Mocking

**Note:** More details on user side API can be found in [Jest documentation](https://jestjs.io/docs/mock-function-api).

Delightful JavaScript Testing.

Delightful JavaScript Testing.

Delightful JavaScript Testing.

A response-like object for mocking a Node.js HTTP response stream

In-memory file-system with Node's fs API.

an identity object using ES6 proxies

JavaScript test spies, stubs and mocks.

Cypress is a next generation front end testing tool built for the modern web

Fake XHR and server

HTTP server mocking and expectations library for Node.js

Seamless REST/GraphQL API mocking library for browser and Node.js.

Transform into a string with random capitalization applied

Low-level HTTP/HTTPS/XHR/fetch request interception library.

> minimal fork of nanospy, with more features 🕵🏻‍♂️

Mock a canvas in your jest tests.

A set of utils for faster development of GraphQL tools

A JavaScript mock Date object that can be used to change when "now" is.

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

Axios adapter that allows to easily mock requests

fetch mock for jest

Event Mocks is a simple library designed to generate simple AWS events for testing and automation purposes.

Extends Chai with assertions for the Sinon.JS mocking framework.

Mock http requests made using fetch (or isomorphic-fetch)

A mock abstract-leveldown implementation that queues operations while a real abstract-leveldown instance is being opened

Type safe mocking extensions for jest

TypeScript definitions for Redux Mock Store

Javascript mocking library for websockets and socket.io

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

Proxies nodejs require in order to allow overriding dependencies during testing.

Mock 'http' objects for testing Express routing functions

Simple, intuitive mocking of Node.js modules.

MongoDB Server for testing (core package, without autodownload). The server will allow you to connect your favourite ODM or client library to the MongoDB Server and run parallel integration tests isolated from each other.

MongoDB Server for testing (auto-download latest version). The server will allow you to connect your favourite ODM or client library to the MongoDB Server and run parallel integration tests isolated from each other.

Auto mock all localstorage and sessionstorage APIs for your Jest tests

Easy and powerful mocking of AWS SDK v3 Clients

Functions to mock the JavaScript aws-sdk

A JavaScript library to mock the local timezone.

Mock API requests in Storybook with Mock Service Worker.

Easy dependency injection for node.js unit testing

Mock websockets and assert complex websocket interactions with Jest

Utility for mocking XMLHttpRequest.

Mock implementation of the Next.js Router

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

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

An Angular testing library for creating mock services, components, directives, pipes and modules in unit tests. It provides shallow rendering, precise stubs to fake child dependencies. ng-mocks works with Angular 5 6 7 8 9 10 11 12 13 14 15 16, jasmine an

Get a full fake REST API with zero coding in less than 30 seconds

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

Low-level HTTP/HTTPS/XHR request interception library for NodeJS

TypeScript definitions for fetch-mock