# -*-perl-*-

use ObjStore;
package MyHV;
use base 'ObjStore::HV';

package MyAV;
use base 'ObjStore::AV';

package main;
use Test;
BEGIN { plan test => 9 }

use ObjStore ':ALL';
use lib './t';
use test;

&open_db;
    
my $junk = {
    'nums' => [ 1..13 ],
    'strs' => { qw(a b  c d  e f  g h), i => [ 'a', 1 ] },
};

# see if transient works..
eval {
    for my $t (qw(ObjStore::AV ObjStore::HV)) {
	my $x = $t->new('transient');
	my $nt = $t;
	$nt =~ s/^ObjStore::/My/;
	bless $x, $nt;
    }
};
ok $@||'', '', 'transient failed';

begin 'update', sub {
    # see if transient works..
    eval {
	for my $t (qw(ObjStore::AV ObjStore::HV)) {
	    my $x = $t->new('transient');
	    my $nt = $t;
	    $nt =~ s/^ObjStore::/My/;
	    bless $x, $nt;
	}
    };
    ok $@||'', '', 'transient failed';

    my $john = $db->root('John');
    die "no db" if !$john;
    
    $db->get_default_segment_size;
    $db->get_default_segment->set_comment("default segment");
    
    my $empty = $db->create_segment('1segment');
    ok($empty->database_of->get_id, $db->get_id);
    for (qw(as_used read write)) { $empty->set_lock_whole_segment($_); }
    for (qw(segment page stream)) {
	$empty->set_fetch_policy($_, 8192);
    }
    $empty->lock_into_cache;
    $empty->unlock_from_cache;
    $empty->return_memory(1);
    $empty->set_size($empty->size);
    $empty->unused_space;
    ok(! $empty->is_deleted);
    $empty->destroy;
    ok($empty->is_deleted);
    
    if (exists $john->{junk_seg}) {
	delete $john->{junk_in_seg};
    }

    $seg = $db->create_segment('junk');
    ok($seg->get_comment, 'junk');

    $john->{junk_seg} = $seg->get_number();

    my $h = new ObjStore::HV($seg, 10);
    $john->{junk_in_seg} = $h;

    # fill up the segment with junk
    for (keys %$junk) { $h->{$_} = $junk->{$_}; }
    $h->{sptr} = $h->{strs}->new_ref($h, 'hard');
	
    # segment is determined by OSSVPV, not from OSSV
    my $nseg = $h->segment_of;
    ok($nseg->get_number(), $seg->get_number());
    
    # double-check the obvious
    $nseg = $h->{nums}->segment_of;
    ok($nseg->get_number(), $seg->get_number());
};
die if $@;