Test-Driven Development (TDD) in Python #6 - Scaling TDD with Stubs & Mocks

Jason Gorman demonstrates how we can use stubs and mocks to test-drive code that has external dependencies or changing data, and how we can drive complex, multi-layered architectures from the outside-in using stubs and mocks Previous videos in this series https://www.youtube.com/playlist?list=PL1tIFPlmF4ykpjOJKVDwYkpBIeXsoak6S