// Package random holds a few functions for working with random numbers
package random

import "math/rand"

// String create a random string for test purposes
func String(n int) string {
	const (
		vowel     = "aeiou"
		consonant = "bcdfghjklmnpqrstvwxyz"
		digit     = "0123456789"
	)
	pattern := []string{consonant, vowel, consonant, vowel, consonant, vowel, consonant, digit}
	out := make([]byte, n)
	p := 0
	for i := range out {
		source := pattern[p]
		p = (p + 1) % len(pattern)
		out[i] = source[rand.Intn(len(source))]
	}
	return string(out)
}