Temporal Python Testing

If you're testing Temporal workflows in Python, this gives you a structured approach using pytest with time-skipping so month-long workflows run in seconds. It covers the three main testing patterns: unit tests with WorkflowEnvironment, integration tests with mocked activities, and replay testing for determinism validation. The progressive disclosure setup is smart, you load specific resources only when you need them instead of getting hit with everything at once. It's aimed at getting you to 80% coverage without drowning in end-to-end tests. The quick start examples are actually runnable, which is refreshing.