From bbd9ca16ae8c86925bac400a9504315fe8cc01c4 Mon Sep 17 00:00:00 2001
From: tahsinrahman <tahsynx@gmail.com>
Date: Wed, 3 Jun 2020 23:14:29 +0800
Subject: [PATCH] Add tests for error in InfoS

---
 klog.go      |  2 +-
 klog_test.go | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/klog.go b/klog.go
index ac3fbb0f..d339ea89 100644
--- a/klog.go
+++ b/klog.go
@@ -802,7 +802,7 @@ func kvListFormat(b *bytes.Buffer, keysAndValues ...interface{}) {
 		b.WriteByte(' ')
 
 		switch v.(type) {
-		case string:
+		case string, error:
 			b.WriteString(fmt.Sprintf("%s=%q", k, v))
 		default:
 			if _, ok := v.(fmt.Stringer); ok {
diff --git a/klog_test.go b/klog_test.go
index 40a0ca3c..f46ba915 100644
--- a/klog_test.go
+++ b/klog_test.go
@@ -18,6 +18,7 @@ package klog
 
 import (
 	"bytes"
+	"errors"
 	"flag"
 	"fmt"
 	"io/ioutil"
@@ -792,6 +793,16 @@ func TestInfoS(t *testing.T) {
 			format:     "I0102 15:04:05.067890    1234 klog_test.go:%d] \"test\" replicaNum=20\n",
 			keysValues: []interface{}{"replicaNum", 20},
 		},
+		{
+			msg:        "test",
+			format:     "I0102 15:04:05.067890    1234 klog_test.go:%d] \"test\" err=\"test error\"\n",
+			keysValues: []interface{}{"err", errors.New("test error")},
+		},
+		{
+			msg:        "test",
+			format:     "I0102 15:04:05.067890    1234 klog_test.go:%d] \"test\" err=\"test error\"\n",
+			keysValues: []interface{}{"err", errors.New("test error")},
+		},
 	}
 
 	for _, data := range testDataInfo {