Package Exports

chai-arrays

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (chai-arrays) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

chai-arrays

a simple chai plugin for better array assertions

Installation

npm install chai-arrays

Usage

plug-in

const chai = require('chai');
const assertArrays = require('chai-arrays');
chai.use(assertArrays);

array

Asserts that the type of actual is Array.

expect([1, 2, 3]).to.be.array();
expect('foobar').not.to.be.array();

ofSize

Asserts that the size of actual is equal to expected.

expect([1, 2, 3]).to.be.ofSize(3);
expect([1, 2, 3]).not.to.be.ofSize(5);

equalTo

Asserts that the actual is equal to expected.

expect([1, 2, 3]).to.be.equalTo([1, 2, 3]);
expect([1, 2, 3]).not.to.be.equalTo([1, 2, 5]);

containing

Asserts that the actual is containing the expected element.

expect([1, 2, 3]).to.be.containing(1);
expect([1, 2, 3]).not.to.be.containing(5);

containingAllOf

Asserts that the actual is containing all of the expected elements.

expect([1, 2, 3]).to.be.containingAllOf([1]);
expect([1, 2, 3]).to.be.containingAllOf([1, 3]);
expect([1, 2, 3]).to.be.containingAllOf([1, 2, 3]);

containingAnyOf

Asserts that the actual is containing any of the expected elements.

expect([1, 2, 3]).to.be.containingAnyOf([1]);
expect([1, 2, 3]).to.be.containingAnyOf([6, 7, 3, 5]);
expect([1, 2, 3]).to.be.containingAnyOf([1, 2, 3]);

sorted

Asserts that the actual array is sorted.

expect([1, 2, 3]).to.be.sorted();
expect([1, 2, 4, 3]).not.to.be.sorted();

expect([3, 2, 1]).to.be.sorted((prev, next) => prev < next); // sorting based on the provided function