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<!DOCTYPE html>
<title>Implementations that are unable to provide acceleration data without the effect of gravity may instead supply the acceleration including the effect of gravity</title>
<meta name=viewport content="width=device-width, maximum-scale=1.0">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="author" title="Mosquito FP7">
<link rel="reviewer author" title="Zhiqiang Zhang" href=""> <!-- 2013-10-14 -->
<p>Move the device to run the test.</p>
<div id="log"></div>
var t1 = async_test("Implementation is unable to provide 'acceleration' property");
var t2 = async_test("Implementation is able to provide 'acceleration IncludingGravity' property");
var run = false;
window.ondevicemotion = function(e) {
if (!run) {
run = true;
t1.step(function() {
assert_equals(e.acceleration, null);
t2.step(function() {
var eaccgvt = e.accelerationIncludingGravity;
assert_equals(typeof eaccgvt, "object");
assert_not_equals(eaccgvt.x, 0);
assert_not_equals(eaccgvt.y, 0);
assert_not_equals(eaccgvt.z, 0);