# $Id: 05-NS.t 1362 2015-06-23 08:47:14Z willem $ -*-perl-*-
use strict;
use Test::More tests => 13;
use Net::DNS;
my $name = 'NS.example';
my $type = 'NS';
my $code = 2;
my @attr = qw( nsdname );
my @data = qw( ns.example.com );
my @also = qw( );
my $wire = '026e73076578616d706c6503636f6d00';
{
my $typecode = unpack 'xn', new Net::DNS::RR(". $type")->encode;
is( $typecode, $code, "$type RR type code = $code" );
my $hash = {};
@{$hash}{@attr} = @data;
my $rr = new Net::DNS::RR(
name => $name,
type => $type,
%$hash
);
my $string = $rr->string;
my $rr2 = new Net::DNS::RR($string);
is( $rr2->string, $string, 'new/string transparent' );
is( $rr2->encode, $rr->encode, 'new($string) and new(%hash) equivalent' );
foreach (@attr) {
is( $rr->$_, $hash->{$_}, "expected result from rr->$_()" );
}
foreach (@also) {
is( $rr2->$_, $rr->$_, "additional attribute rr->$_()" );
}
my $null = new Net::DNS::RR("$name NULL")->encode;
my $empty = new Net::DNS::RR("$name $type")->encode;
my $rxbin = decode Net::DNS::RR( \$empty )->encode;
my $txtext = new Net::DNS::RR("$name $type")->string;
my $rxtext = new Net::DNS::RR($txtext)->encode;
my $encoded = $rr->encode;
my $decoded = decode Net::DNS::RR( \$encoded );
my $hex1 = unpack 'H*', $encoded;
my $hex2 = unpack 'H*', $decoded->encode;
my $hex3 = unpack 'H*', substr( $encoded, length $null );
is( $hex2, $hex1, 'encode/decode transparent' );
is( $hex3, $wire, 'encoded RDATA matches example' );
is( length($empty), length($null), 'encoded RDATA can be empty' );
is( length($rxbin), length($null), 'decoded RDATA can be empty' );
is( length($rxtext), length($null), 'string RDATA can be empty' );
}
{
my $lc = new Net::DNS::RR( lc ". $type @data" );
my $rr = new Net::DNS::RR( uc ". $type @data" );
my $hash = {};
my $predecessor = $rr->encode( 0, $hash );
my $compressed = $rr->encode( length $predecessor, $hash );
ok( length $compressed < length $predecessor, 'encoded RDATA compressible' );
isnt( $rr->encode, $lc->encode, 'encoded RDATA names not downcased' );
is( $rr->canonical, $lc->encode, 'canonical RDATA names downcased' );
}
{
my $rr = new Net::DNS::RR(". $type");
foreach (@attr) {
ok( !$rr->$_(), "'$_' attribute of empty RR undefined" );
}
}
exit;