/**
* @covers ByJG\Util\XmlUtil::selectNodes
* @covers ByJG\Util\XmlUtil::selectSingleNode
*/
public function testSelectNodes()
{
$dom = XmlUtil::createXmlDocumentFromStr('<root><a><item arg="1"/><item arg="2"><b1/><b2/></item><item arg="3"/></a></root>');
$nodeList = XmlUtil::selectNodes($dom->documentElement, 'a/item');
$this->assertEquals(3, $nodeList->length);
$this->assertEquals('item', $nodeList->item(0)->nodeName);
$this->assertEquals('1', $nodeList->item(0)->attributes->getNamedItem('arg')->nodeValue);
$this->assertEquals('item', $nodeList->item(1)->nodeName);
$this->assertEquals('2', $nodeList->item(1)->attributes->getNamedItem('arg')->nodeValue);
$this->assertEquals('item', $nodeList->item(2)->nodeName);
$this->assertEquals('3', $nodeList->item(2)->attributes->getNamedItem('arg')->nodeValue);
$node = XmlUtil::selectSingleNode($nodeList->item(1), 'b2');
$this->assertEquals('b2', $node->nodeName);
}