battery-promise.https.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /battery-status/battery-promise.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>Battery Test: navigator.getBattery() always return same battery promise</title>

<link rel="author" title="Intel" href="http://www.intel.com">

<link rel="help" href="https://www.w3.org/TR/battery-status/">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id="log"></div>

<script>

promise_test(function () {

  return navigator.getBattery().then(function (result) {

    assert_class_string(result, 'BatteryManager',

        'getBattery should return BatteryManager Object.');

});

}, 'navigator.getBattery() shall return BatteryManager as a promise');

test(function () {

  assert_equals(navigator.getBattery(), navigator.getBattery());

}, 'navigator.getBattery() shall always return the same promise');

</script>