Test::FailWarnings - Add test failures if warnings are caught

       David Golden <dagolden@cpan.org>

       This software is Copyright (c) 2013 by David Golden.

       This is free software, licensed under:

         The Apache License, Version 2.0, January 2004

perl v5.36.0                                       2022-10-22                            Test::FailWarnings(3pm)

       This module hooks $SIG{__WARN__} and converts warnings to Test::More "fail()" calls.  It is designed to
       be used with "done_testing", when you don't need to know the test count in advance.

       Just as with Test::NoWarnings, this does not catch warnings if other things localize $SIG{__WARN__}, as
       this is designed to catch unhandled warnings.

       Test::FailWarnings - Add test failures if warnings are caught

       •   Test::NoWarnings  --  catches  warnings  and  reports  in  an  "END"  block.  Not (yet) friendly with
           "done_testing".

       •   Test::Warnings -- a replacement for Test::NoWarnings that works with done_testing

       •   Test::Warn -- test for warnings without triggering failures from this modules

Bugs/FeatureRequests
       Please    report    any    bugs    or    feature    requests    through    the    issue    tracker     at
       <https://github.com/dagolden/Test-FailWarnings/issues>.   You  will  be  notified  automatically  of  any
       progress on your issue.

   SourceCode
       This is open source software.  The code repository is available for public review and contribution  under
       the terms of the license.

       <https://github.com/dagolden/Test-FailWarnings>

         git clone https://github.com/dagolden/Test-FailWarnings.git

       Test file:

           use strict;
           use warnings;
           use Test::More;
           use Test::FailWarnings;

           ok( 1, "first test" );
           ok( 1 + "lkadjaks", "add non-numeric" );

           done_testing;

       Output:

           ok 1 - first test
           not ok 2 - Test::FailWarnings should catch no warnings
           #   Failed test 'Test::FailWarnings should catch no warnings'
           #   at t/bin/main-warn.pl line 7.
           # Warning was 'Argument "lkadjaks" isn't numeric in addition (+) at t/bin/main-warn.pl line 7.'
           ok 3 - add non-numeric
           1..3
           # Looks like you failed 1 test of 3.

Overriding$SIG{__WARN__}
       On "import", $SIG{__WARN__} is replaced with "Test::FailWarnings::handler".

           use Test::FailWarnings;  # global

       If you don't want global replacement, require the module instead and localize in whatever scope you want.

           require Test::FailWarnings;

           {
               local $SIG{__WARN__} = \&Test::FailWarnings::handler;
               # ... warnings will issue fail() here
           }

       When the handler reports on the source of the warning, it will look past any calling packages starting
       with "Carp" or "warnings" to try to detect the real origin of the warning.

   Allowingwarningsfromdependencies
       If you want to ignore failures from outside your own code, you can set $Test::FailWarnings::ALLOW_DEPS to
       a true value.  You can do that on the "use" line with "-allow_deps".

           use Test::FailWarnings -allow_deps => 1;

       When true, warnings will only be thrown if they appear to originate from a filename matching
       "qr/^(?:t|xt|lib|blib)/"

   Allowingwarningsfromspecificmodules
       If you want to white-list specific modules only, you can add their package names to
       @Test::NoWarnings::ALLOW_FROM.  You can do that on the "use" line with "-allow_from".

           use Test::FailWarnings -allow_from => [ qw/Annoying::Module/ ];

       version 0.008