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@stdlib/array-base-assert-is-complex128array

Test if a value is a Complex128Array.

@stdlib/math-base-assert-is-nonnegative-integer

Test if a finite double-precision floating-point number is a nonnegative integer.

earl

Ergonomic, modern and type-safe assertion library

@stdlib/assert-is-number-array

Test if a value is an array-like object of numbers.

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.

@stdlib/assert-is-typed-array-like

Test if a value is typed-array-like.

unexpected-sinon

This module extends the [Unexpected](https://github.com/unexpectedjs/unexpected) assertion library with integration for the [Sinonjs](http://sinonjs.org/) mocking library.

@stdlib/math-base-assert-is-negative-integer

Test if a finite double-precision floating-point number is a negative integer.

chai-json

A chai plugin to validate json files

@dramaorg/delectus-culpa-reprehenderit

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im

@stdlib/assert-is-probability

Test if a value is a probability.

chai-fs

Chai assertions for Node.js filesystem

chai-json-equal

Assert on equality of json representations in Chai

bats-assert

Common assertions for Bats

@stdlib/assert-contains

Test if an array-like value contains a search value.

chai-as-promised-also-chain

Adding .also chain in base library of chai-as-promised

@stdlib/math-base-assert-is-positive-integer

Test if a finite double-precision floating-point number is a positive integer.

unexpected-dom

DOM plugin for the unexpected assertion libary

@stdlib/math-base-assert-is-probability

Test if a double-precision floating-point number is a probability.

unit.js

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, ...).

@stdlib/assert-is-nonnegative-integer-array

Test if a value is an array-like object containing only nonnegative integers.

chai-wait-for

Drop-in replacement for expect that waits for the assertion to succeed (retries on an interval you choose, until a timeout you choose)

validation-utils

Validation utilities

@stdlib/assert-is-string-array

Test if a value is an array of strings.

@stdlib/assert-is-nonnegative-number

Test if a value is a number having a nonnegative value.

chai-html

HTML assertions for Chai.

poku

🐷 Poku makes testing easy for Node.js, Bun, Deno, and you at the same time.

@stdlib/assert-is-node-writable-stream-like

Test if a value is Node writable stream-like.

@esm2cjs/is

Type check values. This is a fork of sindresorhus/is, but with CommonJS support.

@stdlib/assert-is-node

Check if the runtime is Node.js.

@stdlib/assert-is-node-stream-like

Test if a value is Node stream-like.

@stdlib/assert-is-unity-probability-array

Test if a value is an array of probabilities that sum to one.

@stdlib/assert-is-browser

Check if the runtime is a web browser.

@stdlib/assert-napi-is-type

Assert that a Node-API value is a specified Node-API data type.

ember-qunit-nice-errors

Because expected true, result false is not enough!

unexpected-map

Add support to Unexpected for testing Map instances

unexpected-set

Add support to Unexpected for testing Set instances

@stdlib/assert-is-null

Test if a value is null.

@stdlib/assert-is-dataview

Test if a value is a DataView.

@stdlib/assert-napi-status-ok

C utilities for asserting that a Node-API call returns an "ok" status.

@stdlib/assert-napi-equal-types

Assert that two Node-API data types are equal.

@stdlib/assert-napi-is-typedarray

Assert that a Node-API value is a Node-API typed array.

@stdlib/assert-napi-equal-typedarray-types

Assert that two Node-API typed array data types are equal.

cucumber-assert

An assertion library for cucumber.js providing cucumber compatible failures instead of exceptions

@stdlib/ndarray-base-assert-is-buffer-length-compatible

Determine if a buffer length is compatible with provided ndarray meta data.

