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use Test::More tests => 6;

BEGIN { use_ok('Data::Dump::Streamer', qw(:undump weaken)); }
use strict;
use warnings;
use Data::Dumper;

SKIP: {
    my ($_item, $_ref);
    $_ref= \$_item;
    skip("No Weak Refs", 5)
        unless eval { weaken($_ref) };

# imports same()
    require "./t/test_helper.pl";

# use this one for simple, non evalable tests. (GLOB)
#   same ( $got,$expected,$name,$obj )
#
# use this one for eval checks and dumper checks but NOT for GLOB's
# same ( $name,$obj,$expected,@args )

    my $dump;
    my $o= Data::Dump::Streamer->new();

    isa_ok($o, 'Data::Dump::Streamer');

    {
        local *icky;
        *icky= \ "icky";
        our $icky;
        my $id= 0;
        my $btree;
        $btree= sub {
            my ($d, $m, $p)= @_;
            return $p
                if $d > $m;
            return [
                $btree->($d + 1, $m, $p . '0'),
                $btree->($d + 1, $m, $p . '1') ];
        };

        my $t= $btree->(0, 1, '');
        my ($x, $y, $qr);
        $x= \$y;
        $y= \$x;
        $qr= bless qr/this is a test/m, 'foo_bar';
        weaken($y);
        my $array= [];
        my $hash= bless {
            A      => \$array,
            'B-B'  => ['$array'],
            'CCCD' => [ 'foo', 'bar' ],
            'E'    => \\1,
            'F'    => \\undef,
            'Q'    => sub { \@_ }
                ->($icky),
            },
            'ThisIsATest';
        $hash->{G}= \$hash;
        my $boo= 'boo';
        @$array= (\$hash, \$hash, \$hash, \$qr, \$qr, \'foo', \$boo);
        my $cap= capture($x, $y, $qr, $x, $y, $qr);

        same('Madness cap( $qr,$qr )', $o, <<'EXPECT', capture($qr, $qr));
$ARRAY1 = [
            bless( qr/this is a test/m, 'foo_bar' ),
            'A: $ARRAY1->[0]'
          ];
alias_av(@$ARRAY1, 1, $ARRAY1->[0]);
EXPECT

        #same( $dump = $o->Data( $cap,$array,$boo,$hash,$qr )->Out, <<'EXPECT', "Total Madness", $o );
        same("Total Madness", $o, <<'EXPECT', ($cap, $array, $boo, $hash, $qr));
$ARRAY1 = [
            'R: $ARRAY1->[1]',
            'R: $ARRAY1->[0]',
            'A: $foo_bar1',
            'A: $ARRAY1->[0]',
            'A: $ARRAY1->[1]',
            'A: $foo_bar1'
          ];
$ARRAY1->[0] = \$ARRAY1->[1];
$ARRAY1->[1] = \$ARRAY1->[0];
weaken($ARRAY1->[1]);
alias_av(@$ARRAY1, 3, $ARRAY1->[0]);
alias_av(@$ARRAY1, 4, $ARRAY1->[1]);
$ARRAY2 = [
            \$ThisIsATest1,
            'V: $ARRAY2->[0]',
            'V: $ARRAY2->[0]',
            \$foo_bar1,
            'V: $ARRAY2->[3]',
            \'foo',
            \$VAR1
          ];
$ARRAY2->[1] = $ARRAY2->[0];
$ARRAY2->[2] = $ARRAY2->[0];
$ARRAY2->[4] = $ARRAY2->[3];
$VAR1 = 'boo';
$ThisIsATest1 = bless( {
                  A     => \$ARRAY2,
                  "B-B" => [ '$array' ],
                  CCCD  => [
                             'foo',
                             'bar'
                           ],
                  E     => \\1,
                  F     => \\undef,
                  G     => $ARRAY2->[0],
                  Q     => [ 'icky' ]
                }, 'ThisIsATest' );
make_ro($ThisIsATest1->{Q}[0]);
$foo_bar1 = bless( qr/this is a test/m, 'foo_bar' );
alias_av(@$ARRAY1, 2, $foo_bar1);
alias_av(@$ARRAY1, 5, $foo_bar1);
EXPECT

    }
    {
        my ($x, $y);
        $x= \$y;
        $y= \$x;

        my $a= [ 1, 2 ];
        $a->[0]= \$a->[1];
        $a->[1]= \$a->[0];
        weaken($a->[1]);
        weaken($x);

