public/go/tests/func/nrune_test/main.go

package main

import (
	"math/rand"

	student "student"

	"lib"
)

func nRune(s string, n int) rune {
	if n > len(s) || n < 1 {
		return 0
	}
	runes := []rune(s)
	return runes[n-1]
}

func main() {
	type node struct {
		word string
		n    int
	}

	table := []node{}

	for i := 0; i < 30; i++ {
		wordToInput := lib.RandASCII()
		val := node{
			word: wordToInput,
			n:    rand.Intn(len(wordToInput)) + 1,
		}
		table = append(table, val)
	}

	table = append(table,
		node{word: "Hello!", n: 3},
		node{word: "Salut!", n: 2},
		node{word: "Ola!", n: 4},
		node{word: "♥01!", n: 1},
		node{word: "Not", n: 6},
		node{word: "Also not", n: 9},
		node{word: "Tree house", n: 5},
		node{word: "Whatever", n: 0},
		node{word: "Whatshisname", n: -2},
	)

	for _, arg := range table {
		lib.Challenge("NRune", student.NRune, nRune, arg.word, arg.n)
	}
}