patch function with same name as module python django mock

Question

|-- my_module
|   |-- __init__.py
|   |-- function.py
`-- test.py

in function.py:

import other_function

def function():
    doStuff()
    other_function()
    return

in __init__.py

from .function import function

in my test.py

from django.test import TestCase
from mock import patch
from my_module import function

class Test(TestCase):

    @patch('my_module.function.other_function')
    def function_test(self, mock_other_function):
         function()

When I run this I got a AttributeError:

<@task: my_module.function.function of project:0x7fed6b4fc198> does not have the attribute 'other_function'

Which means that I am trying to patch the function "function" instead of the module "function". I don't know how to make it understand that I want to patch the module.

I would also like to avoid renaming my module or function.

Any ideas?

[Edit] You can find an example at https://github.com/vthorey/example_mock run

python manage.py test

@HaykDavtyan Nope. You can upvote the question if you want to increase visibility ;) — v.thorey
– v.thorey, Commented Feb 10, 2017 at 14:11

Henry Heath · Accepted Answer · 2018-03-23 14:46:21Z

3

You could make the module available under a different name in __init__.py:

from . import function as function_module
from .function import function

Then you can do the following in test.py:

from django.test import TestCase
from mock import patch
from my_module import function

class Test(TestCase):

    @patch('my_module.function_module.other_function')
    def function_test(self, mock_other_function):
         function()

I do not think this is a particularly elegant solution - the code is not very clear to a casual reader.

edited Mar 23, 2018 at 14:46

answered Nov 9, 2016 at 18:15

Henry Heath

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4 Comments

v.thorey Over a year ago

thanks for the feedback, I was using a string. I edited the question!

Henry Heath Over a year ago

Can you provide an example that actually runs and hits the error? I used the requests package as other_function and my code ran fine

v.thorey Over a year ago

github.com/vthorey/example_mock you can run python manage.py test to get the error

Naveen Over a year ago

@v.thorey i'm kinda stuck in a similar situation. I dont have anything inside my init.py file. Does adding -> "from . import function as function_module" fix the issue ? or is there an alternate work around ?

v.thorey · Accepted Answer · 2024-03-18 11:12:34Z

1

7 years later I faced the same issue and found a thread that proposes a solution here:

How to mock a function called in a function inside a module with the same name?

answered Mar 18, 2024 at 11:12

v.thorey

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