from serato_doctor.scanner import scan_audio


def test_scan_audio_finds_supported_files(tmp_path):
    music = tmp_path / "music"
    nested = music / "House"
    nested.mkdir(parents=True)
    (nested / "First.MP3").write_bytes(b"synthetic audio")
    (nested / "Second.flac").write_bytes(b"fixture")
    (nested / "notes.txt").write_text("not audio", encoding="utf-8")

    tracks = scan_audio(music)

    assert {track.filename for track in tracks} == {"First.MP3", "Second.flac"}
    first = next(track for track in tracks if track.filename == "First.MP3")
    assert first.suffix == ".mp3"
    assert first.size == len(b"synthetic audio")