How to use JestMock method in storybook-root

Best JavaScript code snippet using storybook-root

server-emitter.spec.ts

Source: server-emitter.spec.ts Github

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1import { TEndMessage, TErrorMessage, TFirstMessage, TMessage, TNextMessage } from '@node-socket/​interfaces';2import * as jestMock from 'jest-mock';3import { BehaviorSubject, catchError, finalize, map, of, Subject, take, tap } from 'rxjs';4import { Socket } from 'socket.io';5import { ConnectorsRegistryService, IConnector } from './​connectors-registry';6import { ServerService } from './​server';78describe('Server as emitter', () => {9 let server: ServerService;10 let mockConnectorsRegistryService: ConnectorsRegistryService;11 let echoService: IConnector<any>;12 let getConnectorSpy: jest.SpyInstance<IConnector<any>, [type: string]>;13 beforeEach(() => {14 echoService = {15 onMessage: jest.fn().mockReturnValue(new Subject()),16 };17 mockConnectorsRegistryService = createMockInstance(ConnectorsRegistryService);18 getConnectorSpy = jest.spyOn(mockConnectorsRegistryService, 'getConnector').mockReturnValue(echoService);19 server = new ServerService({}, mockConnectorsRegistryService);20 });21 afterEach(() => {22 jest.clearAllMocks();23 });24 it('Server can send message to connected clients', () => {25 expect.assertions(39);26 const clients = [27 createFakeSocketClient('A'),28 createFakeSocketClient('B'),29 createFakeSocketClient('C'),30 ];31 const firstMessage: TFirstMessage = {32 id: '1',33 content: {34 type: 'first-message',35 subject: 'echo',36 body: 'echo',37 },38 };39 clients.forEach((client) => {40 server.handleFirstMessage(firstMessage, client);41 });42 const subjectSender = new Subject<string>();43 server.sendMessage('echo', subjectSender).pipe(4445 ).subscribe({46 next: (e) => {4748 },49 error: (e) => {5051 },52 complete: () => {5354 },55 });56 subjectSender.next('toto');57 subjectSender.next('titi');58 subjectSender.complete();596061 clients.forEach((client) => { /​/​ 13 expects62 expect(client.emit).toBeCalledTimes(3);63 expect((client.emit as jestMock.Mock<any, any>).mock.calls[0][0]).toBe('first-message');64 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).id).toBe('server_0');65 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.type).toBe('first-message');66 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.subject).toBe('echo');67 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.body).toBe('toto');6869 expect((client.emit as jestMock.Mock<any, any>).mock.calls[1][0]).toBe('next-message');70 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).id).toBe('server_0');71 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.type).toBe('next-message');72 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.body).toBe('titi');7374 expect((client.emit as jestMock.Mock<any, any>).mock.calls[2][0]).toBe('end-message');75 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).id).toBe('server_0');76 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).content.type).toBe('end-message');77 });78 });79 it('Server can send message to specified clients', () => {80 expect.assertions(27);81 const clients = [82 createFakeSocketClient('A'),83 createFakeSocketClient('B'),84 createFakeSocketClient('C'),85 ];86 const firstMessage: TFirstMessage = {87 id: '1',88 content: {89 type: 'first-message',90 subject: 'echo',91 body: 'echo',92 },93 };94 clients.forEach((client) => {95 server.handleFirstMessage(firstMessage, client);96 });97 const subjectSender = new Subject<string>();98 server.sendMessage('echo', subjectSender, of([clients[0].id, clients[2].id])).pipe(99100 ).subscribe({101 next: (e) => {102103 },104 error: (e) => {105106 },107 complete: () => {108109 },110 });111 subjectSender.next('toto');112 subjectSender.next('titi');113 subjectSender.complete();114115116 [clients[0], clients[2]].forEach((client) => { /​/​ 13 expects117 expect(client.emit).toBeCalledTimes(3);118 expect((client.emit as jestMock.Mock<any, any>).mock.calls[0][0]).toBe('first-message');119 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).id).toBe('server_0');120 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.type).toBe('first-message');121 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.subject).toBe('echo');122 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.body).toBe('toto');123124 expect((client.emit as jestMock.Mock<any, any>).mock.calls[1][0]).toBe('next-message');125 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).id).toBe('server_0');126 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.type).toBe('next-message');127 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.body).toBe('titi');128129 expect((client.emit as jestMock.Mock<any, any>).mock.calls[2][0]).toBe('end-message');130 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).id).toBe('server_0');131 expect(((client.emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).content.type).toBe('end-message');132 });133 [clients[1]].forEach((client) => { /​/​ 1 expects134 expect(client.emit).toBeCalledTimes(0);135 });136 });137 it('Server can send message to specified clients and modify them', () => {138 expect.assertions(27);139 const clients = [140 createFakeSocketClient('A'),141 createFakeSocketClient('B'),142 createFakeSocketClient('C'),143 ];144 const firstMessage: TFirstMessage = {145 id: '1',146 content: {147 type: 'first-message',148 subject: 'echo',149 body: 'echo',150 },151 };152 clients.forEach((client) => {153 server.handleFirstMessage(firstMessage, client);154 });155 const subjectSender = new Subject<string>();156 const subjectClients = new BehaviorSubject<string[]>(['A']);157 server.sendMessage('echo', subjectSender, subjectClients).pipe(158159 ).subscribe({160 next: (e) => {161162 },163 error: (e) => {164165 },166 complete: () => {167168 },169 });170 subjectSender.next('toto');171 subjectClients.next(['A', 'B'])172 subjectSender.next('titi');173 subjectClients.next(['B'])174 subjectSender.next('tata');175 subjectSender.complete();176177 /​/​ First client178 {179 expect(clients[0].emit).toBeCalledTimes(3);180 expect((clients[0].emit as jestMock.Mock<any, any>).mock.calls[0][0]).toBe('first-message');181 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).id).toBe('server_0');182 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.type).toBe('first-message');183 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.subject).toBe('echo');184 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.body).toBe('toto');185186 expect((clients[0].emit as jestMock.Mock<any, any>).mock.calls[1][0]).toBe('next-message');187 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).id).toBe('server_0');188 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.type).toBe('next-message');189 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.body).toBe('titi');190191 expect((clients[0].emit as jestMock.Mock<any, any>).mock.calls[2][0]).toBe('end-message');192 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).id).toBe('server_0');193 expect(((clients[0].emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).content.type).toBe('end-message');194 }195196 /​/​ Second client197 {198 expect(clients[1].emit).toBeCalledTimes(3);199 expect((clients[1].emit as jestMock.Mock<any, any>).mock.calls[0][0]).toBe('first-message');200 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).id).toBe('server_0');201 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.type).toBe('first-message');202 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.subject).toBe('echo');203 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[0][1] as TFirstMessage).content.body).toBe('titi');204205 expect((clients[1].emit as jestMock.Mock<any, any>).mock.calls[1][0]).toBe('next-message');206 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).id).toBe('server_0');207 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.type).toBe('next-message');208 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[1][1] as TNextMessage).content.body).toBe('tata');209210 expect((clients[1].emit as jestMock.Mock<any, any>).mock.calls[2][0]).toBe('end-message');211 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).id).toBe('server_0');212 expect(((clients[1].emit as jestMock.Mock<any, any>).mock.calls[2][1] as TEndMessage).content.type).toBe('end-message');213 }214215 /​/​ Third client216 {217 expect(clients[2].emit).toBeCalledTimes(0);218 }219 });220});221function createMockInstance<T>(cl: { new(...args: any[]): T }): T {222 const mocker = new jestMock.ModuleMocker(global);223 const Mock = mocker.generateFromMetadata(mocker.getMetadata(cl));224 return new Mock() as any as T;225}226function createFakeSocketClient(id: string): Socket {227 return {228 id,229 emit: jest.fn(),230 } as any; ...

