customizable-combobox-popover-exception.tentative.html

Enable keyboard shortcuts

This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/forms/customizable-combobox/customizable-combobox-popover-exception.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

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

<link rel=help href="https://open-ui.org/components/combobox.explainer/">

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

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

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

<script src="/resources/testdriver-vendor.js"></script>

<script src="/resources/testdriver-actions.js"></script>

<style>

input, datalist {

  appearance: base;

</style>

<input list=datalist>

<datalist id=datalist>

  <option>one</option>

  <option>two</option>

</datalist>

<script>

const ArrowDown = '\uE015';

function pressKey(key) {

  return (new test_driver.Actions()

    .keyDown(key)

    .keyUp(key))

    .send();

promise_test(async () => {

  const input = document.querySelector('input');

  const datalist = document.querySelector('datalist');

  let beforetoggles = 0;

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

    datalist.remove();

    beforetoggles++;

});

  input.focus();

  assert_equals(beforetoggles, 1,

    'beforetoggle event listener should have run once after calling input.focus().');

  assert_false(datalist.matches(':popover-open'),

    'Datalist should not be open after disconnecting in beforetoggle.');

  document.body.appendChild(datalist);

  beforetoggles = 0;

  await pressKey(ArrowDown);

  assert_equals(beforetoggles, 1,

    'beforetoggle event listener should have run once after pressing arrow down.');

  assert_false(datalist.matches(':popover-open'),

    'Datalist should not be open after disconnecting in beforetoggle.');

}, 'Datalist popover should not show when an exception is encountered when showing the popover.');

</script>