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05e8be17fd
svn+ssh://pythondev@svn.python.org/python/trunk ........ r60990 | eric.smith | 2008-02-23 17:05:26 +0100 (Sat, 23 Feb 2008) | 1 line Removed duplicate Py_CHARMASK define. It's already defined in Python.h. ........ r60991 | andrew.kuchling | 2008-02-23 17:23:05 +0100 (Sat, 23 Feb 2008) | 4 lines #1330538: Improve comparison of xmlrpclib.DateTime and datetime instances. Remove automatic handling of datetime.date and datetime.time. This breaks backward compatibility, but python-dev discussion was strongly against this automatic conversion; see the bug for a link. ........ r60994 | andrew.kuchling | 2008-02-23 17:39:43 +0100 (Sat, 23 Feb 2008) | 1 line #835521: Add index entries for various pickle-protocol methods and attributes ........ r60995 | andrew.kuchling | 2008-02-23 18:10:46 +0100 (Sat, 23 Feb 2008) | 2 lines #1433694: minidom's .normalize() failed to set .nextSibling for last element. Fix by Malte Helmert ........ r61000 | christian.heimes | 2008-02-23 18:40:11 +0100 (Sat, 23 Feb 2008) | 1 line Patch #2167 from calvin: Remove unused imports ........ r61001 | christian.heimes | 2008-02-23 18:42:31 +0100 (Sat, 23 Feb 2008) | 1 line Patch #1957: syslogmodule: Release GIL when calling syslog(3) ........ r61002 | christian.heimes | 2008-02-23 18:52:07 +0100 (Sat, 23 Feb 2008) | 2 lines Issue #2051 and patch from Alexander Belopolsky: Permission for pyc and pyo files are inherited from the py file. ........
591 lines
17 KiB
Python
591 lines
17 KiB
Python
"""Unit tests for the copy module."""
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import copy
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import copy_reg
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import unittest
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from test import test_support
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class TestCopy(unittest.TestCase):
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# Attempt full line coverage of copy.py from top to bottom
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def test_exceptions(self):
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self.assert_(copy.Error is copy.error)
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self.assert_(issubclass(copy.Error, Exception))
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# The copy() method
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def test_copy_basic(self):
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x = 42
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y = copy.copy(x)
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self.assertEqual(x, y)
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def test_copy_copy(self):
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class C(object):
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def __init__(self, foo):
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self.foo = foo
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def __copy__(self):
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return C(self.foo)
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x = C(42)
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y = copy.copy(x)
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self.assertEqual(y.__class__, x.__class__)
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self.assertEqual(y.foo, x.foo)
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def test_copy_registry(self):
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class C(object):
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def __new__(cls, foo):
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obj = object.__new__(cls)
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obj.foo = foo
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return obj
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def pickle_C(obj):
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return (C, (obj.foo,))
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x = C(42)
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self.assertRaises(TypeError, copy.copy, x)
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copy_reg.pickle(C, pickle_C, C)
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y = copy.copy(x)
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def test_copy_reduce_ex(self):
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class C(object):
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def __reduce_ex__(self, proto):
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return ""
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def __reduce__(self):
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raise test_support.TestFailed("shouldn't call this")
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x = C()
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y = copy.copy(x)
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self.assert_(y is x)
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def test_copy_reduce(self):
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class C(object):
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def __reduce__(self):
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return ""
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x = C()
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y = copy.copy(x)
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self.assert_(y is x)
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def test_copy_cant(self):
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class C(object):
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def __getattribute__(self, name):
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if name.startswith("__reduce"):
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raise AttributeError(name)
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return object.__getattribute__(self, name)
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x = C()
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self.assertRaises(copy.Error, copy.copy, x)
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# Type-specific _copy_xxx() methods
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def test_copy_atomic(self):
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class Classic:
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pass
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class NewStyle(object):
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pass
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def f():
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pass
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tests = [None, 42, 2**100, 3.14, True, False, 1j,
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"hello", "hello\u1234", f.__code__,
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NewStyle, range(10), Classic, max]
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for x in tests:
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self.assert_(copy.copy(x) is x, repr(x))
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def test_copy_list(self):
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x = [1, 2, 3]
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self.assertEqual(copy.copy(x), x)
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def test_copy_tuple(self):
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x = (1, 2, 3)
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self.assertEqual(copy.copy(x), x)
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def test_copy_dict(self):
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x = {"foo": 1, "bar": 2}
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self.assertEqual(copy.copy(x), x)
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def test_copy_inst_vanilla(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __eq__(self, other):
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return self.foo == other.foo
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x = C(42)
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self.assertEqual(copy.copy(x), x)
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def test_copy_inst_copy(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __copy__(self):
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return C(self.foo)