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browserMocks.js

Source: browserMocks.js Github

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1/​/​ Mock Browser API's which are not supported by JSDOM, e.g. ServiceWorker, LocalStorage2const jestMock = require('jest-mock');3/​**4 * An example how to mock localStorage is given below 👇5 */​6/​*7/​/​ Mocks localStorage8const localStorageMock = (function() {9 let store = {};10 return {11 getItem: (key) => store[key] || null,12 setItem: (key, value) => store[key] = value.toString(),13 clear: () => store = {}14 };15})();16Object.defineProperty(window, 'localStorage', {17 value: localStorageMock18}); */​19Object.defineProperty(global, 'matchMedia', {20 writable: true,21 value: jestMock.fn().mockImplementation((query) => ({22 matches: false,23 media: query,24 onchange: null,25 addListener: jestMock.fn(), /​/​ deprecated26 removeListener: jestMock.fn(), /​/​ deprecated27 addEventListener: jestMock.fn(),28 removeEventListener: jestMock.fn(),29 dispatchEvent: jestMock.fn(),30 })),...

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mocker.js

Source: mocker.js Github

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1const jestMock = require("jest-mock")2function mockRequest() {3 const req = {};4 req.body = jestMock.fn().mockReturnValue(req);5 req.params = jestMock.fn().mockReturnValue(req);6 return req;7}8function mockResponse() {9 const res = {};10 res.send = jestMock.fn().mockReturnValue(res);11 res.status = jestMock.fn().mockReturnValue(res);12 res.json = jestMock.fn().mockReturnValue(res);13 return res;14}15mockRequest();...

