| Class | TestNotificationsSentForBugExpiration | Ensure that question subscribers are notified about bug expiration. |
| Class | TestNotificationsLinkToFilters | Ensure link to bug subscription filters works from notifications. |
| Class | TestNotificationProcessingWithoutRecipients | Adding notificatons without any recipients does not cause any harm. |
| Class | TestNotificationsForDuplicates | Test who gets notified about actions on duplicate bugs. |
| Class | TestBug778847 | Regression tests for bug 778847. |
| Class | TestGetDeferredNotifications | Test the getDeferredNotifications method. |