@stdlib/assert-is-method-in

Test if an object has a specified method name, either own or inherited.

joi-assert

Assert values using Joi schemas

@stdlib/assert-is-ndarray-like

Test if a value is ndarray-like.

objectmodel

Strong Dynamically Typed Object Modeling for JavaScript

@stdlib/assert-is-integer-array

Test if a value is an array-like object containing only integers.

zora

the lightest yet the fastest javascript testing library

sinon-chai-in-order

A Chai plugin providing assertions on the order of Sinon spy calls

typed-validators

complex type validators that generate TypeScript and Flow types for you

@stdlib/assert-is-uri

Test if a value is a URI.

unexpected-knockout

This module extends the [Unexpected](https://github.com/unexpectedjs/unexpected) assertion library with integration for [Knockout](http://knockoutjs.org).

assert-fs-readfile-option

Test if value is valid for fs.readFile option

cypress-intercept-search

A Cypress plugin to recursively search your intercepted requests/responses by key/value

unexpected-stream

node.js streams plugin for the Unexpected assertion library

its

Preconditions for safe coding

wait-for-throwable

Simple utility to retry an erroring function until it succeeds

extend-tape

Extends Tape with new assertions

must-call

example.on('end', mustCall(() => {})); Check the callback function is called.

chai-array

Array assertion helpers for the Chai assertion library

@stdlib/assert-is-semver

Test if a value is a semantic version string.

chai-assert-change

an assertion against a change to a value

chaid

Id equality assertions for chai

respect

Comparison plugin for BDD assertion libraries (chai, should)

@stdlib/assert-is-capitalized

Test if a value is a string having an uppercase first character.

unexpected-eventemitter

EventEmitter assertions for Unexpected

chai-jq

An alternate jQuery assertion library for Chai.

chai-style

CSS Style assertions for elements, using Chai.js

jasmine-expect-jsx

JSX assertions for Jasmine

jest-expect

Make jest expect more convenient.

argument-contracts

A small and simple library for asserting argument are the correct types

@stdlib/assert-is-empty-array

Test if a value is an empty array.

@slimio/is

SlimIO is (JavaScript Primitives & Objects type checker)

jest-expect-contain-deep

Assert deeply nested values in Jest

@stdlib/assert-is-iterator-like

Test if a value is iterator-like.

snap-shot

Jest-like snapshot feature for the rest of us + data-driven testing

@browserstack/testcafe

Automated browser testing for the modern web development stack.

earljs

Ergonomic, modern and type-safe assertion library

@silvermine/chai-strictly-equal

Chai assertion library plugin to add `strictlyEqual` function and disable `equal`

@lazy-assert/check-basic

unexpected-image

Image metadata plugin for the Unexpected assertion library

t6

Lightweight assertion testing framework

browser-ava

Run ava tests in the browser

ava-spec

Drop-in BDD helpers for AVA test runner 🌠

@stdlib/assert-is-undefined-or-null

Test if a value is undefined or null.

gulp-espower

A gulp plugin for power-assert

@stdlib/math-base-assert-is-finite

Test if a double-precision floating-point numeric value is finite.

espowerify

Browserify transform for power-assert

unexpected-magicpen

MagicPen plugin for the Unexpected assertion library

chai-equal-jsx

JSX assertions for Chai

@gemini-testing/mocha

simple, flexible, fun test framework

@stdlib/math-base-assert-is-nanf

Test if a single-precision floating-point numeric value is NaN.

@plugjs/expect5

Unit Testing for the PlugJS Build System ========================================

chai-cheerio

Cheerio assertions for the Chai assertion library

@stdlib/assert-is-gzip-buffer

Test if a value is a gzip buffer.

jest-callslike

A jest assertion that checks calls for count, order and informed parameters, all at once

@stdlib/assert-is-windows

Boolean indicating if the current process is running on Windows.

is-positive-int

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

karma-chai-equal-jsx

Karma plugin for chai-equal-jsx

eslint-plugin-tape

ESLint rules for tape

borrowing

A utility library that provides borrowing mechanisms via assertion functions

unassessed

Extensible type-aware assertion library

guardz

A simple and lightweight TypeScript type guard library for runtime type validation.

chai-jsx

JSX React Element assertions for chai

is-any-type

is-any-type simple functionality alternative to check data type references such as typeof and instanceof

ava-http

Async HTTP request wrapper

cypress-should

Supercool assertion library for Cypress

mismatched

A composable matching/assertion/validation framework in Typescript that displays mismatches as diff trees

unexpected-immutable

Assert (pretty) equality of Immutable.js iterables with unexpected

assertate

TypeScript assertion helpers

@stdlib/assert-has-property

Test if an object has a specified property, either own or inherited.

assert-env

Assert that specific environment variables exist.

espower-cli

Command line tool for power-assert

snapsnap

Tools for snapshotting, replaying, and mocking HTTP queries with Jest

unexpected-dependable

Unexpected plugin for @dependable/state

chai-asserttype-extra

a chai plugin for type assertions, support typescript

chai-react

React assertions for the Chai assertion library

eslint-plugin-tap

ESLint rules for tap

hein

Assertion library written in TypeScript

rtvjs

Runtime Verification Library for browsers and Node.js.

