Coverage for /usr/local/lib/python3.7/site-packages/hypothesis/utils/dynamicvariables.py : 6%

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1# This file is part of Hypothesis, which may be found at
2# https://github.com/HypothesisWorks/hypothesis/
3#
4# Most of this work is copyright (C) 2013-2020 David R. MacIver
5# (david@drmaciver.com), but it contains contributions by others. See
6# CONTRIBUTING.rst for a full list of people who may hold copyright, and
7# consult the git log if you need to determine who owns an individual
8# contribution.
9#
10# This Source Code Form is subject to the terms of the Mozilla Public License,
11# v. 2.0. If a copy of the MPL was not distributed with this file, You can
12# obtain one at https://mozilla.org/MPL/2.0/.
13#
14# END HEADER
16import threading
17from contextlib import contextmanager
20class DynamicVariable:
21 def __init__(self, default):
22 self.default = default
23 self.data = threading.local()
25 @property
26 def value(self):
27 return getattr(self.data, "value", self.default)
29 @value.setter
30 def value(self, value):
31 self.data.value = value
33 @contextmanager
34 def with_value(self, value):
35 old_value = self.value
36 try:
37 self.data.value = value
38 yield
39 finally:
40 self.data.value = old_value