main_test.go

package main

import (
	"reflect"
	"strconv"
	"testing"
)

const numOfValues = 100

var (
	s1 = make([]string, numOfValues)
	s2 = make([]string, numOfValues)
)

func init() {
	for i := 0; i < numOfValues; i++ {
		s := strconv.Itoa(i)
		s1[i] = s
		s2[i] = s
	}
}

func TestDeepEqual(t *testing.T) {
	if !reflect.DeepEqual(s1, s2) {
		t.Error("DeepEqual(s1, s2) should be true")
	}
}

func TestLoopEqual(t *testing.T) {
	if !LoopEqual(s1, s2) {
		t.Error("LoopEqual(s1, s2) should be true")
	}
}

func BenchmarkDeepEqual(b *testing.B) {
	for i := 0; i < b.N; i++ {
		reflect.DeepEqual(s1, s2)
	}
}

func BenchmarkLoopEqual(b *testing.B) {
	for i := 0; i < b.N; i++ {
		LoopEqual(s1, s2)
	}
}

func LoopEqual(a, b []string) bool {
	al, bl := len(a), len(b)
	if al != bl {
		return false
	}
	for i := 0; i < al; i++ {
		if a[i] != b[i] {
			return false
		}
	}
	return true
}

result.txt

$ go test -bench . -benchmem
PASS
BenchmarkDeepEqual	  100000	     19983 ns/op	    3312 B/op	     203 allocs/op
BenchmarkLoopEqual	 3000000	       433 ns/op	       0 B/op	       0 allocs/op
ok  	github.com/yosssi/comp_slice	3.940s