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vllm/tests/test_ray_env_utils.py

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# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
"""Tests for vllm.v1.executor.ray_env_utils."""
import os
from unittest.mock import patch
from vllm.v1.executor.ray_env_utils import get_driver_env_vars
WORKER_VARS: set[str] = {
"CUDA_VISIBLE_DEVICES",
"LOCAL_RANK",
}
class TestDefaultPropagation:
"""All env vars are propagated unless explicitly excluded."""
@patch.dict(os.environ, {"NCCL_DEBUG": "INFO"}, clear=False)
def test_nccl_prefix(self):
assert get_driver_env_vars(WORKER_VARS)["NCCL_DEBUG"] == "INFO"
@patch.dict(os.environ, {"HF_TOKEN": "secret"}, clear=False)
def test_hf_token(self):
assert "HF_TOKEN" in get_driver_env_vars(WORKER_VARS)
@patch.dict(os.environ, {"LMCACHE_LOCAL_CPU": "True"}, clear=False)
def test_lmcache_prefix(self):
assert "LMCACHE_LOCAL_CPU" in get_driver_env_vars(WORKER_VARS)
@patch.dict(os.environ, {"PYTHONHASHSEED": "42"}, clear=False)
def test_pythonhashseed(self):
assert get_driver_env_vars(WORKER_VARS)["PYTHONHASHSEED"] == "42"
@patch.dict(os.environ, {"MYLIB_FOO": "bar"}, clear=False)
def test_arbitrary_var_propagated(self):
assert get_driver_env_vars(WORKER_VARS)["MYLIB_FOO"] == "bar"
class TestExclusion:
@patch.dict(os.environ, {"CUDA_VISIBLE_DEVICES": "0,1"}, clear=False)
def test_worker_specific_excluded(self):
assert "CUDA_VISIBLE_DEVICES" not in get_driver_env_vars(WORKER_VARS)
@patch.dict(os.environ, {"LMCACHE_LOCAL_CPU": "True"}, clear=False)
@patch(
"vllm.v1.executor.ray_env_utils.RAY_NON_CARRY_OVER_ENV_VARS",
{"LMCACHE_LOCAL_CPU"},
)
def test_non_carry_over_blacklist(self):
assert "LMCACHE_LOCAL_CPU" not in get_driver_env_vars(WORKER_VARS)