How to use (and where to apply) Python's unittest.mock.patch in your test suites. In this video I show where to patch, and three ways of applying mock.patch: as a decorator, as a context manager, and inline using mock.patch.start() and mock.patch.stop().
Further reading:
Python docs on unittest.mock.patch: https://docs.python.org/3/library/unittest.mock.html#patch
Where to patch: https://docs.python.org/3/library/unittest.mock.html#where-to-patch
