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# $Id: 05-HIP.t 1362 2015-06-23 08:47:14Z willem $	-*-perl-*-
#

use strict;
use Test::More;
use Net::DNS;

my @prerequisite = qw(
		MIME::Base64
		);

foreach my $package (@prerequisite) {
	next if eval "require $package";
	plan skip_all => "$package not installed";
	exit;
}

plan tests => 24;


my $name = 'HIP.example';
my $type = 'HIP';
my $code = 55;
my @attr = qw( pkalgorithm hit key servers );
my @data = qw( 2 200100107b1a74df365639cc39f1d578
		AwEAAbdxyhNuSutc5EMzxTs9LBPCIkOFH8cIvM4p9+LrV4e19WzK00+CI6zBCQTdtWsuxKbWIy87UOoJTwkUs7lBu+Upr1gsNrut79ryra+bSRGQb1slImA8YVJyuIDsj7kwzG7jnERNqnWxZ48AWkskmdHaVDP4BcelrTI3rMXdXF5D
		rvs1.example.com
		rvs2.example.com );
my @also = qw( keybin );

my $wire = join '', qw( 10020084200100107b1a74df365639cc39f1d57803010001b771ca136e4aeb5c
		e44333c53b3d2c13c22243851fc708bcce29f7e2eb5787b5f56ccad34f8223ac
		c10904ddb56b2ec4a6d6232f3b50ea094f0914b3b941bbe529af582c36bbadef
		daf2adaf9b4911906f5b2522603c615272b880ec8fb930cc6ee39c444daa75b1
		678f005a4b2499d1da5433f805c7a5ad3237acc5dd5c5e430472767331076578
		616d706c6503636f6d000472767332076578616d706c6503636f6d00
		);

{
	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) {
		next if /server/;
		is( $rr->$_, $hash->{$_}, "expected result from rr->$_()" );
	}

	for (qw(servers)) {
		my ($rvs) = $rr->$_;				# test limitation: single element list
		is( $rvs, $hash->{$_}, "expected result from rr->$_()" );
	}

	foreach (@also) {
		is( $rr2->$_, $rr->$_, "additional attribute rr->$_()" );
	}
}


{
	my $rr	    = new Net::DNS::RR("$name $type @data");
	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 @wire = unpack 'C*', $encoded;
	$wire[length($empty) - 1]--;
	my $wireformat = pack 'C*', @wire;
	eval { decode Net::DNS::RR( \$wireformat ); };
	my $exception = $1 if $@ =~ /^(.+)\n/;
	ok( $exception ||= '', "corrupt wire-format\t[$exception]" );
}


{
	my $rr = new Net::DNS::RR(". $type @data");
	eval { $rr->hit('123456789XBCDEF'); };
	my $exception = $1 if $@ =~ /^(.+)\n/;
	ok( $exception ||= '', "corrupt hexadecimal\t[$exception]" );
}


{
	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 not compressible' );
	isnt( $rr->encode,    $lc->encode, 'encoded RDATA names not downcased' );
	isnt( $rr->canonical, $lc->encode, 'canonical RDATA names not downcased' );
}


{
	my $rr = new Net::DNS::RR(". $type");
	foreach (@attr) {
		ok( !$rr->$_(), "'$_' attribute of empty RR undefined" );
	}
}


{
	my $rr = new Net::DNS::RR("$name $type @data");
	is( $rr->pubkey,		   $rr->key, "historical 'pubkey'" );
	is( ref( $rr->rendezvousservers ), 'ARRAY',  "historical 'rendezvousservers'" );
	$rr->print;
}


exit;

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