        #$cap->[-1]=5;
        my $s;
        $s= \$s;
        my $bar= 'bar';
        my $foo= 'foo';
        my $halias= { foo => 1, bar => 2 };
        alias_hv(%$halias, 'foo',  $foo);
        alias_hv(%$halias, 'bar',  $bar);
        alias_hv(%$halias, 'foo2', $foo);

        my ($t, $u, $v, $w)= (1, 2, 3, 4);
        my $cap= sub { \@_ }
            ->($x, $y);
        my $q1= qr/foo/;
        my $q2= bless qr/bar/, 'bar';
        my $q3= \bless qr/baz/, 'baz';

        #same( $dump = $o->Data( $a,$q1,$q2,$q3,[$x,$y],[$s,$x,$y],$t,$u,$v,$t,[1,2,3],{1..4},$cap,$cap,$t,$u,$v,$halias)->Out, <<'EXPECT', "More Madness", $o );
        same(
            "More Madness",
            $o,
            <<'EXPECT', ($a, $q1, $q2, $q3, [ $x, $y ], [ $s, $x, $y ], $t, $u, $v, $t, [ 1, 2, 3 ], { 1 .. 4 }, $cap, $cap, $t, $u, $v, $halias));
$ARRAY1 = [
            'R: $ARRAY1->[1]',
            'R: $ARRAY1->[0]'
          ];
$ARRAY1->[0] = \$ARRAY1->[1];
$ARRAY1->[1] = \$ARRAY1->[0];
weaken($ARRAY1->[1]);
$Regexp1 = qr/foo/;
$bar1 = bless( qr/bar/, 'bar' );
$REF1 = \bless( qr/baz/, 'baz' );
$ARRAY2 = [
            'R: $ARRAY5->[1]',
            'R: $ARRAY5->[0]'
          ];
$ARRAY3 = [
            \do { my $v = 'V: $ARRAY3->[0]' },
            'V: $ARRAY2->[0]',
            'V: $ARRAY2->[1]'
          ];
${$ARRAY3->[0]} = $ARRAY3->[0];
$VAR1 = 1;
$VAR2 = 2;
$VAR3 = 3;
alias_ref(\$VAR4,\$VAR1);
$ARRAY4 = [
            1,
            2,
            3
          ];
$HASH1 = {
           1 => 2,
           3 => 4
         };
$ARRAY5 = [
            'V: $ARRAY2->[0]',
            'V: $ARRAY2->[1]'
          ];
$ARRAY2->[0] = \$ARRAY5->[1];
$ARRAY2->[1] = \$ARRAY5->[0];
$ARRAY3->[1] = $ARRAY2->[0];
$ARRAY3->[2] = $ARRAY2->[1];
$ARRAY5->[0] = $ARRAY2->[0];
weaken($ARRAY5->[0]);
$ARRAY5->[1] = $ARRAY2->[1];
alias_ref(\$ARRAY6,\$ARRAY5);
alias_ref(\$VAR5,\$VAR1);
alias_ref(\$VAR6,\$VAR2);
alias_ref(\$VAR7,\$VAR3);
$HASH2 = {
           bar  => 'bar',
           foo  => 'foo',
           foo2 => 'A: $HASH2->{foo}'
         };
alias_hv(%$HASH2, 'foo2', $HASH2->{foo});
EXPECT

    }
    {
        skip("Causes error at global destruction on 5.8.0", 1)
            if $] == 5.008;

        #local $Data::Dump::Streamer::DEBUG = 1;
        my $x;
        $x= sub { \@_ }
            ->($x, $x);
        my $y= $x;    #keep it alive
        weaken($x);
        push @$x, $x;
        same("Tye Alias Array", $o, <<'EXPECT', ($x));
$ARRAY1 = [
            'A: $ARRAY1',
            'A: $ARRAY1',
            'V: $ARRAY1'
          ];
alias_av(@$ARRAY1, 0, $ARRAY1);
alias_av(@$ARRAY1, 1, $ARRAY1);
$ARRAY1->[2] = $ARRAY1;
weaken($ARRAY1);
EXPECT
    }
    undef $o;

}

__END__
# with eval testing
{
    same( "", $o, <<'EXPECT', (  ) );

}
# without eval testing
{
    same( $dump = $o->Data()->Out, <<'EXPECT', "", $o );
EXPECT
}