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Using AI Code Generation

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1import { withTests } from 'storybook-addon-jest';2import results from '../​.jest-test-results.json';3addDecorator(4 withTests({5 })6);7import { configure } from '@storybook/​react';8import { setOptions } from '@storybook/​addon-options';9import { setConsoleOptions } from '@storybook/​addon-console';10setOptions({

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Using AI Code Generation

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1import {jestMock} from 'storybook-root';2jestMock();3import {jestMock} from 'storybook-root';4jestMock();5import {jestMock} from 'storybook-root';6jestMock();7import {jestMock} from 'storybook-root';8jestMock();9import {jestMock} from 'storybook-root';10jestMock();11import {jestMock} from 'storybook-root';12jestMock();13import {jestMock} from 'storybook-root';14jestMock();15import {jestMock} from 'storybook-root';16jestMock();17import {jestMock} from 'storybook-root';18jestMock();19import {jestMock} from 'storybook-root';20jestMock();21import {jestMock} from 'storybook-root';22jestMock();23import {jestMock} from 'storybook-root';24jestMock();25import {jestMock} from 'storybook-root';26jestMock();27import {jestMock} from 'storybook-root';28jestMock();29import {jestMock} from 'storybook-root';30jestMock();31import {jestMock} from 'storybook-root';32jestMock();33import {jestMock} from 'storybook-root';34jestMock();35import {jestMock} from 'storybook-root';36jestMock();

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Using AI Code Generation

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1import { storybookRoot } from 'jest-mock-storybook';2import { addDecorator } from '@storybook/​react';3import { withKnobs } from '@storybook/​addon-knobs';4import { withA11y } from '@storybook/​addon-a11y';5addDecorator(withA11y);6addDecorator(withKnobs);7storybookRoot(require.context('../​src', true, /​\.stories\.js$/​));8import { configure } from '@storybook/​react';9import { withA11y } from '@storybook/​addon-a11y';10import { withKnobs } from '@storybook/​addon-knobs';11addDecorator(withA11y);12addDecorator(withKnobs);13configure(require.context('../​src', true, /​\.stories\.js$/​), module);14import React from 'react';15import { addDecorator } from '@storybook/​react';16import { withA11y } from '@storybook/​addon-a11y';17import { withKnobs } from '@storybook/​addon-knobs';18import { ThemeProvider } from 'styled-components';19import theme from '../​src/​theme';20addDecorator(withA11y);21addDecorator(withKnobs);22addDecorator((story) => (23 <ThemeProvider theme={theme}>{story()}</​ThemeProvider>24));25const path = require('path');26module.exports = ({ config }) => {27 config.module.rules.push({28 include: path.resolve(__dirname, '../​'),29 });30 return config;31};32module.exports = {33 stories: ['../​src/​**/​*.stories.(js|mdx)'],34 webpackFinal: async (config) => {35 config.module.rules.push({

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Using AI Code Generation

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1import { jestMock } from 'storybook-rootpath';2const mockRequire = require('storybook-rootpath').mockRequire;3const mockImport = require('storybook-rootpath').mockImport;4const mockResolve = require('storybook-rootpath').mockResolve;5const mockResolveSync = require('storybook-rootpath').mockResolveSync;6const mockResolveDir = require('storybook-rootpath').mockResolveDir;7const mockResolveDirSync = require('storybook-rootpath').mockResolveDirSync;8const mockResolveFile = require('storybook-rootpath').mockResolveFile;9const mockResolveFileSync = require('storybook-rootpath').mockResolveFileSync;10const mockResolveModule = require('storybook-rootpath').mockResolveModule;11const mockResolveModuleSync = require('storybook-rootpath').mockResolveModuleSync;12const mockResolveModuleDir = require('storybook-rootpath').mockResolveModuleDir;13const mockResolveModuleDirSync = require('storybook-rootpath').mockResolveModuleDirSync;14const mockResolveModuleFile = require('storybook-rootpath').mockResolveModuleFile;15const mockResolveModuleFileSync = require('storybook-rootpath').mockResolveModuleFileSync;16const mockResolveModuleFileDir = require('storybook-rootpath').mockResolveModuleFileDir;17const mockResolveModuleFileDirSync = require('storybook-rootpath').mockResolveModuleFileDirSync;

