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CrawlerTest.php
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CrawlerTest.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\DomCrawler\Tests;
use PHPUnit\Framework\TestCase;
use Symfony\Component\DomCrawler\Crawler;
class CrawlerTest extends TestCase
{
public function testConstructor()
{
$crawler = new Crawler();
$this->assertCount(0, $crawler, '__construct() returns an empty crawler');
$doc = new \DOMDocument();
$node = $doc->createElement('test');
$crawler = new Crawler($node);
$this->assertCount(1, $crawler, '__construct() takes a node as a first argument');
}
public function testGetUri()
{
$uri = 'http://symfony.com';
$crawler = new Crawler(null, $uri);
$this->assertEquals($uri, $crawler->getUri());
}
public function testGetBaseHref()
{
$baseHref = 'http://symfony.com';
$crawler = new Crawler(null, null, $baseHref);
$this->assertEquals($baseHref, $crawler->getBaseHref());
}
public function testAdd()
{
$crawler = new Crawler();
$crawler->add($this->createDomDocument());
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->add() adds nodes from a \DOMDocument');
$crawler = new Crawler();
$crawler->add($this->createNodeList());
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->add() adds nodes from a \DOMNodeList');
$list = array();
foreach ($this->createNodeList() as $node) {
$list[] = $node;
}
$crawler = new Crawler();
$crawler->add($list);
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->add() adds nodes from an array of nodes');
$crawler = new Crawler();
$crawler->add($this->createNodeList()->item(0));
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->add() adds nodes from a \DOMNode');
$crawler = new Crawler();
$crawler->add('<html><body>Foo</body></html>');
$this->assertEquals('Foo', $crawler->filterXPath('//body')->text(), '->add() adds nodes from a string');
}
/**
* @expectedException \InvalidArgumentException
*/
public function testAddInvalidType()
{
$crawler = new Crawler();
$crawler->add(1);
}
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage Attaching DOM nodes from multiple documents in the same crawler is forbidden.
*/
public function testAddMultipleDocumentNode()
{
$crawler = $this->createTestCrawler();
$crawler->addHtmlContent('<html><div class="foo"></html>', 'UTF-8');
}
public function testAddHtmlContent()
{
$crawler = new Crawler();
$crawler->addHtmlContent('<html><div class="foo"></html>', 'UTF-8');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addHtmlContent() adds nodes from an HTML string');
}
public function testAddHtmlContentWithBaseTag()
{
$crawler = new Crawler();
$crawler->addHtmlContent('<html><head><base href="http://symfony.com"></head><a href="/contact"></a></html>', 'UTF-8');
$this->assertEquals('http://symfony.com', $crawler->filterXPath('//base')->attr('href'), '->addHtmlContent() adds nodes from an HTML string');
$this->assertEquals('http://symfony.com/contact', $crawler->filterXPath('//a')->link()->getUri(), '->addHtmlContent() adds nodes from an HTML string');
}
/**
* @requires extension mbstring
*/
public function testAddHtmlContentCharset()
{
$crawler = new Crawler();
$crawler->addHtmlContent('<html><div class="foo">Tiếng Việt</html>', 'UTF-8');
$this->assertEquals('Tiếng Việt', $crawler->filterXPath('//div')->text());
}
public function testAddHtmlContentInvalidBaseTag()
{
$crawler = new Crawler(null, 'http://symfony.com');
$crawler->addHtmlContent('<html><head><base target="_top"></head><a href="/contact"></a></html>', 'UTF-8');
$this->assertEquals('http://symfony.com/contact', current($crawler->filterXPath('//a')->links())->getUri(), '->addHtmlContent() correctly handles a non-existent base tag href attribute');
}
public function testAddHtmlContentUnsupportedCharset()
{
$crawler = new Crawler();
$crawler->addHtmlContent(file_get_contents(__DIR__.'/Fixtures/windows-1250.html'), 'Windows-1250');
$this->assertEquals('Žťčýů', $crawler->filterXPath('//p')->text());
}
/**
* @requires extension mbstring
*/
public function testAddHtmlContentCharsetGbk()
{
$crawler = new Crawler();
//gbk encode of <html><p>中文</p></html>
$crawler->addHtmlContent(base64_decode('PGh0bWw+PHA+1tDOxDwvcD48L2h0bWw+'), 'gbk');
$this->assertEquals('中文', $crawler->filterXPath('//p')->text());
}
public function testAddHtmlContentWithErrors()
{
$internalErrors = libxml_use_internal_errors(true);
$crawler = new Crawler();
$crawler->addHtmlContent(<<<'EOF'
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<nav><a href="#"><a href="#"></nav>
</body>
</html>
EOF
, 'UTF-8');
$errors = libxml_get_errors();
$this->assertCount(1, $errors);
