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@types/chai-as-promised

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@types/chai-as-promised

TypeScript definitions for chai-as-promised


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What is @types/chai-as-promised?

@types/chai-as-promised is a TypeScript type definition package for the chai-as-promised library, which extends Chai with assertions about promises. It allows you to write assertions for promises in a more readable and expressive way.

What are @types/chai-as-promised's main functionalities?

Eventual Fulfillment

This feature allows you to assert that a promise will eventually be fulfilled with a specific value.

const chai = require('chai');
const chaiAsPromised = require('chai-as-promised');
chai.use(chaiAsPromised);
const expect = chai.expect;

const promise = Promise.resolve(42);
expect(promise).to.eventually.equal(42);

Eventual Rejection

This feature allows you to assert that a promise will eventually be rejected with a specific error.

const chai = require('chai');
const chaiAsPromised = require('chai-as-promised');
chai.use(chaiAsPromised);
const expect = chai.expect;

const promise = Promise.reject(new Error('Something went wrong'));
expect(promise).to.be.rejectedWith('Something went wrong');

Combining with Other Chai Assertions

This feature allows you to combine promise assertions with other Chai assertions for more complex validations.

const chai = require('chai');
const chaiAsPromised = require('chai-as-promised');
chai.use(chaiAsPromised);
const expect = chai.expect;

const promise = Promise.resolve({ foo: 'bar' });
expect(promise).to.eventually.have.property('foo').that.equals('bar');

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Package last updated on 24 Sep 2024

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