from evanescere.services.asr import normalize_segments


def test_normalize_segments_uses_known_audio_bounds_when_timestamps_are_missing():
    assert normalize_segments(
        {"text": "你好", "segments": []}, fallback_start_sec=0, fallback_end_sec=15
    ) == [
        {
            "start_sec": 0,
            "end_sec": 15,
            "text": "你好",
            "speaker": None,
            "confidence": None,
            "metadata": {"text": "你好", "segments": []},
        }
    ]