$this->assertEquals("Tag nav invalid\n", $errors[0]->message);
libxml_clear_errors();
libxml_use_internal_errors($internalErrors);
}
public function testAddXmlContent()
{
$crawler = new Crawler();
$crawler->addXmlContent('<html><div class="foo"></div></html>', 'UTF-8');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addXmlContent() adds nodes from an XML string');
}
public function testAddXmlContentCharset()
{
$crawler = new Crawler();
$crawler->addXmlContent('<html><div class="foo">Tiếng Việt</div></html>', 'UTF-8');
$this->assertEquals('Tiếng Việt', $crawler->filterXPath('//div')->text());
}
public function testAddXmlContentWithErrors()
{
$internalErrors = libxml_use_internal_errors(true);
$crawler = new Crawler();
$crawler->addXmlContent(<<<'EOF'
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<nav><a href="#"><a href="#"></nav>
</body>
</html>
EOF
, 'UTF-8');
$this->assertGreaterThan(1, libxml_get_errors());
libxml_clear_errors();
libxml_use_internal_errors($internalErrors);
}
public function testAddContent()
{
$crawler = new Crawler();
$crawler->addContent('<html><div class="foo"></html>', 'text/html; charset=UTF-8');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addContent() adds nodes from an HTML string');
$crawler = new Crawler();
$crawler->addContent('<html><div class="foo"></html>', 'text/html; charset=UTF-8; dir=RTL');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addContent() adds nodes from an HTML string with extended content type');
$crawler = new Crawler();
$crawler->addContent('<html><div class="foo"></html>');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addContent() uses text/html as the default type');
$crawler = new Crawler();
$crawler->addContent('<html><div class="foo"></div></html>', 'text/xml; charset=UTF-8');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addContent() adds nodes from an XML string');
$crawler = new Crawler();
$crawler->addContent('<html><div class="foo"></div></html>', 'text/xml');
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addContent() adds nodes from an XML string');
$crawler = new Crawler();
$crawler->addContent('foo bar', 'text/plain');
$this->assertCount(0, $crawler, '->addContent() does nothing if the type is not (x|ht)ml');
$crawler = new Crawler();
$crawler->addContent('<html><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><span>中文</span></html>');
$this->assertEquals('中文', $crawler->filterXPath('//span')->text(), '->addContent() guess wrong charset');
}
/**
* @requires extension iconv
*/
public function testAddContentNonUtf8()
{
$crawler = new Crawler();
$crawler->addContent(iconv('UTF-8', 'SJIS', '<html><head><meta charset="Shift_JIS"></head><body>日本語</body></html>'));
$this->assertEquals('日本語', $crawler->filterXPath('//body')->text(), '->addContent() can recognize "Shift_JIS" in html5 meta charset tag');
}
public function testAddDocument()
{
$crawler = new Crawler();
$crawler->addDocument($this->createDomDocument());
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addDocument() adds nodes from a \DOMDocument');
}
public function testAddNodeList()
{
$crawler = new Crawler();
$crawler->addNodeList($this->createNodeList());
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addNodeList() adds nodes from a \DOMNodeList');
}
public function testAddNodes()
{
$list = array();
foreach ($this->createNodeList() as $node) {
$list[] = $node;
}
$crawler = new Crawler();
$crawler->addNodes($list);
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addNodes() adds nodes from an array of nodes');
}
public function testAddNode()
{
$crawler = new Crawler();
$crawler->addNode($this->createNodeList()->item(0));
$this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addNode() adds nodes from a \DOMNode');
}
public function testClear()
{
$doc = new \DOMDocument();
$node = $doc->createElement('test');
$crawler = new Crawler($node);
$crawler->clear();
$this->assertCount(0, $crawler, '->clear() removes all the nodes from the crawler');
}
public function testEq()
{
$crawler = $this->createTestCrawler()->filterXPath('//li');
$this->assertNotSame($crawler, $crawler->eq(0), '->eq() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->eq() returns a new instance of a crawler');
$this->assertEquals('Two', $crawler->eq(1)->text(), '->eq() returns the nth node of the list');
$this->assertCount(0, $crawler->eq(100), '->eq() returns an empty crawler if the nth node does not exist');
}
public function testEach()
{
$data = $this->createTestCrawler()->filterXPath('//ul[1]/li')->each(function ($node, $i) {
return $i.'-'.$node->text();
});
