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48 lines
1.4 KiB
HTML
48 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>DeviceMotionEvent: A device in free-fall, with the screen horizontal and upmost</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel="author' title='Mosquito FP7">
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<link rel="reviewer author" title="Zhiqiang Zhang" href="mailto:zhiqiang.zhang@intel.com"> <!-- 2013-10-14 -->
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</head>
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<body>
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<p>Free fall the device to run the test, with the screen horizontal and upmost.</p>
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<div id="log"></div>
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<script>
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var t = async_test();
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var run = false;
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/*
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* A device in free-fall, with the screen horizontal and upmost,
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* has an accelerationIncludingGravity of zero and
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* the following value for acceleration:
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* {
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* x: 0,
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* y: 0,
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* z: -9.81
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* };
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*/
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window.addEventListener("devicemotion", function(e) {
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if (!run) {
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run = true;
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t.step(function() {
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var gvt = e.accelerationIncludingGravity;
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var acc = e.acceleration;
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assert_approx_equals(gvt.x, 0, 1);
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assert_approx_equals(gvt.y, 0, 1);
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assert_approx_equals(gvt.z, 0, 1);
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assert_approx_equals(acc.x, 0, 1);
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assert_approx_equals(acc.y, 0, 1);
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assert_approx_equals(acc.z, -9.81, 1.5);
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});
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t.done();
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}
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}, false);
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</script>
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</body>
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</html>
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