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

use strict;

use Test::More tests => 52;

use Net::DNS;

my $name = 'TXT.example';

my $type = 'TXT';

my $code = 16;

my @attr = qw( txtdata );

my @data = qw( arbitrary_text );

my $wire = '0e6172626974726172795f74657874';

{

	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->$_()" );

	}

	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]" );

}

{

	foreach my $testcase (

		q|contiguous|,	q|three unquoted strings|,

		q|"in quotes"|, q|"two separate" "quoted strings"|,

		q|"" empty|,	q|" " space|,

		q|!|,		q|\"|,

		q|#|,		q|\$|,

		q|%|,		q|&|,

		q|'|,		q|\(|,

		q|\)|,		q|*|,

		q|+|,		q|,|,

		q|-|,		q|.|,

		q|/|,		q|:|,

		q|\;|,		q|<|,

		q|=|,		q|>|,

		q|?|,		q|\@|,

		q|[|,		q|\\\\|,

		q|]|,		q|^|,

		q|_|,		q|`|,

		q|{|,		q(|),

		q|}|,		q|~|,

		q|0|,		q|1|,

		join( q|\227\128\128|,

			q|\229\143\164\230\177\160\227\130\132|,

			q|\232\155\153\233\163\155\232\190\188\227\130\128|,

			q|\230\176\180\227\129\174\233\159\179| )

		) {

		my $string = "$name.	TXT	$testcase";

		my $expect = new Net::DNS::RR($string)->string; # test for consistent parsing

		my $result = new Net::DNS::RR($expect)->string;

		is( $result, $expect, $string );

	}

}

{

	my $rr = new Net::DNS::RR(". $type");

	foreach (@attr) {

		ok( !$rr->$_(), "'$_' attribute of empty RR undefined" );

	}

}

exit;