$this->assertEquals(array('0-One', '1-Two', '2-Three'), $data, '->each() executes an anonymous function on each node of the list');
}
public function testIteration()
{
$crawler = $this->createTestCrawler()->filterXPath('//li');
$this->assertInstanceOf('Traversable', $crawler);
$this->assertContainsOnlyInstancesOf('DOMElement', iterator_to_array($crawler), 'Iterating a Crawler gives DOMElement instances');
}
public function testSlice()
{
$crawler = $this->createTestCrawler()->filterXPath('//ul[1]/li');
$this->assertNotSame($crawler->slice(), $crawler, '->slice() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler->slice(), '->slice() returns a new instance of a crawler');
$this->assertCount(3, $crawler->slice(), '->slice() does not slice the nodes in the list if any param is entered');
$this->assertCount(1, $crawler->slice(1, 1), '->slice() slices the nodes in the list');
}
public function testReduce()
{
$crawler = $this->createTestCrawler()->filterXPath('//ul[1]/li');
$nodes = $crawler->reduce(function ($node, $i) {
return 1 !== $i;
});
$this->assertNotSame($nodes, $crawler, '->reduce() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $nodes, '->reduce() returns a new instance of a crawler');
$this->assertCount(2, $nodes, '->reduce() filters the nodes in the list');
}
public function testAttr()
{
$this->assertEquals('first', $this->createTestCrawler()->filterXPath('//li')->attr('class'), '->attr() returns the attribute of the first element of the node list');
try {
$this->createTestCrawler()->filterXPath('//ol')->attr('class');
$this->fail('->attr() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->attr() throws an \InvalidArgumentException if the node list is empty');
}
}
public function testMissingAttrValueIsNull()
{
$crawler = new Crawler();
$crawler->addContent('<html><div non-empty-attr="sample value" empty-attr=""></div></html>', 'text/html; charset=UTF-8');
$div = $crawler->filterXPath('//div');
$this->assertEquals('sample value', $div->attr('non-empty-attr'), '->attr() reads non-empty attributes correctly');
$this->assertEquals('', $div->attr('empty-attr'), '->attr() reads empty attributes correctly');
$this->assertNull($div->attr('missing-attr'), '->attr() reads missing attributes correctly');
}
public function testNodeName()
{
$this->assertEquals('li', $this->createTestCrawler()->filterXPath('//li')->nodeName(), '->nodeName() returns the node name of the first element of the node list');
try {
$this->createTestCrawler()->filterXPath('//ol')->nodeName();
$this->fail('->nodeName() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->nodeName() throws an \InvalidArgumentException if the node list is empty');
}
}
public function testText()
{
$this->assertEquals('One', $this->createTestCrawler()->filterXPath('//li')->text(), '->text() returns the node value of the first element of the node list');
try {
$this->createTestCrawler()->filterXPath('//ol')->text();
$this->fail('->text() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->text() throws an \InvalidArgumentException if the node list is empty');
}
$this->assertSame('my value', $this->createTestCrawler(null)->filterXPath('//ol')->text('my value'));
}
public function testHtml()
{
$this->assertEquals('<img alt="Bar">', $this->createTestCrawler()->filterXPath('//a[5]')->html());
$this->assertEquals('<input type="text" value="TextValue" name="TextName"><input type="submit" value="FooValue" name="FooName" id="FooId"><input type="button" value="BarValue" name="BarName" id="BarId"><button value="ButtonValue" name="ButtonName" id="ButtonId"></button>', trim(preg_replace('~>\s+<~', '><', $this->createTestCrawler()->filterXPath('//form[@id="FooFormId"]')->html())));
try {
$this->createTestCrawler()->filterXPath('//ol')->html();
$this->fail('->html() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->html() throws an \InvalidArgumentException if the node list is empty');
}
$this->assertSame('my value', $this->createTestCrawler(null)->filterXPath('//ol')->html('my value'));
}
public function testExtract()
{
$crawler = $this->createTestCrawler()->filterXPath('//ul[1]/li');
$this->assertEquals(array('One', 'Two', 'Three'), $crawler->extract('_text'), '->extract() returns an array of extracted data from the node list');
$this->assertEquals(array(array('One', 'first'), array('Two', ''), array('Three', '')), $crawler->extract(array('_text', 'class')), '->extract() returns an array of extracted data from the node list');
$this->assertEquals(array(array(), array(), array()), $crawler->extract(array()), '->extract() returns empty arrays if the attribute list is empty');
