import json
import uuid

from tht.session.models import local_principal


def test_local_identity_uuid_is_stable_across_restarts(tmp_path):
    first = local_principal(tmp_path)
    restarted = local_principal(tmp_path)

    assert first == restarted
    assert first.issuer == "local"
    assert uuid.UUID(first.subject, version=4).version == 4
    assert json.loads((tmp_path / "identity.json").read_text()) == {
        "issuer": "local",
        "subject": first.subject,
    }