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//usr/share/doc/perl-Test-Warn-0.24/README

Test/Warn version 0.24
======================

INSTALLATION

To install this module type the following:
   cpan Test::Warn

perl Makefile.PL
   make
   make test
   make install

DEPENDENCIES

This module requires these other modules and libraries:

Test::Builder
Sub::Uplevel
List::Util
Tree::DAG_Node
File::Spec

SYNOPSIS
      use Test::Warn;

warning_is    {foo(-dri => "/")} "Unknown Parameter 'dri'", "dri != dir gives warning";
      warnings_are  {bar(1,1)} ["Width very small", "Height very small"];
  
      warning_is    {add(2,2)} undef, "No warning to calc 2+2"; # or
      warnings_are  {add(2,2)} [],    "No warning to calc 2+2"; # what reads better :-)
  
      warning_like  {foo(-dri => "/"} qr/unknown param/i, "an unknown parameter test";
      warnings_like {bar(1,1)} [qr/width.*small/i, qr/height.*small/i];
  
      warning_is    {foo()} {carped => 'didn't found the right parameters'};
      warnings_like {foo()} [qr/undefined/,qr/undefined/,{carped => qr/no result/i}];
  
      warning_like {foo(undef)}                 'uninitialized';
      warning_like {bar(file => '/etc/passwd')} 'io';

warning_like {eval q/"$x"; $x;/} 
                   [qw/void uninitialized/], 
                   "some warnings at compile time";

DESCRIPTION
    This module provides a few convenience methods for testing warning based
    code.

If you are not already familiar with the Test::More manpage now would be
    the time to go take a look.

FUNCTIONS - OVERVIEW
    warning_is    BLOCK STRING,   TEST_NAME
    warnings_are  BLOCK ARRAYREF, TEST_NAME
    warning_like  BLOCK REGEXP,   TEST_NAME
    warning_like  BLOCK STRING,   TEST_NAME
    warnings_like BLOCK ARRAYREF, TEST_NAME

SEE ALSO
    Have a look to the similar Test::Exception module.

THANKS
    Many thanks to Adrian Howard, chromatic and Michael G. Schwern, who all had
    given me a lot of ideas.

AUTHOR
    Janek Schleicher, <bigj@kamelfreund.de>

This library is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.