mirror of
https://git.datalinker.icu/vllm-project/vllm.git
synced 2025-12-10 07:24:56 +08:00
80 lines
2.1 KiB
Python
80 lines
2.1 KiB
Python
# SPDX-License-Identifier: Apache-2.0
|
|
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
|
|
|
|
import openai
|
|
import pytest
|
|
import pytest_asyncio
|
|
|
|
from vllm.config import ModelConfig
|
|
|
|
from ...utils import RemoteOpenAIServer
|
|
|
|
MODEL_NAME = "Qwen/Qwen2.5-1.5B-Instruct"
|
|
|
|
|
|
def get_vocab_size(model_name):
|
|
config = ModelConfig(
|
|
model=model_name,
|
|
seed=0,
|
|
dtype="bfloat16",
|
|
)
|
|
return config.get_vocab_size()
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def server():
|
|
args = [
|
|
"--dtype",
|
|
"bfloat16",
|
|
"--max-model-len",
|
|
"1024",
|
|
"--enforce-eager",
|
|
]
|
|
|
|
with RemoteOpenAIServer(MODEL_NAME, args) as remote_server:
|
|
yield remote_server
|
|
|
|
|
|
@pytest_asyncio.fixture
|
|
async def client(server):
|
|
async with server.get_async_client() as async_client:
|
|
yield async_client
|
|
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_chat_logit_bias_valid(client):
|
|
"""Test that valid logit_bias values are accepted in chat completions."""
|
|
vocab_size = get_vocab_size(MODEL_NAME)
|
|
valid_token_id = vocab_size - 1
|
|
|
|
completion = await client.chat.completions.create(
|
|
model=MODEL_NAME,
|
|
messages=[{"role": "user", "content": "Testing valid logit bias"}],
|
|
max_tokens=5,
|
|
logit_bias={str(valid_token_id): 1.0},
|
|
)
|
|
|
|
assert completion.choices[0].message.content is not None
|
|
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_chat_logit_bias_invalid(client):
|
|
"""Test that invalid logit_bias values are rejected in chat completions."""
|
|
vocab_size = get_vocab_size(MODEL_NAME)
|
|
invalid_token_id = vocab_size + 1
|
|
|
|
with pytest.raises(openai.BadRequestError) as excinfo:
|
|
await client.chat.completions.create(
|
|
model=MODEL_NAME,
|
|
messages=[{"role": "user", "content": "Testing invalid logit bias"}],
|
|
max_tokens=5,
|
|
logit_bias={str(invalid_token_id): 1.0},
|
|
)
|
|
|
|
error = excinfo.value
|
|
error_message = str(error)
|
|
|
|
assert error.status_code == 400
|
|
assert str(invalid_token_id) in error_message
|
|
assert str(vocab_size) in error_message
|