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Merge pull request #11 from j0k3r/append-id

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Avoid adding id that might already exists
pull/12/head
Jeremy Benoist 10 years ago
parent 41d7440c6e 2951936e00
commit 9181fd1a2c
3 changed files with 147 additions and 63 deletions
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  1. 4
      .travis.yml
  2. 145
      src/Readability.php
  3. 61
      tests/ReadabilityTest.php

4
.travis.yml
Unescape View File

@ -23,6 +23,10 @@ install:
- composer self-update - composer self-update
before_script: before_script:
# disable TLS for composer because openssl is disabled for PHP 5.3.3 on travis
# see: https://blog.travis-ci.com/upcoming_ubuntu_11_10_migration/
- if [[ $TRAVIS_PHP_VERSION = 5.3.3 ]]; then composer config -g -- disable-tls true; fi;
- if [[ $TRAVIS_PHP_VERSION = 5.3.3 ]]; then composer config -g -- secure-http false; fi;
- composer install --prefer-dist --no-interaction - composer install --prefer-dist --no-interaction
script: script:

145
src/Readability.php
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@ -69,7 +69,7 @@ class Readability
* Defined up here so we don't instantiate them repeatedly in loops. * Defined up here so we don't instantiate them repeatedly in loops.
*/ */
public $regexps = array( public $regexps = array(
'unlikelyCandidates' => '/display\s*:\s*none|ignore|\binfo|annoy|clock|date|time|author|intro|links|hidd?e|about|archive|\bprint|bookmark|tags|share|search|social|robot|published|combx|comment|mast(?:head)|subscri|community|category|disqus|extra|head|head(?:er|note)|floor|foot(?:er|note)|menu|tool|function|nav|remark|rss|shoutbox|tool|widget|meta|banner|sponsor|adsense|inner-?ad|ad-|sponsor|\badv\b|\bads\b|agr?egate?|pager|sidebar|popup|tweet|twitter/i', 'unlikelyCandidates' => '/display\s*:\s*none|ignore|\binfo|annoy|clock|date|time|author|intro|links|hidd?e|about|archive|\bprint|bookmark|tags|tag-list|share|search|social|robot|published|combx|comment|mast(?:head)|subscri|community|category|disqus|extra|head|head(?:er|note)|floor|foot(?:er|note)|menu|tool|function|nav|remark|rss|shoutbox|tool|widget|meta|banner|sponsor|adsense|inner-?ad|ad-|sponsor|\badv\b|\bads\b|agr?egate?|pager|sidebar|popup|tweet|twitter/i',
'okMaybeItsACandidate' => '/article\b|contain|\bcontent|column|general|detail|shadow|lightbox|blog|body|entry|main|page/i', 'okMaybeItsACandidate' => '/article\b|contain|\bcontent|column|general|detail|shadow|lightbox|blog|body|entry|main|page/i',
'positive' => '/read|full|article|body|\bcontent|contain|entry|main|markdown|page|attach|pagination|post|text|blog|story/i', 'positive' => '/read|full|article|body|\bcontent|contain|entry|main|markdown|page|attach|pagination|post|text|blog|story/i',
'negative' => '/bottom|stat|info|discuss|e[\-]?mail|comment|reply|log.{2}(n|ed)|sign|single|combx|com-|contact|_nav|link|media|\bout|promo|\bad-|related|scroll|shoutbox|sidebar|sponsor|shopping|teaser|recommend/i', 'negative' => '/bottom|stat|info|discuss|e[\-]?mail|comment|reply|log.{2}(n|ed)|sign|single|combx|com-|contact|_nav|link|media|\bout|promo|\bad-|related|scroll|shoutbox|sidebar|sponsor|shopping|teaser|recommend/i',
@ -214,7 +214,7 @@ class Readability
/** /**
* Get article title element. * Get article title element.
* *
* @return DOMElement * @return \DOMElement
*/ */
public function getTitle() public function getTitle()
{ {
@ -224,7 +224,7 @@ class Readability
/** /**
* Get article content element. * Get article content element.
