unittest-mocker
Inspired by the pytest-mock, but written from scratch for using with unittest and convenient tool - patch_class
Installation
pip install unittest-mocker
Usage
General mocker
@activate_mocker
def test_create_client(self, mocker: Mocker):
post_mock = mocker.patch('requests.post')
post_mock.return_value.status_code = 200
post_mock.return_value.json.return_value = {'msg': done}
send_clients_to_crm()
post_mock.assert_called_once_with(...)
or you can put the mocking logic in a separate method:
def mock_post(mocker, status):
response = requests.Response()
response.status_code = status
response.headers = {'Location': '...'}
response._content = 'some content'
return mocker.patch('requests.post', return_value=response)
@activate_mocker
def test_upload_post_success(mocker):
mocked_post = mock_post(mocker, 201)
...
@activate_mocker
def test_upload_post_error(mocker):
mocked_post = mock_post(mocker, 500)
...
Details
mocker.patch under the hood calls unittest.mock.patch So you can apply any arguments of the standard mock library
The same with mocker.patch.object. It has the same parameters asunittest.mock.patch.object
Method patch_class
Basic usage:
from unittest_mocker import activate_mocker, Mocker
from api import ApiClient
@activate_mocker
def test_api_client(self, mocker: Mocker):
client_mock = mocker.patch_class('api.ApiClient')
ApiClient(url='example.com')(command='start')
client_mock.assert_initialized_with(url='example.com')
client_mock.mocks['__call__'].assert_called_once_with(command='start')
Syntax
# Variant 1
mocker.patch_class(target: str, methods=Optional[list[str]])
# Example:
mock = mocker.patch_class('some_module.SomeClass', methods=['method_1', 'method_2'])
# Variant 2
mocker.patch_class.object(target: Union[module, class], attribute: str, methods=Optional[list[str]])
# Example:
import some_module
mock = mocker.patch_class(some_module, 'SomeClass', methods=['method_1', 'method_2'])
All mocked methods are stored in mock.mocks dictionary and can be accessed:
mock.mocks['__init__'].assert_called_once_with(...)
patch_class always patches class's __init__ method.
Also, methods parameter also defaults to [__call__]. So that's correct:
mock = mocker.patch_class('some_module.SomeClass')
...
mock.mocks['__call__'].assert_called_once_with(...)
Helper assert_initialized_with
mock.assert_initialized_with() is just shortcut for mock.mocks['__init__'].assert_called_once_with()
14 Dec 6, 2022
1 Nov 17, 2022
12 Dec 26, 2022
3.2k Dec 31, 2022
3.8k Jan 3, 2023
909 Dec 15, 2022
7.8k Jan 2, 2023
19 Sep 10, 2022
74 Dec 31, 2022
14 Jan 03, 2023
4 Dec 11, 2019
4 Nov 07, 2022
270 Dec 20, 2022
0 Oct 17, 2021
2.1k Dec 31, 2022
745 Dec 28, 2022
4 Mar 30, 2022
14.9k Jan 07, 2023
997 Jan 06, 2023
3 Dec 12, 2022
2 Nov 21, 2021
56 Dec 23, 2022
1.2k Jan 03, 2023
3.5k Jan 04, 2023
3 May 31, 2022
3 Jan 18, 2022
3 Sep 01, 2022