Jest - Knowledgize

Jest

Jest is a JavaScript testing framework.

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Jest

Globals

Expect

Mock Functions

The Jest Object

Configuring Jest

Jest CLI Options

afterAll

afterEach

beforeEach

describe

describe.each

describe.only

describe.only.each

describe.skip

describe.skip.each

test

test.each

test.only

test.only.each

beforeAll

test.skip.each

test.todo

expect.extend (matchers)

Async Matchers

Custom Matchers API

this.isNot

this.promise

this.equals (a, b)

this.expand

this.utils

Custom snapshot matchers

expect.string Containing (string)

.not

.toBeFalsy ()

.toBeNull ()

.toBeUndefined ()

.toBeNaN()