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Test Info:

<!DOCTYPE html>
<html class=reftest-wait>
<link rel=match href="option-label-in-shadow-tree-ref.html">
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<div id="host"></div>
<script>
const host = document.getElementById("host");
host.attachShadow({ mode: "open" }).innerHTML = `
<style>
select, ::picker(select) {
appearance: base-select;
}
select:focus-visible {
outline: none;
}
</style>
<select>
<option label="one"></option>
<option label="two"></option>
</select>
`;
(async () => {
const select = host.shadowRoot.querySelector('select');
await new test_driver.Actions()
.pointerMove(1, 1, { origin: select })
.pointerDown()
.pointerUp()
.send();
await new Promise(requestAnimationFrame);
document.documentElement.classList.remove('reftest-wait');
})();
</script>