public function testAlreadyExistentNamespacePrefix()
{
// Document has already a namespace prefixed as 'dt' (the default Xpath prefix, if not specified in construtor)
// 'Namespaced' value should not be retrieved; its prefix
// will be the same as the already defined in the parents
// 'Conflicting' should not be retrieved as well
// cause 'dt' will corresponds to two namespaces
$dom_document = new Document('1.0', 'utf-8');
$dom_document->loadXML('<any_container
xmlns="http://berlinonline.net/trellis/1.0/schema"
xmlns:on="urn:other:namespace"
xmlns:dt="urn:conflicting:prefix:namespace">
<dt:option name="types">
<option>Namespaced</option>
<on:option>OtherNamespace</on:option>
<dt:option>Conflicting</dt:option>
<option xmlns="">NonNamespaced</option>
</dt:option>
</any_container>');
$xpath = new Xpath($dom_document);
$xpath->registerNamespace('dt', 'urn:conflicting:prefix:namespace');
$options_nodelist = $xpath->query('/any_container/dt:option/option', $dom_document->documentElement);
$this->assertEquals(0, $options_nodelist->length);
}
