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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This benchmark tests gob encoding and decoding performance.
package go1
import (
"bytes"
"encoding/gob"
"encoding/json"
"io"
"log"
"reflect"
"testing"
)
func makeGob(jsondata *JSONResponse) (data *JSONResponse, b []byte) {
data = gobResponse(jsondata)
var buf bytes.Buffer
if err := gob.NewEncoder(&buf).Encode(data); err != nil {
panic(err)
}
b = buf.Bytes()
var r JSONResponse
if err := gob.NewDecoder(bytes.NewBuffer(b)).Decode(&r); err != nil {
panic(err)
}
if !reflect.DeepEqual(data, &r) {
log.Printf("%v\n%v", jsondata, r)
b, _ := json.Marshal(&jsondata)
br, _ := json.Marshal(&r)
log.Printf("%s\n%s\n", b, br)
panic("gob: encode+decode lost data")
}
return
}
// gob turns [] into null, so make a copy of the data structure like that
func gobResponse(r *JSONResponse) *JSONResponse {
return &JSONResponse{gobNode(r.Tree), r.Username}
}
func gobNode(n *JSONNode) *JSONNode {
n1 := new(JSONNode)
*n1 = *n
if len(n1.Kids) == 0 {
n1.Kids = nil
} else {
for i, k := range n1.Kids {
n1.Kids[i] = gobNode(k)
}
}
return n1
}
func gobdec(b []byte) {
var r JSONResponse
if err := gob.NewDecoder(bytes.NewBuffer(b)).Decode(&r); err != nil {
panic(err)
}
_ = r
}
func gobenc(data *JSONResponse) {
if err := gob.NewEncoder(io.Discard).Encode(data); err != nil {
panic(err)
}
}
func BenchmarkGobDecode(b *testing.B) {
jsonbytes := makeJsonBytes()
jsondata := makeJsonData(jsonbytes)
_, bytes := makeGob(jsondata)
b.ResetTimer()
b.SetBytes(int64(len(bytes)))
for i := 0; i < b.N; i++ {
gobdec(bytes)
}
}
func BenchmarkGobEncode(b *testing.B) {
jsonbytes := makeJsonBytes()
jsondata := makeJsonData(jsonbytes)
data, bytes := makeGob(jsondata)
b.ResetTimer()
b.SetBytes(int64(len(bytes)))
for i := 0; i < b.N; i++ {
gobenc(data)
}
}
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