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from __future__ import print_function
import unittest
import types
import sys
import re
is_pypy = '__pypy__' in sys.builtin_module_names
import wrapt
from compat import PY2, PY3, exec_
OBJECTS_CODE = """
class TargetBaseClass(object):
"documentation"
class Target(TargetBaseClass):
"documentation"
def target():
"documentation"
pass
"""
objects = types.ModuleType('objects')
exec_(OBJECTS_CODE, objects.__dict__, objects.__dict__)
class TestAttributeAccess(unittest.TestCase):
def test_init_not_called(self):
a = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
b = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
a.__wrapped__
except ValueError:
pass
try:
a + b
except ValueError:
pass
def test_attributes(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
self.assertEqual(function2.__wrapped__, function1)
def test_get_wrapped(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
self.assertEqual(function2.__wrapped__, function1)
function3 = wrapt.ObjectProxy(function2)
self.assertEqual(function3.__wrapped__, function1)
def test_set_wrapped(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
self.assertEqual(function2, function1)
self.assertEqual(function2.__wrapped__, function1)
self.assertEqual(function2.__name__, function1.__name__)
if PY3:
self.assertEqual(function2.__qualname__, function1.__qualname__)
function2.__wrapped__ = None
self.assertFalse(hasattr(function1, '__wrapped__'))
self.assertEqual(function2, None)
self.assertEqual(function2.__wrapped__, None)
self.assertFalse(hasattr(function2, '__name__'))
if PY3:
self.assertFalse(hasattr(function2, '__qualname__'))
def function3(*args, **kwargs):
return args, kwargs
function2.__wrapped__ = function3
self.assertEqual(function2, function3)
self.assertEqual(function2.__wrapped__, function3)
self.assertEqual(function2.__name__, function3.__name__)
if PY3:
self.assertEqual(function2.__qualname__, function3.__qualname__)
def test_delete_wrapped(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
def run(*args):
del function2.__wrapped__
self.assertRaises(TypeError, run, ())
def test_proxy_attribute(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
function2._self_variable = True
self.assertFalse(hasattr(function1, '_self_variable'))
self.assertTrue(hasattr(function2, '_self_variable'))
self.assertEqual(function2._self_variable, True)
del function2._self_variable
self.assertFalse(hasattr(function1, '_self_variable'))
self.assertFalse(hasattr(function2, '_self_variable'))
self.assertEqual(getattr(function2, '_self_variable', None), None)
def test_wrapped_attribute(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
function2.variable = True
self.assertTrue(hasattr(function1, 'variable'))
self.assertTrue(hasattr(function2, 'variable'))
self.assertEqual(function2.variable, True)
del function2.variable
self.assertFalse(hasattr(function1, 'variable'))
self.assertFalse(hasattr(function2, 'variable'))
self.assertEqual(getattr(function2, 'variable', None), None)
def test_attribute_lookup_modified(self):
class Object:
@property
def value(self):
return "value"
class WrappedObject(wrapt.ObjectProxy):
@property
def value(self):
return 2 * self.__wrapped__.value
WrappedObject(Object()).value == "valuevalue"
def test_attribute_lookup_value_exception(self):
class Object:
@property
def value(self):
return "value"
class WrappedObject(wrapt.ObjectProxy):
@property
def value(self):
raise ValueError("value-error")
try:
WrappedObject(Object()).value == "value"
except ValueError as e:
pass
else:
raise RuntimeError("should not fail here")
def test_attribute_lookup_attribute_exception(self):
class Object:
@property
def value(self):
return "value"
class WrappedObject(wrapt.ObjectProxy):
@property
def value(self):
raise AttributeError("attribute-error")
# Raising of an AttributeError in this case is a sort of odd situation
# because the exception results in it being determined there was no
# wrapper for the value attribute and so it returns the original value
# instead and robs the wrapper of the chance to return an alternate
# value.
WrappedObject(Object()).value == "value"
class TestNamingObjectProxy(unittest.TestCase):
def test_class_object_name(self):
# Test preservation of class __name__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__name__, target.__name__)
def test_class_object_qualname(self):
# Test preservation of class __qualname__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
try:
__qualname__ = target.__qualname__
except AttributeError:
pass
else:
self.assertEqual(wrapper.__qualname__, __qualname__)
def test_class_module_name(self):
# Test preservation of class __module__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__module__, target.__module__)
def test_class_doc_string(self):
# Test preservation of class __doc__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__doc__, target.__doc__)
def test_instance_module_name(self):
# Test preservation of instance __module__ attribute.
target = objects.Target()
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__module__, target.__module__)
def test_instance_doc_string(self):
