File: value-defaultValue-textContent-xhtml.xhtml

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<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>textarea element value/defaultValue/textContent functionality</title>
<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me"/>
<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-textarea-value"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
"use strict";

test(() => {

  const textarea = document.createElement("textarea");

  textarea.appendChild(document.createCDATASection("foo bar baz"));
  assert_equals(textarea.defaultValue, "foo bar baz", "the defaultValue should reflect the textContent");
  assert_equals(textarea.value, "foo bar baz",
    "changing the child text content should change the raw value, and subsequently the api value");

}, "defaultValue and value include CDATASection Text nodes");
</script>
</body>
</html>