from untitled import model, persistence


def test_save_load_roundtrip(tmp_path):
    original = model.Save(
        version=1,
        cat=model.Cat(
            "Fry",
            {
                "size": "tiny",
                "color": "tuxedo",
                "eyes": "blue",
                "personality": "judges you silently",
            },
        ),
    )
    persistence.save(original, tmp_path)
    loaded = persistence.load("Fry", tmp_path)
    assert loaded.cat.name == "Fry"
    assert loaded.cat.traits == {
        "size": "tiny",
        "color": "tuxedo",
        "eyes": "blue",
        "personality": "judges you silently",
    }
    assert loaded.version == 1