* *
* @return DOMElement * @return \DOMElement
*/ */
public function getContent() public function getContent()
{ {
@ -326,6 +326,8 @@ class Readability
/** /**
* Debug. * Debug.
*
* @param string $msg
*/ */
protected function dbg($msg) //, $error=false) protected function dbg($msg) //, $error=false)
{ {
@ -348,11 +350,11 @@ class Readability
/** /**
* Run any post-process modifications to article content as necessary. * Run any post-process modifications to article content as necessary.
* *
* @param DOMElement * @param \DOMElement $articleContent
*/ */
public function postProcessContent($articleContent) public function postProcessContent(\DOMElement $articleContent)
{ {
if ($this->convertLinksToFootnotes && !preg_match('/\bwiki/', @$this->url)) { if ($this->convertLinksToFootnotes && !preg_match('/\bwiki/', $this->url)) {
$this->addFootnotes($articleContent); $this->addFootnotes($articleContent);
} }
} }
@ -360,7 +362,7 @@ class Readability
/** /**
* Get the article title as an H1. * Get the article title as an H1.
* *
* @return DOMElement * @return \DOMElement
*/ */
protected function getArticleTitle() protected function getArticleTitle()
{ {
@ -433,8 +435,10 @@ class Readability
* For easier reading, convert this document to have footnotes at the bottom rather than inline links. * For easier reading, convert this document to have footnotes at the bottom rather than inline links.
* *
* @see http://www.roughtype.com/archives/2010/05/experiments_in.php * @see http://www.roughtype.com/archives/2010/05/experiments_in.php
*
* @param \DOMElement $articleContent
*/ */
public function addFootnotes($articleContent) public function addFootnotes(\DOMElement $articleContent)
{ {
$footnotesWrapper = $this->dom->createElement('footer'); $footnotesWrapper = $this->dom->createElement('footer');
$footnotesWrapper->setAttribute('class', 'readability-footnotes'); $footnotesWrapper->setAttribute('class', 'readability-footnotes');
@ -496,9 +500,9 @@ class Readability
* Prepare the article node for display. Clean out any inline styles, * Prepare the article node for display. Clean out any inline styles,
* iframes, forms, strip extraneous <p> tags, etc. * iframes, forms, strip extraneous <p> tags, etc.
* *
* @param DOMElement * @param \DOMElement $articleContent
*/ */
public function prepArticle($articleContent) public function prepArticle(\DOMElement $articleContent)
{ {
if ($this->lightClean) { if ($this->lightClean) {
$this->dbg('Light clean enabled.'); $this->dbg('Light clean enabled.');
@ -595,9 +599,9 @@ class Readability
* Initialize a node with the readability object. Also checks the * Initialize a node with the readability object. Also checks the
* className/id for special names to add to its score. * className/id for special names to add to its score.
* *
* @param Element * @param \DOMElement $node
*/ */
protected function initializeNode($node) protected function initializeNode(\DOMElement $node)
{ {
if (!isset($node->tagName)) { if (!isset($node->tagName)) {
return; return;
@ -664,9 +668,11 @@ class Readability
* grabArticle - Using a variety of metrics (content score, classname, element types), find the content that is * grabArticle - Using a variety of metrics (content score, classname, element types), find the content that is
* most likely to be the stuff a user wants to read. Then return it wrapped up in a div. * most likely to be the stuff a user wants to read. Then return it wrapped up in a div.
* *
* @return DOMElement * @param \DOMElement $page
*
* @return \DOMElement
*/ */
protected function grabArticle($page = null) protected function grabArticle(\DOMElement $page = null)
{ {
if (!$page) { if (!$page) {
$page = $this->dom; $page = $this->dom;
@ -789,6 +795,7 @@ class Readability
$grandParentNode->getAttributeNode('readability')->value += $contentScore / self::GRANDPARENT_SCORE_DIVISOR; $grandParentNode->getAttributeNode('readability')->value += $contentScore / self::GRANDPARENT_SCORE_DIVISOR;
} }
} }
/* /*
* Node prepping: trash nodes that look cruddy (like ones with the class name "comment", etc). * Node prepping: trash nodes that look cruddy (like ones with the class name "comment", etc).
