from audio_gst import grouped_audio, shared_audio_cmd


def test_shared_audio_cmd_no_video_elements():
    cams = [("cam-01", 4), ("cam-02", 5)]
    cmd = shared_audio_cmd(cams, 16000, [8, 9])
    joined = " ".join(cmd)
    assert joined.count("alsasrc") == 2
    assert "device=hw:4,0" in joined
    assert "device=hw:5,0" in joined
    assert "h264enc" not in joined
    assert "v4l2src" not in joined


def test_grouped_audio_splits():
    cams = [(f"cam-{i:02d}", i + 1) for i in range(1, 21)]
    fds = list(range(20))
    groups = grouped_audio(cams, fds, 5)
    assert len(groups) == 4