I have a signal_handler connected through a decorator, something like this very simple one:
@receiver(post_save, sender=User,
dispatch_uid='myfile.signal_handler_post_save_user')
def signal_handler_post_save_user(sender, *args, **kwargs):
# do stuff
What I want to do is to mock it with the mock library http://www.voidspace.org.uk/python/mock/ in a test, to check how many times django calls it. My code at the moment is something like:
def test_cache():
with mock.patch('myapp.myfile.signal_handler_post_save_user') as mocked_handler:
# do stuff that will call the post_save of User
self.assert_equal(mocked_handler.call_count, 1)
The problem here is that the original signal handler is called even if mocked, most likely because the @receiver
decorator is storing a copy of the signal handler somewhere, so I'm mocking the wrong code.
So the question: how do I mock my signal handler to make my test work?
Note that if I change my signal handler to:
def _support_function(*args, **kwargs):
# do stuff
@receiver(post_save, sender=User,
dispatch_uid='myfile.signal_handler_post_save_user')
def signal_handler_post_save_user(sender, *args, **kwargs):
_support_function(*args, **kwargs)
and I mock _support_function
instead, everything works as expected.
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