Mercurial > cpython-lru_cache-weakref
view Lib/test/test_userstring.py @ 87690:66c1c9f32567 default tip
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 | 55383912c225 |
| children |
line wrap: on
line source
#!/usr/bin/env python3 # UserString is a wrapper around the native builtin string type. # UserString instances should behave similar to builtin string objects. import string import unittest from test import support, string_tests from collections import UserString class UserStringTest( string_tests.CommonTest, string_tests.MixinStrUnicodeUserStringTest, unittest.TestCase ): type2test = UserString # Overwrite the three testing methods, because UserString # can't cope with arguments propagated to UserString # (and we don't test with subclasses) def checkequal(self, result, object, methodname, *args, **kwargs): result = self.fixtype(result) object = self.fixtype(object) # we don't fix the arguments, because UserString can't cope with it realresult = getattr(object, methodname)(*args, **kwargs) self.assertEqual( result, realresult ) def checkraises(self, exc, object, methodname, *args): object = self.fixtype(object) # we don't fix the arguments, because UserString can't cope with it self.assertRaises( exc, getattr(object, methodname), *args ) def checkcall(self, object, methodname, *args): object = self.fixtype(object) # we don't fix the arguments, because UserString can't cope with it getattr(object, methodname)(*args) if __name__ == "__main__": unittest.main()
