| 1 | import copy_reg |
| 2 | import unittest |
| 3 | |
| 4 | from test import test_support |
| 5 | from test.pickletester import ExtensionSaver |
| 6 | |
| 7 | class C: |
| 8 | pass |
| 9 | |
| 10 | |
| 11 | class CopyRegTestCase(unittest.TestCase): |
| 12 | |
| 13 | def test_class(self): |
| 14 | self.assertRaises(TypeError, copy_reg.pickle, |
| 15 | C, None, None) |
| 16 | |
| 17 | def test_noncallable_reduce(self): |
| 18 | self.assertRaises(TypeError, copy_reg.pickle, |
| 19 | type(1), "not a callable") |
| 20 | |
| 21 | def test_noncallable_constructor(self): |
| 22 | self.assertRaises(TypeError, copy_reg.pickle, |
| 23 | type(1), int, "not a callable") |
| 24 | |
| 25 | def test_bool(self): |
| 26 | import copy |
| 27 | self.assertEquals(True, copy.copy(True)) |
| 28 | |
| 29 | def test_extension_registry(self): |
| 30 | mod, func, code = 'junk1 ', ' junk2', 0xabcd |
| 31 | e = ExtensionSaver(code) |
| 32 | try: |
| 33 | # Shouldn't be in registry now. |
| 34 | self.assertRaises(ValueError, copy_reg.remove_extension, |
| 35 | mod, func, code) |
| 36 | copy_reg.add_extension(mod, func, code) |
| 37 | # Should be in the registry. |
| 38 | self.assert_(copy_reg._extension_registry[mod, func] == code) |
| 39 | self.assert_(copy_reg._inverted_registry[code] == (mod, func)) |
| 40 | # Shouldn't be in the cache. |
| 41 | self.assert_(code not in copy_reg._extension_cache) |
| 42 | # Redundant registration should be OK. |
| 43 | copy_reg.add_extension(mod, func, code) # shouldn't blow up |
| 44 | # Conflicting code. |
| 45 | self.assertRaises(ValueError, copy_reg.add_extension, |
| 46 | mod, func, code + 1) |
| 47 | self.assertRaises(ValueError, copy_reg.remove_extension, |
| 48 | mod, func, code + 1) |
| 49 | # Conflicting module name. |
| 50 | self.assertRaises(ValueError, copy_reg.add_extension, |
| 51 | mod[1:], func, code ) |
| 52 | self.assertRaises(ValueError, copy_reg.remove_extension, |
| 53 | mod[1:], func, code ) |
| 54 | # Conflicting function name. |
| 55 | self.assertRaises(ValueError, copy_reg.add_extension, |
| 56 | mod, func[1:], code) |
| 57 | self.assertRaises(ValueError, copy_reg.remove_extension, |
| 58 | mod, func[1:], code) |
| 59 | # Can't remove one that isn't registered at all. |
| 60 | if code + 1 not in copy_reg._inverted_registry: |
| 61 | self.assertRaises(ValueError, copy_reg.remove_extension, |
| 62 | mod[1:], func[1:], code + 1) |
| 63 | |
| 64 | finally: |
| 65 | e.restore() |
| 66 | |
| 67 | # Shouldn't be there anymore. |
| 68 | self.assert_((mod, func) not in copy_reg._extension_registry) |
| 69 | # The code *may* be in copy_reg._extension_registry, though, if |
| 70 | # we happened to pick on a registered code. So don't check for |
| 71 | # that. |
| 72 | |
| 73 | # Check valid codes at the limits. |
| 74 | for code in 1, 0x7fffffff: |
| 75 | e = ExtensionSaver(code) |
| 76 | try: |
| 77 | copy_reg.add_extension(mod, func, code) |
| 78 | copy_reg.remove_extension(mod, func, code) |
| 79 | finally: |
| 80 | e.restore() |
| 81 | |
| 82 | # Ensure invalid codes blow up. |
| 83 | for code in -1, 0, 0x80000000L: |
| 84 | self.assertRaises(ValueError, copy_reg.add_extension, |
| 85 | mod, func, code) |
| 86 | |
| 87 | def test_main(): |
| 88 | test_support.run_unittest(CopyRegTestCase) |
| 89 | |
| 90 | |
| 91 | if __name__ == "__main__": |
| 92 | test_main() |