from lyra_worker.library import list_audio_files


def test_lists_sorted_audio_basenames_only(tmp_path):
    (tmp_path / "02 Two.flac").write_bytes(b"")
    (tmp_path / "01 One.flac").write_bytes(b"")
    (tmp_path / "10 Ten.mp3").write_bytes(b"")
    (tmp_path / "cover.jpg").write_bytes(b"")       # non-audio excluded
    (tmp_path / "notes.txt").write_bytes(b"")       # non-audio excluded
    (tmp_path / "Disc 1").mkdir()                    # a subdir is not a file

    assert list_audio_files(str(tmp_path)) == ["01 One.flac", "02 Two.flac", "10 Ten.mp3"]


def test_missing_dir_returns_empty():
    assert list_audio_files("/no/such/album/dir") == []


def test_empty_dir_returns_empty(tmp_path):
    assert list_audio_files(str(tmp_path)) == []