Parallelize Tests for Efficient CI/CD Pipelines

Optimizing Test Efficiency: Harnessing Jest, GitHub Actions, and Parallelization for Lightning-Fast Test Suites

Created by: David Armendáriz
Mathematician & Software Developer

What Will I Learn?

• A technique to parallelize tests using parallel jobs in Github Actions with Jest.
• Learn how to use this technique with other testing frameworks and other CI platforms.
• Learn the pros and cons of the technique and how to further improve the workflow.
• Learn jq (a lightweight and flexible command-line JSON processor)

Requirements

• Basic knowledge of Javascript
• Basic knowledge of testing
• Basic knowledge of Github Actions
• Basic knowledge of git
• Linux, Mac or Windows Subsystem for Linux (WSL) is ALWAYS preferred (optional)
• NVM (Node Version Manager) (optional)

Target audience

• Software Developers
• DevOps