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Test Info:

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
'use strict';
test(test => {
const event = document.createEvent('DeviceOrientationEvent');
const newEvent = new CustomEvent("deviceorientation", {
bubbles: false, cancelable: false,
alpha: 1.0,
beta: 2.0,
gama: 3.0,
absolute: false
});
assert_equals(typeof event, 'object');
assert_equals(Object.getPrototypeOf(event), DeviceOrientationEvent.prototype);
assert_true('type' in event);
assert_true('bubbles' in event);
assert_true('cancelable' in event);
assert_true('alpha' in event);
assert_true('beta' in event);
assert_true('gamma' in event);
assert_true('absolute' in event);
assert_equals(typeof event.type, 'string');
assert_equals(typeof event.bubbles, 'boolean');
assert_equals(typeof event.cancelable, 'boolean');
assert_equals(typeof event.alpha, 'object');
assert_equals(typeof event.beta, 'object');
assert_equals(typeof event.gamma, 'object');
assert_equals(typeof event.absolute, 'boolean');
assert_equals(newEvent.type, "deviceorientation");
assert_false(newEvent.bubbles);
assert_false(newEvent.cancelable);
}, 'Tests that document.createEvent() works with DeviceOrientationEvent.');
</script>