From: Joe Van Dyk <joevandyk@...>
Date: 2005-08-27T06:43:29+09:00
Subject: Re: stringio as file

On 8/26/05, Joe Van Dyk <joevandyk@gmail.com> wrote:
> On 8/26/05, Joe Van Dyk <joevandyk@gmail.com> wrote:
> > StringIO can be used as a standin for a File object when testing, right?
> >
> > require 'stringio'
> >
> > def expects_file file
> >   file.open
> >   puts file.gets
> > end
> >
> > s = StringIO.new "Hello World\nHow are you?"
> > expects_file s
> >
> > What don't I understand here?
> 
> Ah, nevermind.  I forgot File.open is a class method.

This still confuses me though:

require 'stringio'

a = StringIO.new
a << "Hello\n"
a << "World"

puts a.gets   # prints nil