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import importlib.util
import sys
import types
from pathlib import Path
import numpy as np
import pytest
ROOT = Path(__file__).resolve().parents[1]
CLI_PATH = ROOT / "src" / "voxcpm" / "cli.py"
V1_MODEL_PATH = ROOT / "models" / "openbmb__VoxCPM1.5"
V2_MODEL_PATH = ROOT / "models" / "VoxCPM2-1B-newaudiovae-6hz-nope-sft"
pkg = types.ModuleType("voxcpm")
pkg.__path__ = [str(ROOT / "src" / "voxcpm")]
sys.modules.setdefault("voxcpm", pkg)
core_stub = types.ModuleType("voxcpm.core")
class StubVoxCPM:
pass
core_stub.VoxCPM = StubVoxCPM
sys.modules["voxcpm.core"] = core_stub
spec = importlib.util.spec_from_file_location("voxcpm.cli", CLI_PATH)
cli = importlib.util.module_from_spec(spec)
sys.modules["voxcpm.cli"] = cli
assert spec.loader is not None
spec.loader.exec_module(cli)
class DummyTTSModel:
sample_rate = 16000
class DummyModel:
def __init__(self):
self.tts_model = DummyTTSModel()
self.calls = []
def generate(self, **kwargs):
self.calls.append(kwargs)
return np.zeros(160, dtype=np.float32)
def run_main(monkeypatch, argv):
monkeypatch.setattr(sys, "argv", ["voxcpm", *argv])
cli.main()
def test_parser_defaults_to_voxcpm2():
parser = cli._build_parser()
args = parser.parse_args(["design", "--text", "hello", "--output", "out.wav"])
assert args.hf_model_id == "openbmb/VoxCPM2"
assert args.device == "auto"
assert args.no_optimize is False
def test_load_model_respects_no_optimize_for_local_model(monkeypatch):
calls = {}
class FakeVoxCPM:
def __init__(self, **kwargs):
calls["kwargs"] = kwargs
self.tts_model = DummyTTSModel()
monkeypatch.setattr(cli, "VoxCPM", FakeVoxCPM)
args = cli._build_parser().parse_args(
[
"design",
"--text",
"hello",
"--output",
"out.wav",
"--model-path",
str(V2_MODEL_PATH),
"--no-optimize",
]
)
cli.load_model(args)
assert calls["kwargs"]["device"] == "auto"
assert calls["kwargs"]["optimize"] is False
def test_load_model_defaults_optimize_for_hf(monkeypatch):
calls = {}
class FakeVoxCPM:
@classmethod
def from_pretrained(cls, **kwargs):
calls["kwargs"] = kwargs
return DummyModel()
monkeypatch.setattr(cli, "VoxCPM", FakeVoxCPM)
args = cli._build_parser().parse_args(
[
"design",
"--text",
"hello",
"--output",
"out.wav",
]
)
cli.load_model(args)
assert calls["kwargs"]["device"] == "auto"
assert calls["kwargs"]["optimize"] is True
def test_load_model_respects_no_optimize_for_hf(monkeypatch):
calls = {}
class FakeVoxCPM:
@classmethod
def from_pretrained(cls, **kwargs):
calls["kwargs"] = kwargs
return DummyModel()
monkeypatch.setattr(cli, "VoxCPM", FakeVoxCPM)
args = cli._build_parser().parse_args(
[
"design",
"--text",
"hello",
"--output",
"out.wav",
"--no-optimize",
]
)
cli.load_model(args)
assert calls["kwargs"]["device"] == "auto"
assert calls["kwargs"]["optimize"] is False
def test_load_model_passes_explicit_device_to_hf(monkeypatch):
calls = {}
class FakeVoxCPM:
@classmethod
def from_pretrained(cls, **kwargs):
calls["kwargs"] = kwargs
return DummyModel()
monkeypatch.setattr(cli, "VoxCPM", FakeVoxCPM)
args = cli._build_parser().parse_args(
[
"design",
"--text",
"hello",
"--output",
"out.wav",
"--device",
"mps",
]
)
cli.load_model(args)
assert calls["kwargs"]["device"] == "mps"
def test_design_subcommand_applies_control(monkeypatch, tmp_path):
dummy_model = DummyModel()
monkeypatch.setattr(cli, "load_model", lambda args: dummy_model)
monkeypatch.setattr(cli.sf, "write", lambda *args, **kwargs: None)
run_main(
monkeypatch,
[
"design",
"--text",
"hello",
"--control",
"warm female voice",
"--output",
str(tmp_path / "out.wav"),
],
)
assert dummy_model.calls[0]["text"] == "(warm female voice)hello"
assert dummy_model.calls[0]["prompt_wav_path"] is None
assert dummy_model.calls[0]["reference_wav_path"] is None
def test_clone_subcommand_reads_prompt_file(monkeypatch, tmp_path):
dummy_model = DummyModel()
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
prompt_file = tmp_path / "prompt.txt"
prompt_file.write_text("prompt transcript\n", encoding="utf-8")
monkeypatch.setattr(cli, "load_model", lambda args: dummy_model)
monkeypatch.setattr(cli.sf, "write", lambda *args, **kwargs: None)
run_main(
monkeypatch,
[
"clone",
"--text",
"hello",
"--prompt-audio",
str(prompt_audio),
"--prompt-file",
str(prompt_file),
"--output",
str(tmp_path / "out.wav"),
],
)
assert dummy_model.calls[0]["prompt_wav_path"] == str(prompt_audio)
assert dummy_model.calls[0]["prompt_text"] == "prompt transcript"
def test_clone_rejects_reference_audio_for_v1_local_model(monkeypatch, tmp_path):
reference_audio = tmp_path / "ref.wav"
reference_audio.write_bytes(b"RIFF")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"clone",
"--text",
"hello",
"--reference-audio",
str(reference_audio),
"--model-path",
str(V1_MODEL_PATH),
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
def test_clone_rejects_reference_audio_for_v1_hf_model_id(monkeypatch, tmp_path):
reference_audio = tmp_path / "ref.wav"
reference_audio.write_bytes(b"RIFF")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"clone",
