def METHOD_NAME(self):
    njf = restructure_archiving_policy.migrate(OLD_JOURNAL_FORMAT)
    assert isinstance(njf, models.Journal)
    ap = njf.data.get("bibjson").get("archiving_policy")
    assert ap.get("known") == ["LOCKSS", "CLOCKSS"]
    assert ap.get("other") == "A safe place"
    assert ap.get("nat_lib") == "Trinity"