$this->assertEquals(array(), $this->createTestCrawler()->filterXPath('//ol')->extract('_text'), '->extract() returns an empty array if the node list is empty');
$this->assertEquals(array(array('One', 'li'), array('Two', 'li'), array('Three', 'li')), $crawler->extract(array('_text', '_name')), '->extract() returns an array of extracted data from the node list');
}
public function testFilterXpathComplexQueries()
{
$crawler = $this->createTestCrawler()->filterXPath('//body');
$this->assertCount(0, $crawler->filterXPath('/input'));
$this->assertCount(0, $crawler->filterXPath('/body'));
$this->assertCount(1, $crawler->filterXPath('./body'));
$this->assertCount(1, $crawler->filterXPath('.//body'));
$this->assertCount(5, $crawler->filterXPath('.//input'));
$this->assertCount(4, $crawler->filterXPath('//form')->filterXPath('//button | //input'));
$this->assertCount(1, $crawler->filterXPath('body'));
$this->assertCount(6, $crawler->filterXPath('//button | //input'));
$this->assertCount(1, $crawler->filterXPath('//body'));
$this->assertCount(1, $crawler->filterXPath('descendant-or-self::body'));
$this->assertCount(1, $crawler->filterXPath('//div[@id="parent"]')->filterXPath('./div'), 'A child selection finds only the current div');
$this->assertCount(3, $crawler->filterXPath('//div[@id="parent"]')->filterXPath('descendant::div'), 'A descendant selector matches the current div and its child');
$this->assertCount(3, $crawler->filterXPath('//div[@id="parent"]')->filterXPath('//div'), 'A descendant selector matches the current div and its child');
$this->assertCount(5, $crawler->filterXPath('(//a | //div)//img'));
$this->assertCount(7, $crawler->filterXPath('((//a | //div)//img | //ul)'));
$this->assertCount(7, $crawler->filterXPath('( ( //a | //div )//img | //ul )'));
$this->assertCount(1, $crawler->filterXPath("//a[./@href][((./@id = 'Klausi|Claudiu' or normalize-space(string(.)) = 'Klausi|Claudiu' or ./@title = 'Klausi|Claudiu' or ./@rel = 'Klausi|Claudiu') or .//img[./@alt = 'Klausi|Claudiu'])]"));
}
public function testFilterXPath()
{
$crawler = $this->createTestCrawler();
$this->assertNotSame($crawler, $crawler->filterXPath('//li'), '->filterXPath() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->filterXPath() returns a new instance of a crawler');
$crawler = $this->createTestCrawler()->filterXPath('//ul');
$this->assertCount(6, $crawler->filterXPath('//li'), '->filterXPath() filters the node list with the XPath expression');
$crawler = $this->createTestCrawler();
$this->assertCount(3, $crawler->filterXPath('//body')->filterXPath('//button')->parents(), '->filterXpath() preserves parents when chained');
}
public function testFilterRemovesDuplicates()
{
$crawler = $this->createTestCrawler()->filter('html, body')->filter('li');
$this->assertCount(6, $crawler, 'The crawler removes duplicates when filtering.');
}
public function testFilterXPathWithDefaultNamespace()
{
$crawler = $this->createTestXmlCrawler()->filterXPath('//default:entry/default:id');
$this->assertCount(1, $crawler, '->filterXPath() automatically registers a namespace');
$this->assertSame('tag:youtube.com,2008:video:kgZRZmEc9j4', $crawler->text());
}
public function testFilterXPathWithCustomDefaultNamespace()
{
$crawler = $this->createTestXmlCrawler();
$crawler->setDefaultNamespacePrefix('x');
$crawler = $crawler->filterXPath('//x:entry/x:id');
$this->assertCount(1, $crawler, '->filterXPath() lets to override the default namespace prefix');
$this->assertSame('tag:youtube.com,2008:video:kgZRZmEc9j4', $crawler->text());
}
public function testFilterXPathWithNamespace()
{
$crawler = $this->createTestXmlCrawler()->filterXPath('//yt:accessControl');
$this->assertCount(2, $crawler, '->filterXPath() automatically registers a namespace');
}
public function testFilterXPathWithMultipleNamespaces()
{
$crawler = $this->createTestXmlCrawler()->filterXPath('//media:group/yt:aspectRatio');
$this->assertCount(1, $crawler, '->filterXPath() automatically registers multiple namespaces');
$this->assertSame('widescreen', $crawler->text());
}
public function testFilterXPathWithManuallyRegisteredNamespace()
{
$crawler = $this->createTestXmlCrawler();
$crawler->registerNamespace('m', 'http://search.yahoo.com/mrss/');
$crawler = $crawler->filterXPath('//m:group/yt:aspectRatio');
$this->assertCount(1, $crawler, '->filterXPath() uses manually registered namespace');
$this->assertSame('widescreen', $crawler->text());
}
public function testFilterXPathWithAnUrl()
{
$crawler = $this->createTestXmlCrawler();
$crawler = $crawler->filterXPath('//media:category[@scheme="http://gdata.youtube.com/schemas/2007/categories.cat"]');
