Node.js assertion library on top of the built-in assert module with strict and flexible validation. Much more secure and up to 10 times faster than the original 'node-assert-plus', 80 % less CPU usage and memory consumption.
Extra assertions on top of node's assert module
Type check values
BDD/TDD assertion library for node.js and the browser. Test framework agnostic.
Full implementation of the `printf` family in pure JS.
Do things in development and nothing otherwise
Extends Chai with assertions for the Sinon.JS mocking framework.
Define a data property on an object. Will fall back to assignment in an engine without descriptors.
typesafe assertion library for TypeScript 3.7+
Allow parsing of the module assertion attributes in the import statement
Better assertions for node, reporting the expr, filename, lineno etc
Lazy assertions without performance penalty
TypeScript definitions for assert-plus
Is this specifier a node.js core module?
Synchronous validation of a path existing either as a file or as a directory.
A collection of assertions for test and production code alike.
The assert module from Node.js, for the browser.
Dead simple Object schema validation
Common assertions for Bats
test whether SPDX expressions satisfy licensing criteria
DOM assertions for the Chai assertion library using vanilla JavaScript
base renderer for power-assert context
Rich matchers inspired by Hamcrest. Useful for generating helpful assertion failure messages in tests.
Transform the Import Attributes proposal (`import ... from '...' with { ... }`) to the previous version known as Import Assertions (`import ... from '...' assert { ... }`).