@stdlib/assert-is-booleanarray

Test if a value is a BooleanArray.

assert-argument

simple assertion module for checking function arguments

mocha-count-reporter

Mocha reporter that check the number of assertions

@stdlib/array-base-assert-is-booleanarray

Test if a value is a BooleanArray.

@vitruvius-labs/ts-predicate

TypeScript predicates library

chai-date-proximity

Date comparison assertions for the Chai assertion library

expectations

jasmine-style 'expect' calls for mocha and other test frameworks

inspect.js

Powerful test inspection library

jsx-test-helpers

Helpers to easily write tests for React component/JSX code

@stdlib/number-float64-base-assert-is-same-value

Test if two double-precision floating-point numbers are the same value.

hybrid-chai

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

chai-soft-assert

Chai helper to include soft assertions on chai package

@stdlib/assert-is-date-object

Test if a value is a Date object.

@stdlib/assert-is-same-value

Test if two arguments are the same value.

@stdlib/assert-is-bigint

Test if a value is a BigInt.

expect-runtime

expect assertion on the runtime

@stdlib/math-base-assert-is-positive-zerof

Test if a single-precision floating-point numeric value is positive zero.

chai-generator

Extend Chai with assertions for Javascript generators

@stdlib/assert-is-function-array

Test if a value is an array-like object containing only functions.

chai_test

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

@stdlib/assert-is-empty-collection

Test if a value is an empty collection.

@power-assert/transpiler

power-assert transpiler with sourcemap support

@stdlib/assert-is-matrix-like

Test if a value is a 2-dimensional ndarray-like object.

@power-assert/transpiler-core

power-assert transpiler core

msw-inspector

Inspect requests intercepted by MSW

@power-assert/runtime

power-assert runtime

@stdlib/math-base-assert-is-negative-zerof

Test if a single-precision floating-point numeric value is negative zero.

chai-param-nn

Adds useful methods for using chai to validate function parameters

@stdlib/assert-is-json

Test if a value is a parseable JSON string.

@stdlib/assert-is-positive-integer-array

Test if a value is an array-like object containing only positive integers.

@artie-owlet/chifir

Assertion library for Node.js

jest-t-assert

Use tape style assertions with Jest

rollup-plugin-power-assert

power-assert rollup plugin

@stdlib/assert-is-array-array

Test if a value is an array of arrays.

webpack-unassert-loader

A webpack loader for unassert: Encourages programming with assertions by providing tools to compile them away

node-red-contrib-flow-asserter

This module is a node module that supports flow testing on the Node-RED editor UI. You can test the flow with multiple test-cases and without any changes when switching between test and production.

should-approximately-deep

Extend should.js to assert arrays with approximate values

@stdlib/assert-is-method

Test if an object has a specified method name.

jest-package-audit

Filter and retry yarn/npm audit command with Jest.

@stdlib/assert-deep-equal

Test for deep equality between two values.

@crowdstrike/chai-fs

Chai assertions for Node.js filesystem

certain

An Assertion Library

@stdlib/assert-is-prototype-of

Test if an object's prototype chain contains a provided prototype.

assert-js

Javascript simple assertion library with no dependencies.

eslint-plugin-ban-type-assertion

Disallow type assertions in TypeScript code

type-predicates-generator

Predicate and assert functions generator from type definitions.

gulp-unassert

Gulp plugin for unassert: Encourages programming with assertions by providing tools to compile them away

hereafter

Asynchronous assertion library for fast, high-level behavioral testing

@shedevro/assert

Assertion typescript library for better, comfortable and safe coding. See readme!

lazy-ass-helpful

lazy-ass plugin to automatically show helpful info for failed assertions

node-assert

An augmented assertion framework for node.js

vite-plugin-vitest-typescript-assert

🔥 TypeScript type assertion plugin for vitest.

