from pathlib import Path


ROOT = Path(__file__).resolve().parents[2]


def test_ontology_migration_is_additive_and_versioned():
    source = (ROOT / "migrations/versions/20260722_110_data_research_ontology.py").read_text(encoding="utf-8")
    for table in (
        "ontologies",
        "ontology_versions",
        "ontology_domain_links",
        "ontology_change_sets",
        "ontology_publish_runs",
    ):
        assert f"public.{table}" in source
    assert 'down_revision = "20260722_105"' in source
    assert "active_version_uid" in source
    assert "content_hash" in source
    assert "UNIQUE (ontology_uid, version)" in source


def test_graph_document_has_governance_sections():
    from app.core.data_research.ontology.models import GraphDocument

    graph = GraphDocument.from_dict({})
    assert graph.to_dict() == {
        "classes": [],
        "properties": [],
        "relations": [],
        "constraints": [],
        "domain_links": [],
        "element_mappings": [],
    }