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<?php
declare(strict_types = 1);
namespace HtmlParser\Tests;
use PHPUnit\Framework\TestCase;
use HtmlParser\Parser;
use DOMDocument;
use DOMDocumentFragment;
class HtmlParserTest extends TestCase
{
public function testHtmlFragment()
{
$html = '<img src="http://example.com/image.png?123456" alt="Image"><span>Hello world</span>';
$fragment = Parser::parseFragment($html);
$this->assertInstanceOf(DOMDocumentFragment::class, $fragment);
$this->assertCount(2, $fragment->childNodes);
$this->assertSame('img', $fragment->childNodes->item(0)->tagName);
$this->assertSame($html, Parser::stringify($fragment));
}
public function testHtmlDocument()
{
$html = <<<HTML
<!DOCTYPE html>
<html><body>
<img src="http://example.com/image.png?123456" alt="Image">
</body></html>
HTML;
$document = Parser::parse($html);
$this->assertInstanceOf(DOMDocument::class, $document);
$this->assertCount(1, $document->getElementsByTagName('html'));
$this->assertCount(1, $document->getElementsByTagName('body'));
$this->assertCount(1, $document->getElementsByTagName('img'));
$this->assertSame($html, trim(Parser::stringify($document)));
}
public function testHtmlDocumentFragment()
{
$html = '<img src="http://example.com/image.png?123456" alt="Image">';
$htmlFinal = <<<HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><img src="http://example.com/image.png?123456" alt="Image"></body></html>
HTML;
$document = Parser::parse($html);
$this->assertInstanceOf(DOMDocument::class, $document);
$this->assertCount(1, $document->getElementsByTagName('html'));
$this->assertCount(1, $document->getElementsByTagName('body'));
$this->assertCount(1, $document->getElementsByTagName('img'));
$this->assertSame($htmlFinal, trim(Parser::stringify($document)));
}
public function testOnlyText()
{
$html = 'hello world';
$document = Parser::parse($html);
$this->assertInstanceOf(DOMDocument::class, $document);
$this->assertCount(1, $document->getElementsByTagName('html'));
$this->assertCount(1, $document->getElementsByTagName('body'));
}
}
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