# Test preservation of instance __doc__ attribute.
target = objects.Target()
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__doc__, target.__doc__)
def test_function_object_name(self):
# Test preservation of function __name__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__name__, target.__name__)
def test_function_object_qualname(self):
# Test preservation of function __qualname__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
try:
__qualname__ = target.__qualname__
except AttributeError:
pass
else:
self.assertEqual(wrapper.__qualname__, __qualname__)
def test_function_module_name(self):
# Test preservation of function __module__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__module__, target.__module__)
def test_function_doc_string(self):
# Test preservation of function __doc__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__doc__, target.__doc__)
class TestTypeObjectProxy(unittest.TestCase):
def test_class_of_class(self):
# Test preservation of class __class__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__class__, target.__class__)
self.assertTrue(isinstance(wrapper, type(target)))
def test_class_of_instance(self):
# Test preservation of instance __class__ attribute.
target = objects.Target()
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__class__, target.__class__)
self.assertTrue(isinstance(wrapper, objects.Target))
self.assertTrue(isinstance(wrapper, objects.TargetBaseClass))
def test_class_of_function(self):
# Test preservation of function __class__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(wrapper.__class__, target.__class__)
self.assertTrue(isinstance(wrapper, type(target)))
class TestDirObjectProxy(unittest.TestCase):
def test_dir_of_class(self):
# Test preservation of class __dir__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(dir(wrapper), dir(target))
def test_vars_of_class(self):
# Test preservation of class __dir__ attribute.
target = objects.Target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(vars(wrapper), vars(target))
def test_dir_of_instance(self):
# Test preservation of instance __dir__ attribute.
target = objects.Target()
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(dir(wrapper), dir(target))
def test_vars_of_instance(self):
# Test preservation of instance __dir__ attribute.
target = objects.Target()
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(vars(wrapper), vars(target))
def test_dir_of_function(self):
# Test preservation of function __dir__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(dir(wrapper), dir(target))
def test_vars_of_function(self):
# Test preservation of function __dir__ attribute.
target = objects.target
wrapper = wrapt.ObjectProxy(target)
self.assertEqual(vars(wrapper), vars(target))
class TestCallingObject(unittest.TestCase):
def test_function_no_args(self):
_args = ()
_kwargs = {}
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(function)
result = wrapper()
self.assertEqual(result, (_args, _kwargs))
def test_function_args(self):
_args = (1, 2)
_kwargs = {}
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(function)
result = wrapper(*_args)
self.assertEqual(result, (_args, _kwargs))
def test_function_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(function)
result = wrapper(**_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_function_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(function)
result = wrapper(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_no_args(self):
_args = ()
_kwargs = {}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper()
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_args(self):
_args = (1, 2)
_kwargs = {}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(*_args)
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(**_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_via_class_no_args(self):
_args = ()
_kwargs = {}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(Class())
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_via_class_args(self):
_args = (1, 2)
_kwargs = {}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(Class(), *_args)
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_via_class_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(Class(), **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instancemethod_via_class_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
class Class(object):
def function(self, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(Class(), *_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_no_args(self):
_args = ()
_kwargs = {}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper()
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_args(self):
_args = (1, 2)
_kwargs = {}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(*_args)
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(**_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_via_class_no_args(self):
_args = ()
_kwargs = {}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper()
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_via_class_args(self):
_args = (1, 2)
_kwargs = {}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(*_args)
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_via_class_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(**_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_classmethod_via_class_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
class Class(object):
@classmethod
def function(cls, *args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_no_args(self):
_args = ()
_kwargs = {}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper()
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_args(self):
_args = (1, 2)
_kwargs = {}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(*_args)
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(**_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class().function)
result = wrapper(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_via_class_no_args(self):
_args = ()
_kwargs = {}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper()
