chromium/third_party/blink/web_tests/http/tests/origin_trials/webexposed/device-attributes-origin-trial-interfaces.html

<!DOCTYPE html>
<meta charset="utf-8">
<!-- Generate token with the command:
generate_token.py http://127.0.0.1:8000 DeviceAttributes --expire-timestamp=2000000000
-->
<meta http-equiv="origin-trial" content="A7keXbY/X3Z58ZDJLORovQtTQDWDpzTG7XW47QSFjBUf5DXQslvOP8FOMDgqdQTniJKeNeT2IpHO6pBxwl6nMQsAAABYeyJvcmlnaW4iOiAiaHR0cDovLzEyNy4wLjAuMTo4MDAwIiwgImZlYXR1cmUiOiAiRGV2aWNlQXR0cmlidXRlcyIsICJleHBpcnkiOiAyMDAwMDAwMDAwfQ==" />
<title>Device Attributes API - interfaces exposed by origin trial</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/origin-trials-helper.js"></script>
<script>
'use strict'
test(t => {
  assert_true('managed' in navigator, 'managed object exists on navigator scope');
  assert_not_equals(navigator.managed, undefined, 'managed object can be accessed on navigator');
  assert_true('getAnnotatedAssetId' in navigator.managed, 'getAnnotatedAssetId method exists on managed scope');
  assert_true('getAnnotatedLocation' in navigator.managed, 'getAnnotatedLocation method exists on managed scope');
  assert_true('getDirectoryId' in navigator.managed, 'getDirectoryId method exists on managed scope');
  assert_true('getHostname' in navigator.managed, 'getHostname method exists on managed scope');
  assert_true('getSerialNumber' in navigator.managed, 'getSerialNumber method exists on managed scope');
}, 'Device Attributes API entry point in Origin-Trial enabled document.');
</script>