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def __eq__(self, other):
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return self.foo == other.foo
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x = C(42)
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self.assertEqual(copy.copy(x), x)
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def test_copy_inst_getinitargs(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __getinitargs__(self):
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return (self.foo,)
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def __eq__(self, other):
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return self.foo == other.foo
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x = C(42)
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self.assertEqual(copy.copy(x), x)
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def test_copy_inst_getstate(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __getstate__(self):
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return {"foo": self.foo}
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def __eq__(self, other):
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return self.foo == other.foo
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x = C(42)
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self.assertEqual(copy.copy(x), x)
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def test_copy_inst_setstate(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __setstate__(self, state):
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self.foo = state["foo"]
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def __eq__(self, other):
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return self.foo == other.foo
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x = C(42)
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self.assertEqual(copy.copy(x), x)
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def test_copy_inst_getstate_setstate(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __getstate__(self):
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return self.foo
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def __setstate__(self, state):
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self.foo = state
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def __eq__(self, other):
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return self.foo == other.foo
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x = C(42)
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self.assertEqual(copy.copy(x), x)
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# The deepcopy() method
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def test_deepcopy_basic(self):
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x = 42
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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def test_deepcopy_memo(self):
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# Tests of reflexive objects are under type-specific sections below.
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# This tests only repetitions of objects.
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x = []
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x = [x, x]
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y is not x)
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self.assert_(y[0] is not x[0])
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self.assert_(y[0] is y[1])
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def test_deepcopy_issubclass(self):
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# XXX Note: there's no way to test the TypeError coming out of
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# issubclass() -- this can only happen when an extension
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# module defines a "type" that doesn't formally inherit from
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# type.
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class Meta(type):
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pass
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class C(metaclass=Meta):
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pass
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self.assertEqual(copy.deepcopy(C), C)
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def test_deepcopy_deepcopy(self):
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class C(object):
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def __init__(self, foo):
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self.foo = foo
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def __deepcopy__(self, memo=None):
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return C(self.foo)
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x = C(42)
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y = copy.deepcopy(x)
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self.assertEqual(y.__class__, x.__class__)
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self.assertEqual(y.foo, x.foo)
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def test_deepcopy_registry(self):
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class C(object):
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def __new__(cls, foo):
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obj = object.__new__(cls)
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obj.foo = foo
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return obj
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def pickle_C(obj):
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return (C, (obj.foo,))
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x = C(42)
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self.assertRaises(TypeError, copy.deepcopy, x)
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copy_reg.pickle(C, pickle_C, C)
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y = copy.deepcopy(x)
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def test_deepcopy_reduce_ex(self):
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class C(object):
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def __reduce_ex__(self, proto):
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return ""
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def __reduce__(self):
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raise test_support.TestFailed("shouldn't call this")
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x = C()
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y = copy.deepcopy(x)
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self.assert_(y is x)
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def test_deepcopy_reduce(self):
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class C(object):
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def __reduce__(self):
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return ""
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x = C()
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y = copy.deepcopy(x)
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self.assert_(y is x)
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def test_deepcopy_cant(self):
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class C(object):
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def __getattribute__(self, name):
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if name.startswith("__reduce"):
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raise AttributeError(name)
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return object.__getattribute__(self, name)
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x = C()
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self.assertRaises(copy.Error, copy.deepcopy, x)
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# Type-specific _deepcopy_xxx() methods
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def test_deepcopy_atomic(self):
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class Classic:
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pass
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class NewStyle(object):
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pass
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def f():
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pass