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_via_class_args(self):
_args = (1, 2)
_kwargs = {}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(*_args)
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_via_class_kwargs(self):
_args = ()
_kwargs = {"one": 1, "two": 2}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(**_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_staticmethod_via_class_args_plus_kwargs(self):
_args = (1, 2)
_kwargs = {"one": 1, "two": 2}
class Class(object):
@staticmethod
def function(*args, **kwargs):
return args, kwargs
wrapper = wrapt.CallableObjectProxy(Class.function)
result = wrapper(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
class TestIterObjectProxy(unittest.TestCase):
def test_iteration(self):
items = [1, 2]
wrapper = wrapt.ObjectProxy(items)
result = [x for x in wrapper]
self.assertEqual(result, items)
class TestContextManagerObjectProxy(unittest.TestCase):
def test_context_manager(self):
class Class(object):
def __enter__(self):
return self
def __exit__(*args, **kwargs):
return
instance = Class()
wrapper = wrapt.ObjectProxy(instance)
with wrapper:
pass
class TestEqualityObjectProxy(unittest.TestCase):
def test_object_hash(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
self.assertEqual(hash(function2), hash(function1))
def test_mapping_key(self):
def function1(*args, **kwargs):
return args, kwargs
function2 = wrapt.ObjectProxy(function1)
table = dict()
table[function1] = True
self.assertTrue(table.get(function2))
table = dict()
table[function2] = True
self.assertTrue(table.get(function1))
def test_comparison(self):
one = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertTrue(two > 1)
self.assertTrue(two >= 1)
self.assertTrue(two < 3)
self.assertTrue(two <= 3)
self.assertTrue(two != 1)
self.assertTrue(two == 2)
self.assertTrue(two != 3)
self.assertTrue(2 > one)
self.assertTrue(2 >= one)
self.assertTrue(2 < three)
self.assertTrue(2 <= three)
self.assertTrue(2 != one)
self.assertTrue(2 == two)
self.assertTrue(2 != three)
self.assertTrue(two > one)
self.assertTrue(two >= one)
self.assertTrue(two < three)
self.assertTrue(two <= three)
self.assertTrue(two != one)
self.assertTrue(two == two)
self.assertTrue(two != three)
class TestAsNumberObjectProxy(unittest.TestCase):
def test_nonzero(self):
true = wrapt.ObjectProxy(True)
false = wrapt.ObjectProxy(False)
self.assertTrue(true)
self.assertFalse(false)
self.assertTrue(bool(true))
self.assertFalse(bool(false))
self.assertTrue(not false)
self.assertFalse(not true)
def test_int(self):
one = wrapt.ObjectProxy(1)
self.assertEqual(int(one), 1)
if not PY3:
self.assertEqual(long(one), 1)
def test_float(self):
one = wrapt.ObjectProxy(1)
self.assertEqual(float(one), 1.0)
def test_add(self):
one = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy(2)
self.assertEqual(one+two, 1+2)
self.assertEqual(1+two, 1+2)
self.assertEqual(one+2, 1+2)
def test_add_uninitialized_args(self):
result = object()
one = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
two = wrapt.ObjectProxy(2)
try:
assert one + two == result
except ValueError:
pass
one = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert one + two == result
except ValueError:
pass
def test_sub(self):
one = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy(2)
self.assertEqual(one-two, 1-2)
self.assertEqual(1-two, 1-2)
self.assertEqual(one-2, 1-2)
def test_sub_uninitialized_args(self):
result = object()
one = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
two = wrapt.ObjectProxy(2)
try:
assert one - two == result
except ValueError:
pass
one = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert one - two == result
except ValueError:
pass
def test_mul(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(two*three, 2*3)
self.assertEqual(2*three, 2*3)
self.assertEqual(two*3, 2*3)
def test_mul_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert two * three == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert two * three == result
except ValueError:
pass
def test_div(self):
# On Python 2 this will pick up div and on Python
# 3 it will pick up truediv.
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(two/three, 2/3)
self.assertEqual(2/three, 2/3)
self.assertEqual(two/3, 2/3)
def test_div_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert two / three == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert two / three == result
except ValueError:
pass
def test_floordiv(self):
two = wrapt.ObjectProxy(2)
four = wrapt.ObjectProxy(4)
self.assertEqual(four//two, 4//2)
self.assertEqual(4//two, 4//2)
self.assertEqual(four//2, 4//2)
def test_floordiv_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
four = wrapt.ObjectProxy(4)
try:
assert two // four == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
four = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert two // four == result
except ValueError:
pass
def test_mod(self):
two = wrapt.ObjectProxy(2)
four = wrapt.ObjectProxy(4)
self.assertEqual(four % two, 4 % 2)
self.assertEqual(4 % two, 4 % 2)
self.assertEqual(four % 2, 4 % 2)
def test_mod_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
four = wrapt.ObjectProxy(4)
try:
assert two % four == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
four = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert two % four == result
except ValueError:
pass
def test_divmod(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(divmod(three, two), divmod(3, 2))
self.assertEqual(divmod(3, two), divmod(3, 2))
self.assertEqual(divmod(three, 2), divmod(3, 2))
def test_divmod_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert divmod(two, three) == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert divmod(two, three) == result
except ValueError:
pass
def test_pow(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(three**two, pow(3, 2))
self.assertEqual(3**two, pow(3, 2))
self.assertEqual(three**2, pow(3, 2))
self.assertEqual(pow(three, two), pow(3, 2))
self.assertEqual(pow(3, two), pow(3, 2))
self.assertEqual(pow(three, 2), pow(3, 2))
