DocumentFragment-querySelectorAll-after-modification.html

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This WPT test may be referenced by the following Test IDs:
- /dom/nodes/DocumentFragment-querySelectorAll-after-modification.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>querySelectorAll should still work on DocumentFragments after they are modified</title>

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

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

<!-- Regression test for https://github.com/jsdom/jsdom/issues/2290 -->

<script>

"use strict";

setup({ single_test: true });

const frag = document.createDocumentFragment();

frag.appendChild(document.createElement("div"));

assert_array_equals(frag.querySelectorAll("img"), [], "before modification");

frag.appendChild(document.createElement("div"));

// If the bug is present, this will throw.

assert_array_equals(frag.querySelectorAll("img"), [], "after modification");

done();

</script>