Hi All,
I bumped into this using Michael Foord's Mock library.
It feels like a bug to me, but thought I'd ask here before logging one
in the tracker in case people know that we won't be able to fix it:
On 05/11/2012 13:43, Michael Foord wrote:
>
>>>>>> class Foo(object):
>>> ... def __setattr__(s, k, v):
>>> ... print k
>>> ...
>>>>>> f = Foo()
>>>>>>
>>>>>> f.g = f.x = 3
>>> g
>>> x
>>
>> Hmm, that's definitely counter-intuitive. Worth raising on python-dev?
>
> Well, I guess "it's always been that way", so changing it would be backwards incompatible. Feel free to raise it though. :-)
Here's the actual problem I had:
>>>>>>> mock = Mock()
>>>>>>> inst = mock.Popen.return_value = mock.Popen_instance = Mock(spec=Popen)
>>>
>>>
>>> Here the *return_value* is set first. So when mock.Popen_instance is assigned it already has a parent! (Setting a mock as the return value of another mock also establishes the child / parent relationship.)
>>>
>>> This is why calls to the instance are then not recorded in "method_calls".
cheers,
Chris
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