GitHub - blimmer/jest-circleci-orb: This orb makes it easier to run jest tests in your CircleCI environment. A primary benefit is automatically restoring the jest cache for faster subsequent test runs.
Beginners Guide to Node.js Continuous Integration - DEV Community
A guide to test splitting | CircleCI
CircleCI Part 2: Unit Testing with Jest - YouTube
How to run Jest tests in parallel on Circle CI to fix slow tests and get faster CI builds