$this->assertCount(1, $crawler);
$this->assertSame('Music', $crawler->text());
}
public function testFilterXPathWithFakeRoot()
{
$crawler = $this->createTestCrawler();
$this->assertCount(0, $crawler->filterXPath('.'), '->filterXPath() returns an empty result if the XPath references the fake root node');
$this->assertCount(0, $crawler->filterXPath('self::*'), '->filterXPath() returns an empty result if the XPath references the fake root node');
$this->assertCount(0, $crawler->filterXPath('self::_root'), '->filterXPath() returns an empty result if the XPath references the fake root node');
}
public function testFilterXPathWithAncestorAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//form');
$this->assertCount(0, $crawler->filterXPath('ancestor::*'), 'The fake root node has no ancestor nodes');
}
public function testFilterXPathWithAncestorOrSelfAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//form');
$this->assertCount(0, $crawler->filterXPath('ancestor-or-self::*'), 'The fake root node has no ancestor nodes');
}
public function testFilterXPathWithAttributeAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//form');
$this->assertCount(0, $crawler->filterXPath('attribute::*'), 'The fake root node has no attribute nodes');
}
public function testFilterXPathWithAttributeAxisAfterElementAxis()
{
$this->assertCount(3, $this->createTestCrawler()->filterXPath('//form/button/attribute::*'), '->filterXPath() handles attribute axes properly when they are preceded by an element filtering axis');
}
public function testFilterXPathWithChildAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//div[@id="parent"]');
$this->assertCount(1, $crawler->filterXPath('child::div'), 'A child selection finds only the current div');
}
public function testFilterXPathWithFollowingAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//a');
$this->assertCount(0, $crawler->filterXPath('following::div'), 'The fake root node has no following nodes');
}
public function testFilterXPathWithFollowingSiblingAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//a');
$this->assertCount(0, $crawler->filterXPath('following-sibling::div'), 'The fake root node has no following nodes');
}
public function testFilterXPathWithNamespaceAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//button');
$this->assertCount(0, $crawler->filterXPath('namespace::*'), 'The fake root node has no namespace nodes');
}
public function testFilterXPathWithNamespaceAxisAfterElementAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//div[@id="parent"]/namespace::*');
$this->assertCount(0, $crawler->filterXPath('namespace::*'), 'Namespace axes cannot be requested');
}
public function testFilterXPathWithParentAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//button');
$this->assertCount(0, $crawler->filterXPath('parent::*'), 'The fake root node has no parent nodes');
}
public function testFilterXPathWithPrecedingAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//form');
$this->assertCount(0, $crawler->filterXPath('preceding::*'), 'The fake root node has no preceding nodes');
}
public function testFilterXPathWithPrecedingSiblingAxis()
{
$crawler = $this->createTestCrawler()->filterXPath('//form');
$this->assertCount(0, $crawler->filterXPath('preceding-sibling::*'), 'The fake root node has no preceding nodes');
}
public function testFilterXPathWithSelfAxes()
{
$crawler = $this->createTestCrawler()->filterXPath('//a');
$this->assertCount(0, $crawler->filterXPath('self::a'), 'The fake root node has no "real" element name');
$this->assertCount(0, $crawler->filterXPath('self::a/img'), 'The fake root node has no "real" element name');
$this->assertCount(10, $crawler->filterXPath('self::*/a'));
}
public function testFilter()
{
$crawler = $this->createTestCrawler();
$this->assertNotSame($crawler, $crawler->filter('li'), '->filter() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->filter() returns a new instance of a crawler');
$crawler = $this->createTestCrawler()->filter('ul');
$this->assertCount(6, $crawler->filter('li'), '->filter() filters the node list with the CSS selector');
}
public function testFilterWithDefaultNamespace()
{
$crawler = $this->createTestXmlCrawler()->filter('default|entry default|id');
$this->assertCount(1, $crawler, '->filter() automatically registers namespaces');
$this->assertSame('tag:youtube.com,2008:video:kgZRZmEc9j4', $crawler->text());
}
public function testFilterWithNamespace()
{
$crawler = $this->createTestXmlCrawler()->filter('yt|accessControl');
$this->assertCount(2, $crawler, '->filter() automatically registers namespaces');