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tests = [None, 42, 2**100, 3.14, True, False, 1j,
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"hello", "hello\u1234", f.__code__,
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NewStyle, range(10), Classic, max]
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for x in tests:
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self.assert_(copy.deepcopy(x) is x, repr(x))
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def test_deepcopy_list(self):
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x = [[1, 2], 3]
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(x is not y)
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self.assert_(x[0] is not y[0])
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def test_deepcopy_reflexive_list(self):
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x = []
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x.append(x)
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y = copy.deepcopy(x)
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self.assertRaises(RuntimeError, cmp, y, x)
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self.assert_(y is not x)
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self.assert_(y[0] is y)
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self.assertEqual(len(y), 1)
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def test_deepcopy_tuple(self):
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x = ([1, 2], 3)
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(x is not y)
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self.assert_(x[0] is not y[0])
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def test_deepcopy_reflexive_tuple(self):
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x = ([],)
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x[0].append(x)
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y = copy.deepcopy(x)
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self.assertRaises(RuntimeError, cmp, y, x)
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self.assert_(y is not x)
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self.assert_(y[0] is not x[0])
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self.assert_(y[0][0] is y)
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def test_deepcopy_dict(self):
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x = {"foo": [1, 2], "bar": 3}
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(x is not y)
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self.assert_(x["foo"] is not y["foo"])
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def test_deepcopy_reflexive_dict(self):
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x = {}
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x['foo'] = x
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y = copy.deepcopy(x)
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self.assertRaises(TypeError, cmp, y, x)
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self.assert_(y is not x)
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self.assert_(y['foo'] is y)
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self.assertEqual(len(y), 1)
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def test_deepcopy_keepalive(self):
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memo = {}
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x = 42
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y = copy.deepcopy(x, memo)
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self.assert_(memo[id(x)] is x)
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def test_deepcopy_inst_vanilla(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __eq__(self, other):
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return self.foo == other.foo
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x = C([42])
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y.foo is not x.foo)
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def test_deepcopy_inst_deepcopy(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __deepcopy__(self, memo):
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return C(copy.deepcopy(self.foo, memo))
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def __eq__(self, other):
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return self.foo == other.foo
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x = C([42])
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y is not x)
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self.assert_(y.foo is not x.foo)
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def test_deepcopy_inst_getinitargs(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __getinitargs__(self):
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return (self.foo,)
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def __eq__(self, other):
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return self.foo == other.foo
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x = C([42])
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y is not x)
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self.assert_(y.foo is not x.foo)
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def test_deepcopy_inst_getstate(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __getstate__(self):
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return {"foo": self.foo}
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def __eq__(self, other):
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return self.foo == other.foo
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x = C([42])
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y is not x)
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self.assert_(y.foo is not x.foo)
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def test_deepcopy_inst_setstate(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __setstate__(self, state):
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self.foo = state["foo"]
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def __eq__(self, other):
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return self.foo == other.foo
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x = C([42])
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y is not x)
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self.assert_(y.foo is not x.foo)
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def test_deepcopy_inst_getstate_setstate(self):
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class C:
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def __init__(self, foo):
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self.foo = foo
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def __getstate__(self):
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return self.foo
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def __setstate__(self, state):
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self.foo = state
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def __eq__(self, other):
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return self.foo == other.foo
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x = C([42])
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y is not x)
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self.assert_(y.foo is not x.foo)
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def test_deepcopy_reflexive_inst(self):
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class C:
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pass
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x = C()
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x.foo = x
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y = copy.deepcopy(x)
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self.assert_(y is not x)
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self.assert_(y.foo is y)
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# _reconstruct()
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def test_reconstruct_string(self):
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class C(object):
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def __reduce__(self):
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return ""
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x = C()
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y = copy.copy(x)
