Benchmarking go:embed directive

go_embed_bench.go

package main

import (
	"embed"
	"io/ioutil"
	"testing"
)

//go:embed citadel_of_the_star_lords.txt
var f embed.FS

//go:embed citadel_of_the_star_lords.txt
var content string

//go:embed citadel_of_the_star_lords.txt
var bytes []byte

func mostCommonWordEmbed() int {
	data, _ := f.ReadFile("citadel_of_the_star_lords.txt")
	return findMostFrequentWord(string(data))
}

func mostCommonWordFs() int {
	data, _ := ioutil.ReadFile("citadel_of_the_star_lords.txt")
	return findMostFrequentWord(string(data))
}

func mostCommonWordString() int {
	return findMostFrequentWord(content)
}

func mostCommonWordBytes() int {
	return findMostFrequentWord(string(bytes))
}

func findMostFrequentWord(text string) int {
	return len(text)
}

func BenchmarkCommonWordEmbedded(b *testing.B) {
	total := 0
	for i := 0; i < b.N; i++ {
		total += mostCommonWordEmbed()
	}
}

func BenchmarkCommonWordFs(b *testing.B) {
	total := 0
	for i := 0; i < b.N; i++ {
		total += mostCommonWordFs()
	}
}

func BenchmarkCommonWordString(b *testing.B) {
	total := 0
	for i := 0; i < b.N; i++ {
		total += mostCommonWordString()
	}
}

func BenchmarkCommonWordBytes(b *testing.B) {
	total := 0
	for i := 0; i < b.N; i++ {
		total += mostCommonWordBytes()
	}
}