What is the importance of replay testing in Temporal?

Replay testing ensures that changes to workflow code do not break determinism, which is critical for allowing the Temporal server to reconstruct workflow state from history.

How does time-skipping benefit Temporal testing?

Time-skipping allows tests to skip idle periods in workflows, enabling month-long processes to execute in milliseconds without waiting for real-world timers.

What is the recommended test coverage for Temporal workflows?

Temporal best practices recommend at least 80% logic coverage for both workflows and activities to ensure reliability in distributed environments.

When should I use Activity mocking?

Activities should be mocked during integration tests to isolate workflow logic from external side effects like database writes, API calls, or third-party services.

Temporal Python Testing

Name: Temporal Python Testing
Author: HermeticOrmus

byHermeticOrmus

0•

Security & Testing

Simplifies testing Temporal workflows and activities in Python using time-skipping, mocking, and determinism validation.

This skill provides comprehensive strategies and resources for testing Temporal workflows using the Python SDK and pytest. It guides developers through unit testing with time-skipping for fast execution of long-running processes, integration testing with mocked activities to isolate logic, and replay testing to ensure workflow determinism. Designed for developers building robust distributed systems, it includes ready-to-use pytest fixtures, local development setup guides, and best practices for achieving high test coverage in production-grade Temporal applications.

Key Features

01Comprehensive guides for local Temporal server setup and CI/CD integration

020 GitHub stars

03Pre-configured pytest fixtures for rapid unit and integration test development

04Activity mocking strategies to isolate workflow logic from external dependencies

05Replay testing tools to validate determinism against production histories

06Advanced time-skipping for testing month-long workflows in seconds

Use Cases

01Testing complex, long-running business processes with immediate feedback

02Verifying workflow determinism before deploying logic changes to production

03Setting up automated testing suites with 80%+ coverage for Temporal applications

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hermeticormus/hermetic-academy temporal-python-testing

For use in Claude.ai and ChatGPT

Download Skill