chore(util): add DeepCopyIntToStringMap to util

pkg/util/general/deepcopy.go

@@ -75,3 +75,15 @@ func DeepCopyIntToInt64Map(origin map[int]int64) map[int]int64 {
 	}
 	return res
 }
+
+func DeepCopyIntToStringMap(origin map[int]string) map[int]string {
+	if origin == nil {
+		return nil
+	}
+
+	res := make(map[int]string, len(origin))
+	for key, val := range origin {
+		res[key] = val
+	}
+	return res
+}

pkg/util/general/deepcopy_test.go

@@ -19,6 +19,8 @@ package general
 import (
 	"reflect"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestDeepCopyIntToIntMap(t *testing.T) {
@@ -58,3 +60,39 @@ func TestDeepCopyIntToIntMap(t *testing.T) {
 		})
 	}
 }
+
+func TestDeepCopyIntToStringMap(t *testing.T) {
+	t.Parallel()
+	type args struct {
+		origin map[int]string
+	}
+	tests := []struct {
+		name string
+		args args
+		want map[int]string
+	}{
+		{
+			name: "deep copy int to string map normally",
+			args: args{
+				origin: map[int]string{1: "1"},
+			},
+			want: map[int]string{
+				1: "1",
+			},
+		},
+		{
+			name: "deep copy nil int to int map",
+			args: args{
+				origin: nil,
+			},
+			want: nil,
+		},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			assert.Equalf(t, tt.want, DeepCopyIntToStringMap(tt.args.origin), "DeepCopyIntToStringMap(%v)", tt.args.origin)
+		})
+	}
+}