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firefox/testing/web-platform/tests/screen-orientation/event-before-promise.html
Daniel Baumann 5e9a113729
Adding upstream version 140.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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<!DOCTYPE html>
<meta charset="utf-8" />
<meta viewport="width=device-width, initial-scale=1" />
<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 type="module">
import {
getOppositeOrientation,
makeCleanup,
} from "./resources/orientation-utils.js";
promise_test(async (t) => {
t.add_cleanup(makeCleanup());
await test_driver.bless("request full screen");
await document.documentElement.requestFullscreen();
const result = await Promise.race([
new Promise((resolve) => {
screen.orientation.addEventListener("change", resolve);
}),
screen.orientation.lock(getOppositeOrientation())
]);
assert_true(result instanceof Event, "Expected an instance of Event");
}, "The 'change' event must fire before the [[orientationPendingPromise]] is resolved.");
</script>