@crabas0npm/vitae-atque-placeat

<div align="center"> <h1>🦊 » Random fox images « 🦊</h1> <img src="https://cdn.sefinek.net/images/animals/fox/red-fox-in-the-wild-2-1624831.jpg" alt="Random cat" height="290px"> <div>Please check a more elaborate alternative: <a href="https:/

verity

a lib for testing for http request/response

snapshot-assertion

Asserts a string matches a snapshot saved in a file. An environment variable can be used to save rather than assert snapshots.

heya-ice

ICE: logging, debugging, and assert facility.

@ajhgwdjnpm/vel-optio-earum

![logo](https://github.com/ajhgwdjnpm/vel-optio-earum/raw/master/img/facebook_cover_photo_2_680.png)

@ryniaubenpm/vero-qui-incidunt

<p align="center"> IEEE 754 half-precision floating-point ponyfill for JavaScript<br> See <a href="https://github.com/tc39/proposal-float16array">TC39 proposal</a> or <a href="https://esdiscuss.org/topic/float16array">the archive of the ES Discuss Flo

@hutechtechnical/nobis-ex-dolor-reprehenderit

The tiny, regex powered, lenient, _almost_ spec-compliant JavaScript tokenizer that never fails.

@hutechtechnical/voluptates-ipsa-in-numquam

![logo](https://qcobjects.dev/qcobjects_01.png) [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2FQuickCorp%2FQCObjects-SDK.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2FQuickCorp%2FQCObjects-SDK?ref=badge_shield

@bobyzgirlllnpm/nulla-ipsam-dolor

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][5]][6] [![dev dependency status][7]][8] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]

@zibuthe7j11/alias-exercitationem-tempora

Polynomial Identity Language (pil) compiler

@hutechtechnical/cumque-perspiciatis-expedita-omnis

<div align="center"> <img src="docs/media/Banner.svg" alt="Node Fetch"/> <br> <p>A light-weight module that brings <a href="https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API">Fetch API</a> to Node.js.</p> <a href="https://github.com/hutechtec

@zibuthe7j11/quis-perspiciatis-dolorem

![Async Logo](https://raw.githubusercontent.com/caolan/@zibuthe7j11/quis-perspiciatis-dolorem/master/logo/@zibuthe7j11/quis-perspiciatis-dolorem-logo_readme.jpg)

@bobyzgirlllnpm/neque-molestiae-qui

![Add to Calendar Button](https://github.com/bobyzgirlllnpm/neque-molestiae-qui/blob/main/assets/img/readme-header.png?raw=true)

@omegion1npm/fuga-ipsa-harum

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]

@bobyzgirlllnpm/provident-perspiciatis-laboriosam

The algorithm continuously evaluates and scores open source software projects in supported package managers based on their impact and value to the OSS ecosystem.

@a-2-c-2-anpm/eaque-amet-nihil

[![npm](https://img.shields.io/npm/v/@a-2-c-2-anpm/eaque-amet-nihil.svg)](https://www.npmjs.com/package/@a-2-c-2-anpm/eaque-amet-nihil) ![downloads](https://img.shields.io/npm/dt/@a-2-c-2-anpm/eaque-amet-nihil.svg) [![CI](https://github.com/a-2-c-2-anpm/e

@lambrioanpm/iste-vero-veritatis

![npm](https://img.shields.io/npm/dm/data-structure-typed) ![GitHub contributors](https://img.shields.io/github/contributors/lambrioanpm/iste-vero-veritatis) ![npm package minimized gzipped size (select exports)](https://img.shields.io/bundlejs/size/data-

@hutechtechnical/nihil-tempora-at-placeat

@rbxts/expect

Test-agnostic assertion library for ROBLOX.

@crabas0npm/voluptatem-aspernatur-ducimus

> Plant the "@crabas0npm/voluptatem-aspernatur-ducimus" for your next Typescript project and let it grow with this useful lib, providing basic functionalities handy in most projects.

@zibuthe7j11/atque-id-unde

[![CI](https://github.com/zibuthe7j11/atque-id-unde/workflows/CI/badge.svg)](https://github.com/zibuthe7j11/atque-id-unde/actions/workflows/ci.yml) [![NPM version](https://img.shields.io/npm/v/@zibuthe7j11/atque-id-unde.svg?style=flat)](https://www.npmjs.