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<head>
<title>Rotate the device frame around its x axis</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="mailto:zhiqiang.zhang@intel.com"> <!-- 2013-10-12 -->
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<body>
<p>Rotate the device frame around its x axis to run the test.</p>
<div id="log"></div>
<script>
var beta = 180;
var run = false;
window.addEventListener("deviceorientation", function(e) {
if (!run) {
run = true;
beta = e.beta;
}
}, false);
test(function() {
assert_true(beta > -180 && beta < 180);
}, "Beta is between -180 and 180");
test(function() {
assert_false(beta > -2 && beta < 2);
}, "Beta is not around zero (between -2 and 2)");
</script>
</body>
</html>