From: Robert Klemme <bob.news@...>
Date: 2003-10-06T22:21:40+09:00
Subject: Re: compare two identically hashes fails


"Simon Strandgaard" <qj5nd7l02@sneakemail.com> schrieb im Newsbeitrag
news:pan.2003.10.06.13.17.01.151417@sneakemail.com...
> On Mon, 06 Oct 2003 15:59:59 +0200, Simon Strandgaard wrote:
>
> > On Mon, 06 Oct 2003 15:52:59 +0200, Simon Strandgaard wrote:
> >
> >> failure 1).. I compare 2 hashes with assert_equal.
> >> If I inspect the hashes they appear to be identical.
> >> But the == operator tells me they are different???
> >> I only use Ruby's native types for the things stored in
> >> the hash.  Question: Why does this assertion fail ?
> >
> >
> > I have found a simplification of my problem:
> >
> > def test_hash_compare
> > on_new = proc {|h, k| h[k] = []}
> > h1 = Hash.new(&on_new)
> > h1[1] = [["a", 2]]
> > h1[2] = []
> > h2 = {1=>[["a", 2]], 2=>[]}
>
>                 h1.default = nil
>                 h2.default = nil
>
>
> > assert_equal(h1, h2)
> > end
> >
> > How should I compare these 2 hashes, so it yields true ?
>
> Now it yields true.. thanks comp.lang.ruby :-)

You're welcome.  Sometimes expressing one's thoughts is already enough to
find the answer. :-)

Have fun

    robert