Files
deb-python-wrapt/tests/test_instancemethod.py
2016-06-08 11:15:13 +07:00

446 lines
13 KiB
Python

from __future__ import print_function
import unittest
import inspect
import imp
import wrapt
from compat import PY2, PY3, exec_
DECORATORS_CODE = """
import wrapt
@wrapt.decorator
def passthru_decorator(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
"""
decorators = imp.new_module('decorators')
exec_(DECORATORS_CODE, decorators.__dict__, decorators.__dict__)
class OldClass1():
def function(self, arg):
'''documentation'''
return arg
OldClass1o = OldClass1
class OldClass1():
@decorators.passthru_decorator
def function(self, arg):
'''documentation'''
return arg
OldClass1d = OldClass1
class TestNamingInstanceMethodOldStyle(unittest.TestCase):
def test_class_object_name(self):
# Test preservation of instance method __name__ attribute.
self.assertEqual(OldClass1d.function.__name__,
OldClass1o.function.__name__)
def test_instance_object_name(self):
# Test preservation of instance method __name__ attribute.
self.assertEqual(OldClass1d().function.__name__,
OldClass1o().function.__name__)
def test_class_object_qualname(self):
# Test preservation of instance method __qualname__ attribute.
try:
__qualname__ = OldClass1o.original.__qualname__
except AttributeError:
pass
else:
self.assertEqual(OldClass1d.function.__qualname__, __qualname__)
def test_instance_object_qualname(self):
# Test preservation of instance method __qualname__ attribute.
try:
__qualname__ = OldClass1o().original.__qualname__
except AttributeError:
pass
else:
self.assertEqual(OldClass1d().function.__qualname__, __qualname__)
def test_class_module_name(self):
# Test preservation of instance method __module__ attribute.
self.assertEqual(OldClass1d.function.__module__,
OldClass1o.function.__module__)
def test_instance_module_name(self):
# Test preservation of instance method __module__ attribute.
self.assertEqual(OldClass1d().function.__module__,
OldClass1o().function.__module__)
def test_class_doc_string(self):
# Test preservation of instance method __doc__ attribute.
self.assertEqual(OldClass1d.function.__doc__,
OldClass1o.function.__doc__)
def test_instance_doc_string(self):
# Test preservation of instance method __doc__ attribute.
self.assertEqual(OldClass1d().function.__doc__,
OldClass1o().function.__doc__)
def test_class_argspec(self):
# Test preservation of instance method argument specification.
original_argspec = inspect.getargspec(OldClass1o.function)
function_argspec = inspect.getargspec(OldClass1d.function)
self.assertEqual(original_argspec, function_argspec)
def test_instance_argspec(self):
# Test preservation of instance method argument specification.
original_argspec = inspect.getargspec(OldClass1o().function)
function_argspec = inspect.getargspec(OldClass1d().function)
self.assertEqual(original_argspec, function_argspec)
def test_getmembers(self):
original_members = inspect.getmembers(OldClass1o().function)
function_members = inspect.getmembers(OldClass1d().function)
def test_class_isinstance(self):
# Test preservation of isinstance() checks.
self.assertTrue(isinstance(OldClass1d.function,
type(OldClass1o.function)))
def test_instance_isinstance(self):
# Test preservation of isinstance() checks.
self.assertTrue(isinstance(OldClass1d().function,
type(OldClass1o().function)))
class NewClass1(object):
def function(self, arg):
'''documentation'''
return arg
NewClass1o = NewClass1
class NewClass1(object):
@decorators.passthru_decorator
def function(self, arg):
'''documentation'''
return arg
NewClass1d = NewClass1
class TestNamingInstanceMethodNewStyle(unittest.TestCase):
def test_class_object_name(self):
# Test preservation of instance method __name__ attribute.
self.assertEqual(NewClass1d.function.__name__,
NewClass1o.function.__name__)
def test_instance_object_name(self):
# Test preservation of instance method __name__ attribute.
self.assertEqual(NewClass1d().function.__name__,
NewClass1o().function.__name__)
def test_class_object_qualname(self):
# Test preservation of instance method __qualname__ attribute.
try:
__qualname__ = NewClass1o.original.__qualname__
except AttributeError:
pass
else:
self.assertEqual(NewClass1d.function.__qualname__, __qualname__)
def test_instance_object_qualname(self):
# Test preservation of instance method __qualname__ attribute.
try:
__qualname__ = NewClass1o().original.__qualname__
except AttributeError:
pass
else:
self.assertEqual(NewClass1d().function.__qualname__, __qualname__)
def test_class_module_name(self):
# Test preservation of instance method __module__ attribute.
self.assertEqual(NewClass1d.function.__module__,
NewClass1o.function.__module__)
def test_instance_module_name(self):
# Test preservation of instance method __module__ attribute.
self.assertEqual(NewClass1d().function.__module__,
NewClass1o().function.__module__)
def test_class_doc_string(self):
# Test preservation of instance method __doc__ attribute.
self.assertEqual(NewClass1d.function.__doc__,
NewClass1o.function.__doc__)
def test_instance_doc_string(self):
# Test preservation of instance method __doc__ attribute.
self.assertEqual(NewClass1d().function.__doc__,
NewClass1o().function.__doc__)
def test_class_argspec(self):
# Test preservation of instance method argument specification.
original_argspec = inspect.getargspec(NewClass1o.function)
function_argspec = inspect.getargspec(NewClass1d.function)
self.assertEqual(original_argspec, function_argspec)
def test_instance_argspec(self):
# Test preservation of instance method argument specification.
original_argspec = inspect.getargspec(NewClass1o().function)
function_argspec = inspect.getargspec(NewClass1d().function)
self.assertEqual(original_argspec, function_argspec)
def test_class_isinstance(self):
# Test preservation of isinstance() checks.
self.assertTrue(isinstance(NewClass1d.function,
type(NewClass1o.function)))
def test_instance_isinstance(self):
# Test preservation of isinstance() checks.
self.assertTrue(isinstance(NewClass1d().function,
type(NewClass1o().function)))
class TestCallingInstanceMethodOldStyle(unittest.TestCase):
def test_class_call_function(self):
# Test calling instancemethod via class and passing in the class
# instance directly.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class():
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class._function(*((Class(),)+_args), **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instance_call_function(self):
# Test calling instancemethod via class instance.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class():
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class()._function(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_class_call_function_nested(self):
# Test calling instancemethod via class and passing in the class
# instance directly.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class():
@_decorator
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class._function(*((Class(),)+_args), **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instance_call_function_nested(self):
# Test calling instancemethod via class instance.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class():
@_decorator
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class()._function(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
class TestCallingInstanceMethodNewStyle(unittest.TestCase):
def test_class_call_function(self):
# Test calling instancemethod via class and passing in the class
# instance directly.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class(object):
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class._function(Class(), *_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instance_call_function(self):
# Test calling instancemethod via class instance.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class(object):
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class()._function(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_class_call_function_nested(self):
# Test calling instancemethod via class and passing in the class
# instance directly.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class(object):
@_decorator
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class._function(Class(), *_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
def test_instance_call_function_nested(self):
# Test calling instancemethod via class instance.
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertNotEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
class Class(object):
@_decorator
@_decorator
def _function(self, *args, **kwargs):
return (args, kwargs)
result = Class()._function(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
if __name__ == '__main__':
unittest.main()