public void TestNotificationCounter() { ToolbarNotificationButton notificationButton = null; AddStep("retrieve notification button", () => notificationButton = toolbar.ChildrenOfType <ToolbarNotificationButton>().Single()); setNotifications(1); setNotifications(2); setNotifications(3); setNotifications(0); setNotifications(144); void setNotifications(int count) => AddStep($"set notification count to {count}", () => notificationButton.NotificationCount.Value = count); }