Error constructor for test and validation frameworks that implements standardized AssertionError specification.
Format errors to display a diff between the actual and expected
Allow parsing of the module assertion attributes in the import statement
Support for import assertions in acorn
Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.
Extra assertions on top of node's assert module
minimalistic-assert ===
String validation and sanitization
Yet another JavaScript assertion/invariant library.
TypeScript implementation of invariant(condition, message)
A little library for asserting types and values, with zero dependencies.
Featherweight assert module
typesafe assertion library for TypeScript 3.7+
assertion renderer for power-assert context
Adaptation of react-addons-shallow-compare, for independent usage
TypeScript definitions for http-assert
Helper function for exhaustive checks of discriminated unions in TypeScript
Next-gen browser and mobile automation test framework for Node.js
Type assertions aka less-broken `typeof`
Extends Chai with assertions about promises.
JavaScript Testing utilities for React
JavaScript Testing utilities for React
Extends Chai with assertions for the Sinon.JS mocking framework.
JavaScript Testing utilities for React
Detect native Symbol.toStringTag support.
Test if an object has a specified property.
Detect native Symbol support.
Test if a value is a string.
WebdriverIO Assertion Library
JavaScript Testing utilities for React