tor-browser

The Tor Browser
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battery-promise.https.html (820B)

      1 <!DOCTYPE html>
      2 <meta charset="utf-8">
      3 <title>Battery Test: navigator.getBattery() always return same battery promise</title>
      4 <link rel="author" title="Intel" href="http://www.intel.com">
      5 <link rel="help" href="https://www.w3.org/TR/battery-status/">
      6 <script src="/resources/testharness.js"></script>
      7 <script src="/resources/testharnessreport.js"></script>
      8 <div id="log"></div>
      9 <script>
     10 promise_test(function () {
     11  return navigator.getBattery().then(function (result) {
     12    assert_class_string(result, 'BatteryManager',
     13        'getBattery should return BatteryManager Object.');
     14  });
     15 }, 'navigator.getBattery() shall return BatteryManager as a promise');
     16 
     17 test(function () {
     18  assert_equals(navigator.getBattery(), navigator.getBattery());
     19 }, 'navigator.getBattery() shall always return the same promise');
     20 </script>