<?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\Tests\Component\DomCrawler;
use Symfony\Component\DomCrawler\Crawler;
class CrawlerTest extends \PHPUnit_Framework_TestCase
{
public function testConstructor()
{
$crawler = new Crawler();
$this->assertEquals(0, count($crawler), '__construct() returns an empty crawler');
$crawler = new Crawler(new \DOMNode());
$this->assertEquals(1, count($crawler), '__construct() takes a node as a first argument');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::add
*/
public function testAdd()
{
$crawler = new Crawler();
$crawler->add($this->createDomDocument());
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->add() adds nodes from a \DOMDocument');
$crawler = new Crawler();
$crawler->add($this->createNodeList());
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->add() adds nodes from a \DOMNodeList');
foreach ($this->createNodeList() as $node) {
$list[] = $node;
}
$crawler = new Crawler();
$crawler->add($list);
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->add() adds nodes from an array of nodes');
$crawler = new Crawler();
$crawler->add($this->createNodeList()->item(0));
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->add() adds nodes from an \DOMNode');
$crawler = new Crawler();
$crawler->add('<html><body>Foo</body></html>');
$this->assertEquals('Foo', $crawler->filter('body')->text(), '->add() adds nodes from a string');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addHtmlContent
*/
public function testAddHtmlContent()
{
$crawler = new Crawler();
$crawler->addHtmlContent('<html><div class="foo"></html>', 'UTF-8');
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->addHtmlContent() adds nodes from an HTML string');
$crawler->addHtmlContent('<html><head><base href="http://symfony.com"></head><a href="/contact"></a></html>', 'UTF-8');
$this->assertEquals('http://symfony.com', $crawler->filter('base')->attr('href'), '->addHtmlContent() adds nodes from an HTML string');
$this->assertEquals('http://symfony.com/contact', $crawler->filter('a')->link()->getUri(), '->addHtmlContent() adds nodes from an HTML string');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addXmlContent
*/
public function testAddXmlContent()
{
$crawler = new Crawler();
$crawler->addXmlContent('<html><div class="foo"></div></html>', 'UTF-8');
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->addXmlContent() adds nodes from an XML string');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addContent
*/
public function testAddContent()
{
$crawler = new Crawler();
$crawler->addContent('<html><div class="foo"></html>', 'text/html; charset=UTF-8');
$this->assertEquals('foo', $crawler->filter('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->filter('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->filter('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->filter('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->filter('div')->attr('class'), '->addContent() adds nodes from an XML string');
$crawler = new Crawler();
$crawler->addContent('foo bar', 'text/plain');
$this->assertEquals(0, count($crawler), '->addContent() does nothing if the type is not (x|ht)ml');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addDocument
*/
public function testAddDocument()
{
$crawler = new Crawler();
$crawler->addDocument($this->createDomDocument());
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->addDocument() adds nodes from a \DOMDocument');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addNodeList
*/
public function testAddNodeList()
{
$crawler = new Crawler();
$crawler->addNodeList($this->createNodeList());
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->addNodeList() adds nodes from a \DOMNodeList');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addNodes
*/
public function testAddNodes()
{
foreach ($this->createNodeList() as $node) {
$list[] = $node;
}
$crawler = new Crawler();
$crawler->addNodes($list);
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->addNodes() adds nodes from an array of nodes');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::addNode
*/
public function testAddNode()
{
$crawler = new Crawler();
$crawler->addNode($this->createNodeList()->item(0));
$this->assertEquals('foo', $crawler->filter('div')->attr('class'), '->addNode() adds nodes from an \DOMNode');
}
public function testClear()
{
$crawler = new Crawler(new \DOMNode());
$crawler->clear();
$this->assertEquals(0, count($crawler), '->clear() removes all the nodes from the crawler');
}
public function testEq()
{
$crawler = $this->createTestCrawler()->filter('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');
$this->assertEquals(0, count($crawler->eq(100)), '->eq() returns an empty crawler if the nth node does not exist');
}
public function testEach()
{
$data = $this->createTestCrawler()->filter('ul.first li')->each(function ($node, $i)
{
return $i.'-'.$node->nodeValue;
});
$this->assertEquals(array('0-One', '1-Two', '2-Three'), $data, '->each() executes an anonymous function on each node of the list');
}
public function testReduce()
{
$crawler = $this->createTestCrawler()->filter('ul.first li');
$nodes = $crawler->reduce(function ($node, $i)
{
return $i == 1 ? false : true;
});
$this->assertNotSame($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');
$this->assertEquals(2, count($nodes), '->reduce() filters the nodes in the list');
}
public function testAttr()
{
$this->assertEquals('first', $this->createTestCrawler()->filter('li')->attr('class'), '->attr() returns the attribute of the first element of the node list');
try {
$this->createTestCrawler()->filter('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 testText()
{
$this->assertEquals('One', $this->createTestCrawler()->filter('li')->text(), '->text() returns the node value of the first element of the node list');
