pytest-mock is currently the #3 pytest plugin.
pytest-mock is a wrapper around unittest.mock.

In this episode:

• Why the pytest-mock plugin is awesome
• What is mocking, patching, and monkey patching
• What, if any, is the difference between mock, fake, spy, stub.
• Why we might need these in testing
• Some history of mock in Python and how mock became unittest.mock
• From unittest.mock
  • patch.object
  • patch.object with autospec
  • using these as context managers
• pytest-mock:
  • The mocker fixture
  • Cleanup in teardown
  • Using mocker.patch, mocker.spy, and mocker.stub
  • Why it's awesome and why you might want to use it over straight unittest.mock

Links:

• top pytest plugins list
• pytest-mock documentation
• unittest.mock
• Podcast episode discussing unittest.mock with Michael Foord
• monkeypatch

• The Complete pytest course is now a bundle, with each part available separately.
  • pytest Primary Power teaches the super powers of pytest that you need to learn to use pytest effectively.
  • Using pytest with Projects has lots of "when you need it" sections like debugging failed tests, mocking, testing strategy, and CI
  • Then pytest Booster Rockets can help with advanced parametrization and building plugins.
• Whether you need to get started with pytest today, or want to power up your pytest skills, PythonTest has a course for you.