Re: Fatal "wide character" warnings in tests

Hook %SIG?

David
 On Jan 29, 2012 4:56 PM, "Ovid" <[email protected]> wrote:

> How do I make "Wide character in print" warnings fatal in tests?
>
> This test passes;
>
>     use Test::More;
>
>
>     use strict;
>     use warnings;
>     use warnings FATAL => 'utf8';
>     use utf8::all;
>     my $string = '日本国';
>     my $length = length($string);
>     is $length, 3, "$string should have $length characters";
>     diag $string;
>     done_testing;
>
> That's passing because the warnings pragma is lexically scoped and the
> actual warnings are emitted in Test::Builder guts (utf8::all will let the
> test pass because that package's code is now marked as utf8, but it doesn't
> fix Test::Builder's filehandles). I can make the warnings go away with this:
>
>     my $output = Test::Builder->new->todo_output;
>     binmode $output, ':encoding(UTF-8)';
>     $output = Test::Builder->new->failure_output;
>     binmode $output, ':encoding(UTF-8)';
>
> But I'd really like a clean way of just saying "kill my code if I ever see
> 'Wide character in print'" regardless of which package the error is emitted
> from.
>
> Cheers,
> Ovid
> --
> Live and work overseas - http://overseas-exile.blogspot.com/
> Buy the book           - http://www.oreilly.com/catalog/perlhks/
> Tech blog              - http://blogs.perl.org/users/ovid/
> Twitter                - http://twitter.com/OvidPerl/
>