gocardless/stubby

Pretender is a mock server library for XMLHttpRequest and Fetch, that comes with an express/sinatra style syntax for defining routes and their handlers.

Custom parser for ESLint

browser-side require() the node way

Delightful JavaScript Testing.

Small footprint URL parser that works seamlessly across Node.js and browser environments

A lightweight JavaScript library that matches paths against registered routes.

test infrastructure for a fake XMLHttpRequest object

A public domain JSON Schema validator for JavaScript