* This is faster to do before scoring but safer after. * This is faster to do before scoring but safer after.
@ -800,7 +807,7 @@ class Readability
$node = $candidates->item($c); $node = $candidates->item($c);
// node should be readable but not inside of an article otherwise it's probably non-readable block // node should be readable but not inside of an article otherwise it's probably non-readable block
if ($node->hasAttribute('readability') && (int) $node->getAttributeNode('readability')->value < 40 && ($node->parentNode ? strcasecmp($node->parentNode->tagName, 'article') !== 0 : true)) { if ($node->hasAttribute('readability') && (int) $node->getAttributeNode('readability')->value < 40 && ($node->parentNode ? strcasecmp($node->parentNode->tagName, 'article') !== 0 : true)) {
$this->dbg('Removing unlikely candidate '.$node->getNodePath().' by "'.$node->tagName.'" with readability '.($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0)); $this->dbg('Removing unlikely candidate (using note) '.$node->getNodePath().' by "'.$node->tagName.'" with readability '.($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0));
$node->parentNode->removeChild($node); $node->parentNode->removeChild($node);
} }
} }
@ -809,15 +816,15 @@ class Readability
for ($node = null, $c = $candidates->length - 1; $c >= 0; --$c) { for ($node = null, $c = $candidates->length - 1; $c >= 0; --$c) {
$node = $candidates->item($c); $node = $candidates->item($c);
$tagName = $node->tagName;
/* Remove unlikely candidates */ // Remove unlikely candidates
$unlikelyMatchString = $node->getAttribute('class').' '.$node->getAttribute('id').' '.$node->getAttribute('style'); $unlikelyMatchString = $node->getAttribute('class').' '.$node->getAttribute('id').' '.$node->getAttribute('style');
//$this->dbg('Processing '.$node->getNodePath().' by "'. $unlikelyMatchString.'" with readability '.($node->hasAttribute('readability') ? (int)$node->getAttributeNode('readability')->value : 0));
if (mb_strlen($unlikelyMatchString) > 3 && // don't process "empty" strings if (mb_strlen($unlikelyMatchString) > 3 && // don't process "empty" strings
preg_match($this->regexps['unlikelyCandidates'], $unlikelyMatchString) && preg_match($this->regexps['unlikelyCandidates'], $unlikelyMatchString) &&
!preg_match($this->regexps['okMaybeItsACandidate'], $unlikelyMatchString) !preg_match($this->regexps['okMaybeItsACandidate'], $unlikelyMatchString)
) { ) {
$this->dbg('Removing unlikely candidate '.$node->getNodePath().' by "'.$unlikelyMatchString.'" with readability '.($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0)); $this->dbg('Removing unlikely candidate (using conf) '.$node->getNodePath().' by "'.$unlikelyMatchString.'" with readability '.($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0));
$node->parentNode->removeChild($node); $node->parentNode->removeChild($node);
--$nodeIndex; --$nodeIndex;
} }
@ -934,9 +941,8 @@ class Readability
$nodeContent = $this->getInnerText($siblingNode, true, true); $nodeContent = $this->getInnerText($siblingNode, true, true);
$nodeLength = mb_strlen($nodeContent); $nodeLength = mb_strlen($nodeContent);
if ($nodeLength > self::MIN_NODE_LENGTH && $linkDensity < self::MAX_LINK_DENSITY) { if (($nodeLength > self::MIN_NODE_LENGTH && $linkDensity < self::MAX_LINK_DENSITY)
$append = true; || ($nodeLength < self::MIN_NODE_LENGTH && $linkDensity === 0 && preg_match('/\.( |$)/', $nodeContent))) {
} elseif ($nodeLength < self::MIN_NODE_LENGTH && $linkDensity === 0 && preg_match('/\.( |$)/', $nodeContent)) {
$append = true; $append = true;
} }
} }
@ -946,19 +952,15 @@ class Readability
$nodeToAppend = null; $nodeToAppend = null;
if (strcasecmp($siblingNodeName, 'div') !== 0 && strcasecmp($siblingNodeName, 'p') !== 0) { if (strcasecmp($siblingNodeName, 'div') !== 0 && strcasecmp($siblingNodeName, 'p') !== 0) {
/* We have a node that isn't a common block level element, like a form or td tag. Turn it into a div so it doesn't get filtered out later by accident. */ // We have a node that isn't a common block level element, like a form or td tag. Turn it into a div so it doesn't get filtered out later by accident.
