How to parametrise unit tests for sklearn models Question: I want to create some unit tests to make sure the correct NotImplemented exceptions are thrown for a module I am developing. Is there a way that I could use some dummy data, create and fit multiple sklearn models to feed into the unit tests? I’m …
Hard to understand return_value for Python Mock Class in the following example Question: I had a hard time understanding the choice of using return_value. See the following example # my_module.py def query(connection): cursor = connection.cursor() cursor.execute("SELECT name FROM users WHERE id = 1") return cursor.fetchone()[0] # test_query.py import pytest from unittest.mock import Mock # Import …
I am trying test a function that sorts a nested array of dictionaries buy the key "createdAt" but coming across an attribute error Question: In short I am receiving a list of project_versions_items as a list of dictionaries, using the "CreatedAt" key to sort that list and compare that list to a delete_list (structured as …
How to mock a function which gets executed during the import time? Question: Here the ABC() and obj.print_1() get called during the import time and it prints "making object" and "printed 1" respectively. How can we mock all the three functions, __init__(), print_1(), and print_2()? xyz.py from abc import ABC obj = ABC() obj.print_1() def …
Unit testing + Mocking eBPF programs in python incl emulating kernel to user-space interactions Question: So I need to get some mocking+testing done on a very specific kind of python code: it is an eBPF(Berkely packet filter) program using python, which in essence runs a C program in kernel space through a python script via …
how can i write unit test for function that is making network request without changing it's interface? Question: I read that Unit tests run fast. If they don’t run fast, they aren’t unit tests. A test is not a unit test if 1. It talks to a database. 2. It communicates across a network. 3. …
Python unittests used in a project structure with multiple directories Question: I need to use unittest python library to execute tests about the 3 functions in src/arithmetics.py file. Here is my project structure. . ├── src │ └── arithmetics.py └── test └── lcm ├── __init__.py ├── test_lcm_exception.py └── test_lcm.py src/arithmetics.py def lcm(p, q): p, q …
How to mock a class with nested properties and autospec? Question: I’m wondering if it’s possible to mock a class which contains properties by using patch and autospec? The goal in the example below is to mock (recursively) ClassB. Example: # file: class_c.py class ClassC: def get_default(self) -> list[int]: return [1, 2, 3] def delete(self, …
Mocking os.environ with python unittests Question: I am trying to test a class that handles for me the working directory based on a given parameter. To do so, we are using a class variable to map them. When a specific value is passed, the path is retrieved from the environment variables (See baz in the …
Python unable to mock function call from test class Question: I am trying to mock a bigtable call in my unit test by declaring fixtures like so: @pytest.fixture() def bigtableMock(): bigtableMock = Mock(spec=google.cloud.bigtable.table.Table) yield bigtableMock @pytest.fixture() def bigtableInstanceMock(bigtableMock): bigtableInstanceMock = Mock(spec=google.cloud.bigtable.instance.Instance) bigtableInstanceMockAttrs = {‘table’: bigtableMock} bigtableInstanceMock.configure_mock(**bigtableInstanceMockAttrs) yield bigtableInstanceMock @pytest.fixture() def myDao(bigtableInstanceMock): yield MyDao(bigtableInstanceMock) I mock …
