chai

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

v5.1.2 URL: https://unpkg.com/chai@5.1.2/chai.js

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test assertion assert testing chai

@sindresorhus/is

Type check values

v7.0.1 URL: https://unpkg.com/@sindresorhus/is@7.0.1/index.js

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type types is check checking validate validation utility util typeof instanceof object assert assertion test kind primitive verify compare typescript typeguards types

mocha

simple, flexible, fun test framework

v10.8.2 URL: https://unpkg.com/mocha@10.8.2/index.js

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mocha test bdd tdd tap testing chai assertion ava jest tape jasmine karma

assertion-error

Error constructor for test and validation frameworks that implements standardized AssertionError specification.

v2.0.1 URL: https://unpkg.com/assertion-error@2.0.1/index.js

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test assertion assertion-error

ow

Function argument validation for humans

v2.0.0 URL: https://unpkg.com/ow@2.0.0/index.js

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type types check checking guard guards assert assertion predicate predicates is validate validation utility util typeof instanceof object