Assertion Packages

Node.js `assert` as a standalone module

Yet another JavaScript assertion/invariant library.

Babel plugin for protecting against improper use of `t.throws()` in AVA

Assert utility from yeoman

A tiny runtime library for type assertions

ESLint rules for AVA

Chai plugin for JSON Schema v4

DOM assertions for the Chai assertion library using vanilla JavaScript

Shallow deep equal assertion for chai

Power Assert feature instrumentor based on the ECMAScript AST

Power Assert instrumentor from source to source, with source-map

Convert assert to power-assert on ESTree AST

Chai assertion that provides Jest's snapshot testing

jQuery assertions for the Chai assertion library

Power Assert feature instrumentor on the fly

Testing and assertion library with friendly BDD syntax — awesome.must.be.true(). Many expressive matchers and is test runner and framework agnostic. Follows RFC 2119 with its use of MUST. Good and well tested stuff.

Simple, intuitive and flexible unit testing framework for javascript / Node.js (browser and server). Integrates awesome assertions libraries like Must.js, Should.js, Assert of Node.js, Sinon.js and other friendly features (promise, IoC, plugins, ...).

Assert that the name of the current branch of a git repository has a particular value.

Assert a given object is a valid glob option

assertion library