Storybook addon that mocks the JavaScript Date — and opt-in Temporal and Intl.DateTimeFormat — for individual stories.

Adds fetch() mocking to Storybook.js using fetch-mock

Type safe mocking extensions for jest

amplify cli plugin providing local testing

A fully type safe mocking, call verification and import replacement library for jasmine and jest

Intuitive mocking for Typescript class imports

Workers Vitest integration for writing Vitest unit and integration tests that run inside the Workers runtime

Easy and powerful mocking of AWS SDK v3 Clients

The jQuery Mockjax Plugin provides a simple and extremely flexible interface for mocking or simulating ajax requests and responses.

Utility for mocking XMLHttpRequests in the browser or nodejs.

amplify cli plugin providing local testing

Intercept & mock http requests issued by XMLHttpRequest, fetch, nodejs https/http module, axios, jquery, superagent, ky, node-fetch, request, got or any other request libraries by intercepting XMLHttpRequest, fetch and nodejs native requests in low level.


Tooling for testing Inngest functions.

helper for webpack-dev-server for data mocking and proxy

Axios adapter that allows to easily mock requests

Type safe mocking library for TypeScript

a knex mock adapter for simulating a db during testing

Test, mock, intercept and modify Apollo Client's operations — in both browser and unit tests!

Utilities for making testing [NestJS](https://docs.nestjs.com) applications easier.