<!DOCTYPE html> <html> <head> <title>The interval property must be expressed in milliseconds. It must be a constant, to simplify filtering of the data by the Web application</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"> <!-- 2013-10-14 --> </head> <body> <p>Move the device to run the test.</p> <div id="log"></div> <script> var t = async_test("The interval property must be different to zero and must be a constant"); var inter1 = 0; var inter2 = 0; var run = false; window.addEventListener("devicemotion", function(e) { if (!run) { run = true; t.step(function() { if (inter1 == 0) { inter2 = e.interval; } inter1 = e.interval; assert_not_equals(inter1, 0); assert_not_equals(inter1, inter2); }); t.done(); } }, false); </script> </body> </html>