"""Unit tests for MetadataExtractor."""

from pathlib import Path

from app.metadata.extractor import MetadataExtractor
from app.models.document import Language


def test_extract_sample_pdf(sample_pdf: Path) -> None:
    extractor = MetadataExtractor()
    meta = extractor.extract(sample_pdf, category_hint="research_paper")

    assert meta.filename == "sample.pdf"
    assert meta.pages == 2
    assert meta.language in (Language.km, Language.mixed, Language.en)
    assert meta.native_pdf is True
    assert meta.sha256 is not None
    assert len(meta.pages_meta) == 2