generic-sensor.https.html | Explore in Territory

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/speculation-rules/prerender/resources/utils.js"></script>
<script src="/speculation-rules/prerender/resources/deferred-promise-utils.js"></script>
<script>

const params = new URLSearchParams(location.search);

// The main test page (restriction-sensor-*-https.html) loads the initiator
// page, then the initiator page will prerender itself with the `prerendering`
// parameter.
const isPrerendering = params.has('prerendering');

if (!isPrerendering) {
  const rule_extras = {'target_hint': getTargetHint()};
  loadInitiatorPage(rule_extras);
} else {
  const sensorName = params.get('sensorName');
  const sensorType = window[sensorName];
  const sensor = new sensorType;
  sensor.start();

  const promise = new Promise((resolve) => {
    // Sensor TCs only test the async result for Sensor.start() regardless of
    // success/fail results, because sensors can vary depending on the device.
    sensor.onactivate = function () { resolve(); }
    sensor.onerror = function (e) { resolve(); }
  });

  const prerenderEventCollector = new PrerenderEventCollector();
  prerenderEventCollector.start(promise, sensorName + " test");
}

</script>

chromium/third_party/blink/web_tests/external/wpt/speculation-rules/prerender/resources/generic-sensor.https.html