1.Notification received - when the app is running in foreground.
2.Notification received - when the app is running in background.
3.Notification received - when you are in some other screen.
4.Notification received - when app is killed.
5.Notification received - when app is launched.
6.Check the notification received time.
7.Check the notification received in different time zones.
8.Check when notification received then sound,vibration,Blink.
9.Title of the notification.
10.Check the notification count increase whenever the new notification is received.
11.Check the redirection of the notification.
12.Check the notification status is updated time to time (i.e for eg:- consider the example of taxi booking when driving reaching then update of ETA and arriving status, start and end ride status).
13.Language of notification.
14.When notification received and user didn’t click on bell icon of notification than the count should get updated on the notification icon of the application.
15.When the user read the notification then count should get updated.
16.If the app contain the feature of in-app chat then check the notification is received when the user is receiving any message.
Note :- There can be more than these depends on the conditions and requirement from clients.