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<!DOCTYPE html>
<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/orientation-event-helpers.js"></script>
<script>
'use strict';
sensor_test(async (t, sensorProvider) => {
const orientationData = generateOrientationData(1.1, 2.2, 3.3, false);
let setMockDataPromise = setMockOrientationData(sensorProvider, orientationData);
// Add an empty listener to make sure the event pump is running and the mock
// sensor is created and configured. If the pump and fake sensor weren't set
// up ahead of time, then the fact that we get an asynchronous event could be
// due to the asynchronous set up process.
window.addEventListener('deviceorientation', event => {});
await setMockDataPromise;
return new Promise((resolve, reject) => {
let result = reject;
window.addEventListener('deviceorientation', event => result());
result = resolve;
});
}, 'Tests that events are never fired synchronously from a call to window.addEventListener().');
</script>
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