Viewing file:  DOMNodeComparator.php (2.61 KB) -rw-r--r--
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<?php declare(strict_types=1);
/*
* This file is part of sebastian/comparator.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\Comparator;
use function assert;
use function mb_strtolower;
use function sprintf;
use DOMDocument;
use DOMNode;
use ValueError;
final class DOMNodeComparator extends ObjectComparator
{
public function accepts(mixed $expected, mixed $actual): bool
{
return $expected instanceof DOMNode && $actual instanceof DOMNode;
}
/**
* @param array<mixed> $processed
*
* @throws ComparisonFailure
*/
public function assertEquals(mixed $expected, mixed $actual, float $delta = 0.0, bool $canonicalize = false, bool $ignoreCase = false, array &$processed = []): void
{
assert($expected instanceof DOMNode);
assert($actual instanceof DOMNode);
$expectedAsString = $this->nodeToText($expected, true, $ignoreCase);
$actualAsString = $this->nodeToText($actual, true, $ignoreCase);
if ($expectedAsString !== $actualAsString) {
$type = $expected instanceof DOMDocument ? 'documents' : 'nodes';
throw new ComparisonFailure(
$expected,
$actual,
$expectedAsString,
$actualAsString,
sprintf("Failed asserting that two DOM %s are equal.\n", $type),
);
}
}
/**
* Returns the normalized, whitespace-cleaned, and indented textual
* representation of a DOMNode.
*/
private function nodeToText(DOMNode $node, bool $canonicalize, bool $ignoreCase): string
{
if ($canonicalize) {
$document = new DOMDocument;
try {
$c14n = $node->C14N();
assert(!empty($c14n));
@$document->loadXML($c14n);
} catch (ValueError) {
}
$node = $document;
}
if ($node instanceof DOMDocument) {
$document = $node;
} else {
$document = $node->ownerDocument;
}
assert($document instanceof DOMDocument);
$document->formatOutput = true;
$document->normalizeDocument();
if ($node instanceof DOMDocument) {
$text = $node->saveXML();
} else {
$text = $document->saveXML($node);
}
assert($text !== false);
if ($ignoreCase) {
return mb_strtolower($text, 'UTF-8');
}
return $text;
}
}
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