Python copy_reg._inverted_registry方法代码示例

# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _inverted_registry [as 别名]
def test_extension_registry(self):
        #test getattr of the attribute and how the value of this attribute affects other method
        copy_reg.add_extension('a','b',123)
        key = copy_reg._inverted_registry[123]
        result = copy_reg._extension_registry
        code = result[key]
        self.assertTrue(code == 123,
                "The _extension_registry attribute did not return the correct value")
                
        copy_reg.add_extension('1','2',999)
        result = copy_reg._extension_registry
        code = result[('1','2')]
        self.assertTrue(code == 999,
                "The _extension_registry attribute did not return the correct value")
        
        #general test, try to set the attribute then to get it
        myvalue = 3885
        copy_reg._extension_registry["key"] = myvalue
        result = copy_reg._extension_registry["key"]
        self.assertTrue(result == myvalue,
            "The set or the get of the attribute failed") 

# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _inverted_registry [as 别名]
def __init__(self, code):
        self.code = code
        if code in copy_reg._inverted_registry:
            self.pair = copy_reg._inverted_registry[code]
            copy_reg.remove_extension(self.pair[0], self.pair[1], code)
        else:
            self.pair = None

    # Restore previous registration for code. 

# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _inverted_registry [as 别名]
def restore(self):
        code = self.code
        curpair = copy_reg._inverted_registry.get(code)
        if curpair is not None:
            copy_reg.remove_extension(curpair[0], curpair[1], code)
        pair = self.pair
        if pair is not None:
            copy_reg.add_extension(pair[0], pair[1], code) 

# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _inverted_registry [as 别名]
def test_inverted_registry(self):
        copy_reg.add_extension('obj1','obj2',64)
        #get
        result = copy_reg._inverted_registry[64]
        self.assertTrue(result == ('obj1','obj2'),
                "The _inverted_registry attribute did not return the correct value")
        
        #set
        value = ('newmodule','newobj')
        copy_reg._inverted_registry[10001] = value
        result = copy_reg._inverted_registry[10001]
        self.assertTrue(result == value,
                "The setattr of _inverted_registry attribute failed") 

# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _inverted_registry [as 别名]
def test_extension_registry(self):
        mod, func, code = 'junk1 ', ' junk2', 0xabcd
        e = ExtensionSaver(code)
        try:
            # Shouldn't be in registry now.
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod, func, code)
            copy_reg.add_extension(mod, func, code)
            # Should be in the registry.
            self.assertTrue(copy_reg._extension_registry[mod, func] == code)
            self.assertTrue(copy_reg._inverted_registry[code] == (mod, func))
            # Shouldn't be in the cache.
            self.assertNotIn(code, copy_reg._extension_cache)
            # Redundant registration should be OK.
            copy_reg.add_extension(mod, func, code)  # shouldn't blow up
            # Conflicting code.
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod, func, code + 1)
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod, func, code + 1)
            # Conflicting module name.
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod[1:], func, code )
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod[1:], func, code )
            # Conflicting function name.
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod, func[1:], code)
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod, func[1:], code)
            # Can't remove one that isn't registered at all.
            if code + 1 not in copy_reg._inverted_registry:
                self.assertRaises(ValueError, copy_reg.remove_extension,
                                  mod[1:], func[1:], code + 1)

        finally:
            e.restore()

        # Shouldn't be there anymore.
        self.assertNotIn((mod, func), copy_reg._extension_registry)
        # The code *may* be in copy_reg._extension_registry, though, if
        # we happened to pick on a registered code.  So don't check for
        # that.

        # Check valid codes at the limits.
        for code in 1, 0x7fffffff:
            e = ExtensionSaver(code)
            try:
                copy_reg.add_extension(mod, func, code)
                copy_reg.remove_extension(mod, func, code)
            finally:
                e.restore()

        # Ensure invalid codes blow up.
        for code in -1, 0, 0x80000000L:
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod, func, code) 

# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _inverted_registry [as 别名]
def test_extension_registry(self):
        mod, func, code = 'junk1 ', ' junk2', 0xabcd
        e = ExtensionSaver(code)
        try:
            # Shouldn't be in registry now.
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod, func, code)
            copy_reg.add_extension(mod, func, code)
            # Should be in the registry.
            self.assert_(copy_reg._extension_registry[mod, func] == code)
            self.assert_(copy_reg._inverted_registry[code] == (mod, func))
            # Shouldn't be in the cache.
            self.assert_(code not in copy_reg._extension_cache)
            # Redundant registration should be OK.
            copy_reg.add_extension(mod, func, code)  # shouldn't blow up
            # Conflicting code.
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod, func, code + 1)
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod, func, code + 1)
            # Conflicting module name.
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod[1:], func, code )
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod[1:], func, code )
            # Conflicting function name.
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod, func[1:], code)
            self.assertRaises(ValueError, copy_reg.remove_extension,
                              mod, func[1:], code)
            # Can't remove one that isn't registered at all.
            if code + 1 not in copy_reg._inverted_registry:
                self.assertRaises(ValueError, copy_reg.remove_extension,
                                  mod[1:], func[1:], code + 1)

        finally:
            e.restore()

        # Shouldn't be there anymore.
        self.assert_((mod, func) not in copy_reg._extension_registry)
        # The code *may* be in copy_reg._extension_registry, though, if
        # we happened to pick on a registered code.  So don't check for
        # that.

        # Check valid codes at the limits.
        for code in 1, 0x7fffffff:
            e = ExtensionSaver(code)
            try:
                copy_reg.add_extension(mod, func, code)
                copy_reg.remove_extension(mod, func, code)
            finally:
                e.restore()

        # Ensure invalid codes blow up.
        for code in -1, 0, 0x80000000L:
            self.assertRaises(ValueError, copy_reg.add_extension,
                              mod, func, code)