Element-closest-null-selectors.html

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This WPT test may be referenced by the following Test IDs:
- /dom/nodes/Element-closest-null-selectors.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>element.closest() with #null and .null selectors</title>

<meta charset="utf-8">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<!-- Regression test for https://github.com/jsdom/jsdom/issues/3466 -->

<p id="testP">Some text</p>

<script>

"use strict";

test(() => {

  const p = document.getElementById("testP");

  assert_equals(p.closest("#null"), null);

}, "element.closest('#null') should return null");

test(() => {

  const p = document.getElementById("testP");

  assert_equals(p.closest(".null"), null);

}, "element.closest('.null') should return null");

</script>