# Only PyPy implements __rpow__ for ternary pow().
# Note: No longer test for this as pypy 3.9+ seems
# to have been updated to not support ternary pow()
# in same way.
# if is_pypy:
# self.assertEqual(pow(three, two, 2), pow(3, 2, 2))
# self.assertEqual(pow(3, two, 2), pow(3, 2, 2))
self.assertEqual(pow(three, 2, 2), pow(3, 2, 2))
def test_pow_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert three**two == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert three**two == result
except ValueError:
pass
def test_lshift(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(three << two, 3 << 2)
self.assertEqual(3 << two, 3 << 2)
self.assertEqual(three << 2, 3 << 2)
def test_lshift_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert three << two == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert three << two == result
except ValueError:
pass
def test_rshift(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(three >> two, 3 >> 2)
self.assertEqual(3 >> two, 3 >> 2)
self.assertEqual(three >> 2, 3 >> 2)
def test_rshift_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert three >> two == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert three >> two == result
except ValueError:
pass
def test_and(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(three & two, 3 & 2)
self.assertEqual(3 & two, 3 & 2)
self.assertEqual(three & 2, 3 & 2)
def test_and_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert three & two == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert three & two == result
except ValueError:
pass
def test_xor(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(three ^ two, 3 ^ 2)
self.assertEqual(3 ^ two, 3 ^ 2)
self.assertEqual(three ^ 2, 3 ^ 2)
def test_xor_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert three ^ two == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert three ^ two == result
except ValueError:
pass
def test_or(self):
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy(3)
self.assertEqual(three | two, 3 | 2)
self.assertEqual(3 | two, 3 | 2)
self.assertEqual(three | 2, 3 | 2)
def test_or_uninitialized_args(self):
result = object()
two = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
three = wrapt.ObjectProxy(3)
try:
assert three | two == result
except ValueError:
pass
two = wrapt.ObjectProxy(2)
three = wrapt.ObjectProxy.__new__(wrapt.ObjectProxy)
try:
assert three | two == result
except ValueError:
pass
def test_iadd(self):
value = wrapt.ObjectProxy(1)
one = wrapt.ObjectProxy(1)
value += 1
self.assertEqual(value, 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value += one
self.assertEqual(value, 3)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_isub(self):
value = wrapt.ObjectProxy(1)
one = wrapt.ObjectProxy(1)
value -= 1
self.assertEqual(value, 0)
self.assertEqual(type(value), wrapt.ObjectProxy)
value -= one
self.assertEqual(value, -1)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_imul(self):
value = wrapt.ObjectProxy(2)
two = wrapt.ObjectProxy(2)
value *= 2
self.assertEqual(value, 4)
self.assertEqual(type(value), wrapt.ObjectProxy)
value *= two
self.assertEqual(value, 8)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_idiv(self):
# On Python 2 this will pick up div and on Python
# 3 it will pick up truediv.
value = wrapt.ObjectProxy(2)
two = wrapt.ObjectProxy(2)
value /= 2
self.assertEqual(value, 2/2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value /= two
self.assertEqual(value, 2/2/2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_ifloordiv(self):
value = wrapt.ObjectProxy(2)
two = wrapt.ObjectProxy(2)
value //= 2
self.assertEqual(value, 2//2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value //= two
self.assertEqual(value, 2//2//2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_imod(self):
value = wrapt.ObjectProxy(10)
two = wrapt.ObjectProxy(2)
value %= 2
self.assertEqual(value, 10 % 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value %= two
self.assertEqual(value, 10 % 2 % 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_ipow(self):
value = wrapt.ObjectProxy(10)
two = wrapt.ObjectProxy(2)
value **= 2
self.assertEqual(value, 10**2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value **= two
self.assertEqual(value, 10**2**2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_ilshift(self):
value = wrapt.ObjectProxy(256)
two = wrapt.ObjectProxy(2)
value <<= 2
self.assertEqual(value, 256 << 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value <<= two
self.assertEqual(value, 256 << 2 << 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_irshift(self):
value = wrapt.ObjectProxy(2)
two = wrapt.ObjectProxy(2)
value >>= 2
self.assertEqual(value, 2 >> 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value >>= two