}
public function testFilterWithMultipleNamespaces()
{
$crawler = $this->createTestXmlCrawler()->filter('media|group yt|aspectRatio');
$this->assertCount(1, $crawler, '->filter() automatically registers namespaces');
$this->assertSame('widescreen', $crawler->text());
}
public function testFilterWithDefaultNamespaceOnly()
{
$crawler = new Crawler('<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://localhost/foo</loc>
<changefreq>weekly</changefreq>
<priority>0.5</priority>
<lastmod>2012-11-16</lastmod>
</url>
<url>
<loc>http://localhost/bar</loc>
<changefreq>weekly</changefreq>
<priority>0.5</priority>
<lastmod>2012-11-16</lastmod>
</url>
</urlset>
');
$this->assertEquals(2, $crawler->filter('url')->count());
}
public function testSelectLink()
{
$crawler = $this->createTestCrawler();
$this->assertNotSame($crawler, $crawler->selectLink('Foo'), '->selectLink() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->selectLink() returns a new instance of a crawler');
$this->assertCount(1, $crawler->selectLink('Fabien\'s Foo'), '->selectLink() selects links by the node values');
$this->assertCount(1, $crawler->selectLink('Fabien\'s Bar'), '->selectLink() selects links by the alt attribute of a clickable image');
$this->assertCount(2, $crawler->selectLink('Fabien"s Foo'), '->selectLink() selects links by the node values');
$this->assertCount(2, $crawler->selectLink('Fabien"s Bar'), '->selectLink() selects links by the alt attribute of a clickable image');
$this->assertCount(1, $crawler->selectLink('\' Fabien"s Foo'), '->selectLink() selects links by the node values');
$this->assertCount(1, $crawler->selectLink('\' Fabien"s Bar'), '->selectLink() selects links by the alt attribute of a clickable image');
$this->assertCount(4, $crawler->selectLink('Foo'), '->selectLink() selects links by the node values');
$this->assertCount(4, $crawler->selectLink('Bar'), '->selectLink() selects links by the node values');
}
public function testSelectImage()
{
$crawler = $this->createTestCrawler();
$this->assertNotSame($crawler, $crawler->selectImage('Bar'), '->selectImage() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->selectImage() returns a new instance of a crawler');
$this->assertCount(1, $crawler->selectImage('Fabien\'s Bar'), '->selectImage() selects images by alt attribute');
$this->assertCount(2, $crawler->selectImage('Fabien"s Bar'), '->selectImage() selects images by alt attribute');
$this->assertCount(1, $crawler->selectImage('\' Fabien"s Bar'), '->selectImage() selects images by alt attribute');
}
public function testSelectButton()
{
$crawler = $this->createTestCrawler();
$this->assertNotSame($crawler, $crawler->selectButton('FooValue'), '->selectButton() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->selectButton() returns a new instance of a crawler');
$this->assertEquals(1, $crawler->selectButton('FooValue')->count(), '->selectButton() selects buttons');
$this->assertEquals(1, $crawler->selectButton('FooName')->count(), '->selectButton() selects buttons');
$this->assertEquals(1, $crawler->selectButton('FooId')->count(), '->selectButton() selects buttons');
$this->assertEquals(1, $crawler->selectButton('BarValue')->count(), '->selectButton() selects buttons');
$this->assertEquals(1, $crawler->selectButton('BarName')->count(), '->selectButton() selects buttons');
$this->assertEquals(1, $crawler->selectButton('BarId')->count(), '->selectButton() selects buttons');
$this->assertEquals(1, $crawler->selectButton('FooBarValue')->count(), '->selectButton() selects buttons with form attribute too');
$this->assertEquals(1, $crawler->selectButton('FooBarName')->count(), '->selectButton() selects buttons with form attribute too');
}
public function testSelectButtonWithSingleQuotesInNameAttribute()
{
$html = <<<'HTML'
<!DOCTYPE html>
<html lang="en">
<body>
<div id="action">
<a href="/index.php?r=site/login">Login</a>
</div>
<form id="login-form" action="/index.php?r=site/login" method="post">
<button type="submit" name="Click 'Here'">Submit</button>
</form>
</body>
</html>
HTML;
$crawler = new Crawler($html);
$this->assertCount(1, $crawler->selectButton('Click \'Here\''));
}
public function testSelectButtonWithDoubleQuotesInNameAttribute()
{
$html = <<<'HTML'
<!DOCTYPE html>
<html lang="en">
<body>
<div id="action">
<a href="/index.php?r=site/login">Login</a>
</div>
<form id="login-form" action="/index.php?r=site/login" method="post">
<button type="submit" name='Click "Here"'>Submit</button>
</form>
</body>
</html>
HTML;
$crawler = new Crawler($html);
$this->assertCount(1, $crawler->selectButton('Click "Here"'));
