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Re: Mock pathc question

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  Re: Mock pathc question Avishay Balderman <balderman@gmail.com> - 2013-08-08 07:51 +0300

#52166 — Re: Mock pathc question

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Hi
1) I prefer to use start/stop and not the decorator .
2) mock_play is the name of the module where the code belongs

Thanks

Avishay

Sent from my iPhone

On 7 באוג 2013, at 21:01, Jean-Michel Pichavant <jeanmichel@sequans.com>
wrote:

----- Mail original -----

Hi

I would like to mock patch the attribute 'calc' in the 'Client' class

(See code below).

I have 2 unit tests:

1) test1 -  that patch an existing instance of 'Client' - it works

fine.

1) test2 -  that tries to patch the 'Client' class. My expectation is

that after the patching, every instance of 'Client' will be created

with 'MockClient'. However this is not the case..


Can you please advice?


Thanks


Avishay



One way to do this is to decorate the test2 method,
http://www.voidspace.org.uk/python/mock/patch.html.
This way you get rid of all the start/stop boiler-plate, the scope of your
patch is the scope of the method.

*code not tested*

class TestIt(unittest.TestCase):
   def setUp(self):
       pass

   @mock.patch(Calc, MockCalc)
   def test2(self):
       client = Client()
       # result should be 7
       print str(client.add(1,34))

   def test3(self):
       client = Client()
       # result should be 35 again
       print str(client.add(1,34))

By the way, what is 'mock_play' in your original post, could be the reason
why you things did go wrong.

JM


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