presentationrequest-getavailability.https.html

<!DOCTYPE html>
<html>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>

const httpsUrl = "https://example.com";

test(() => {
  const request = new PresentationRequest(httpsUrl);
  const promise = request.getAvailability();
  assert_true(promise instanceof Promise);
}, "Test that PresentationRequest.getAvailability() returns a Promise.");

test(() => {
  const request = new PresentationRequest(httpsUrl);
  const promise = request.getAvailability();
  assert_true(promise instanceof Promise);
  const samePromise = request.getAvailability();
  assert_true(samePromise instanceof Promise, "PresentationRequest.getAvailabilty() returns a Promise if called again on the same request.");
  assert_equals(promise, samePromise, "If the PresentationRequest object has an unsettled Promise, getAvailability returns that Promise.");
}, "Tests that PresentationRequest.getAvailability() returns the same unsettled Promise when called twice.");

</script>
</body>
</html>

chromium/third_party/blink/web_tests/wpt_internal/presentation/presentationrequest-getavailability.https.html