function testSerializeXmlShouldHandleNull()
{
$o = new SerializableImpl(array('leer' => null));
$root = XmlSerializer::createDocument('r');
XmlSerializer::_toXml($o, $root);
$str = $root->ownerDocument->saveXML();
$this->assertEqual('<?xml version="1.0" encoding="UTF-8"?>
<r>
<leer/>
</r>
', $str);
}
function test_toXmlRecursiveSorted()
{
$a = new Address($this->fixture('address.json'));
$a->foo = new MpiParams(array('x' => '1', 'a' => '2', 'k' => '3'));
XmlSerializer::$sort = true;
$root = XmlSerializer::createDocument('r');
XmlSerializer::_toXml($a, $root);
$str = $root->ownerDocument->saveXML();
$this->assertEqual($str, '<?xml version="1.0" encoding="UTF-8"?>
<r>
<address1>Kurfürstendamm 123</address1>
<city>Berlin</city>
<country>DE</country>
<first_name>Hans</first_name>
<foo>
<a>2</a>
<k>3</k>
<x>1</x>
</foo>
<last_name>Johanson</last_name>
<zip_code>10624</zip_code>
</r>
');
}
