Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 1 | import copyreg |
| 2 | import unittest |
| 3 | |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 4 | from test.pickletester import ExtensionSaver |
| 5 | |
| 6 | class C: |
| 7 | pass |
| 8 | |
| 9 | |
| 10 | class WithoutSlots(object): |
| 11 | pass |
| 12 | |
| 13 | class WithWeakref(object): |
| 14 | __slots__ = ('__weakref__',) |
| 15 | |
| 16 | class WithPrivate(object): |
| 17 | __slots__ = ('__spam',) |
| 18 | |
| 19 | class WithSingleString(object): |
| 20 | __slots__ = 'spam' |
| 21 | |
| 22 | class WithInherited(WithSingleString): |
| 23 | __slots__ = ('eggs',) |
| 24 | |
| 25 | |
| 26 | class CopyRegTestCase(unittest.TestCase): |
| 27 | |
| 28 | def test_class(self): |
| 29 | self.assertRaises(TypeError, copyreg.pickle, |
| 30 | C, None, None) |
| 31 | |
| 32 | def test_noncallable_reduce(self): |
| 33 | self.assertRaises(TypeError, copyreg.pickle, |
| 34 | type(1), "not a callable") |
| 35 | |
| 36 | def test_noncallable_constructor(self): |
| 37 | self.assertRaises(TypeError, copyreg.pickle, |
| 38 | type(1), int, "not a callable") |
| 39 | |
| 40 | def test_bool(self): |
| 41 | import copy |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 42 | self.assertEqual(True, copy.copy(True)) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 43 | |
| 44 | def test_extension_registry(self): |
| 45 | mod, func, code = 'junk1 ', ' junk2', 0xabcd |
| 46 | e = ExtensionSaver(code) |
| 47 | try: |
| 48 | # Shouldn't be in registry now. |
| 49 | self.assertRaises(ValueError, copyreg.remove_extension, |
| 50 | mod, func, code) |
| 51 | copyreg.add_extension(mod, func, code) |
| 52 | # Should be in the registry. |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 53 | self.assertTrue(copyreg._extension_registry[mod, func] == code) |
| 54 | self.assertTrue(copyreg._inverted_registry[code] == (mod, func)) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 55 | # Shouldn't be in the cache. |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 56 | self.assertNotIn(code, copyreg._extension_cache) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 57 | # Redundant registration should be OK. |
| 58 | copyreg.add_extension(mod, func, code) # shouldn't blow up |
| 59 | # Conflicting code. |
| 60 | self.assertRaises(ValueError, copyreg.add_extension, |
| 61 | mod, func, code + 1) |
| 62 | self.assertRaises(ValueError, copyreg.remove_extension, |
| 63 | mod, func, code + 1) |
| 64 | # Conflicting module name. |
| 65 | self.assertRaises(ValueError, copyreg.add_extension, |
| 66 | mod[1:], func, code ) |
| 67 | self.assertRaises(ValueError, copyreg.remove_extension, |
| 68 | mod[1:], func, code ) |
| 69 | # Conflicting function name. |
| 70 | self.assertRaises(ValueError, copyreg.add_extension, |
| 71 | mod, func[1:], code) |
| 72 | self.assertRaises(ValueError, copyreg.remove_extension, |
| 73 | mod, func[1:], code) |
| 74 | # Can't remove one that isn't registered at all. |
| 75 | if code + 1 not in copyreg._inverted_registry: |
| 76 | self.assertRaises(ValueError, copyreg.remove_extension, |
| 77 | mod[1:], func[1:], code + 1) |
| 78 | |
| 79 | finally: |
| 80 | e.restore() |
| 81 | |
| 82 | # Shouldn't be there anymore. |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 83 | self.assertNotIn((mod, func), copyreg._extension_registry) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 84 | # The code *may* be in copyreg._extension_registry, though, if |
| 85 | # we happened to pick on a registered code. So don't check for |
| 86 | # that. |
| 87 | |
| 88 | # Check valid codes at the limits. |
| 89 | for code in 1, 0x7fffffff: |
| 90 | e = ExtensionSaver(code) |
| 91 | try: |
| 92 | copyreg.add_extension(mod, func, code) |
| 93 | copyreg.remove_extension(mod, func, code) |
| 94 | finally: |
| 95 | e.restore() |
| 96 | |
| 97 | # Ensure invalid codes blow up. |
| 98 | for code in -1, 0, 0x80000000: |
| 99 | self.assertRaises(ValueError, copyreg.add_extension, |
| 100 | mod, func, code) |
| 101 | |
| 102 | def test_slotnames(self): |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 103 | self.assertEqual(copyreg._slotnames(WithoutSlots), []) |
| 104 | self.assertEqual(copyreg._slotnames(WithWeakref), []) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 105 | expected = ['_WithPrivate__spam'] |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 106 | self.assertEqual(copyreg._slotnames(WithPrivate), expected) |
| 107 | self.assertEqual(copyreg._slotnames(WithSingleString), ['spam']) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 108 | expected = ['eggs', 'spam'] |
| 109 | expected.sort() |
| 110 | result = copyreg._slotnames(WithInherited) |
| 111 | result.sort() |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 112 | self.assertEqual(result, expected) |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 113 | |
| 114 | |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 115 | if __name__ == "__main__": |
Zachary Ware | 38c707e | 2015-04-13 15:00:43 -0500 | [diff] [blame] | 116 | unittest.main() |