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#!/usr/bin/perl
# $Id: 05-NSEC.t 1815 2020-10-14 21:55:18Z willem $ -*-perl-*-
#
use strict;
use warnings;
use Test::More tests => 15;
use Net::DNS;
my $name = 'alpha.example.com';
my $type = 'NSEC';
my $code = 47;
my @attr = qw( nxtdname typelist);
my @data = qw( host.example.com A NS NSEC RRSIG SOA );
my @hash = ( qw( host.example.com ), q(A NS NSEC RRSIG SOA) );
my @also = qw( );
my $wire = '04686f7374076578616d706c6503636f6d000006620000000003';
{
my $typecode = unpack 'xn', Net::DNS::RR->new(". $type")->encode;
is( $typecode, $code, "$type RR type code = $code" );
my $hash = {};
@{$hash}{@attr} = @hash;
my $rr = Net::DNS::RR->new(
name => $name,
type => $type,
%$hash
);
my $string = $rr->string;
my $rr2 = Net::DNS::RR->new($string);
is( $rr2->string, $string, 'new/string transparent' );
is( $rr2->encode, $rr->encode, 'new($string) and new(%hash) equivalent' );
foreach (@attr) {
my $a = join ' ', sort split /\s+/, $rr->$_; # typelist order unspecified
my $b = join ' ', sort split /\s+/, $hash->{$_};
is( $a, $b, "expected result from rr->$_()" );
}
foreach (@also) {
is( $rr2->$_, $rr->$_, "additional attribute rr->$_()" );
}
my $null = Net::DNS::RR->new("$name NULL")->encode;
my $empty = Net::DNS::RR->new("$name $type")->encode;
my $rxbin = Net::DNS::RR->decode( \$empty )->encode;
my $txtext = Net::DNS::RR->new("$name $type")->string;
my $rxtext = Net::DNS::RR->new($txtext)->encode;
my $encoded = $rr->encode;
my $decoded = Net::DNS::RR->decode( \$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 = Net::DNS::RR->new( lc ". $type @data" );
my $rr = Net::DNS::RR->new( 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 not compressible' );
isnt( $rr->encode, $lc->encode, 'encoded RDATA names not downcased' );
isnt( $rr->canonical, $lc->encode, 'canonical RDATA names not downcased' );
}
{
my $rr = Net::DNS::RR->new(". $type");
foreach (@attr) {
ok( !$rr->$_(), "'$_' attribute of empty RR undefined" );
}
}
{
my $rr = Net::DNS::RR->new("$name $type @data");
local $SIG{__WARN__} = sub { }; # suppress deprecation warning
eval { $rr->covered('example.') }; # historical
eval { $rr->typebm('') }; # historical
eval { $rr->typebm() }; # historical
$rr->print;
}
exit;
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