Files
FastDeploy/tests/metrics/test_prometheus_multiprocess_setup.py
2025-12-23 10:05:45 +08:00

88 lines
3.2 KiB
Python

"""
# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
import os
import shutil
from unittest.mock import patch
from fastdeploy.metrics.prometheus_multiprocess_setup import (
setup_multiprocess_prometheus,
)
class TestSetupMultiprocessPrometheus:
def test_setup_with_existing_dir(self, tmp_path):
"""测试当目录已存在时清理并重新创建"""
# 确保环境变量不存在
if "PROMETHEUS_MULTIPROC_DIR" in os.environ:
del os.environ["PROMETHEUS_MULTIPROC_DIR"]
test_dir = "/tmp/prom_main_test-uuid"
# 使用 tmp_path 创建临时目录
os.makedirs(test_dir, exist_ok=True)
with (
patch("uuid.uuid4", return_value="test-uuid"),
patch("fastdeploy.utils.llm_logger.info") as mock_logger,
):
result = setup_multiprocess_prometheus()
assert result == test_dir
assert os.path.exists(test_dir)
mock_logger.assert_called_once_with("PROMETHEUS_MULTIPROC_DIR is set to be /tmp/prom_main_test-uuid")
def test_when_env_var_already_set(self):
"""测试当环境变量已设置时的情况"""
test_dir = "/tmp/existing_dir"
os.environ["PROMETHEUS_MULTIPROC_DIR"] = test_dir
with patch("fastdeploy.utils.llm_logger.warning") as mock_logger:
result = setup_multiprocess_prometheus()
assert result == test_dir
mock_logger.assert_called_once_with(
"Found PROMETHEUS_MULTIPROC_DIR:/tmp/existing_dir was set by user. "
"you will find inaccurate metrics. Unset the variable "
"will properly handle cleanup."
)
def test_cleanup_failure_handling(self):
"""测试清理目录失败时的处理"""
if "PROMETHEUS_MULTIPROC_DIR" in os.environ:
del os.environ["PROMETHEUS_MULTIPROC_DIR"]
with (
patch("os.path.exists", return_value=True),
patch("uuid.uuid4", return_value="test-uuid"),
patch("fastdeploy.utils.llm_logger.info") as mock_logger,
):
# 模拟 rmtree 但确保 ignore_errors=True 生效
original_rmtree = shutil.rmtree
def mock_rmtree(path, ignore_errors=False):
if ignore_errors:
return # 忽略错误
original_rmtree(path)
with patch("shutil.rmtree", side_effect=mock_rmtree):
result = setup_multiprocess_prometheus()
assert result == "/tmp/prom_main_test-uuid"
mock_logger.assert_called_once_with("PROMETHEUS_MULTIPROC_DIR is set to be /tmp/prom_main_test-uuid")