Benchmark test in Go

hash_test.go

package test

import (
    "crypto/md5"
    "crypto/sha1"
    "crypto/sha256"
    "crypto/sha512"
    "hash"
    "hash/fnv"
    "log"
    "math/rand"
    "testing"
)

const (
    K        = 1024
    DataSize = 1 * K
)

var data = make([]byte, DataSize)

func init() {
    _, err := rand.Read(data)
    if err != nil {
        log.Fatal(err)
    }
}

func cal(t *testing.B, h hash.Hash, n int) {
    t.ResetTimer()
    for i := 0; i < t.N; i++ {
        h.Sum(data)
    }
}

func BenchmarkFNV32(t *testing.B) {
    cal(t, fnv.New32(), DataSize)
}

func BenchmarkFNV64(t *testing.B) {
    cal(t, fnv.New64(), DataSize)
}

func BenchmarkFNV128(t *testing.B) {
    cal(t, fnv.New128(), DataSize)
}

func BenchmarkMD5(t *testing.B) {
    cal(t, md5.New(), DataSize)
}

func BenchmarkSHA1(t *testing.B) {
    cal(t, sha1.New(), DataSize)
}

func BenchmarkSHA224(t *testing.B) {
    cal(t, sha256.New224(), DataSize)
}

func BenchmarkSHA256(t *testing.B) {
    cal(t, sha256.New(), DataSize)
}

func BenchmarkSHA512(t *testing.B) {
    cal(t, sha512.New(), DataSize)
}