Created
January 28, 2013 16:50
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dynamic proxy... inject args and kwargs to all the methods of the target
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# -*- coding: utf-8 -*- | |
import unittest | |
from doublex import * | |
class Proxy(object): | |
class Method(object): | |
def __init__(self, target, method_name, *aditional_args, **aditional_kwargs): | |
self.target = target | |
self.method_name = method_name | |
self.aditional_args = aditional_args | |
self.aditional_kwargs = aditional_kwargs | |
def __call__(self, *args, **kwargs): | |
complete_args = [] | |
complete_args.extend(args) | |
complete_args.extend(self.aditional_args) | |
complete_kwargs = {} | |
complete_kwargs.update(kwargs) | |
complete_kwargs.update(self.aditional_kwargs) | |
target_symbol = getattr(self.target, self.method_name) | |
target_symbol(*complete_args, **complete_kwargs) | |
def __init__(self, target, *aditional_args, **aditional_kwargs): | |
self.target = target | |
self.aditional_args = aditional_args | |
self.aditional_kwargs = aditional_kwargs | |
def __getattr__(self, name): | |
return Proxy.Method(self.target, name, *self.aditional_args, **self.aditional_kwargs) | |
class ProxyTest(unittest.TestCase): | |
def test_proxy_call_method_with_aditional_args(self): | |
target = Spy() | |
proxy = Proxy(target, 3, param2='param2') | |
proxy.method1(1,2, param1='param1') | |
assert_that(target.method1, called().with_args(1, 2, 3, param1='param1', param2='param2')) | |
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