Some examples on how to achieve the same goal with either of both libraries: sinon and jest. Also some of those goals achievable only by one of these tools.

A simple module that displays DOM attributes on mouseover inside a tooltip.

Node filesystem spies and mocks

ShopifyIQ is an e-commerce spy tool to monitor products your competitors scale

Mocka - The complete testing framework for LUA and Nginx

Secretly record audio and video with chromium based browsers.

Mr. Hyde is a Discord selfbot (bot running on your user account) bringing you some usefull features

spy and mock for simple testcase

Complete React application of Numspy API.

Lightweight user session recorder based on JSON

A logger/spy Discord bot

Helper function to create spy object for `jest`, same as `jasmine.createSpyObj`

Fastify plugin to override decorators, plugins and hooks

Google Maps JS API stub to allow unit testing of components and other functionality that depends on it

A script designed to display users' most recent logins directly from WazapWeb.

Tiny wrapper for spying on function calls.

Spy and stub utils for testing

A demo of stubs and spies with CommonJS and ES modules. CommonJS doesn't allow mock, stubs and spies for dependencies called within the same module and ES modules don't allow them for named imports. This repo contains demos of the problem as well as solutions.

Small pretty basic spies for should.js

Transform stream for debugging stream pipelines.