from datetime import UTC
from uuid import UUID

from mka.models.base import DomainModel


def test_domain_model_creates_uuid_and_utc_timestamps() -> None:
    model = DomainModel()

    assert isinstance(model.id, UUID)
    assert model.created_at.tzinfo is UTC
    assert model.updated_at.tzinfo is UTC


def test_domain_model_json_roundtrip() -> None:
    original = DomainModel()

    serialized = original.model_dump_json()
    restored = DomainModel.model_validate_json(serialized)

    assert restored == original