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|
use strict;
use warnings;
use Carp;
require "dbm_filter_util.pl";
use Test::More;
BEGIN { use_ok('DBM_Filter') };
my $db_file;
BEGIN {
use Config;
foreach (qw/SDBM_File ODBM_File NDBM_File GDBM_File DB_File/) {
if ($Config{extensions} =~ /\b$_\b/) {
$db_file = $_;
last;
}
}
use_ok($db_file);
};
BEGIN { use_ok('Fcntl') };
unlink <nullOp_dbmx*>;
END { unlink <nullOp_dbmx*>; }
my %h1 = () ;
my $db1 = tie(%h1, $db_file,'nullOp_dbmx', O_RDWR|O_CREAT, 0640) ;
ok $db1, "tied to $db_file";
# store before adding the filter
StoreData(\%h1,
{
"abc" => "def",
});
VerifyData(\%h1,
{
"abc" => "def",
});
eval { $db1->Filter_Push('null') };
is $@, '', "push a 'null' filter" ;
{
no warnings 'uninitialized';
StoreData(\%h1,
{
undef() => undef(),
"alpha" => "beta",
});
VerifyData(\%h1,
{
undef() => undef(),
"abc" => "", # not "def", because the filter is in place
"alpha" => "beta",
});
}
while (my ($k, $v) = each %h1) {
no warnings 'uninitialized';
#diag "After Match [$k][$v]";
}
undef $db1;
{
use warnings FATAL => 'untie';
eval { untie %h1 };
is $@, '', "untie without inner references" ;
}
# read the dbm file without the filter, check for null termination
my %h2 = () ;
my $db2 = tie(%h2, $db_file,'nullOp_dbmx', O_RDWR|O_CREAT, 0640) ;
ok $db2, "tied to $db_file";
VerifyData(\%h2,
{
"abc" => "def",
"alpha\x00" => "beta\x00",
"\x00" => "\x00",
});
undef $db2;
{
use warnings FATAL => 'untie';
eval { untie %h2 };
is $@, '', "untie without inner references" ;
}
done_testing();
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