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package Test::Stream::Tester::Grab;
use strict;
use warnings;
sub new {
my $class = shift;
my $self = bless {
events => [],
streams => [ Test::Stream->intercept_start ],
}, $class;
$self->{streams}->[0]->listen(
sub {
shift; # Stream
push @{$self->{events}} => @_;
}
);
return $self;
}
sub flush {
my $self = shift;
my $out = delete $self->{events};
$self->{events} = [];
return $out;
}
sub events {
my $self = shift;
# Copy
return [@{$self->{events}}];
}
sub finish {
my ($self) = @_; # Do not shift;
$_[0] = undef;
$self->{finished} = 1;
my ($remove) = $self->{streams}->[0];
Test::Stream->intercept_stop($remove);
return $self->flush;
}
sub DESTROY {
my $self = shift;
return if $self->{finished};
my ($remove) = $self->{streams}->[0];
Test::Stream->intercept_stop($remove);
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Test::Stream::Tester::Grab - Object used to temporarily steal all events.
=head1 DESCRIPTION
Once created this object will intercept and stash all events sent to the shared
L<Test::Stream> object. Once the object is destroyed events will once again be
sent to the shared stream.
=head1 SYNOPSYS
use Test::More;
use Test::Stream::Tester::Grab;
my $grab = Test::Stream::Tester::Grab->new();
# 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");
# Same as flush, except it destroys the grab object.
my $events_b = $grab->finish;
After calling C<finish()> the grab object is destroyed and C<$grab> is set to
undef. C<$events_a> is an arrayref with the first 2 events. C<$events_b> is an
arrayref with the second 2 events.
=head1 METHODS
=over 4
=item $grab = $class->new()
Create a new grab object, immediately starts intercepting events.
=item $ar = $grab->flush()
Get an arrayref of all the events so far, clearing the grab objects internal
list.
=item $ar = $grab->events()
Get an arrayref of all events so far, does not clear the internal list.
=item $ar = $grab->finish()
Get an arrayref of all the events, then destroy the grab object.
=back
=head1 SOURCE
The source code repository for Test::More can be found at
F<http://github.com/Test-More/test-more/>.
=head1 MAINTAINER
=over 4
=item Chad Granum E<lt>exodist@cpan.orgE<gt>
=back
=head1 AUTHORS
The following people have all contributed to the Test-More dist (sorted using
VIM's sort function).
=over 4
=item Chad Granum E<lt>exodist@cpan.orgE<gt>
=item Fergal Daly E<lt>fergal@esatclear.ie>E<gt>
=item Mark Fowler E<lt>mark@twoshortplanks.comE<gt>
=item Michael G Schwern E<lt>schwern@pobox.comE<gt>
=item 唐鳳
=back
=head1 COPYRIGHT
There has been a lot of code migration between modules,
here are all the original copyrights together:
=over 4
=item Test::Stream
=item Test::Stream::Tester
Copyright 2014 Chad Granum E<lt>exodist7@gmail.comE<gt>.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
See F<http://www.perl.com/perl/misc/Artistic.html>
=item Test::Simple
=item Test::More
=item Test::Builder
Originally authored by Michael G Schwern E<lt>schwern@pobox.comE<gt> with much
inspiration from Joshua Pritikin's Test module and lots of help from Barrie
Slaymaker, Tony Bowden, blackstar.co.uk, chromatic, Fergal Daly and the perl-qa
gang.
Idea by Tony Bowden and Paul Johnson, code by Michael G Schwern
E<lt>schwern@pobox.comE<gt>, wardrobe by Calvin Klein.
Copyright 2001-2008 by Michael G Schwern E<lt>schwern@pobox.comE<gt>.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
See F<http://www.perl.com/perl/misc/Artistic.html>
=item Test::use::ok
To the extent possible under law, 唐鳳 has waived all copyright and related
or neighboring rights to L<Test-use-ok>.
This work is published from Taiwan.
L<http://creativecommons.org/publicdomain/zero/1.0>
=item Test::Tester
This module is copyright 2005 Fergal Daly <fergal@esatclear.ie>, some parts
are based on other people's work.
Under the same license as Perl itself
See http://www.perl.com/perl/misc/Artistic.html
=item Test::Builder::Tester
Copyright Mark Fowler E<lt>mark@twoshortplanks.comE<gt> 2002, 2004.
This program is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.
=back
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