E=87?=
 =?UTF-8?q?=E5=8C=96?=
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---
 testutil/random/ramdom.go | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/testutil/random/ramdom.go b/testutil/random/ramdom.go
index bdea144d..98a3c558 100644
--- a/testutil/random/ramdom.go
+++ b/testutil/random/ramdom.go
@@ -11,25 +11,23 @@ const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
 // この関数はmath/randが生成する擬似乱数を使用します
 func AlphaNumeric(t *testing.T, n int) string {
 	t.Helper()
+	b := make([]byte, n)
 
-	var result string
-	for i := 0; i < n; i++ {
-		result += string(letters[rand.IntN(len(letters))])
+	for i := range n {
+		b[i] = letters[rand.IntN(len(letters))]
 	}
 
-	return result
+	return string(b)
 }
 
 func Numeric(t *testing.T, max int) int {
 	t.Helper()
-	n := rand.IntN(max)
-	return n
+	return rand.IntN(max)
 }
 
 func Numeric64(t *testing.T, max int64) int64 {
 	t.Helper()
-	n := rand.Int64N(max)
-	return n
+	return rand.Int64N(max)
 }
 
 func AlphaNumericSlice(t *testing.T, length int, max int64) []string {