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