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
Next-gen browser and mobile automation test framework for Node.js
Helper function for exhaustive checks of discriminated unions in TypeScript
Type assertions aka less-broken `typeof`
Extends Chai with assertions about promises.
JavaScript Testing utilities for React
JavaScript Testing utilities for React
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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.
JavaScript Testing utilities for React