Given an object and a property, replaces a property descriptor (or deletes it), and returns a thunk to restore it.

fetch mock for vitest

Custom Jest matchers for AWS SDK v3 Client mock

webpack Validation Utils

This library emulates ioredis by performing all operations in-memory.

A mock store for testing your redux async action creators and middleware

A lightweight Jest mock for unit testing Express

Data mocker for mongoose schema

Mock http requests made using fetch

A configurable mock file system. You know, for testing.

Mock `window.Date` when run unit test cases with jest. Make tests of `Date` easier.

Generates mock data from zod schema. Powered by @faker-js/faker and randexp.js

Lightweight Jest compatible spy implementation

🌗 A module used to mock canvas in Vitest.

Mock websockets and assert complex websocket interactions with Jest

Create mocks of your GraphQL Schema

The node core libs for in browser usage.

TypeScript definitions for mock-fs

Custom matchers for AWS SDK Client mock to be used in vitest

Mock implementation of the Next.js Router