hide-other-popover-side-effects.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/popovers/hide-other-popover-side-effects.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<link rel=author href="mailto:jarhar@chromium.org">

<link rel=help href="https://chromium-review.googlesource.com/c/chromium/src/+/4094463/8/third_party/blink/renderer/core/html/html_element.cc#1404">

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

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

<div id=popover1 popover=auto>popover1</div>

<div id=popover2 popover=auto>popover2</div>

<script>

test(() => {

  const popover2 = document.getElementById('popover2');

  popover1.showPopover();

  popover1.addEventListener('beforetoggle', () => {

    popover2.remove();

});

  assert_throws_dom('InvalidStateError', () => popover2.showPopover(),

    "popover1's beforetoggle event handler removes popover2 so showPopover should throw.");

  assert_false(popover2.matches(':popover-open'), 'popover2 should not match :popover-open once it is closed.');

}, 'Removing a popover while it is opening and force closing another popover should throw an exception.');

</script>