}
public function testLink()
{
$crawler = $this->createTestCrawler('http://example.com/bar/')->selectLink('Foo');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Link', $crawler->link(), '->link() returns a Link instance');
$this->assertEquals('POST', $crawler->link('post')->getMethod(), '->link() takes a method as its argument');
$crawler = $this->createTestCrawler('http://example.com/bar')->selectLink('GetLink');
$this->assertEquals('http://example.com/bar?get=param', $crawler->link()->getUri(), '->link() returns a Link instance');
try {
$this->createTestCrawler()->filterXPath('//ol')->link();
$this->fail('->link() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->link() throws an \InvalidArgumentException if the node list is empty');
}
}
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage The selected node should be instance of DOMElement
*/
public function testInvalidLink()
{
$crawler = $this->createTestCrawler('http://example.com/bar/');
$crawler->filterXPath('//li/text()')->link();
}
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage The selected node should be instance of DOMElement
*/
public function testInvalidLinks()
{
$crawler = $this->createTestCrawler('http://example.com/bar/');
$crawler->filterXPath('//li/text()')->link();
}
public function testImage()
{
$crawler = $this->createTestCrawler('http://example.com/bar/')->selectImage('Bar');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Image', $crawler->image(), '->image() returns an Image instance');
try {
$this->createTestCrawler()->filterXPath('//ol')->image();
$this->fail('->image() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->image() throws an \InvalidArgumentException if the node list is empty');
}
}
public function testSelectLinkAndLinkFiltered()
{
$html = <<<'HTML'
<!DOCTYPE html>
<html lang="en">
<body>
<div id="action">
<a href="/index.php?r=site/login">Login</a>
</div>
<form id="login-form" action="/index.php?r=site/login" method="post">
<button type="submit">Submit</button>
</form>
</body>
</html>
HTML;
$crawler = new Crawler($html);
$filtered = $crawler->filterXPath("descendant-or-self::*[@id = 'login-form']");
$this->assertCount(0, $filtered->selectLink('Login'));
$this->assertCount(1, $filtered->selectButton('Submit'));
$filtered = $crawler->filterXPath("descendant-or-self::*[@id = 'action']");
$this->assertCount(1, $filtered->selectLink('Login'));
$this->assertCount(0, $filtered->selectButton('Submit'));
$this->assertCount(1, $crawler->selectLink('Login')->selectLink('Login'));
$this->assertCount(1, $crawler->selectButton('Submit')->selectButton('Submit'));
}
public function testChaining()
{
$crawler = new Crawler('<div name="a"><div name="b"><div name="c"></div></div></div>');
$this->assertEquals('a', $crawler->filterXPath('//div')->filterXPath('div')->filterXPath('div')->attr('name'));
}
public function testLinks()
{
$crawler = $this->createTestCrawler('http://example.com/bar/')->selectLink('Foo');
$this->assertInternalType('array', $crawler->links(), '->links() returns an array');
$this->assertCount(4, $crawler->links(), '->links() returns an array');
$links = $crawler->links();
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Link', $links[0], '->links() returns an array of Link instances');
$this->assertEquals(array(), $this->createTestCrawler()->filterXPath('//ol')->links(), '->links() returns an empty array if the node selection is empty');
}
public function testImages()
{
$crawler = $this->createTestCrawler('http://example.com/bar/')->selectImage('Bar');
$this->assertInternalType('array', $crawler->images(), '->images() returns an array');
$this->assertCount(4, $crawler->images(), '->images() returns an array');
$images = $crawler->images();
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Image', $images[0], '->images() returns an array of Image instances');
$this->assertEquals(array(), $this->createTestCrawler()->filterXPath('//ol')->links(), '->links() returns an empty array if the node selection is empty');
}
public function testForm()
{
$testCrawler = $this->createTestCrawler('http://example.com/bar/');
$crawler = $testCrawler->selectButton('FooValue');
$crawler2 = $testCrawler->selectButton('FooBarValue');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Form', $crawler->form(), '->form() returns a Form instance');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Form', $crawler2->form(), '->form() returns a Form instance');
$this->assertEquals($crawler->form()->getFormNode()->getAttribute('id'), $crawler2->form()->getFormNode()->getAttribute('id'), '->form() works on elements with form attribute');
