1  import copyreg
       2  import unittest
       3  
       4  from test.pickletester import ExtensionSaver
       5  
       6  class ESC[4;38;5;81mC:
       7      pass
       8  
       9  
      10  class ESC[4;38;5;81mWithoutSlots(ESC[4;38;5;149mobject):
      11      pass
      12  
      13  class ESC[4;38;5;81mWithWeakref(ESC[4;38;5;149mobject):
      14      __slots__ = ('__weakref__',)
      15  
      16  class ESC[4;38;5;81mWithPrivate(ESC[4;38;5;149mobject):
      17      __slots__ = ('__spam',)
      18  
      19  class ESC[4;38;5;81m_WithLeadingUnderscoreAndPrivate(ESC[4;38;5;149mobject):
      20      __slots__ = ('__spam',)
      21  
      22  class ESC[4;38;5;81m___(ESC[4;38;5;149mobject):
      23      __slots__ = ('__spam',)
      24  
      25  class ESC[4;38;5;81mWithSingleString(ESC[4;38;5;149mobject):
      26      __slots__ = 'spam'
      27  
      28  class ESC[4;38;5;81mWithInherited(ESC[4;38;5;149mWithSingleString):
      29      __slots__ = ('eggs',)
      30  
      31  
      32  class ESC[4;38;5;81mCopyRegTestCase(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
      33  
      34      def test_class(self):
      35          self.assertRaises(TypeError, copyreg.pickle,
      36                            C, None, None)
      37  
      38      def test_noncallable_reduce(self):
      39          self.assertRaises(TypeError, copyreg.pickle,
      40                            type(1), "not a callable")
      41  
      42      def test_noncallable_constructor(self):
      43          self.assertRaises(TypeError, copyreg.pickle,
      44                            type(1), int, "not a callable")
      45  
      46      def test_bool(self):
      47          import copy
      48          self.assertEqual(True, copy.copy(True))
      49  
      50      def test_extension_registry(self):
      51          mod, func, code = 'junk1 ', ' junk2', 0xabcd
      52          e = ExtensionSaver(code)
      53          try:
      54              # Shouldn't be in registry now.
      55              self.assertRaises(ValueError, copyreg.remove_extension,
      56                                mod, func, code)
      57              copyreg.add_extension(mod, func, code)
      58              # Should be in the registry.
      59              self.assertTrue(copyreg._extension_registry[mod, func] == code)
      60              self.assertTrue(copyreg._inverted_registry[code] == (mod, func))
      61              # Shouldn't be in the cache.
      62              self.assertNotIn(code, copyreg._extension_cache)
      63              # Redundant registration should be OK.
      64              copyreg.add_extension(mod, func, code)  # shouldn't blow up
      65              # Conflicting code.
      66              self.assertRaises(ValueError, copyreg.add_extension,
      67                                mod, func, code + 1)
      68              self.assertRaises(ValueError, copyreg.remove_extension,
      69                                mod, func, code + 1)
      70              # Conflicting module name.
      71              self.assertRaises(ValueError, copyreg.add_extension,
      72                                mod[1:], func, code )
      73              self.assertRaises(ValueError, copyreg.remove_extension,
      74                                mod[1:], func, code )
      75              # Conflicting function name.
      76              self.assertRaises(ValueError, copyreg.add_extension,
      77                                mod, func[1:], code)
      78              self.assertRaises(ValueError, copyreg.remove_extension,
      79                                mod, func[1:], code)
      80              # Can't remove one that isn't registered at all.
      81              if code + 1 not in copyreg._inverted_registry:
      82                  self.assertRaises(ValueError, copyreg.remove_extension,
      83                                    mod[1:], func[1:], code + 1)
      84  
      85          finally:
      86              e.restore()
      87  
      88          # Shouldn't be there anymore.
      89          self.assertNotIn((mod, func), copyreg._extension_registry)
      90          # The code *may* be in copyreg._extension_registry, though, if
      91          # we happened to pick on a registered code.  So don't check for
      92          # that.
      93  
      94          # Check valid codes at the limits.
      95          for code in 1, 0x7fffffff:
      96              e = ExtensionSaver(code)
      97              try:
      98                  copyreg.add_extension(mod, func, code)
      99                  copyreg.remove_extension(mod, func, code)
     100              finally:
     101                  e.restore()
     102  
     103          # Ensure invalid codes blow up.
     104          for code in -1, 0, 0x80000000:
     105              self.assertRaises(ValueError, copyreg.add_extension,
     106                                mod, func, code)
     107  
     108      def test_slotnames(self):
     109          self.assertEqual(copyreg._slotnames(WithoutSlots), [])
     110          self.assertEqual(copyreg._slotnames(WithWeakref), [])
     111          expected = ['_WithPrivate__spam']
     112          self.assertEqual(copyreg._slotnames(WithPrivate), expected)
     113          expected = ['_WithLeadingUnderscoreAndPrivate__spam']
     114          self.assertEqual(copyreg._slotnames(_WithLeadingUnderscoreAndPrivate),
     115                           expected)
     116          self.assertEqual(copyreg._slotnames(___), ['__spam'])
     117          self.assertEqual(copyreg._slotnames(WithSingleString), ['spam'])
     118          expected = ['eggs', 'spam']
     119          expected.sort()
     120          result = copyreg._slotnames(WithInherited)
     121          result.sort()
     122          self.assertEqual(result, expected)
     123  
     124  
     125  if __name__ == "__main__":
     126      unittest.main()