package Test2::Compare::Undef;
use strict;
use warnings;
use Carp qw/confess/;
use base 'Test2::Compare::Base';
our $VERSION = '0.000122';
use Test2::Util::HashBase;
# Overloads '!' for us.
use Test2::Compare::Negatable;
sub name { '<UNDEF>' }
sub operator {
my $self = shift;
return 'IS NOT' if $self->{+NEGATE};
return 'IS';
}
sub verify {
my $self = shift;
my %params = @_;
my ($got, $exists) = @params{qw/got exists/};
return 0 unless $exists;
return !defined($got) unless $self->{+NEGATE};
return defined($got);
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Test2::Compare::Undef - Check that something is undefined
=head1 DESCRIPTION
Make sure something is undefined in a comparison. You can also check that
something is defined.
=head1 SOURCE
The source code repository for Test2-Suite can be found at
F<https://github.com/Test-More/Test2-Suite/>.
=head1 MAINTAINERS
=over 4
=item Chad Granum E<lt>exodist@cpan.orgE<gt>
=back
=head1 AUTHORS
=over 4
=item Chad Granum E<lt>exodist@cpan.orgE<gt>
=back
=head1 COPYRIGHT
Copyright 2018 Chad Granum E<lt>exodist@cpan.orgE<gt>.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
See F<http://dev.perl.org/licenses/>
=cut
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