package tins2020_test

import (
	"math/rand"
	"testing"
)

type native struct{ a, b, c, d int }

type similar struct{ a, b, c, d int }

func (s similar) toNative() native { return native{s.a, s.b, s.c, s.d} }

type wrapper struct{ native }

func (w wrapper) toNative() native { return w.native }

func nativeFunction(n native) int { return n.a + n.b + n.c + n.d }

func BenchmarkNative(b *testing.B) {
	var sum int
	for i := 0; i < b.N; i++ {
		n := native{rand.Int(), rand.Int(), rand.Int(), rand.Int()}
		sum += nativeFunction(n)
	}
}

func BenchmarkSimilar(b *testing.B) {
	var sum int
	for i := 0; i < b.N; i++ {
		s := similar{rand.Int(), rand.Int(), rand.Int(), rand.Int()}
		sum += nativeFunction(s.toNative())
	}
}

func BenchmarkWrapper(b *testing.B) {
	var sum int
	for i := 0; i < b.N; i++ {
		w := wrapper{native{rand.Int(), rand.Int(), rand.Int(), rand.Int()}}
		sum += nativeFunction(w.toNative())
	}
}