From: Martin DeMello <martindemello@...>
Date: 2008-04-12T02:08:55+09:00
Subject: Re: how to create random object to a particular ruby object ?

On Fri, Apr 11, 2008 at 2:17 AM, Pokkai Dokkai <bad_good_lion@yahoo.com> wrote:
> how to create random object  to a particular ruby object ?
>
>  for example i want like this
>
>  rand(Fixnum)   --> 345 (randomly)
>  rand(Float)    --> 3877.5545(randomly)
>  rand(String)   --> "sfskgksf" (randomly)
>  rand(boolean)  --> 0(randomly)

The cleanest way is to add the class method make_random to all your
classes. For example

class String
  def self.make_random(length = nil)
    length ||= rand(15) # well, we have to pick *something*
    (0...length).map { (rand(96) + 32).chr } .join("")
  end
end

irb(main):006:0> String.make_random
=> "Y3+W%2("
irb(main):007:0> String.make_random(6)
=> "I9K@Nr"
irb(main):008:0> String.make_random(10)

martin