Provided by: libtest-simple-perl_1.302167-1_all bug


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


       Collection of tools used by Test2 and friends.


       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.

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

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

           True if this system is capable of using threads.

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

           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.

       $string = ipc_separator()
           Get the IPC separator. Currently this is always the string '~'.

       $string = gen_uid()
           Generate a unique id (NOT A UUID). This will typically be the process id, the thread
           id, the time, and an incrementing integer all joined with the "ipc_separator()".

           These ID's are unique enough for most purposes. For identical ids to be generated you
           must have 2 processes with the same PID generate IDs at the same time with the same
           current state of the incrementing integer. This is a perfectly reasonable thing to
           expect to happen across multiple machines, but is quite unlikely to happen on one

           This can fail to be unique if a process generates an id, calls exec, and does it again
           after the exec and it all happens in less than a second. It can also happen if the
           systems process id's cycle in less than a second allowing 2 different programs that
           use this generator to run with the same PID in less than a second. Both these cases
           are sufficiently unlikely. If you need universally unique ids, or ids that are unique
           in these conditions, look at Data::UUID.

       ($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:



           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 does not support threads. CAN_THREAD will return false if Devel::Cover is
           loaded before the check is first run.


       The source code repository for Test2 can be found at


       Chad Granum <>


       Chad Granum <>
       Kent Fredric <>


       Copyright 2019 Chad Granum <>.

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