alias/bench_test.go at master · encryptio/alias · GitHub

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// Copyright (c) 2012, Jack Christopher Kastorff
// All rights reserved.
// BSD Licensed, see LICENSE for details.

package alias

import (
	"math/rand"
	"testing"
)

func benchGen(b *testing.B, size int) {
	b.StopTimer()

	arr := make([]float64, size)
	for i := 0; i < size; i++ {
		arr[i] = rand.Float64()
	}

	a, err := New(arr)
	if err != nil {
		b.Error("Got an error during creation:", err)
	}

	rng := rand.New(rand.NewSource(99))

	b.StartTimer()

	for i := 0; i < b.N; i++ {
		a.Gen(rng)
	}
}

func BenchmarkGen5(b *testing.B) {
	benchGen(b, 5)
}

func BenchmarkGen50(b *testing.B) {
	benchGen(b, 50)
}

func BenchmarkGen500(b *testing.B) {
	benchGen(b, 500)
}

func BenchmarkGen5000(b *testing.B) {
	benchGen(b, 5000)
}

func BenchmarkGen50000(b *testing.B) {
	benchGen(b, 50000)
}

func benchCreationSize(b *testing.B, size int) {
	b.StopTimer()

	arr := make([]float64, size)
	for i := 0; i < size; i++ {
		arr[i] = rand.Float64()
	}

	b.StartTimer()

	for i := 0; i < b.N; i++ {
		New(arr)
	}
}

func BenchmarkCreate5(b *testing.B) {
	benchCreationSize(b, 5)
}

func BenchmarkCreate50(b *testing.B) {
	benchCreationSize(b, 50)
}

func BenchmarkCreate500(b *testing.B) {
	benchCreationSize(b, 500)
}

func BenchmarkCreate5000(b *testing.B) {
	benchCreationSize(b, 5000)
}

func BenchmarkCreate50000(b *testing.B) {
	benchCreationSize(b, 50000)
}