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9510e4a9f8
Renamed copy_reg to copyreg in the standard library, to avoid spurious warnings and ease later merging to py3k branch. Public documentation remains intact.
121 lines
4.1 KiB
Python
121 lines
4.1 KiB
Python
import copyreg
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import unittest
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from test import test_support
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from test.pickletester import ExtensionSaver
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class C:
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pass
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class WithoutSlots(object):
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pass
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class WithWeakref(object):
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__slots__ = ('__weakref__',)
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class WithPrivate(object):
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__slots__ = ('__spam',)
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class WithSingleString(object):
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__slots__ = 'spam'
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class WithInherited(WithSingleString):
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__slots__ = ('eggs',)
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class CopyRegTestCase(unittest.TestCase):
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def test_class(self):
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self.assertRaises(TypeError, copyreg.pickle,
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C, None, None)
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def test_noncallable_reduce(self):
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self.assertRaises(TypeError, copyreg.pickle,
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type(1), "not a callable")
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def test_noncallable_constructor(self):
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self.assertRaises(TypeError, copyreg.pickle,
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type(1), int, "not a callable")
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def test_bool(self):
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import copy
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self.assertEquals(True, copy.copy(True))
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def test_extension_registry(self):
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mod, func, code = 'junk1 ', ' junk2', 0xabcd
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e = ExtensionSaver(code)
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try:
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# Shouldn't be in registry now.
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self.assertRaises(ValueError, copyreg.remove_extension,
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mod, func, code)
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copyreg.add_extension(mod, func, code)
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# Should be in the registry.
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self.assert_(copyreg._extension_registry[mod, func] == code)
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self.assert_(copyreg._inverted_registry[code] == (mod, func))
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# Shouldn't be in the cache.
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self.assert_(code not in copyreg._extension_cache)
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# Redundant registration should be OK.
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copyreg.add_extension(mod, func, code) # shouldn't blow up
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# Conflicting code.
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self.assertRaises(ValueError, copyreg.add_extension,
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mod, func, code + 1)
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self.assertRaises(ValueError, copyreg.remove_extension,
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mod, func, code + 1)
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# Conflicting module name.
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self.assertRaises(ValueError, copyreg.add_extension,
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mod[1:], func, code )
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self.assertRaises(ValueError, copyreg.remove_extension,
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mod[1:], func, code )
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# Conflicting function name.
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self.assertRaises(ValueError, copyreg.add_extension,
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mod, func[1:], code)
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self.assertRaises(ValueError, copyreg.remove_extension,
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mod, func[1:], code)
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# Can't remove one that isn't registered at all.
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if code + 1 not in copyreg._inverted_registry:
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self.assertRaises(ValueError, copyreg.remove_extension,
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mod[1:], func[1:], code + 1)
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finally:
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e.restore()
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# Shouldn't be there anymore.
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self.assert_((mod, func) not in copyreg._extension_registry)
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# The code *may* be in copyreg._extension_registry, though, if
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# we happened to pick on a registered code. So don't check for
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# that.
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# Check valid codes at the limits.
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for code in 1, 0x7fffffff:
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e = ExtensionSaver(code)
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try:
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copyreg.add_extension(mod, func, code)
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copyreg.remove_extension(mod, func, code)
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finally:
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e.restore()
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# Ensure invalid codes blow up.
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for code in -1, 0, 0x80000000L:
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self.assertRaises(ValueError, copyreg.add_extension,
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mod, func, code)
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def test_slotnames(self):
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self.assertEquals(copyreg._slotnames(WithoutSlots), [])
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self.assertEquals(copyreg._slotnames(WithWeakref), [])
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expected = ['_WithPrivate__spam']
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self.assertEquals(copyreg._slotnames(WithPrivate), expected)
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self.assertEquals(copyreg._slotnames(WithSingleString), ['spam'])
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expected = ['eggs', 'spam']
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expected.sort()
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result = copyreg._slotnames(WithInherited)
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result.sort()
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self.assertEquals(result, expected)
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def test_main():
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test_support.run_unittest(CopyRegTestCase)
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if __name__ == "__main__":
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test_main()
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