end-to-end test Grafana plugins with ease.

jQuery matchers and fixture loader for Jasmine framework

Testing utilities for @hex-di/guard — memory adapters, fixtures, conformance suites, and custom matchers

Structural matching for JavaScript

A Karma plugin - Additional matchers for the Jasmine BDD JavaScript testing library.

Jest custom matchers for AWS Lambda testing — extends expect with serverless-specific assertions

The playwright-expect is an assertion library for TypeScript and JavaScript intended for use with a test runner such as Jest or Playwright Test.

Run real React Native tests under Vitest. One install, zero config.

Mock websockets and assert complex websocket interactions with Vitest

Custom matchers for Jest's expect to help test Request/Response instances

Generic HTTP request library for node, browsers and workers

Add a set of custom matchers for Immutable related checks.

Zero-config breadcrumbs from your route config. Progressive loading, custom matchers, i18n, collapsible overflow, and adapters for React Router, Next.js, and TanStack Router.

Various matchers for jasmine2

QR code decode fixture and custom matchers for Playwright

JSON schema matcher for jest

Hardhat utils for testing

A library for expressing filter predicates and evaluating them against values

Custom Jest matchers for projects using using fp-ts and io-ts

Matchers for JavaScript & TypeScript codemods.