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chromium/third_party/blink/web_tests/wpt_internal/battery-status/no-gc-with-pending-promise.https.html 

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async () => {
  let batteryManagerPromise = navigator.getBattery();
  gc();
  await batteryManagerPromise;
}, "navigator.getBattery() should resolve even in the face of GC");
</script>