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