Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_datetime.py @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 01e5d0771824
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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afdb53323065 Issue #7989: Added pure python implementation of the datetime module.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 62837
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1 import unittest
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2 import sys
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3 from test.support import import_fresh_module, run_unittest
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4
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5 TESTS = 'test.datetimetester'
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6
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parents: 62837
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7 # XXX: import_fresh_module() is supposed to leave sys.module cache untouched,
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8 # XXX: but it does not, so we have to save and restore it ourselves.
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9 save_sys_modules = sys.modules.copy()
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parents: 62837
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10 try:
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11 pure_tests = import_fresh_module(TESTS, fresh=['datetime', '_strptime'],
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12 blocked=['_datetime'])
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13 fast_tests = import_fresh_module(TESTS, fresh=['datetime',
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14 '_datetime', '_strptime'])
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15 finally:
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16 sys.modules.clear()
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17 sys.modules.update(save_sys_modules)
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parents: 62837
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18 test_modules = [pure_tests, fast_tests]
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19 test_suffixes = ["_Pure", "_Fast"]
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20 # XXX(gb) First run all the _Pure tests, then all the _Fast tests. You might
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21 # not believe this, but in spite of all the sys.modules trickery running a _Pure
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22 # test last will leave a mix of pure and native datetime stuff lying around.
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23 test_classes = []
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24
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25 for module, suffix in zip(test_modules, test_suffixes):
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26 for name, cls in module.__dict__.items():
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27 if not (isinstance(cls, type) and issubclass(cls, unittest.TestCase)):
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28 continue
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29 cls.__name__ = name + suffix
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30 @classmethod
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31 def setUpClass(cls_, module=module):
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32 cls_._save_sys_modules = sys.modules.copy()
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33 sys.modules[TESTS] = module
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34 sys.modules['datetime'] = module.datetime_module
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35 sys.modules['_strptime'] = module._strptime
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36 @classmethod
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37 def tearDownClass(cls_):
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38 sys.modules.clear()
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39 sys.modules.update(cls_._save_sys_modules)
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40 cls.setUpClass = setUpClass
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41 cls.tearDownClass = tearDownClass
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42 test_classes.append(cls)
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43
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44 def test_main():
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45 run_unittest(*test_classes)
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46
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47 if __name__ == "__main__":
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48 test_main()