From cf07d42337b2231aa22c4be6081c9134fa39b239 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=82=96=E6=97=B8?= <muma.378@163.com>
Date: Thu, 24 Jun 2021 09:43:09 +0800
Subject: [PATCH] removes unused libraries

---
 test/utils/deployment.go  | 1 -
 test/utils/pki_helpers.go | 6 +++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/test/utils/deployment.go b/test/utils/deployment.go
index 06725c1ba1f..1977975cc93 100644
--- a/test/utils/deployment.go
+++ b/test/utils/deployment.go
@@ -18,7 +18,6 @@ package utils
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"time"
 
diff --git a/test/utils/pki_helpers.go b/test/utils/pki_helpers.go
index f944865d772..06c3290493d 100644
--- a/test/utils/pki_helpers.go
+++ b/test/utils/pki_helpers.go
@@ -23,7 +23,7 @@ import (
 	"crypto/x509"
 	"crypto/x509/pkix"
 	"encoding/pem"
-	"errors"
+	"fmt"
 	"math"
 	"math/big"
 	"time"
@@ -58,10 +58,10 @@ func NewSignedCert(cfg *certutil.Config, key crypto.Signer, caCert *x509.Certifi
 		return nil, err
 	}
 	if len(cfg.CommonName) == 0 {
-		return nil, errors.New("must specify a CommonName")
+		return nil, fmt.Errorf("must specify a CommonName")
 	}
 	if len(cfg.Usages) == 0 {
-		return nil, errors.New("must specify at least one ExtKeyUsage")
+		return nil, fmt.Errorf("must specify at least one ExtKeyUsage")
 	}
 
 	certTmpl := x509.Certificate{