$this->dbg('Altering siblingNode '.$siblingNodeName.' to div.'); $this->dbg('Altering siblingNode "'.$siblingNodeName.'" to "div".');
$nodeToAppend = $this->dom->createElement('div'); $nodeToAppend = $this->dom->createElement('div');
try { try {
if ($siblingNode->getAttribute('id')) {
$nodeToAppend->setAttribute('id', $siblingNode->getAttribute('id'));
}
$nodeToAppend->setAttribute('alt', $siblingNodeName); $nodeToAppend->setAttribute('alt', $siblingNodeName);
$nodeToAppend->innerHTML = $siblingNode->innerHTML; $nodeToAppend->innerHTML = $siblingNode->innerHTML;
} catch (Exception $e) { } catch (Exception $e) {
$this->dbg('Could not alter siblingNode '.$siblingNodeName.' to div, reverting to original.'); $this->dbg('Could not alter siblingNode "'.$siblingNodeName.'" to "div", reverting to original.');
$nodeToAppend = $siblingNode; $nodeToAppend = $siblingNode;
--$s; --$s;
--$sl; --$sl;
@ -1019,13 +1021,13 @@ class Readability
* Get the inner text of a node. * Get the inner text of a node.
* This also strips out any excess whitespace to be found. * This also strips out any excess whitespace to be found.
* *
* @param DOMElement $e * @param \DOMElement $e
* @param bool $normalizeSpaces (default: true) * @param bool $normalizeSpaces (default: true)
* @param bool $flattenLines (default: false) * @param bool $flattenLines (default: false)
* *
* @return string * @return string
*/ */
public function getInnerText($e, $normalizeSpaces = true, $flattenLines = false) public function getInnerText(\DOMElement $e, $normalizeSpaces = true, $flattenLines = false)
{ {
if (!isset($e->textContent) || $e->textContent === '') { if (!isset($e->textContent) || $e->textContent === '') {
return ''; return '';
@ -1045,9 +1047,9 @@ class Readability
/** /**
* Remove the style attribute on every $e and under. * Remove the style attribute on every $e and under.
* *
* @param DOMElement $e * @param \DOMElement $e
*/ */
public function cleanStyles($e) public function cleanStyles(\DOMElement $e)
{ {
if (!is_object($e)) { if (!is_object($e)) {
return; return;
@ -1065,7 +1067,7 @@ class Readability
* *
* @param string $text * @param string $text
* *
* @return number (integer) * @return int
*/ */
public function getCommaCount($text) public function getCommaCount($text)
{ {
@ -1078,7 +1080,7 @@ class Readability
* *
* @param string $text * @param string $text
* *
* @return number (integer) * @return int
*/ */
public function getWordCount($text) public function getWordCount($text)
{ {
@ -1090,12 +1092,12 @@ class Readability
* This is the amount of text that is inside a link divided by the total text in the node. * This is the amount of text that is inside a link divided by the total text in the node.
* Can exclude external references to differentiate between simple text and menus/infoblocks. * Can exclude external references to differentiate between simple text and menus/infoblocks.
* *
* @param DOMElement $e * @param \DOMElement $e
* @param string $excludeExternal * @param string $excludeExternal
* *
* @return number (float) * @return int
*/ */
public function getLinkDensity($e, $excludeExternal = false) public function getLinkDensity(\DOMElement $e, $excludeExternal = false)
{ {
$links = $e->getElementsByTagName('a'); $links = $e->getElementsByTagName('a');
$textLength = mb_strlen($this->getInnerText($e, true, true)); $textLength = mb_strlen($this->getInnerText($e, true, true));
@ -1119,12 +1121,12 @@ class Readability
* Get an element weight by attribute. * Get an element weight by attribute.