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self.assert_(y is x)
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y = copy.deepcopy(x)
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self.assert_(y is x)
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def test_reconstruct_nostate(self):
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class C(object):
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def __reduce__(self):
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return (C, ())
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x = C()
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x.foo = 42
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y = copy.copy(x)
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self.assert_(y.__class__ is x.__class__)
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y = copy.deepcopy(x)
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self.assert_(y.__class__ is x.__class__)
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def test_reconstruct_state(self):
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class C(object):
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def __reduce__(self):
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return (C, (), self.__dict__)
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def __eq__(self, other):
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return self.__dict__ == other.__dict__
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x = C()
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x.foo = [42]
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y = copy.copy(x)
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self.assertEqual(y, x)
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y.foo is not x.foo)
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def test_reconstruct_state_setstate(self):
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class C(object):
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def __reduce__(self):
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return (C, (), self.__dict__)
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def __setstate__(self, state):
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self.__dict__.update(state)
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def __eq__(self, other):
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return self.__dict__ == other.__dict__
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x = C()
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x.foo = [42]
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y = copy.copy(x)
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self.assertEqual(y, x)
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y = copy.deepcopy(x)
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self.assertEqual(y, x)
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self.assert_(y.foo is not x.foo)
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def test_reconstruct_reflexive(self):
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class C(object):
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pass
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x = C()
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x.foo = x
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y = copy.deepcopy(x)
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self.assert_(y is not x)
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self.assert_(y.foo is y)
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# Additions for Python 2.3 and pickle protocol 2
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def test_reduce_4tuple(self):
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class C(list):
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def __reduce__(self):
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return (C, (), self.__dict__, iter(self))
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def __eq__(self, other):
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return (list(self) == list(other) and
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self.__dict__ == other.__dict__)
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x = C([[1, 2], 3])
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y = copy.copy(x)
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self.assertEqual(x, y)
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self.assert_(x is not y)
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self.assert_(x[0] is y[0])
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y = copy.deepcopy(x)
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self.assertEqual(x, y)
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self.assert_(x is not y)
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self.assert_(x[0] is not y[0])
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def test_reduce_5tuple(self):
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class C(dict):
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def __reduce__(self):
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return (C, (), self.__dict__, None, self.items())
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def __eq__(self, other):
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return (dict(self) == dict(other) and
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self.__dict__ == other.__dict__)
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x = C([("foo", [1, 2]), ("bar", 3)])
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y = copy.copy(x)
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self.assertEqual(x, y)
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self.assert_(x is not y)
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self.assert_(x["foo"] is y["foo"])
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y = copy.deepcopy(x)
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self.assertEqual(x, y)
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self.assert_(x is not y)
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self.assert_(x["foo"] is not y["foo"])
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def test_copy_slots(self):
|
|
class C(object):
|
|
__slots__ = ["foo"]
|
|
x = C()
|
|
x.foo = [42]
|
|
y = copy.copy(x)
|
|
self.assert_(x.foo is y.foo)
|
|
|
|
def test_deepcopy_slots(self):
|
|
class C(object):
|
|
__slots__ = ["foo"]
|
|
x = C()
|
|
x.foo = [42]
|
|
y = copy.deepcopy(x)
|
|
self.assertEqual(x.foo, y.foo)
|
|
self.assert_(x.foo is not y.foo)
|
|
|
|
def test_copy_list_subclass(self):
|
|
class C(list):
|
|
pass
|
|
x = C([[1, 2], 3])
|
|
x.foo = [4, 5]
|
|
y = copy.copy(x)
|
|
self.assertEqual(list(x), list(y))
|
|
self.assertEqual(x.foo, y.foo)
|
|
self.assert_(x[0] is y[0])
|
|
self.assert_(x.foo is y.foo)
|
|
|
|
def test_deepcopy_list_subclass(self):
|
|
class C(list):
|
|
pass
|
|
x = C([[1, 2], 3])
|
|
x.foo = [4, 5]
|
|
y = copy.deepcopy(x)
|
|
self.assertEqual(list(x), list(y))
|
|
self.assertEqual(x.foo, y.foo)
|
|
self.assert_(x[0] is not y[0])
|
|
self.assert_(x.foo is not y.foo)
|
|
|
|
def test_copy_tuple_subclass(self):
|
|
class C(tuple):
|
|
pass
|
|
x = C([1, 2, 3])
|
|
self.assertEqual(tuple(x), (1, 2, 3))
|
|
y = copy.copy(x)
|
|
self.assertEqual(tuple(y), (1, 2, 3))
|
|
|
|
def test_deepcopy_tuple_subclass(self):
|
|
class C(tuple):
|
|
pass
|
|
x = C([[1, 2], 3])
|
|
self.assertEqual(tuple(x), ([1, 2], 3))
|
|
y = copy.deepcopy(x)
|
|
self.assertEqual(tuple(y), ([1, 2], 3))
|
|
self.assert_(x is not y)
|
|
self.assert_(x[0] is not y[0])
|
|
|
|
def test_getstate_exc(self):
|
|
class EvilState(object):
|
|
def __getstate__(self):
|
|
raise ValueError("ain't got no stickin' state")
|
|
self.assertRaises(ValueError, copy.copy, EvilState())
|
|
|
|
def test_copy_function(self):
|
|
self.assertEqual(copy.copy(global_foo), global_foo)
|
|
def foo(x, y): return x+y
|
|
self.assertEqual(copy.copy(foo), foo)
|
|
bar = lambda: None
|
|
self.assertEqual(copy.copy(bar), bar)
|
|
|
|
def test_deepcopy_function(self):
|
|
self.assertEqual(copy.deepcopy(global_foo), global_foo)
|
|
def foo(x, y): return x+y
|
|
self.assertEqual(copy.deepcopy(foo), foo)
|
|
bar = lambda: None
|
|
self.assertEqual(copy.deepcopy(bar), bar)
|
|
|
|
def global_foo(x, y): return x+y
|
|
|
|
def test_main():
|
|
test_support.run_unittest(TestCopy)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|