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#!/usr/bin/perl -w
use strict;
use warnings qw( FATAL all NONFATAL void );
use lib 'lib';
use Test::More tests => 12;
use Data::Alias;
sub refs { [map "".\$_, @_] }
our $x = alias [];
is @$x, 0;
is_deeply alias([$_]), [$_] for 1 .. 3;
$x = alias [42];
eval { $x->[0]++ };
like $@, qr/^Modification .* attempted /;
$x = alias [$x];
is_deeply refs(@$x), refs($x);
$x = alias [$x, our $y];
is_deeply refs(@$x), refs($x, $y);
$x = alias [$x, $y, our $z];
is_deeply refs(@$x), refs($x, $y, $z);
$x = alias [undef, $y, undef];
is @$x, 3;
is \$x->[1], \$y;
ok "$]" < 5.019004 ? !exists($x->[0]) : \$x->[0] eq \undef;
ok "$]" < 5.019004 ? !exists($x->[2]) : \$x->[2] eq \undef;
# vim: ft=perl
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