$this->assertEquals(array('FooName' => 'FooBar', 'TextName' => 'TextValue', 'FooTextName' => 'FooTextValue'), $crawler->form(array('FooName' => 'FooBar'))->getValues(), '->form() takes an array of values to submit as its first argument');
$this->assertEquals(array('FooName' => 'FooValue', 'TextName' => 'TextValue', 'FooTextName' => 'FooTextValue'), $crawler->form()->getValues(), '->getValues() returns correct form values');
$this->assertEquals(array('FooBarName' => 'FooBarValue', 'TextName' => 'TextValue', 'FooTextName' => 'FooTextValue'), $crawler2->form()->getValues(), '->getValues() returns correct form values');
try {
$this->createTestCrawler()->filterXPath('//ol')->form();
$this->fail('->form() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->form() throws an \InvalidArgumentException if the node list is empty');
}
}
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage The selected node should be instance of DOMElement
*/
public function testInvalidForm()
{
$crawler = $this->createTestCrawler('http://example.com/bar/');
$crawler->filterXPath('//li/text()')->form();
}
public function testLast()
{
$crawler = $this->createTestCrawler()->filterXPath('//ul[1]/li');
$this->assertNotSame($crawler, $crawler->last(), '->last() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->last() returns a new instance of a crawler');
$this->assertEquals('Three', $crawler->last()->text());
}
public function testFirst()
{
$crawler = $this->createTestCrawler()->filterXPath('//li');
$this->assertNotSame($crawler, $crawler->first(), '->first() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->first() returns a new instance of a crawler');
$this->assertEquals('One', $crawler->first()->text());
}
public function testSiblings()
{
$crawler = $this->createTestCrawler()->filterXPath('//li')->eq(1);
$this->assertNotSame($crawler, $crawler->siblings(), '->siblings() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->siblings() returns a new instance of a crawler');
$nodes = $crawler->siblings();
$this->assertEquals(2, $nodes->count());
$this->assertEquals('One', $nodes->eq(0)->text());
$this->assertEquals('Three', $nodes->eq(1)->text());
$nodes = $this->createTestCrawler()->filterXPath('//li')->eq(0)->siblings();
$this->assertEquals(2, $nodes->count());
$this->assertEquals('Two', $nodes->eq(0)->text());
$this->assertEquals('Three', $nodes->eq(1)->text());
try {
$this->createTestCrawler()->filterXPath('//ol')->siblings();
$this->fail('->siblings() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->siblings() throws an \InvalidArgumentException if the node list is empty');
}
}
public function testNextAll()
{
$crawler = $this->createTestCrawler()->filterXPath('//li')->eq(1);
$this->assertNotSame($crawler, $crawler->nextAll(), '->nextAll() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->nextAll() returns a new instance of a crawler');
$nodes = $crawler->nextAll();
$this->assertEquals(1, $nodes->count());
$this->assertEquals('Three', $nodes->eq(0)->text());
try {
$this->createTestCrawler()->filterXPath('//ol')->nextAll();
$this->fail('->nextAll() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->nextAll() throws an \InvalidArgumentException if the node list is empty');
}
}
public function testPreviousAll()
{
$crawler = $this->createTestCrawler()->filterXPath('//li')->eq(2);
$this->assertNotSame($crawler, $crawler->previousAll(), '->previousAll() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->previousAll() returns a new instance of a crawler');
$nodes = $crawler->previousAll();
$this->assertEquals(2, $nodes->count());
$this->assertEquals('Two', $nodes->eq(0)->text());
try {
$this->createTestCrawler()->filterXPath('//ol')->previousAll();
$this->fail('->previousAll() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->previousAll() throws an \InvalidArgumentException if the node list is empty');
}
}
public function testChildren()
{
$crawler = $this->createTestCrawler()->filterXPath('//ul');
$this->assertNotSame($crawler, $crawler->children(), '->children() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->children() returns a new instance of a crawler');
$nodes = $crawler->children();
$this->assertEquals(3, $nodes->count());
$this->assertEquals('One', $nodes->eq(0)->text());
$this->assertEquals('Two', $nodes->eq(1)->text());
$this->assertEquals('Three', $nodes->eq(2)->text());
try {
$this->createTestCrawler()->filterXPath('//ol')->children();
$this->fail('->children() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->children() throws an \InvalidArgumentException if the node list is empty');
}