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from __future__ import print_function
import unittest
import inspect
import types
import wrapt
from compat import exec_, getfullargspec
DECORATORS_CODE = """
import wrapt
@wrapt.decorator
def passthru_decorator(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
"""
decorators = types.ModuleType('decorators')
exec_(DECORATORS_CODE, decorators.__dict__, decorators.__dict__)
def function1(arg):
'''documentation'''
return arg
function1o = function1
function1d = decorators.passthru_decorator(function1)
assert(function1d is not function1o)
class TestNamingFunction(unittest.TestCase):
def test_object_name(self):
# Test preservation of function __name__ attribute.
self.assertEqual(function1d.__name__, function1o.__name__)
def test_object_qualname(self):
# Test preservation of function __qualname__ attribute.
try:
__qualname__ = function1o.__qualname__
except AttributeError:
pass
else:
self.assertEqual(function1d.__qualname__, __qualname__)
def test_module_name(self):
# Test preservation of function __module__ attribute.
self.assertEqual(function1d.__module__, __name__)
def test_doc_string(self):
# Test preservation of function __doc__ attribute.
self.assertEqual(function1d.__doc__, function1o.__doc__)
def test_argspec(self):
# Test preservation of function argument specification.
function1o_argspec = getfullargspec(function1o)
function1d_argspec = getfullargspec(function1d)
self.assertEqual(function1o_argspec, function1d_argspec)
def test_getmembers(self):
function1o_members = inspect.getmembers(function1o)
function1d_members = inspect.getmembers(function1d)
def test_isinstance(self):
# Test preservation of isinstance() checks.
self.assertTrue(isinstance(function1d, type(function1o)))
class TestCallingFunction(unittest.TestCase):
def test_call_function(self):
_args = (1, 2)
_kwargs = {'one': 1, 'two': 2}
@wrapt.decorator
def _decorator(wrapped, instance, args, kwargs):
self.assertEqual(instance, None)
self.assertEqual(args, _args)
self.assertEqual(kwargs, _kwargs)
return wrapped(*args, **kwargs)
@_decorator
def _function(*args, **kwargs):
return args, kwargs
result = _function(*_args, **_kwargs)
self.assertEqual(result, (_args, _kwargs))
if __name__ == '__main__':
unittest.main()
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