From: Peter Fitzgibbons <peter.fitzgibbons@...>
Date: 2005-10-18T00:26:43+09:00
Subject: Re: Unit Testing with REXML questions

On 10/17/05, umitanuki <yasagure@umitanuki.net> wrote:
> Hi Jeff, and Peter,
>
> I also got "5" with this code:
>
> xml.elements['/a/d'].size
>
> And then I checked your code like:
>
> xml.elements('/a/d') ,
>
> it failed with message
> " in 'elements': wrong number of arguments(1 for 0) (Argument Error) ".
>
> Is it the difference of REXML version??
> My REXML is 3.1.2.1.
>
> Regards,
>
>
> umitanuki
>
>
> Jeff Wood wrote:
> > Peter,
> >
> > Actually... i don't understand why you got "5" when you did size...
> > that was one element.
> >
> > And yes, an element contains it's children ... but they aren't going
> > to be iterated over unless you did something like /a/d/*  or something
> > like that.
> >
> > what do you get when you run
> >
> > count = 0 ; xml.elements( '/a/d' ).each { count += 1 ) ; puts count
> >
> > ... of course umitanuki's to_a should also simply return an array of 1 length.
> >
> > j.
> >
> > On 10/16/05, umitanuki <yasagure@umitanuki.net> wrote:
> >
> >>Hi Peter,
> >>
> >>What you want is to get the array of specific nodes, isn't it??
> >>If it's true, see code below:
> >>
> >>xmltest.rb :
> >>require 'rexml/document'
> >>
> >>xmlin = <<EOD
> >><a>
> >>  <b>one</b>
> >>  <c>two</c>
> >>  <d>
> >>    <e>three</e>
> >>    <f>four</f>
> >>  </d>
> >></a>
> >>EOD
> >>
> >>xml = REXML::Document.new(xmlin)
> >>puts xml.elements.to_a('/a/d')
> >>
> >>--
> >>then, you can iterate with the nodes of 'd', including knowing
> >>the number of 'd' nodes with '.size' method, right??
> >>
> >>Regards,
> >>
> >>
> >>umitanuki
> >>
> >>
> >>Peter Fitzgibbons wrote:
> >>
> >>>HI Jeff,
> >>>
> >>>xmltest.rb :
> >>>require 'rexml/document'
> >>>
> >>>xmlin = <<EOD
> >>><a>
> >>> <b>one</b>
> >>> <c>two</c>
> >>> <d>
> >>>   <e>three</e>
> >>>   <f>four</f>
> >>> </d>
> >>></a>
> >>>EOD
> >>>
> >>>xml = REXML::Document.new(xmlin)
> >>>puts xml.elements['/a/d'].size
> >>>puts xml.elements['/a/d']
> >>>
> >>>
> >>>output :
> >>>5
> >>><d>
> >>>   <e>three</e>
> >>>   <f>four</f>
> >>> </d>
> >>>
> >>>xml.elements['/a/d'] returns the entire xml tree under/including /a/d
> >>>
> >>>I want this to return 1 (the number of "d" elements in the list)
> >>>
> >>>
> >>>
> >>
> >>
> >>
> >
> >
> > --
> > "http://ruby-lang.org -- do you ruby?"
> >
> > Jeff Wood
> >
> >
> >
>
>
>
>

My code was :

puts xml.elements['/a/d'].size

in previous post.