"--text",
"hello",
"--reference-audio",
str(reference_audio),
"--hf-model-id",
"openbmb/VoxCPM1.5",
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
def test_legacy_root_args_still_work_and_warn(monkeypatch, tmp_path, capsys):
dummy_model = DummyModel()
monkeypatch.setattr(cli, "load_model", lambda args: dummy_model)
monkeypatch.setattr(cli.sf, "write", lambda *args, **kwargs: None)
run_main(
monkeypatch,
[
"--text",
"hello",
"--output",
str(tmp_path / "out.wav"),
],
)
captured = capsys.readouterr()
assert "deprecated" in captured.err
assert dummy_model.calls[0]["text"] == "hello"
def test_batch_subcommand_applies_control(monkeypatch, tmp_path):
dummy_model = DummyModel()
input_file = tmp_path / "texts.txt"
input_file.write_text("hello\nworld\n", encoding="utf-8")
monkeypatch.setattr(cli, "load_model", lambda args: dummy_model)
monkeypatch.setattr(cli.sf, "write", lambda *args, **kwargs: None)
run_main(
monkeypatch,
[
"batch",
"--input",
str(input_file),
"--output-dir",
str(tmp_path / "outs"),
"--control",
"calm narrator",
],
)
assert [call["text"] for call in dummy_model.calls] == [
"(calm narrator)hello",
"(calm narrator)world",
]
def test_legacy_clone_with_prompt_file_still_works(monkeypatch, tmp_path, capsys):
dummy_model = DummyModel()
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
prompt_file = tmp_path / "prompt.txt"
prompt_file.write_text("legacy transcript", encoding="utf-8")
monkeypatch.setattr(cli, "load_model", lambda args: dummy_model)
monkeypatch.setattr(cli.sf, "write", lambda *args, **kwargs: None)
run_main(
monkeypatch,
[
"--text",
"hello",
"--prompt-audio",
str(prompt_audio),
"--prompt-file",
str(prompt_file),
"--output",
str(tmp_path / "out.wav"),
],
)
captured = capsys.readouterr()
assert "deprecated" in captured.err
assert dummy_model.calls[0]["prompt_text"] == "legacy transcript"
def test_invalid_prompt_text_and_prompt_file_combination(monkeypatch, tmp_path, capsys):
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
prompt_file = tmp_path / "prompt.txt"
prompt_file.write_text("transcript", encoding="utf-8")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"clone",
"--text",
"hello",
"--prompt-audio",
str(prompt_audio),
"--prompt-text",
"inline transcript",
"--prompt-file",
str(prompt_file),
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
assert "Use either --prompt-text or --prompt-file" in capsys.readouterr().err
def test_missing_prompt_file_reports_parser_error(monkeypatch, tmp_path, capsys):
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"clone",
"--text",
"hello",
"--prompt-audio",
str(prompt_audio),
"--prompt-file",
str(tmp_path / "missing.txt"),
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
assert "prompt text file" in capsys.readouterr().err
def test_design_rejects_prompt_audio_args(monkeypatch, tmp_path, capsys):
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"design",
"--text",
"hello",
"--prompt-audio",
str(prompt_audio),
"--prompt-text",
"transcript",
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
assert "does not accept prompt/reference audio" in capsys.readouterr().err
def test_clone_rejects_prompt_audio_without_transcript(monkeypatch, tmp_path, capsys):
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"clone",
"--text",
"hello",
"--prompt-audio",
str(prompt_audio),
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
assert (
"--prompt-audio requires --prompt-text or --prompt-file"
in capsys.readouterr().err
)
def test_clone_rejects_transcript_without_prompt_audio(monkeypatch, tmp_path, capsys):
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"clone",
"--text",
"hello",
"--prompt-text",
"transcript",
"--output",
str(tmp_path / "out.wav"),
],
)
with pytest.raises(SystemExit):
cli.main()
assert (
"--prompt-text/--prompt-file requires --prompt-audio" in capsys.readouterr().err
)
def test_batch_rejects_control_with_prompt_transcript(monkeypatch, tmp_path, capsys):
input_file = tmp_path / "texts.txt"
input_file.write_text("hello\n", encoding="utf-8")
prompt_audio = tmp_path / "prompt.wav"
prompt_audio.write_bytes(b"RIFF")
monkeypatch.setattr(
sys,
"argv",
[
"voxcpm",
"batch",
"--input",
str(input_file),
"--output-dir",
str(tmp_path / "outs"),
"--control",
"calm narrator",
"--prompt-audio",
str(prompt_audio),
"--prompt-text",
"transcript",
],
)
with pytest.raises(SystemExit):
cli.main()
assert "--control cannot be used together" in capsys.readouterr().err
def test_detect_model_architecture_uses_local_configs():
parser = cli._build_parser()
v1_args = parser.parse_args(
[
"clone",
"--text",
"hello",
"--reference-audio",
"ref.wav",
"--model-path",
str(V1_MODEL_PATH),
"--output",
"out.wav",
]
)
v2_args = parser.parse_args(
[
"clone",
"--text",
"hello",
"--reference-audio",
"ref.wav",
"--model-path",
str(V2_MODEL_PATH),
"--output",
"out.wav",
]
)
assert cli.detect_model_architecture(v1_args) == "voxcpm"
assert cli.detect_model_architecture(v2_args) == "voxcpm2"
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