try {
$this->createTestCrawler()->filter('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');
}
}
public function testExtract()
{
$crawler = $this->createTestCrawler()->filter('ul.first 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(), $this->createTestCrawler()->filter('lo')->extract('_text'), '->extract() returns an empty array if the node list is empty');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::filterXPath
*/
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()->filter('ul');
$this->assertEquals(6, count($crawler->filterXPath('//li')), '->filterXPath() filters the node list with the XPath expression');
}
/**
* @covers Symfony\Component\DomCrawler\Crawler::filter
*/
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');
$this->assertEquals(6, count($crawler->filter('li')), '->filter() filters the node list with the CSS selector');
}
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');
$this->assertEquals(1, count($crawler->selectLink('Fabien\'s Foo')), '->selectLink() selects links by the node values');
$this->assertEquals(1, count($crawler->selectLink('Fabien\'s Bar')), '->selectLink() selects links by the alt attribute of a clickable image');
$this->assertEquals(2, count($crawler->selectLink('Fabien"s Foo')), '->selectLink() selects links by the node values');
$this->assertEquals(2, count($crawler->selectLink('Fabien"s Bar')), '->selectLink() selects links by the alt attribute of a clickable image');
$this->assertEquals(1, count($crawler->selectLink('\' Fabien"s Foo')), '->selectLink() selects links by the node values');
$this->assertEquals(1, count($crawler->selectLink('\' Fabien"s Bar')), '->selectLink() selects links by the alt attribute of a clickable image');
$this->assertEquals(4, count($crawler->selectLink('Foo')), '->selectLink() selects links by the node values');
$this->assertEquals(4, count($crawler->selectLink('Bar')), '->selectLink() selects links by the node values');
}
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');
}
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()->filter('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');
}
}
public function testLinks()
{
$crawler = $this->createTestCrawler('http://example.com/bar/')->selectLink('Foo');
$this->assertInternalType('array', $crawler->links(), '->links() returns an array');
$this->assertEquals(4, count($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()->filter('ol')->links(), '->links() returns an empty array if the node selection is empty');
}
public function testForm()
{
$crawler = $this->createTestCrawler('http://example.com/bar/')->selectButton('FooValue');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Form', $crawler->form(), '->form() returns a Form instance');
$this->assertEquals(array('FooName' => 'FooBar'), $crawler->form(array('FooName' => 'FooBar'))->getValues(), '->form() takes an array of values to submit as its first argument');
try {
$this->createTestCrawler()->filter('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');
}
}
public function testLast()
{
$crawler = $this->createTestCrawler()->filter('ul.first 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()->filter('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()->filter('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()->filter('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()->filter('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()->filter('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()->filter('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()->filter('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()->filter('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()->filter('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()->filter('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');
}
}
public function testParents()
{
$crawler = $this->createTestCrawler()->filter('li:first-child');
$this->assertNotSame($crawler, $crawler->parents(), '->parents() returns a new instance of a crawler');
$this->assertInstanceOf('Symfony\\Component\\DomCrawler\\Crawler', $crawler, '->parents() returns a new instance of a crawler');
$nodes = $crawler->parents();
$this->assertEquals(3, $nodes->count());
$nodes = $this->createTestCrawler()->filter('html')->parents();
$this->assertEquals(0, $nodes->count());
try {
$this->createTestCrawler()->filter('ol')->parents();
$this->fail('->parents() throws an \InvalidArgumentException if the node list is empty');
} catch (\InvalidArgumentException $e) {
$this->assertTrue(true, '->parents() throws an \InvalidArgumentException if the node list is empty');
}
}
public function createTestCrawler($uri = null)
{
$dom = new \DOMDocument();
$dom->loadHTML('
<html>
<body>
<a href="foo">Foo</a>
<a href="/foo"> Fabien\'s Foo </a>
<a href="/foo">Fabien"s Foo</a>
<a href="/foo">\' Fabien"s Foo</a>
<a href="/bar"><img alt="Bar"/></a>
<a href="/bar"><img alt=" Fabien\'s Bar "/></a>
<a href="/bar"><img alt="Fabien"s Bar"/></a>
<a href="/bar"><img alt="\' Fabien"s Bar"/></a>
<a href="?get=param">GetLink</a>
<form action="foo">
<input type="submit" value="FooValue" name="FooName" id="FooId" />
<input type="button" value="BarValue" name="BarName" id="BarId" />
<button value="ButtonValue" name="ButtonName" id="ButtonId" />
</form>
<ul class="first">
<li class="first">One</li>
<li>Two</li>
<li>Three</li>
</ul>
<ul>
<li>One Bis</li>
<li>Two Bis</li>
<li>Three Bis</li>
</ul>
</body>
</html>
');
return new Crawler($dom, $uri);
}
protected function createDomDocument()
{
$dom = new \DOMDocument();
$dom->loadXML('<html><div class="foo"></div></html>');
return $dom;
}
protected function createNodeList()
{
$dom = new \DOMDocument();
$dom->loadXML('<html><div class="foo"></div></html>');
$domxpath = new \DOMXPath($dom);
return $domxpath->query('//div');
}
}