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function unregisterAllServiceWorker() {
return navigator.serviceWorker.getRegistrations().then(registrations => {
return Promise.all(registrations.map(r => r.unregister()));
});
}
async function getActiveServiceWorker(script) {
await unregisterAllServiceWorker();
const reg = await navigator.serviceWorker.register(script);
add_completion_callback(() => reg.unregister());
await navigator.serviceWorker.ready;
return reg;
}
async function closeAllNotifications() {
for (const n of await registration.getNotifications()) {
n.close();
}
}
async function trySettingPermission(perm) {
try {
await test_driver.set_permission({ name: "notifications" }, perm);
} catch {
// Not all implementations support this yet, but the permission may already be set to be able to continue
}
// Using Notification.permission instead of permissions.query() as
// some implementation without set_permission support overrides
// Notification.permission.
const permission = Notification.permission === "default" ? "prompt" : Notification.permission;
if (permission !== perm) {
throw new Error(`Should have the permission ${perm} to continue`);
}
}