From: "David A. Black" <dblack@...>
Date: 2005-09-04T02:48:37+09:00
Subject: Re: Newbie Q: Self-Testing Ruby Files (Double Assignment to Constants)

Hi --

On Sun, 4 Sep 2005, ded wrote:

> I like to make class files self-testing and can do so with the
> following arrangement:
>
> ==================== Junk.rb ==========================
> Class Junk

class, not Class :-)

>  CONST = 'a value'
>  def initialize
>  end
> end
>
> # Unit tests
> if __FILE__ == $0
>    require 'test/TestJunk.rb'
> end
>
> ===================== test/TestJunk.rb ==================
> require 'test/unit'
> require 'Junk' unless defined?(CONST)

You've defined CONST inside Junk, but you're testing for it at the top
level.  Try this:

   require 'Junk' unless defined?(Junk::CONST)


David

-- 
David A. Black
dblack@wobblini.net