<html>
<head>
<script src="../resources/js-test-pre.js"></script>
</head>
<body>
<script>
description('Tests the cancelVibration after changing the value of pageVisibility to hidden.');

var visibilityState = document.visibilityState;

document.addEventListener('visibilitychange', function(e) {
    if (document.visibilityState == 'hidden')
        navigator.vibrate(0);
        shouldBeFalse('internals.isVibrating()');
        testRunner.setPageVisibility(visibilityState);
        finishJSTest();
    });

shouldBeFalse('internals.isVibrating()');
navigator.vibrate(10000);
if (window.testRunner) {
    setTimeout(function() {
        shouldBeTrue('internals.isVibrating()');
        testRunner.setPageVisibility('hidden');
        }, 0);
} else
    debug('This test can not be run without the TestRunner');
window.jsTestIsAsync = true;
</script>
<script src="../resources/js-test-post.js"></script>
</body>
</html>