* Uses regular expressions to tell if this element looks good or bad. * Uses regular expressions to tell if this element looks good or bad.
* *
* @param DOMElement $element * @param \DOMElement $element
* @param string $attribute * @param string $attribute
* *
* @return number (Integer) * @return int
*/ */
protected function weightAttribute($element, $attribute) protected function weightAttribute(\DOMElement $element, $attribute)
{ {
if (!$element->hasAttribute($attribute)) { if (!$element->hasAttribute($attribute)) {
return 0; return 0;
@ -1154,20 +1156,20 @@ class Readability
/** /**
* Get an element relative weight. * Get an element relative weight.
* *
* @param DOMElement $e * @param \DOMElement $e
* *
* @return number (Integer) * @return int
*/ */
public function getWeight($e) public function getWeight(\DOMElement $e)
{ {
if (!$this->flagIsActive(self::FLAG_WEIGHT_ATTRIBUTES)) { if (!$this->flagIsActive(self::FLAG_WEIGHT_ATTRIBUTES)) {
return 0; return 0;
} }
$weight = 0; $weight = 0;
/* Look for a special classname */ // Look for a special classname
$weight += $this->weightAttribute($e, 'class'); $weight += $this->weightAttribute($e, 'class');
/* Look for a special ID */ // Look for a special ID
$weight += $this->weightAttribute($e, 'id'); $weight += $this->weightAttribute($e, 'id');
return $weight; return $weight;
@ -1176,9 +1178,9 @@ class Readability
/** /**
* Remove extraneous break tags from a node. * Remove extraneous break tags from a node.
* *
* @param DOMElement $node * @param \DOMElement $node
*/ */
public function killBreaks($node) public function killBreaks(\DOMElement $node)
{ {
$html = $node->innerHTML; $html = $node->innerHTML;
$html = preg_replace($this->regexps['killBreaks'], '<br />', $html); $html = preg_replace($this->regexps['killBreaks'], '<br />', $html);
@ -1191,27 +1193,27 @@ class Readability
* *
* Updated 2012-09-18 to preserve youtube/vimeo iframes * Updated 2012-09-18 to preserve youtube/vimeo iframes
* *
* @param DOMElement $e * @param \DOMElement $e
* @param string $tag * @param string $tag
*/ */
public function clean($e, $tag) public function clean(\DOMElement $e, $tag)
{ {
$targetList = $e->getElementsByTagName($tag); $targetList = $e->getElementsByTagName($tag);
$isEmbed = ($tag === 'audio' || $tag === 'video' || $tag === 'iframe' || $tag === 'object' || $tag === 'embed'); $isEmbed = ($tag === 'audio' || $tag === 'video' || $tag === 'iframe' || $tag === 'object' || $tag === 'embed');
for ($cur_item = null, $y = $targetList->length - 1; $y >= 0; --$y) { for ($cur_item = null, $y = $targetList->length - 1; $y >= 0; --$y) {
/* Allow youtube and vimeo videos through as people usually want to see those. */ // Allow youtube and vimeo videos through as people usually want to see those.
$cur_item = $targetList->item($y); $cur_item = $targetList->item($y);
if ($isEmbed) { if ($isEmbed) {
$attributeValues = $cur_item->getAttribute('src').' '.$cur_item->getAttribute('href'); $attributeValues = $cur_item->getAttribute('src').' '.$cur_item->getAttribute('href');
/* First, check the elements attributes to see if any of them contain known media hosts */ // First, check the elements attributes to see if any of them contain known media hosts
if (preg_match($this->regexps['media'], $attributeValues)) { if (preg_match($this->regexps['media'], $attributeValues)) {
continue; continue;
} }
/* Then check the elements inside this element for the same. */ // Then check the elements inside this element for the same.
if (preg_match($this->regexps['media'], $targetList->item($y)->innerHTML)) { if (preg_match($this->regexps['media'], $targetList->item($y)->innerHTML)) {
continue; continue;
} }
@ -1226,10 +1228,10 @@ class Readability
* "Fishy" is an algorithm based on content length, classnames, * "Fishy" is an algorithm based on content length, classnames,
* link density, number of images & embeds, etc. * link density, number of images & embeds, etc.
