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Questions tagged [magicmock]

MagicMock is a subclass of Mock with default implementations of most of the magic methods.

MagicMock is a subclass of Mock with default implementations of most of the magic methods.

You can use MagicMock without having to configure the magic methods yourself.

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How do you set different attributes for different MagicMock instances in Python?

I'd like to assert that say_name was called with each value in the list name. from unittest.mock import patch class MyClass: def __init__(self, name): self.name = name def say_name(name): print('My name is ' + name) def…
Jacob Beauchamp
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How to set value on MagicMock obj. so that function under test doesn't return MagicMock object

Hey I'm just getting started with unittests and mocks in Python. Trying to test a function that takes a single column dataframe and returns a float after some calculation based on the dataframe values. import unittest from unittest.mock import…
Andrew Parmar
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How can I mock the following python function using MagicMock?

class C: def f(): calls g def g(): # Do something How can I mock g to test f in a testing module which imports class C?
Abhishek Kumar
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Proper checking MagicMock objects in Python unittests

I have this code under test: def to_be_tested(x): return round((x.a + x.b).c()) In my unittest I want to assert that exactly this is done with the passed x and the result returned, so I pass a MagicMock object as x: class…
Alfe
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Mock object used in parent class

I have two classes in separate packages, one of them inherit from the other. I would like to test the child class. So how can I mock the external objects used in the parent class? I am confused in which namespace they reside at this point.
silentnights
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Python unittest test passed in class method is called with

I have a method that takes two inputs a emailer class and a dict of data. def send_email(data, email_client): **** various data checks and formatting ***** response_code = email_client.create_email(recipient=receipient …
user7692855
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Testing methods are called on object created

I'm new to Python so forgive me if this is basic. I have a method under test and in that method, I instantiate an object and call methods on it and want to test that those are called correctly (worth pointing out that this code is pre-existing and…
ediblecode
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Configure return value mock with decorator only

Is there a way to capture the following logic in the patch decorator instead of having to pass the mock into the function: @patch('boto3.client') def test_playing_with_saml(self, boto3_client): boto3_client.return_value.assume_role_with_saml =…
RNikoopour
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How to mock multiple return values in Easymock

I am a python newbie and am trying to mock process.communicate method, but i do not know how to return multiple values from mock. The way i am approaching it is with patch.object(subprocess, 'Popen', new_callable=MagicMock) as process: …
Ankit Dixit
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pytest: Mock returning a mock with specific properties

I found I often use same pattern in tests again and again: mock_get_data = mock.MagicMock() mock_get_data.get_data.return_value = "mocked DB data" mock_db = mock.Mock(spec=DBClass, return_value=mock_get_data) It would be used for testing (with…
George Shuklin
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Python mocking a parameter

I have some code which invokes a HTTP request and I would like to unit test a negative case where it should raise a specific exception for a 404 response. However I am trying to figure out how to mock the parameter so it can raise the HTTPError as a…
Overly Excessive
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When patching 2 objects, second return first patched value

I am writing UT for one of my function where I have to patch 2 objects. @patch('mypackage.models.db_models.MongoClient', return_value={}) @patch('mypackage.models.db_models.GridFS') def test_file_in_db(self, mock_mongoclient, mock_gridfs): …
Nilesh
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Can a Python mock object return the params it was given?

I am testing a Python method which makes an HTTP request to a server. The method looks like this: def do_something(): data = get_data() make_request(data) def make_request(self, data): self.send_response(200) …
user3470960
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Mocking a variable in python

I am trying to mock a variable that represents the a state of a device In this case I have am trying to add a device and I have the following code: if self.network.controller.add_node( secure ) : for i in range( 0, 60 ) : if flagStarted…
Killercode
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Partially mock a method in unittest `setUp`

I am trying to understand the mock/patch framework, but have a problem. Here are my simplified codes: file_a.py class A: def f(self): b = B() b.g() b.h() file_b.py class B: def g(self): return network_requests(...) def…
AoZ
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