xgboost/tests/python/test_config.py
2022-08-09 14:48:54 +08:00

66 lines
2.1 KiB
Python

import multiprocessing
from concurrent.futures import ThreadPoolExecutor
import pytest
import xgboost as xgb
@pytest.mark.parametrize("verbosity_level", [0, 1, 2, 3])
def test_global_config_verbosity(verbosity_level):
def get_current_verbosity():
return xgb.get_config()["verbosity"]
old_verbosity = get_current_verbosity()
with xgb.config_context(verbosity=verbosity_level):
new_verbosity = get_current_verbosity()
assert new_verbosity == verbosity_level
assert old_verbosity == get_current_verbosity()
@pytest.mark.parametrize("use_rmm", [False, True])
def test_global_config_use_rmm(use_rmm):
def get_current_use_rmm_flag():
return xgb.get_config()["use_rmm"]
old_use_rmm_flag = get_current_use_rmm_flag()
with xgb.config_context(use_rmm=use_rmm):
new_use_rmm_flag = get_current_use_rmm_flag()
assert new_use_rmm_flag == use_rmm
assert old_use_rmm_flag == get_current_use_rmm_flag()
def test_nested_config():
with xgb.config_context(verbosity=3):
assert xgb.get_config()["verbosity"] == 3
with xgb.config_context(verbosity=2):
assert xgb.get_config()["verbosity"] == 2
with xgb.config_context(verbosity=1):
assert xgb.get_config()["verbosity"] == 1
assert xgb.get_config()["verbosity"] == 2
assert xgb.get_config()["verbosity"] == 3
with xgb.config_context(verbosity=3):
assert xgb.get_config()["verbosity"] == 3
with xgb.config_context(verbosity=None):
assert xgb.get_config()["verbosity"] == 3 # None has no effect
verbosity = xgb.get_config()["verbosity"]
xgb.set_config(verbosity=2)
assert xgb.get_config()["verbosity"] == 2
with xgb.config_context(verbosity=3):
assert xgb.get_config()["verbosity"] == 3
xgb.set_config(verbosity=verbosity) # reset
def test_thread_safty():
n_threads = multiprocessing.cpu_count()
futures = []
with ThreadPoolExecutor(max_workers=n_threads) as executor:
for i in range(256):
f = executor.submit(test_nested_config)
futures.append(f)
for f in futures:
f.result()