* *
* @param DOMElement $e * @param \DOMElement $e
* @param string $tag * @param string $tag
*/ */
public function cleanConditionally($e, $tag) public function cleanConditionally(\DOMElement $e, $tag)
{ {
if (!$this->flagIsActive(self::FLAG_CLEAN_CONDITIONALLY)) { if (!$this->flagIsActive(self::FLAG_CLEAN_CONDITIONALLY)) {
return; return;
@ -1341,9 +1343,9 @@ class Readability
/** /**
* Clean out spurious headers from an Element. Checks things like classnames and link density. * Clean out spurious headers from an Element. Checks things like classnames and link density.
* *
* @param DOMElement $e * @param \DOMElement $e
*/ */
public function cleanHeaders($e) public function cleanHeaders(\DOMElement $e)
{ {
for ($headerIndex = 1; $headerIndex < 3; ++$headerIndex) { for ($headerIndex = 1; $headerIndex < 3; ++$headerIndex) {
$headers = $e->getElementsByTagName('h'.$headerIndex); $headers = $e->getElementsByTagName('h'.$headerIndex);
@ -1355,16 +1357,33 @@ class Readability
} }
} }
/**
* Check if the given flag is active.
*
* @param int $flag
*
* @return bool
*/
public function flagIsActive($flag) public function flagIsActive($flag)
{ {
return ($this->flags & $flag) > 0; return ($this->flags & $flag) > 0;
} }
/**
* Add a flag.
*
* @param int $flag
*/
public function addFlag($flag) public function addFlag($flag)
{ {
$this->flags = $this->flags | $flag; $this->flags = $this->flags | $flag;
} }
/**
* Remove a flag.
*
* @param int $flag
*/
public function removeFlag($flag) public function removeFlag($flag)
{ {
$this->flags = $this->flags & ~$flag; $this->flags = $this->flags & ~$flag;

61
tests/ReadabilityTest.php
Unescape View File

@ -379,4 +379,65 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
$this->assertContains('<iframe src="https://www.youtube.com/embed/PUep6xNeKjA" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"> </iframe>', $readability->getContent()->innerHTML); $this->assertContains('<iframe src="https://www.youtube.com/embed/PUep6xNeKjA" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"> </iframe>', $readability->getContent()->innerHTML);
$this->assertContains('3D Touch', $readability->getTitle()->innerHTML); $this->assertContains('3D Touch', $readability->getTitle()->innerHTML);
} }
/**
* This should generate an Exception "DOMElement::setAttribute(): ID post-60 already defined"
*/
public function testAppendIdAlreadyHere()
{
$data = '<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1.0">
</head>
<body>
<div class="container">
<header class="header sml-text-center med-text-left" role="banner">
<h1 class="no-margin"><a class="maintitle" href="https://0.0.0.0" title="Bloc-notes">Bloc-notes</a></h1>
<h2 class="h5 no-margin"></h2>
</header>
<nav class="nav" role="navigation">
<div class="responsive-menu">
<label for="menu">Menu</label>
<input type="checkbox" id="menu">
</div>
</nav>
<article class="article" role="article" id="post-60">
<section>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are<br/>
This is an awesome text with some links, here there are
</section>
<footer>
<small>
Classé dans : <a class="noactive" title="Services réseaux">Services réseaux</a>
</small>
</footer>
</article>
</div>
</body>
</html>';
$readability = new ReadabilityTested($data, 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
// $this->assertContains('<iframe src="https://www.youtube.com/embed/PUep6xNeKjA" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"> </iframe>', $readability->getContent()->innerHTML);
// $this->assertContains('3D Touch', $readability->getTitle()->innerHTML);
}
} }

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