Test2::Util

Section: Perl Programmers Reference Guide (3perl)
Updated: 2019-04-20
Page Index

NAME

Test2::Util - Tools used by Test2 and friends.

DESCRIPTION

Collection of tools used by Test2 and friends.

EXPORTS

All exports are optional. You must specify subs to import.

($success, $error) = try { ... }

Eval the codeblock, return success or failure, and the error message. This code protects $@ and $!, they will be restored by the end of the run. This code also temporarily blocks $SIG{DIE} handlers.

protect { ... }

Similar to try, except that it does not catch exceptions. The idea here is to protect $@ and $! from changes. $@ and $! will be restored to whatever they were before the run so long as it is successful. If the run fails $! will still be restored, but $@ will contain the exception being thrown.

CAN_FORK

True if this system is capable of true or pseudo-fork.

CAN_REALLY_FORK

True if the system can really fork. This will be false for systems where fork is emulated.

CAN_THREAD

True if this system is capable of using threads.

USE_THREADS

Returns true if threads are enabled, false if they are not.

get_tid

This will return the id of the current thread when threads are enabled, otherwise it returns 0.

my $file = pkg_to_file($package)

Convert a package name to a filename.

($ok, $err) = do_rename($old_name, $new_name)

Rename a file, this wraps "rename()" in a way that makes it more reliable cross-platform when trying to rename files you recently altered.

($ok, $err) = do_unlink($filename)

Unlink a file, this wraps "unlink()" in a way that makes it more reliable cross-platform when trying to unlink files you recently altered.

($ok, $err) = try_sig_mask { ... }

Complete an action with several signals masked, they will be unmasked at the end allowing any signals that were intercepted to get handled.

This is primarily used when you need to make several actions atomic (against some signals anyway).

Signals that are intercepted:

SIGINT
SIGALRM
SIGHUP
SIGTERM
SIGUSR1
SIGUSR2

NOTES && CAVEATS

5.10.0: Perl 5.10.0 has a bug when compiled with newer gcc versions. This bug causes a segfault whenever a new thread is launched. Test2 will attempt to detect this, and note that the system is not capable of forking when it is detected.
Devel::Cover: Devel::Cover does not support threads. CAN_THREAD will return false if Devel::Cover is loaded before the check is first run.

SOURCE

The source code repository for Test2 can be found at http://github.com/Test-More/test-more/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>
Kent Fredric <kentnl@cpan.org>

COPYRIGHT

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/