A storybook addon to mock fetch/XHR request

Lightweight Jest compatible spy implementation

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

Auto mock all localstorage and sessionstorage APIs for your Jest tests

Simple, intuitive mocking of Node.js modules.

fetch mock for vitest

Custom Jest matchers for AWS SDK v3 Client mock

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

Mocks node.js http.ServerResponse. See also `mock-req`.

Mock http requests made using fetch

Mock JSON Server

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

json mock

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

Nodejs library to mock express http response

🌗 A module used to mock canvas in Vitest.

JSON mock data generator

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Mock websockets and assert complex websocket interactions with Jest

A small, test-only mock OIDC authorization server