from unittest.mock import patch, MagicMock
from void_workers import model


def test_model_returns_singleton(monkeypatch):
    m = MagicMock()
    monkeypatch.setattr(model, "_whisper_model", None)
    with patch("void_workers.model.cuda_available", return_value=False):
        with patch("faster_whisper.WhisperModel", return_value=m):
            a = model.whisper_model()
            b = model.whisper_model()
            assert a is b


def test_transcribe_returns_joined_segments(monkeypatch):
    seg1 = MagicMock(text=" Hello world ")
    seg2 = MagicMock(text=" second line")
    fake_model = MagicMock()
    fake_model.transcribe.return_value = ([seg1, seg2], MagicMock())
    monkeypatch.setattr(model, "_whisper_model", fake_model)
    out = model.whisper_transcribe("/tmp/whatever.opus")
    assert "Hello world" in out
    assert "second line" in out