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HtmlHelperTest.php
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HtmlHelperTest.php
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<?php
namespace MediaWiki\Tests\Unit;
use MediaWiki\Html\HtmlHelper;
use MediaWikiUnitTestCase;
use Wikimedia\RemexHtml\HTMLData;
use Wikimedia\RemexHtml\Serializer\SerializerNode;
use Wikimedia\RemexHtml\Tokenizer\PlainAttributes;
/**
* @covers \MediaWiki\Html\HtmlHelper
*/
class HtmlHelperTest extends MediaWikiUnitTestCase {
public function testModifyElements() {
$shouldModifyCallback = static function ( SerializerNode $node ) {
return $node->namespace === HTMLData::NS_HTML
&& $node->name === 'a'
&& isset( $node->attrs['href'] );
};
$modifyCallbackInPlace = static function ( SerializerNode $node ) {
$node->attrs['href'] = 'https://tracker.org/' . $node->attrs['href'];
return $node;
};
$input = '<p>Foo <a href="https://example.org/">bar</a> baz</p>';
$expectedOutput = '<p>Foo <a href="https://tracker.org/https://example.org/">bar</a> baz</p>';
$output = HtmlHelper::modifyElements( $input, $shouldModifyCallback, $modifyCallbackInPlace );
$this->assertSame( $expectedOutput, $output );
$modifyCallbackNew = static function ( SerializerNode $node ) {
$href = 'https://tracker.org/' . $node->attrs['href'];
$newNode = new SerializerNode( $node->id, $node->parentId, $node->namespace, $node->name,
new PlainAttributes( [ 'href' => $href ] ), $node->void );
$node->attrs['href'] = 'https://tracker.org/' . $node->attrs['href'];
return $newNode;
};
$output = HtmlHelper::modifyElements( $input, $shouldModifyCallback, $modifyCallbackNew );
$this->assertSame( $expectedOutput, $output );
// Check the "legacy compatibility" mode, for void elements like <link>
$input = "<link data-test='<style data-mw-deduplicate=\"&nbsp;\"&gt;bar</style&gt;'>";
$shouldModifyCallback = static function ( SerializerNode $node ) {
return false;
};
// HTML5 output
$expectedOutput = '<link data-test="<style data-mw-deduplicate=&quot;&nbsp;&quot;>bar</style>">';
$output = HtmlHelper::modifyElements( $input, $shouldModifyCallback, $modifyCallbackInPlace, true );
$this->assertSame( $expectedOutput, $output );
// "Legacy" output
$expectedOutput = '<link data-test="<style data-mw-deduplicate=&quot;&#160;&quot;&gt;bar</style&gt;" />';
$output = HtmlHelper::modifyElements( $input, $shouldModifyCallback, $modifyCallbackInPlace, false );
$this->assertSame( $expectedOutput, $output );
}
}

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