Test2:...::Grab(3perl) Perl Programmers Reference Guide Test2:...::Grab(3perl)
NAME
Test2::Tools::Grab - Temporarily intercept all events without adding a
scope level.
DESCRIPTION
This package provides a function that returns an object that grabs all
events. Once the object is destroyed events will once again be sent to
the main hub.
SYNOPSIS
use Test2::Tools::Grab;
my $grab = grab();
# Generate some events, they are intercepted.
ok(1, "pass");
ok(0, "fail");
my $events_a = $grab->flush;
# Generate some more events, they are intercepted.
ok(1, "pass");
ok(0, "fail");
my $events_b = $grab->finish;
EXPORTS
$grab = grab()
This lets you intercept all events for a section of code without
adding anything to your call stack. This is useful for things that
are sensitive to changes in the stack depth.
my $grab = grab();
ok(1, 'foo');
ok(0, 'bar');
my $events = $grab->finish;
is(@$events, 2, "grabbed 2 events.");
If the $grab object is destroyed without calling finish(), it will
automatically clean up after itself and restore the parent hub.
{
my $grab = grab();
# Things are grabbed
}
# Things are back to normal
By default the hub used has "no_ending" set to true. This will
prevent the hub from enforcing that you issued a plan and ran at
least 1 test. You can turn enforcement back one like this:
$grab->hub->set_no_ending(0);
With "no_ending" turned off, "finish" will run the post-test checks
to enforce the plan and that tests were run. In many cases this will
result in additional events in your events array.
SEE ALSO
Test2::Util::Grabber - The object constructed and returned by this tool.
SOURCE
The source code repository for Test2 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:...::Grab(3perl)
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