def METHOD_NAME(data_fixture):
    user = data_fixture.create_user()
    workspace = data_fixture.create_workspace(user=user)
    notification = data_fixture.create_workspace_notification(
        recipients=[user], workspace=workspace
    )
    qs = NotificationRecipient.objects.filter(recipient=user, notification=notification)
    assert qs.get().read is False
    NotificationHandler.mark_notification_as_read(user, notification)
    assert qs.get().read is True