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chromium/third_party/blink/web_tests/external/wpt/push-api/permission.https.html 

<!doctype html>
<meta charset=utf-8>
<title>Test push is a powerful feature via Permissions API</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>

<script>
promise_test(async (test) => {
  const status = await navigator.permissions.query({ name: "push" });
  assert_true(status instanceof PermissionStatus);
  assert_equals(status.name, "push", `permission's name must be "push"`);
  assert_equals(status.state, "prompt", `permission's state must be "prompt" by default`);
}, `Query "push" powerful feature`);
</script>