We recently wrote about unit testing Cloudflare Workers within a mock environment using CloudWorker (a Node.js based mock Cloudflare Worker environment created by Dollar Shave Club's engineering team). See Unit Testing Worker Functions.
Unit Testing Worker Functions
If you were not aware, Cloudflare Workers lets you run Javascript in all 165+ of our Data Centers. We’re delighted to see some of the creative applications of Workers. As the use cases grow in complexity, the need to sanity check your code also grows.