Unsuspected escaping non ASCI symbols in DOMDocuments comparing result

[Ovsyanka]

When i try to compare two DOMDocuments with russian symbols in PHPUnit (which uses this comparator) i have a problem.
Information about encoding lost while comparing documents and in result all russian symbols become encoded like this: <TagName>&#x41F;&#x43E;&#x43B;&#x44C;&#x437;&#x43E;&#x432;&#x430;&#x442;&#x435;&#x43B;&#x44C</TagName> instead of expected <TagName>Пользователь</TagName>
Encoding information lost in DOMNodeComparator::nodeToText. You can see it here:

$xml = '<?xml version="1.0" encoding="utf-8"?><root>тест</root>';
$document = new \DOMDocument;
$document->loadXML($xml);
echo("encoding: " . $document ->encoding . "\n"); // encoding: utf-8
echo("xml: " . $document ->saveXml() . "\n"); // xml: <?xml version="1.0" encoding="utf-8"? ><root>тест</root>
$document->loadXML($document->C14N());
echo("encoding: " . $document ->encoding . "\n"); //encoding:
echo("xml: " . $document ->saveXml() . "\n"); // xml: <?xml version="1.0"? ><root>&#x442;&#x435;&#x441;&#x442;</root>

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[stale]

This issue has been automatically closed because it has not had activity since it was marked as stale. Thank you for your contributions.