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Using AI Code Generation

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1import { mount } from "enzyme";2import { withJestMock } from "storybook-root";3import { MyComponent } from "my-component";4describe("MyComponent", () => {5 it("should render", () => {6 const wrapper = mount(withJestMock(MyComponent));7 expect(wrapper).toMatchSnapshot();8 });9});10import { configure } from "@storybook/​react";11import { addDecorator } from "@storybook/​react";12import { withJestMock } from "storybook-root";13addDecorator(withJestMock);14configure(require.context("../​src", true, /​\.stories\.js$/​), module);15import "storybook-root/​addons";16const path = require("path");17const root = path.resolve(__dirname, "..");18module.exports = ({ config }) => {19 config.resolve.modules = [root, "node_modules"];20 return config;21};22"scripts": {23},24"devDependencies": {25}26"jest": {27 "moduleNameMapper": {28 }29}30{31}32{33 "rules": {34 "import/​no-extraneous-dependencies": ["error", { "devDependencies": true }],35 "react/​jsx-filename-extension": [1, { "extensions": [".js",

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Using AI Code Generation

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1const { getStory } = require('storybook-root-cause');2const { render } = require('@testing-library/​react');3const { default: MyComponent } = require('./​MyComponent');4describe('MyComponent', () => {5 it('should render the component', () => {6 const { container } = render(getStory(MyComponent));7 expect(container).toMatchSnapshot();8 });9});10import React from 'react';11import { MyComponent } from './​MyComponent';12export default {13};14export const Default = () => <MyComponent /​>;15Default.parameters = {16 rootCause: {17 mock: {18 },19 },20};21import React from 'react';22import PropTypes from 'prop-types';23export const MyComponent = ({ name }) => {24 return <div data-testid="my-component">{name}</​div>;25};26MyComponent.propTypes = {27};28`;29import { getStory } from 'storybook-root-cause';30describe('MyComponent', () => {31 it('should render the component', () => {32 expect(getStory(MyComponent)).toMatchSnapshot();33 });34});35import { getStory } from 'storybook-root-cause';36describe('MyComponent', () => {37 it('should render the component', () => {38 expect(getStory(MyComponent)).toMatchSnapshot();39 });40});

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Using AI Code Generation

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1import { withRootDecorator } from 'storybook-root-decorator';2export default withRootDecorator(story => story(), { storybook: true, jest: true });3In your storybook stories, import the decorator and add it to the story:4import React from 'react';5import { storiesOf } from '@storybook/​react';6import Button from '../​../​src/​components/​Button';7import { withRootDecorator } from 'storybook-root-decorator';8storiesOf('Button', module)9 .addDecorator(withRootDecorator)10 .add('with text', () => <Button>Hello Button</​Button>)11 .add('with some emoji', () => (12 ));13In your Jest tests, import the decorator and add it to the story:14import React from 'react';15import renderer from 'react-test-renderer';16import Button from '../​../​src/​components/​Button';17import { withRootDecorator } from 'storybook-root-decorator';18test('renders correctly', () => {19 .create(withRootDecorator(<Button>Hello Button</​Button>))20 .toJSON();21 expect(tree).toMatchSnapshot();22});23import React from 'react';24import { storiesOf } from '@storybook/​react';25import Button from '../​../​src/​components/​Button';26import { withRootDecorator } from 'storybook-root-decorator';27storiesOf('Button', module)28 .addDecorator(withRootDecorator())29 .add('with text', () => <Button>Hello Button</​Button>)30 .add('with some emoji', () => (

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Using AI Code Generation

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1import { storybookRoot } from 'storybook-root';2import { mock, unmock } from 'jest-mock-extended';3const test = storybookRoot(mock);4test('test', () => {5});6import { storybookRoot } from 'storybook-root';7import { mock, unmock } from 'jest-mock-extended';8const test = storybookRoot(mock);9test('test', () => {10});11import { storybookRoot } from 'storybook-root';12import { mock, unmock } from 'jest-mock-extended';13const test = storybookRoot(mock);14test('test', () => {15});16import { storybookRoot } from 'storybook-root';17import { mock, unmock } from 'jest-mock-extended';18const test = storybookRoot(mock);19test('test', () => {20});21import { storybookRoot } from 'storybook-root';22import { mock, unmock } from 'jest-mock-extended';23const test = storybookRoot(mock);24test('test', () => {25});26import { storybookRoot } from 'storybook-root';27import { mock, unmock } from 'jest-mock-extended';28const test = storybookRoot(mock);29test('test', () => {30});31import { storybookRoot } from 'storybook-root';32import { mock, unmock } from 'jest-mock-extended';33const test = storybookRoot(mock);34test('test', () => {35});36import { storybookRoot } from 'storybook-root';37import { mock, unmock } from 'jest-mock-extended';38const test = storybookRoot(mock);39test('test', () => {40});

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