Coverage for tests/test_thread_utils.py: 24%
37 statements
« prev ^ index » next coverage.py v7.4.1, created at 2024-02-13 10:57 +0000
« prev ^ index » next coverage.py v7.4.1, created at 2024-02-13 10:57 +0000
1# This file is part of daf_butler.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (http://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This software is dual licensed under the GNU General Public License and also
10# under a 3-clause BSD license. Recipients may choose which of these licenses
11# to use; please see the files gpl-3.0.txt and/or bsd_license.txt,
12# respectively. If you choose the GPL option then the following text applies
13# (but note that there is still no warranty even if you opt for BSD instead):
14#
15# This program is free software: you can redistribute it and/or modify
16# it under the terms of the GNU General Public License as published by
17# the Free Software Foundation, either version 3 of the License, or
18# (at your option) any later version.
19#
20# This program is distributed in the hope that it will be useful,
21# but WITHOUT ANY WARRANTY; without even the implied warranty of
22# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23# GNU General Public License for more details.
24#
25# You should have received a copy of the GNU General Public License
26# along with this program. If not, see <http://www.gnu.org/licenses/>.
28import unittest
30from lsst.daf.butler._utilities.locked_object import LockedObject
31from lsst.daf.butler._utilities.named_locks import NamedLocks
32from lsst.daf.butler._utilities.thread_safe_cache import ThreadSafeCache
35class ThreadSafeCacheTestCase(unittest.TestCase):
36 """Test ThreadSafeCache."""
38 def test_cache(self):
39 cache = ThreadSafeCache()
40 self.assertIsNone(cache.get("unknown"))
41 self.assertEqual(cache.set_or_get("key", "a"), "a")
42 self.assertEqual(cache.get("key"), "a")
43 self.assertEqual(cache.set_or_get("key", "b"), "a")
44 self.assertEqual(cache.get("key"), "a")
45 self.assertIsNone(cache.get("other"))
48class NamedLocksTestCase(unittest.TestCase):
49 """Test NamedLocks."""
51 def test_named_locks(self):
52 locks = NamedLocks()
53 lock1 = locks._get_lock("a")
54 lock2 = locks._get_lock("b")
55 lock3 = locks._get_lock("a")
57 self.assertIs(lock1, lock3)
58 self.assertIsNot(lock1, lock2)
60 self.assertFalse(lock1.locked())
61 self.assertFalse(lock2.locked())
62 with locks.lock("a"):
63 self.assertTrue(lock1.locked())
64 self.assertFalse(lock2.locked())
65 self.assertFalse(lock1.locked())
66 self.assertFalse(lock2.locked())
69class LockedObjectTestCase(unittest.TestCase):
70 """Test LockedObject."""
72 def test_named_locks(self):
73 data = object()
74 locked_obj = LockedObject(data)
75 self.assertFalse(locked_obj._lock.locked())
76 with locked_obj.access() as accessed:
77 self.assertTrue(locked_obj._lock.locked())
78 self.assertIs(data, accessed)
79 self.assertFalse(locked_obj._lock.locked())
82if __name__ == "__main__":
83 unittest.main()