1 files changed, 93 insertions, 0 deletions
diff --git a/vendor/sebastian/comparator/src/DOMNodeComparator.php b/vendor/sebastian/comparator/src/DOMNodeComparator.php
new file mode 100644
index 000000000..5bf854eae
--- /dev/null
+++ b/vendor/sebastian/comparator/src/DOMNodeComparator.php
@@ -0,0 +1,93 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use function sprintf;
+use function strtolower;
+use DOMDocument;
+use DOMNode;
+use ValueError;
+
+/**
+ * Compares DOMNode instances for equality.
+ */
+class DOMNodeComparator extends ObjectComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return $expected instanceof DOMNode && $actual instanceof DOMNode;
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     * @param array $processed    List of already processed elements (used to prevent infinite recursion)
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false, array &$processed = [])/*: void*/
+    {
+        $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,
+                false,
+                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) {
+            $document = new DOMDocument;
+
+            try {
+                @$document->loadXML($node->C14N());
+            } catch (ValueError $e) {
+            }
+
+            $node = $document;
+        }
+
+        $document = $node instanceof DOMDocument ? $node : $node->ownerDocument;
+
+        $document->formatOutput = true;
+        $document->normalizeDocument();
+
+        $text = $node instanceof DOMDocument ? $node->saveXML() : $document->saveXML($node);
+
+        return $ignoreCase ? strtolower($text) : $text;
+    }
+}