public function test_StringWalker_parser_with_pubmed_xml_and_container_extraction()
{
$file = __DIR__ . "/../../xml/pubmed-example.xml";
$stream = new File($file, 16384);
$parser = new StringWalker(array("extractContainer" => true));
$streamer = new XmlStringStreamer($parser, $stream);
$expectedPMIDs = array("24531174", "24529294", "24449586");
$foundPMIDs = array();
while ($node = $streamer->getNode()) {
$xmlNode = simplexml_load_string($node);
$foundPMIDs[] = (string) $xmlNode->MedlineCitation->PMID;
}
$this->assertEquals($expectedPMIDs, $foundPMIDs, "The PMID nodes should be as expected");
$containerXml = simplexml_load_string($parser->getExtractedContainer());
$this->assertEquals("PubmedArticleSet", $containerXml->getName(), "Root node should be as expected");
$this->assertEquals("bar", $containerXml->attributes()->foo, "Attributes should be extracted correctly");
$this->assertEquals("qux", $containerXml->attributes()->baz, "Attributes should be extracted correctly");
}
public function test_multiple_roots()
{
$node1 = <<<eot
<child-a>
<foo baz="attribute" />
<bar/>
<index>1</index>
</child-a>
eot;
$node2 = <<<eot
<child-a>
<foo baz="attribute" />
<bar/>
<index>2</index>
</child-a>
eot;
$node3 = <<<eot
<child-b>
<foo baz="attribute" />
<bar/>
<index>3</index>
</child-b>
eot;
$node4 = <<<eot
<child-b>
<foo baz="attribute" />
<bar/>
<index>3</index>
</child-b>
eot;
$xml = <<<eot
<?xml version="1.0"?>
<root-a>
{$node1}
{$node2}
</root-a>
<root-b>
{$node3}
{$node4}
</root-b>
eot;
$stream = $this->getStreamMock($xml, 50);
$parser = new StringWalker();
$this->assertEquals(trim($node1), trim($parser->getNodeFrom($stream)), "Node 1 should be obtained on the first getNodeFrom from root-a");
$this->assertEquals(trim($node2), trim($parser->getNodeFrom($stream)), "Node 2 should be obtained on the second getNodeFrom from root-a");
$this->assertEquals(trim($node3), trim($parser->getNodeFrom($stream)), "Node 3 should be obtained on the third getNodeFrom from root-b");
$this->assertEquals(trim($node4), trim($parser->getNodeFrom($stream)), "Node 4 should be obtained on the third getNodeFrom from root-b");
$this->assertFalse(false, "When no nodes are left, false should be returned");
}
