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# SPDX-License-Identifier: MIT OR Apache-2.0
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the MIT License. See the LICENSE file in the root of this
# repository for complete details.
import pickle
import pytest
from freezegun import freeze_time
from structlog._config import _CONFIG
from structlog._generic import BoundLogger
from structlog.testing import ReturnLogger
class TestLogger:
def log(self, msg):
return "log", msg
def gol(self, msg):
return "gol", msg
class TestGenericBoundLogger:
def test_caches(self):
"""
__getattr__() gets called only once per logger method.
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
)
assert "msg" not in b.__dict__
b.msg("foo")
assert "msg" in b.__dict__
@pytest.mark.parametrize("proto", range(3, pickle.HIGHEST_PROTOCOL + 1))
@freeze_time("2023-05-22 17:00")
def test_pickle(self, proto):
"""
Can be pickled and unpickled.
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
).bind(x=1)
assert b.info("hi") == pickle.loads(pickle.dumps(b, proto)).info("hi")
def test_deepcopy(self):
"""
__getattr__ returns None for '__deepcopy__'
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
)
assert b.__deepcopy__ is None
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