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Test2:...rnings(3perl)  Perl Programmers Reference Guide Test2:...rnings(3perl)

NAME
       Test2::Tools::Warnings - Tools to verify warnings.

DESCRIPTION
       This is a collection of tools that can be used to test code that issues
       warnings.

SYNOPSIS
           use Test2::Tools::Warnings qw/warns warning warnings no_warnings/;

           ok(warns { warn 'a' }, "the code warns");
           ok(!warns { 1 }, "The code does not warn");
           is(warns { warn 'a'; warn 'b' }, 2, "got 2 warnings");

           ok(no_warnings { ... }, "code did not warn");

           like(
               warning { warn 'xxx' },
               qr/xxx/,
               "Got expected warning"
           );

           is(
               warnings { warn "a\n"; warn "b\n" },
               [
                   "a\n",
                   "b\n",
               ],
               "Got 2 specific warnings"
           );

EXPORTS
       All subs are exported by default.

       $count = warns { ... }
           Returns  the  count  of  warnings  produced  by the block. This will
           always return 0, or a positive integer.

       $warning = warning { ... }
           Returns the first warning generated  by  the  block.  If  the  block
           produces more than one warning, they will all be shown as notes, and
           an actual warning will tell you about it.

       $warnings_ref = warnings { ... }
           Returns  an  arrayref  with  all the warnings produced by the block.
           This will  always  return  an  array  reference.  If  there  are  no
           warnings, this will return an empty array reference.

       $bool = no_warnings { ... }
           Return true if the block has no warnings. Returns false if there are
           warnings.

SOURCE
       The   source   code   repository   for   Test2-Suite  can  be  found  at
       https://github.com/Test-More/Test2-Suite/.

MAINTAINERS
       Chad Granum <exodist@cpan.org>

AUTHORS
       Chad Granum <exodist@cpan.org>

COPYRIGHT
       Copyright 2018 Chad Granum <exodist@cpan.org>.

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

       See http://dev.perl.org/licenses/

perl v5.40.1                       2026-08-30            Test2:...rnings(3perl)

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