Re: [Perlunit-devel] What's up with "use base 'Error'"?

[Piers C. <pdc...@bo...>]

Matthias Ferber <mf...@hi...> writes:

> Hi people,
>
> I've downloaded the most recent version of PerlUnit to get the
> renamed classes, and I'm hitting a problem involving the use of the
> Error class, which Test::Unit::Exception is derived from. (This is
> new since v1.14.)

Yup, that's Error from CPAN. You'll also need Class::Inner from CPAN
(which forgets to mention that it needs Test::More)

> Is this supposed to be Test::Unit::Error, or the Error.pm module from
> CPAN?  It looks to me like it's probably the CPAN module, and if that's
> right, I don't think it's such a good thing.  We don't have that module
> installed here, and while we're loose enough that I can get it installed
> without difficulty, I would think that having PerlUnit dependent on an
> optional module rather cuts into its usefulness.  Am I blowing against the
> wind?  

I'm afraid you are. I'm strongly against reinventing wheels, and
PerlUnit's hand rolled exception classes did just that. Error.pm gives
us a good implementation of exception objects and some really useful
syntax with which to use them.

> (And, of course, is there an alternative?)

Nope.

Same goes for Class::Inner, which was originally written (by me) with
this framework in mind as a replacement for the old, broken system. It
got released to CPAN as a seperate entity because it has the potential
to be useful outside PerlUnit (though I really should do another
release with better documentation...) 

> By the way, I looked for discussion about this in the mailing list
> archives but I couldn't find anything.  Sorry if I missed something that
> was there.  If there's a way to search the archive I didn't see it.  Grr.

There is a searchable archive somewhere. Can't remember where now of
course. (I'm so helpful aren't I). It probably got discussed in one of
the 'Refactoring' threads.

-- 
Piers

   "It is a truth universally acknowledged that a language in
    possession of a rich syntax must be in need of a rewrite."
         -- Jane Austen?