def METHOD_NAME(db):
    instances = Catalog.objects.all()
    for instance in instances:
        new_uri_prefix = instance.uri_prefix + '-'
        new_key = instance.key + '-'
        new_instance = instance.copy(new_uri_prefix, new_key)
        assert new_instance.uri_prefix == new_uri_prefix
        assert new_instance.key == new_key
        assert list(new_instance.sites.values('id')) == list(new_instance.sites.values('id'))
        assert list(new_instance.groups.values('id')) == list(new_instance.groups.values('id'))
        assert new_instance.sections.count() == instance.sections.count()