self.assertEqual(value, 2 >> 2 >> 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_iand(self):
value = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy(2)
value &= 2
self.assertEqual(value, 1 & 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value &= two
self.assertEqual(value, 1 & 2 & 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_ixor(self):
value = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy(2)
value ^= 2
self.assertEqual(value, 1 ^ 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value ^= two
self.assertEqual(value, 1 ^ 2 ^ 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_ior(self):
value = wrapt.ObjectProxy(1)
two = wrapt.ObjectProxy(2)
value |= 2
self.assertEqual(value, 1 | 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
value |= two
self.assertEqual(value, 1 | 2 | 2)
self.assertEqual(type(value), wrapt.ObjectProxy)
def test_ior_list_self(self):
value = wrapt.ObjectProxy([])
try:
value |= value
except TypeError:
pass
def test_neg(self):
value = wrapt.ObjectProxy(1)
self.assertEqual(-value, -1)
def test_pos(self):
value = wrapt.ObjectProxy(1)
self.assertEqual(+value, 1)
def test_abs(self):
value = wrapt.ObjectProxy(-1)
self.assertEqual(abs(value), 1)
def test_invert(self):
value = wrapt.ObjectProxy(1)
self.assertEqual(~value, ~1)
def test_oct(self):
value = wrapt.ObjectProxy(20)
self.assertEqual(oct(value), oct(20))
def test_hex(self):
value = wrapt.ObjectProxy(20)
self.assertEqual(hex(value), hex(20))
def test_index(self):
class Class(object):
def __index__(self):
return 1
value = wrapt.ObjectProxy(Class())
items = [0, 1, 2]
self.assertEqual(items[value], items[1])
class TestAsSequenceObjectProxy(unittest.TestCase):
def test_length(self):
value = wrapt.ObjectProxy(list(range(3)))
self.assertEqual(len(value), 3)
def test_contains(self):
value = wrapt.ObjectProxy(list(range(3)))
self.assertTrue(2 in value)
self.assertFalse(-2 in value)
def test_getitem(self):
value = wrapt.ObjectProxy(list(range(3)))
self.assertEqual(value[1], 1)
def test_setitem(self):
value = wrapt.ObjectProxy(list(range(3)))
value[1] = -1
self.assertEqual(value[1], -1)
def test_delitem(self):
value = wrapt.ObjectProxy(list(range(3)))
self.assertEqual(len(value), 3)
del value[1]
self.assertEqual(len(value), 2)
self.assertEqual(value[1], 2)
def test_getslice(self):
value = wrapt.ObjectProxy(list(range(5)))
self.assertEqual(value[1:4], [1, 2, 3])
def test_setslice(self):
value = wrapt.ObjectProxy(list(range(5)))
value[1:4] = reversed(value[1:4])
self.assertEqual(value[1:4], [3, 2, 1])
def test_delslice(self):
value = wrapt.ObjectProxy(list(range(5)))
del value[1:4]
self.assertEqual(len(value), 2)
self.assertEqual(value, [0, 4])
class TestAsMappingObjectProxy(unittest.TestCase):
def test_length(self):
value = wrapt.ObjectProxy(dict.fromkeys(range(3), False))
self.assertEqual(len(value), 3)
def test_contains(self):
value = wrapt.ObjectProxy(dict.fromkeys(range(3), False))
self.assertTrue(2 in value)
self.assertFalse(-2 in value)
def test_getitem(self):
value = wrapt.ObjectProxy(dict.fromkeys(range(3), False))
self.assertEqual(value[1], False)
def test_setitem(self):
value = wrapt.ObjectProxy(dict.fromkeys(range(3), False))
value[1] = True
self.assertEqual(value[1], True)
def test_delitem(self):
value = wrapt.ObjectProxy(dict.fromkeys(range(3), False))
self.assertEqual(len(value), 3)
del value[1]
self.assertEqual(len(value), 2)
class TestObjectRepresentationObjectProxy(unittest.TestCase):
def test_str(self):
value = wrapt.ObjectProxy(10)
self.assertEqual(str(value), str(10))
value = wrapt.ObjectProxy((10,))
self.assertEqual(str(value), str((10,)))
value = wrapt.ObjectProxy([10])
self.assertEqual(str(value), str([10]))
value = wrapt.ObjectProxy({10: 10})
self.assertEqual(str(value), str({10: 10}))
def test_repr(self):
number = 10
value = wrapt.ObjectProxy(number)
self.assertNotEqual(repr(value).find('ObjectProxy at'), -1)
class TestDerivedClassCreation(unittest.TestCase):
def test_derived_new(self):
class DerivedObjectProxy(wrapt.ObjectProxy):
def __new__(cls, wrapped):
instance = super(DerivedObjectProxy, cls).__new__(cls)
instance.__init__(wrapped)
def __init__(self, wrapped):
super(DerivedObjectProxy, self).__init__(wrapped)
def function():
pass
obj = DerivedObjectProxy(function)
def test_derived_setattr(self):
class DerivedObjectProxy(wrapt.ObjectProxy):
def __init__(self, wrapped):
self._self_attribute = True
super(DerivedObjectProxy, self).__init__(wrapped)
def function():
pass
obj = DerivedObjectProxy(function)
def test_derived_missing_init(self):
class DerivedObjectProxy(wrapt.ObjectProxy):
def __init__(self, wrapped):
self.__wrapped__ = wrapped
def function():
pass
