假设我有单元测试methodA
,在下面的类定义:如何单元测试的装饰方法
class SomeClass(object):
def wrapper(fun):
def _fun(self, *args, **kwargs):
self.b = 'Original'
fun(self, *args, **kwargs)
return _fun
@wrapper
def methodA(self):
pass
我的测试类如下:
from mock import patch
class TestSomeClass(object):
def testMethodA(self):
def mockDecorator(f):
def _f(self, *args, **kwargs):
self.b = 'Mocked'
f(self, *args, **kwargs)
return _f
with patch('some_class.SomeClass.wrapper', mockDecorator):
from some_class import SomeClass
s = SomeClass()
s.methodA()
assert s.b == 'Mocked', 's.b is equal to %s' % s.b
如果我运行测试,我打了断言:
File "/home/klinden/workinprogress/mockdecorators/test_some_class.py", line 17, in testMethodA
assert s.b == 'Mocked', 's.b is equal to %s' % s.b
AssertionError: s.b is equal to Original
如果我在测试中粘贴断点,修补后,这是我可以看到wrapper
已经嘲笑了就好了,但仍然methodA
引用旧包装:
(Pdb) p s.wrapper
<bound method SomeClass.mockDecorator of <some_class.SomeClass object at 0x7f9ed1bf60d0>>
(Pdb) p s.methodA
<bound method SomeClass._fun of <some_class.SomeClass object at 0x7f9ed1bf60d0>>
的问题是在这里什么你知道吗?