NAME
Test::FailWarnings - Add test failures if warnings are caught
VERSION
version 0.008
SYNOPSIS
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.
DESCRIPTION
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.
USAGE
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.
Allowing warnings from dependencies
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)/
Allowing warnings from specific modules
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/ ];
SEE ALSO
Test::NoWarnings -- catches warnings and reports in an
END
block. Not (yet) friendly withdone_testing
.Test::Warnings -- a replacement for Test::NoWarnings that works with done_testing
Test::Warn -- test for warnings without triggering failures from this modules
SUPPORT
Bugs / Feature Requests
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.
Source Code
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
AUTHOR
David Golden <dagolden@cpan.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2013 by David Golden.
This is free software, licensed under:
The Apache License, Version 2.0, January 2004