obj = DerivedObjectProxy(function)
self.assertEqual(function, obj)
self.assertEqual(function, obj.__wrapped__)
class DerivedClassAttributes(unittest.TestCase):
def test_setup_class_attributes(self):
def function():
pass
class DerivedObjectProxy(wrapt.ObjectProxy):
pass
obj = DerivedObjectProxy(function)
DerivedObjectProxy.ATTRIBUTE = 1
self.assertEqual(obj.ATTRIBUTE, 1)
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
del DerivedObjectProxy.ATTRIBUTE
self.assertFalse(hasattr(DerivedObjectProxy, 'ATTRIBUTE'))
self.assertFalse(hasattr(obj, 'ATTRIBUTE'))
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
def test_override_class_attributes(self):
def function():
pass
class DerivedObjectProxy(wrapt.ObjectProxy):
ATTRIBUTE = 1
obj = DerivedObjectProxy(function)
self.assertEqual(DerivedObjectProxy.ATTRIBUTE, 1)
self.assertEqual(obj.ATTRIBUTE, 1)
obj.ATTRIBUTE = 2
self.assertEqual(DerivedObjectProxy.ATTRIBUTE, 1)
self.assertEqual(obj.ATTRIBUTE, 2)
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
del DerivedObjectProxy.ATTRIBUTE
self.assertFalse(hasattr(DerivedObjectProxy, 'ATTRIBUTE'))
self.assertEqual(obj.ATTRIBUTE, 2)
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
def test_class_properties(self):
def function():
pass
class DerivedObjectProxy(wrapt.ObjectProxy):
def __init__(self, wrapped):
super(DerivedObjectProxy, self).__init__(wrapped)
self._self_attribute = 1
@property
def ATTRIBUTE(self):
return self._self_attribute
@ATTRIBUTE.setter
def ATTRIBUTE(self, value):
self._self_attribute = value
@ATTRIBUTE.deleter
def ATTRIBUTE(self):
del self._self_attribute
obj = DerivedObjectProxy(function)
self.assertEqual(obj.ATTRIBUTE, 1)
obj.ATTRIBUTE = 2
self.assertEqual(obj.ATTRIBUTE, 2)
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
del obj.ATTRIBUTE
self.assertFalse(hasattr(obj, 'ATTRIBUTE'))
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
obj.ATTRIBUTE = 1
self.assertEqual(obj.ATTRIBUTE, 1)
obj.ATTRIBUTE = 2
self.assertEqual(obj.ATTRIBUTE, 2)
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
del obj.ATTRIBUTE
self.assertFalse(hasattr(obj, 'ATTRIBUTE'))
self.assertFalse(hasattr(function, 'ATTRIBUTE'))
class OverrideAttributeAccess(unittest.TestCase):
def test_attr_functions(self):
def function():
pass
proxy = wrapt.ObjectProxy(function)
self.assertTrue(hasattr(proxy, '__getattr__'))
self.assertTrue(hasattr(proxy, '__setattr__'))
self.assertTrue(hasattr(proxy, '__delattr__'))
def test_override_getattr(self):
def function():
pass
accessed = []
class DerivedObjectProxy(wrapt.ObjectProxy):
def __getattr__(self, name):
accessed.append(name)
try:
__getattr__ = super(DerivedObjectProxy, self).__getattr__
except AttributeError as e:
raise RuntimeError(str(e))
return __getattr__(name)
function.attribute = 1
proxy = DerivedObjectProxy(function)
self.assertEqual(proxy.attribute, 1)
self.assertTrue('attribute' in accessed)
class CallableFunction(unittest.TestCase):
def test_proxy_hasattr_call(self):
proxy = wrapt.ObjectProxy(None)
self.assertFalse(hasattr(proxy, '__call__'))
def test_proxy_getattr_call(self):
proxy = wrapt.ObjectProxy(None)
self.assertEqual(getattr(proxy, '__call__', None), None)
def test_proxy_is_callable(self):
proxy = wrapt.ObjectProxy(None)
self.assertFalse(callable(proxy))
def test_callable_proxy_hasattr_call(self):
proxy = wrapt.CallableObjectProxy(None)
self.assertTrue(hasattr(proxy, '__call__'))
def test_callable_proxy_getattr_call(self):
proxy = wrapt.CallableObjectProxy(None)
self.assertTrue(getattr(proxy, '__call__', None), None)
def test_callable_proxy_is_callable(self):
proxy = wrapt.CallableObjectProxy(None)
self.assertTrue(callable(proxy))
class SpecialMethods(unittest.TestCase):
def test_class_bytes(self):
if PY3:
class Class(object):
def __bytes__(self):
return b'BYTES'
instance = Class()
proxy = wrapt.ObjectProxy(instance)
self.assertEqual(bytes(instance), bytes(proxy))
def test_str_format(self):
instance = 'abcd'
proxy = wrapt.ObjectProxy(instance)
self.assertEqual(format(instance, ''), format(proxy, ''))
def test_list_reversed(self):
instance = [1, 2]
proxy = wrapt.ObjectProxy(instance)
self.assertEqual(list(reversed(instance)), list(reversed(proxy)))
def test_complex(self):
instance = 1.0+2j
proxy = wrapt.ObjectProxy(instance)
self.assertEqual(complex(instance), complex(proxy))
def test_decimal_complex(self):
import decimal
instance = decimal.Decimal(123)
proxy = wrapt.ObjectProxy(instance)
self.assertEqual(complex(instance), complex(proxy))
def test_fractions_round(self):
import fractions
instance = fractions.Fraction('1/2')
proxy = wrapt.ObjectProxy(instance)
self.assertEqual(round(instance), round(proxy))
class TestArgumentUnpacking(unittest.TestCase):
def test_self_keyword_argument_on_dict(self):
