textarea-validity-valueMissing-inside-datalist.html

<!doctype html>
<meta charset="utf-8">
<title>textarea element with "required" attribute and empty value is considered "suffering from being missing" even if inside datalist element</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/form-elements.html#the-textarea-element:suffering-from-being-missing">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<datalist>
  <textarea required></textarea>
</datalist>

<script>
test(() => {
  const textarea = document.querySelector("textarea");

  assert_true(textarea.validity.valueMissing);
  assert_false(textarea.validity.valid);
});
</script>

chromium/third_party/blink/web_tests/external/wpt/html/semantics/forms/the-textarea-element/textarea-validity-valueMissing-inside-datalist.html