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<!DOCTYPE html>
<link rel=author href="mailto:jarhar@chromium.org">
<link rel=help href="https://issues.chromium.org/issues/417119055">
<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>
select, ::picker(select) {
appearance: base-select;
}
</style>
<select>
<optgroup label=group1>
<option class=one>one</option>
<option class=two>two</option>
</optgroup>
<optgroup label=group2>
<option class=three>three</option>
<option class=four>four</option>
</optgroup>
<optgroup label=group3>
<option class=five>five</option>
<option class=six>six</option>
</optgroup>
</select>
<script>
const ArrowUp = '\uE013';
const ArrowDown = '\uE015';
const Space = ' ';
function sendKey(key) {
return (new test_driver.Actions()
.keyDown(key)
.keyUp(key))
.send();
}
promise_test(async () => {
const select = document.querySelector('select');
const options = [
document.querySelector('.one'),
document.querySelector('.two'),
document.querySelector('.three'),
document.querySelector('.four'),
document.querySelector('.five'),
document.querySelector('.six')
];
assert_equals(getComputedStyle(select).appearance, 'base-select',
'appearance:base-select must be supported to run this test.');
select.focus();
await sendKey(Space);
assert_true(select.matches(':open'),
'Space should open picker.');
assert_equals(document.activeElement, options[0],
'First option should be initially focused.');
for (let i = 1; i < 6; i++) {
await sendKey(ArrowDown);
assert_equals(document.activeElement, options[i],
`Option ${i} should be focused after ArrowDown.`);
}
for (let i = 4; i > -1; i--) {
await sendKey(ArrowUp);
assert_equals(document.activeElement, options[i],
`Option ${i} should be focused after ArrowUp.`);
}
}, 'Keyboard navigation forwards and backwards should visit each option with optgroups.');
</script>
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