# A dict when given self as keyword argument uses it to create item in
# the dict and no attempt is made to use a positional argument.
d = wrapt.CallableObjectProxy(dict)(self='self')
self.assertEqual(d, dict(self='self'))
def test_self_positional_argument_on_class_init(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
o = Object('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
o = wrapt.CallableObjectProxy(Object)('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
def test_self_keyword_argument_on_class_init_1(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
with self.assertRaises(TypeError) as e:
wrapt.CallableObjectProxy(Object)(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_2(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
with self.assertRaises(TypeError) as e:
wrapt.CallableObjectProxy(Object)(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_renamed(self):
class Object:
def __init__(_self, *args, **kwargs):
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
o = wrapt.CallableObjectProxy(Object)(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
def test_self_keyword_argument_on_class_init_overloaded_1(self):
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
o = wrapt.CallableObjectProxy(Object)(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
def test_self_keyword_argument_on_class_init_overloaded_2(self):
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
with self.assertRaises(TypeError) as e:
wrapt.CallableObjectProxy(Object)(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
class TestArgumentUnpackingPartial(unittest.TestCase):
def test_self_keyword_argument_on_dict_1(self):
# A dict when given self as keyword argument uses it to create item in
# the dict and no attempt is made to use a positional argument.
wrapper = wrapt.PartialCallableObjectProxy(dict, arg1='arg1')
d = wrapper(self='self')
self.assertEqual(d, dict(self='self', arg1='arg1'))
def test_self_keyword_argument_on_dict_2(self):
# A dict when given self as keyword argument uses it to create item in
# the dict and no attempt is made to use a positional argument.
wrapper = wrapt.PartialCallableObjectProxy(dict, self='self')
d = wrapper(arg1='arg1')
self.assertEqual(d, dict(self='self', arg1='arg1'))
def test_self_positional_argument_on_class_init_1(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
o = Object('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
wrapper = wrapt.PartialCallableObjectProxy(Object, 'arg1')
o = wrapper()
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
def test_self_positional_argument_on_class_init_2(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
o = Object('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
wrapper = wrapt.PartialCallableObjectProxy(Object)
o = wrapper('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
def test_self_keyword_argument_on_class_init_1a(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
wrapper = wrapt.PartialCallableObjectProxy(Object, self='self')
with self.assertRaises(TypeError) as e:
o = wrapper()
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_1b(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
wrapper = wrapt.PartialCallableObjectProxy(Object)
with self.assertRaises(TypeError) as e:
o = wrapper(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_2a(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
wrapper = wrapt.PartialCallableObjectProxy(Object, arg1='arg1', self='self')
with self.assertRaises(TypeError) as e:
o = wrapper()
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_2b(self):
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
wrapper = wrapt.PartialCallableObjectProxy(Object)
with self.assertRaises(TypeError) as e:
o = wrapper(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_renamed_1(self):
class Object:
def __init__(_self, *args, **kwargs):
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
wrapper = wrapt.PartialCallableObjectProxy(Object, self='self')
o = wrapper()
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
def test_self_keyword_argument_on_class_init_renamed_2(self):
class Object:
def __init__(_self, *args, **kwargs):
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
wrapper = wrapt.PartialCallableObjectProxy(Object)
o = wrapper(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
def test_self_keyword_argument_on_class_init_overloaded_1a(self):
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
wrapper = wrapt.PartialCallableObjectProxy(Object, self='self')
o = wrapper()
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
def test_self_keyword_argument_on_class_init_overloaded_1b(self):
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
wrapper = wrapt.PartialCallableObjectProxy(Object)
o = wrapper(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
def test_self_keyword_argument_on_class_init_overloaded_2a(self):
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
wrapper = wrapt.PartialCallableObjectProxy(Object, _self='self')
with self.assertRaises(TypeError) as e:
o = wrapper()
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_overloaded_2b(self):
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
wrapper = wrapt.PartialCallableObjectProxy(Object)
with self.assertRaises(TypeError) as e:
o = wrapper(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
class TestArgumentUnpackingWrapperBase(unittest.TestCase):
def test_self_keyword_argument_on_dict(self):
