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vllm-omni/tests/e2e/online_serving/test_voxcpm2_tts_expansion.py
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2026-08-17 11:21:28 +08:00

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Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
"""
E2E Online expansion tests for VoxCPM2 (voice clone, PCM, concurrency).
Voice clone uses ``ref_audio`` only (no ``ref_text``). Reference clip is
vendored under tests/assets/qwen3_tts/clone_2.wav — see test_qwen3_tts_base.py.
"""
import os
import pytest
from tests.helpers.mark import hardware_test
from tests.helpers.media import load_test_audio_data_url
from tests.helpers.runtime import OmniServerParams
from tests.helpers.stage_config import get_deploy_config_path
pytestmark = [pytest.mark.slow, pytest.mark.tts]
os.environ["VLLM_WORKER_MULTIPROC_METHOD"] = "spawn"
MODEL = "openbmb/VoxCPM2"
DEFAULT_AUDIO_SPEECH_TIMEOUT_S = 300.0
_MIN_AUDIO_BYTES = 40_000
MAX_CONCURRENT = 4
REF_AUDIO_URL = load_test_audio_data_url("qwen3_tts/clone_2.wav")
def get_prompt(prompt_type="text"):
prompts = {
"text": "The weather is nice today, perfect for a walk in the park.",
}
return prompts.get(prompt_type, prompts["text"])
tts_server_params = [
pytest.param(
OmniServerParams(
model=MODEL,
stage_config_path=get_deploy_config_path("voxcpm2.yaml"),
server_args=["--trust-remote-code", "--disable-log-stats"],
),
id="voxcpm2",
)
]
@hardware_test(res={"cuda": "L4"}, num_cards=1)
@pytest.mark.parametrize("omni_server", tts_server_params, indirect=True)
def test_voice_clone_streaming_001(omni_server, openai_client) -> None:
"""
Test voice-clone text-to-audio via OpenAI API.
Deploy Setting: voxcpm2.yaml
Input Modal: text + ref_audio
Output Modal: audio
Input Setting: stream=True
Datasets: few requests (max_num_seqs=4)
"""
request_config = {
"model": omni_server.model,
"input": get_prompt(),
"stream": True,
"stream_format": "audio",
"timeout": DEFAULT_AUDIO_SPEECH_TIMEOUT_S,
"response_format": "wav",
"voice": "default",
"ref_audio": REF_AUDIO_URL,
"min_audio_bytes": _MIN_AUDIO_BYTES,
}
openai_client.send_audio_speech_request(request_config, request_num=MAX_CONCURRENT)
@hardware_test(res={"cuda": "L4"}, num_cards=1)
@pytest.mark.parametrize("omni_server", tts_server_params, indirect=True)
def test_response_format_001(omni_server, openai_client) -> None:
"""
Test voice-clone non-stream PCM output via OpenAI API.
Deploy Setting: voxcpm2.yaml
Input Modal: text + ref_audio
Output Modal: audio (pcm)
Input Setting: stream=False
Datasets: single request
"""
request_config = {
"model": omni_server.model,
"input": get_prompt(),
"response_format": "pcm",
"stream": False,
"timeout": DEFAULT_AUDIO_SPEECH_TIMEOUT_S,
"voice": "default",
"ref_audio": REF_AUDIO_URL,
"min_audio_bytes": _MIN_AUDIO_BYTES,
"min_hnr_db": -2.0,
}
openai_client.send_audio_speech_request(request_config)