package rands

import (
	"fmt"
	"testing"
)

func TestWeightedChoice(t *testing.T) {
	choices := []Choice[int, int]{
		{Weight: 10, Item: 300},
		{Weight: 1, Item: 100},
		{Weight: 5, Item: 200},
	}
	times := make(map[int]int)
	for range 100000 {
		c, ok := WeightedChoice(choices)
		if !ok {
			t.Error("weight choice error")
			return
		}
		times[c.Item]++
	}
	fmt.Println(times) // map[100:6156 200:31280 300:62564]
}