# A dict when given self as keyword argument uses it to create item in
# the dict and no attempt is made to use a positional argument.
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
d = wrapt.FunctionWrapper(dict, wrapper)(self='self')
self.assertEqual(d, dict(self='self'))
def test_self_positional_argument_on_class_init(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
o = Object('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
o = wrapt.FunctionWrapper(Object, wrapper)('arg1')
self.assertEqual(o._args, ('arg1',))
self.assertEqual(o._kwargs, {})
def test_self_keyword_argument_on_class_init_1(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
with self.assertRaises(TypeError) as e:
wrapt.FunctionWrapper(Object, wrapper)(self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_2(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
with self.assertRaises(TypeError) as e:
wrapt.FunctionWrapper(Object, wrapper)(arg1='arg1', self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument 'self'.*", str(e.exception)), None)
def test_self_keyword_argument_on_class_init_renamed(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def __init__(_self, *args, **kwargs):
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
o = wrapt.FunctionWrapper(Object, wrapper)(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, dict(self="self"))
def test_self_keyword_argument_on_class_init_overloaded_1(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
o = Object(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
o = wrapt.FunctionWrapper(Object, wrapper)(self='self')
self.assertEqual(o._args, ())
self.assertEqual(o._kwargs, {})
self.assertEqual(o._self, 'self')
def test_self_keyword_argument_on_class_init_overloaded_2(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def __init__(_self, self, *args, **kwargs):
_self._self = self
_self._args = args
_self._kwargs = kwargs
with self.assertRaises(TypeError) as e:
Object(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
with self.assertRaises(TypeError) as e:
wrapt.FunctionWrapper(Object, wrapper)(_self='self')
self.assertNotEqual(re.match(".*got multiple values for (keyword )?argument '_self'.*", str(e.exception)), None)
class TestArgumentUnpackingBoundFunctionWrapper(unittest.TestCase):
def test_self_keyword_argument_on_classmethod(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
@classmethod
def function(cls, self, *args, **kwargs):
return self, args, kwargs
function = wrapt.FunctionWrapper(function, wrapper)
result = Object().function(self='self')
self.assertEqual(result, ('self', (), {}))
def test_self_keyword_argument_on_instancemethod(self):
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
def function(_self, self, *args, **kwargs):
return self, args, kwargs
function = wrapt.FunctionWrapper(function, wrapper)
result = Object().function(self='self')
self.assertEqual(result, ('self', (), {}))
class TestArgumentUnpackingDecorator(unittest.TestCase):
def test_self_keyword_argument_on_function(self):
@wrapt.decorator
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
@wrapper
def function(self, *args, **kwargs):
return self, args, kwargs
result = function(self='self')
self.assertEqual(result, ('self', (), {}))
result = function('self')
self.assertEqual(result, ('self', (), {}))
def test_self_keyword_argument_on_classmethod(self):
@wrapt.decorator
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
@wrapper
@classmethod
def function(cls, self, *args, **kwargs):
return self, args, kwargs
result = Object().function(self='self')
self.assertEqual(result, ('self', (), {}))
result = Object().function('self', arg1='arg1')
self.assertEqual(result, ('self', (), dict(arg1='arg1')))
def test_self_keyword_argument_on_instancemethod(self):
@wrapt.decorator
def wrapper(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
class Object:
@wrapper
def function(_self, self, *args, **kwargs):
return self, args, kwargs
result = Object().function(self='self', arg1='arg1')
self.assertEqual(result, ('self', (), dict(arg1='arg1')))
result = Object().function('self', arg1='arg1')
self.assertEqual(result, ('self', (), dict(arg1='arg1')))
class TestOverridingSpecialAttributes(unittest.TestCase):
def test_overriding_class_attribute(self):
class Object1: pass
class Object2(Object1): pass
o1 = Object1()
self.assertEqual(o1.__class__, type(o1))
o2 = Object2()
self.assertEqual(o2.__class__, type(o2))
o2.__class__ = type(o1)
self.assertEqual(o2.__class__, type(o1))
if __name__ == '__main__':
unittest.main()
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