What are the differences between pytest-mock and unittest?

What are the differences between pytest-mock and unittest?

pytest-mock is a plugin for pytest that simplifies mocking, while unittest is a built-in Python module for testing.

Can you give me an example of how to use pytest-mock?

Sure! You can use mocker.patch to replace a function with a mock during a test. For example:

def test_function(mocker):
    mock = mocker.patch('module.function')
    mock.return_value = 'mocked!'
    assert function() == 'mocked!'

How does unittest handle mocking?

In unittest, you can use unittest.mock to create mocks. For example:

from unittest.mock import patch

def test_function():
    with patch('module.function') as mock:
        mock.return_value = 'mocked!'
        assert function() == 'mocked!'

Which one should I use for my project?

It depends on your needs. If you prefer a simpler syntax and are already using pytest, go with pytest-mock. Otherwise, unittest is a solid choice.