unittest.mock — mock object library — Python 3.7.1 documentationSource code: Lib/unittest/mock.py unittest.mock is a library for testing in Python. It allows you to replace parts of your system under test with mock objects and make assertions about how they have been used. unittest.mock provides a core Mock class removing the need to create a host of stubs throughout your test suite. After performing an action, you can make assertions about which methods / att
