def METHOD_NAME(self):
    PingbackNotificationDismissed.objects.create(
        user=self.user, notification=self.notification
    )
    response = self.client.get(reverse("kolibri:core:pingbacknotification-list"))
    expected_output = (
        PingbackNotification.objects.count()
        - PingbackNotificationDismissed.objects.count()
    )
    self.assertEqual(len(response.data), expected_output)