fullscreen/api/element-request-fullscreen-without-user-activation.tentative.https.html

<!doctype html>
<meta charset=utf-8>
<title>Element#requestFullscreen() without user activation</title>
<link rel="help" href="https://github.com/explainers-by-googlers/html-fullscreen-without-a-gesture">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<div id="log"></div>
<script>
  promise_test(async (test) => {
    const div = document.querySelector("div");
    assert_false(navigator.userActivation.isActive, "userActivation.isActive");
    await promise_rejects_js(test, TypeError, div.requestFullscreen());
  }, `Element#requestFullscreen() rejects without user activation by default`);

  promise_test(async (test) => {
    test.add_cleanup(() => {
        if (document.fullscreenElement) return document.exitFullscreen();
    });
    const descriptor = { name: "fullscreen", allowWithoutGesture: true };
    await test_driver.set_permission(descriptor, "granted");
    const status = await navigator.permissions.query(descriptor);
    assert_equals((status).state, "granted", `state should be "granted", as set`);

    const div = document.querySelector("div");
    assert_false(navigator.userActivation.isActive, "userActivation.isActive");
    await div.requestFullscreen();
  }, `Element#requestFullscreen() resolves without user activation with permission`);
</script>