1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
# This file is part of Hypothesis, which may be found at
# https://github.com/HypothesisWorks/hypothesis/
#
# Copyright the Hypothesis Authors.
# Individual contributors are listed in AUTHORS.rst and the git log.
#
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at https://mozilla.org/MPL/2.0/.
from threading import Barrier, Thread
import pytest
from hypothesis import given, settings, strategies as st
from hypothesis.utils.threading import ThreadLocal
from tests.common.utils import skipif_emscripten
def test_threadlocal_setattr_and_getattr():
threadlocal = ThreadLocal(a=lambda: 1, b=lambda: 2)
assert threadlocal.a == 1
assert threadlocal.b == 2
# check that we didn't add attributes to the ThreadLocal instance itself
# instead of its threading.local() variable
assert set(threadlocal.__dict__) == {
"_ThreadLocal__initialized",
"_ThreadLocal__kwargs",
"_ThreadLocal__threadlocal",
}
threadlocal.a = 3
assert threadlocal.a == 3
assert threadlocal.b == 2
assert set(threadlocal.__dict__) == {
"_ThreadLocal__initialized",
"_ThreadLocal__kwargs",
"_ThreadLocal__threadlocal",
}
def test_nonexistent_getattr_raises():
threadlocal = ThreadLocal(a=lambda: 1)
with pytest.raises(AttributeError):
threadlocal.c
def test_nonexistent_setattr_raises():
threadlocal = ThreadLocal(a=lambda: 1)
with pytest.raises(AttributeError):
threadlocal.c = 2
def test_raises_if_not_passed_callable():
with pytest.raises(TypeError):
ThreadLocal(a=1)
@skipif_emscripten
@pytest.mark.skipif(
settings._current_profile == "crosshair", reason="crosshair is not thread-safe"
)
def test_run_given_concurrently():
# this is just a basic covering test. The more complicated and complete threading
# tests are in nocover/test_threading.py.
n_threads = 2
barrier = Barrier(n_threads)
@given(st.integers())
def test(n):
barrier.wait()
threads = [Thread(target=test) for _ in range(n_threads)]
for thread in threads:
thread.start()
for thread in threads:
thread.join(timeout=10)
# rely on our pytest-run-parallel job to test this, since this only happens because
# pytest instantiates a new class instance for each parametrization.
class TestNoDifferingExecutorsHealthCheck:
@given(st.integers())
@pytest.mark.parametrize("x", range(2))
def test_a(self, x, i):
pass
|
