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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"
)
var (
gobbytes []byte
gobdata *JSONResponse
)
func init() {
gobdata = gobResponse(&jsondata)
var buf bytes.Buffer
if err := gob.NewEncoder(&buf).Encode(gobdata); err != nil {
panic(err)
}
gobbytes = buf.Bytes()
var r JSONResponse
if err := gob.NewDecoder(bytes.NewBuffer(gobbytes)).Decode(&r); err != nil {
panic(err)
}
if !reflect.DeepEqual(gobdata, &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")
}
}
// 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() {
if gobbytes == nil {
panic("gobdata not initialized")
}
var r JSONResponse
if err := gob.NewDecoder(bytes.NewBuffer(gobbytes)).Decode(&r); err != nil {
panic(err)
}
_ = r
}
func gobenc() {
if err := gob.NewEncoder(io.Discard).Encode(&gobdata); err != nil {
panic(err)
}
}
func BenchmarkGobDecode(b *testing.B) {
b.SetBytes(int64(len(gobbytes)))
for i := 0; i < b.N; i++ {
gobdec()
}
}
func BenchmarkGobEncode(b *testing.B) {
b.SetBytes(int64(len(gobbytes)))
for i := 0; i < b.N; i++ {
gobenc()
}
}
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