permissions/revocation.https.html

<!DOCTYPE html>
<meta charset="utf-8" />
<title>Permissions API - Revocation Tests</title>
<link rel="help" href="https://www.w3.org/TR/permissions/" />
<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>

<body>
    <script>
        promise_test(async (t) => {
            await test_driver.set_permission(
                { name: "geolocation" },
                "granted"
            );
            const status = await navigator.permissions.query({
                name: "geolocation",
            });
            assert_equals(
                status.state,
                "granted",
                'Initial state is "granted"'
            );

            const p = new Promise((resolve) => {
                status.addEventListener("change", resolve, { once: true });
            });

            await test_driver.set_permission({ name: "geolocation" }, "prompt");
            await p;

            assert_equals(status.state, "prompt", 'Now in "prompt" state');
        }, 'Transition "granted" -> "prompt" fires a "change" event');

        promise_test(async (t) => {
            await test_driver.set_permission(
                { name: "geolocation" },
                "granted"
            );
            const status = await navigator.permissions.query({
                name: "geolocation",
            });
            assert_equals(
                status.state,
                "granted",
                'Initial state is "granted"'
            );

            const p = new Promise((resolve) => {
                status.addEventListener("change", resolve, { once: true });
            });

            await test_driver.set_permission({ name: "geolocation" }, "denied");
            await p;
            assert_equals(status.state, "denied", 'Now in "denied" state');
        }, 'Transition "granted" -> "denied" fires a "change" event');
    </script>
</body>