Assertion Packages

Chai plugin for Mugshot visual testing lib

Deep, flexible comparison library for JavaScript

Comppass is a lightweight node module which provide basic functionality for comparing objects

deepEqual assertion with pretty diff

A super lightweight assertion library

Futuristic test runner 🚀

a simple javascript type checker and assertion library

Sometymes you need types and assertions when organizing bigger application. Addon provides extensions to assert types for computed properties and function parameters in runtime.

A drop-in replacement for `envc` that also verifies specific environment variables are set.

Drop-in replacement for node's assert module using Babel.

A date comparison assertion extension for node-tap

Chai.js Assertions for Tape

TestManager - manages test results and generates full traceability reports.

Small TDD lib for node

A simple utility for declaratively validating any Javascript object.

Type check values: `is.string('🦄') //=> true`

Validate if a value is a positive integer between 0 & Number.MAX_SAFE_INTEGER

The smallest possible assertion library with 0 extra features

Base class for easily creating meaningful and quiet by default Error classes with sane defaults and assertion in mind.

a simple javascript type checker & assertion library