public function testCompareResourceRecords()
{
$soa = new ResourceRecord();
$soa->setClass('IN');
$soa->setName('@');
$soa->setRdata(Factory::Soa('example.com.', 'postmaster.example.com.', 2015050801, 3600, 14400, 604800, 3600));
$ns1 = new ResourceRecord();
$ns1->setClass(Classes::INTERNET);
$ns1->setName('@');
$ns1->setTtl(14400);
$ns1->setRdata(Factory::Ns('ns1.example.net.au.'));
$ns2 = new ResourceRecord();
$ns2->setClass('IN');
$ns2->setName('@');
$ns2->setTtl(14400);
$ns2->setRdata(Factory::Ns('ns2.example.net.au.'));
$a = new ResourceRecord();
$a->setName('subdomain.au');
$a->setRdata(Factory::A('192.168.1.2'));
$a->setComment('This is a local ip.');
$cname = new ResourceRecord();
$cname->setName('alias');
$cname->setRdata(Factory::Cname('subdomain.au.example.com.'));
$cname->setClass(Classes::INTERNET);
$aaaa = new ResourceRecord('ipv6domain', Factory::Aaaa('::1'), 3600);
$mx1 = new ResourceRecord();
$mx1->setName('@');
$mx1->setRdata(Factory::Mx(10, 'mailgw01.example.net.'));
$mx2 = new ResourceRecord();
$mx2->setName('@');
$mx2->setRdata(Factory::Mx(20, 'mailgw02.example.net.'));
$txt = new ResourceRecord();
$txt->setName('example.net.');
$txt->setRdata(Factory::txt('v=spf1 ip4:192.0.2.0/24 ip4:198.51.100.123 a -all'));
$dummy = new ResourceRecord();
$dummy->setName('example.com.');
$dummy->setRdata(new DummyRdata());
$this->assertTrue(AlignedBuilder::compareResourceRecords($soa, $ns1) < 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($aaaa, $cname) < 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($mx1, $mx2) < 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($mx1, $mx2) < 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($mx1, $dummy) < 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($mx1, $a) > 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($ns2, $ns1) > 0);
$this->assertTrue(AlignedBuilder::compareResourceRecords($dummy, $txt) > 0);
}
