Subversion Repositories openrisc

// 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 text/template throughput,
// converting a large data structure with a simple template.

package go1

import (
        "bytes"
        "io/ioutil"
        "strings"
        "testing"
        "text/template"
)

// After removing \t and \n this generates identical output to
// json.Marshal, making it easy to test for correctness.
const tmplText = `
{
        "tree":{{template "node" .Tree}},
        "username":"{{.Username}}"
}
{{define "node"}}
{
        "name":"{{.Name}}",
        "kids":[
        {{range $i, $k := .Kids}}
                {{if $i}}
                        ,
                {{end}}
                {{template "node" $k}}
        {{end}}
        ],
        "cl_weight":{{.CLWeight}},
        "touches":{{.Touches}},
        "min_t":{{.MinT}},
        "max_t":{{.MaxT}},
        "mean_t":{{.MeanT}}
}
{{end}}
`

func stripTabNL(r rune) rune {
        if r == '\t' || r == '\n' {
                return -1
        }
        return r
}

var tmpl = template.Must(template.New("main").Parse(strings.Map(stripTabNL, tmplText)))

func init() {
        var buf bytes.Buffer
        if err := tmpl.Execute(&buf, &jsondata); err != nil {
                panic(err)
        }
        if !bytes.Equal(buf.Bytes(), jsonbytes) {
                println(buf.Len(), len(jsonbytes))
                panic("wrong output")
        }
}

func tmplexec() {
        if err := tmpl.Execute(ioutil.Discard, &jsondata); err != nil {
                panic(err)
        }
}

func BenchmarkTemplate(b *testing.B) {
        b.SetBytes(int64(len(jsonbytes)))
        for i := 0; i < b.N; i++ {
                tmplexec()
        }
}