public function testSale()
{
$xml = new \XMLWriter();
$xml->openMemory();
$xml->setIndent(true);
$xml->setIndentString("\t");
$node = new Sale(new \DateTime(), new \DateTime(), CurrencyAmount::factory(1, 'USD'));
$node->setStartDate(new \DateTime())->setEndDate(new \DateTime())->setSalePrice(CurrencyAmount::factory(1, 'USD'));
$node->writeXml($xml, 'Sale');
$dom = new \DOMDocument();
$dom->loadXML($xml->outputMemory(true));
$this->assertTrue($dom->schemaValidate(__DIR__ . '/../../../../XSD/DataType.xsd'));
}
