From: Dave Thomas <Dave@...>
Date: 2002-07-25T22:20:32+09:00
Subject: Re: [PATCH] object.c ruby.h (fwd)

GOTO Kentaro <gotoken@notwork.org> writes:

> > I'd expect to be able to test it with an assert(), but currently I
> > can't without writing extra (and distracting) stuff.
> 
> Indeed assert() of Test::Unit::Assertions does not test true/false.  
> I think that the assert() is too generic and that can blur the meaning
> of an assertion.  Perhaps true-false-test may prevent abuse of
> assert() in rubyunit.

Hmm - I differ here. I'd expect assert() to work the same way as 'if'
and 'unless' do, so that

    assert(x)

would succeed and fail the same as

    raise "assertion failed" unless x




> Something built-in to get truth value of each object may help explain
> the boolean aspect in Ruby.
> 
>   % ruby -e '
>   module Kernel
>     def truth() !!self end
>   end

Perhaps #to_b?

(But then we'd need a Boolean type for the name to make sense... :))


Dave