string_con_test.go

// RUN: go test -run=XXX -bench=. string_con_test.go
// OUTOUT:
/*
PASS
BenchmarkNaiveConact	2000000000	         0.64 ns/op
BenchmarkJoinsConact	 3000000	       432 ns/op
BenchmarkBuffer	 3000000	       541 ns/op
ok  	command-line-arguments	5.262s
*/
package main

import (
	"testing"
	"strings"
"bytes"

)

func BenchmarkNaiveConact(b *testing.B) {
	for i := 0; i < b.N; i++ {
		_ = "/games/icons"+"000/000/000"+"/dimension_"+"100_100"+".jpg?"+"123123123123"
	}
}

func BenchmarkJoinsConact(b *testing.B) {
	for i := 0; i < b.N; i++ {
		_ = strings.Join([]string{"/games/icons","000/000/000","/dimension_","100_100",".jpg?","123123123123"}, "")
	}
}

func BenchmarkBuffer(b *testing.B) {
	for i := 0; i < b.N; i++ {
		var buffer bytes.Buffer
                buffer.WriteString("/games/icons")
                buffer.WriteString("000/000/000")
                buffer.WriteString("/dimension_")
                buffer.WriteString("100_100")
                buffer.WriteString(".jpg?")
                buffer.WriteString("123123123123")
		_ = buffer.String()
	}
}