Best JavaScript code snippet using storybook-root
index.test.ts
Source:index.test.ts
1import { Channel, ChannelEvent, ChannelTransport, Listener } from '.';2jest.useFakeTimers();3describe('Channel', () => {4 let transport: ChannelTransport;5 let channel: Channel;6 beforeEach(() => {7 transport = { setHandler: jest.fn(), send: jest.fn() };8 channel = new Channel({ transport });9 });10 describe('constructor', () => {11 it('should set the handler if handler is preset', () => {12 channel = new Channel({ transport });13 expect(transport.setHandler).toHaveBeenCalled();14 });15 it('should not set transport if not passed as an argument', () => {16 channel = new Channel();17 expect(channel.hasTransport).toBeFalsy();18 });19 it('should set transport if passed as an argument', () => {20 channel = new Channel({ transport });21 expect(channel.hasTransport).toBeTruthy();22 });23 it('should set isAsync to false as default value', () => {24 channel = new Channel();25 expect(channel.isAsync).toBeFalsy();26 });27 it('should set isAsync to true if passed as an argument', () => {28 channel = new Channel({ async: true });29 expect(channel.isAsync).toBeTruthy();30 });31 });32 describe('method:addListener', () => {33 it('should create one listener', () => {34 const eventName = 'event1';35 channel.addListener(eventName, jest.fn());36 expect(channel.listeners(eventName).length).toBe(1);37 });38 });39 describe('method:on', () => {40 it('should do the same as addListener', () => {41 const eventName = 'event1';42 channel.on(eventName, jest.fn());43 expect(channel.listeners(eventName).length).toBe(1);44 });45 });46 describe('method:off', () => {47 it('should remove listeners', () => {48 const eventName = 'event1';49 const fn = jest.fn();50 channel.on(eventName, fn);51 expect(channel.listeners(eventName).length).toBe(1);52 channel.off(eventName, fn);53 expect(channel.listeners(eventName).length).toBe(0);54 });55 });56 describe('method:emit', () => {57 it('should execute the callback fn of a listener', () => {58 const eventName = 'event1';59 const listenerInputData = ['string1', 'string2', 'string3'];60 let listenerOutputData: string[] = null;61 const mockListener: Listener = (data) => {62 listenerOutputData = data;63 };64 channel.addListener(eventName, mockListener);65 channel.emit(eventName, listenerInputData);66 expect(listenerOutputData).toBe(listenerInputData);67 });68 it('should be callable with a spread operator as event arguments', () => {69 const eventName = 'event1';70 const listenerInputData = ['string1', 'string2', 'string3'];71 let listenerOutputData: string[] = null;72 channel.addListener(eventName, (...data) => {73 listenerOutputData = data;74 });75 channel.emit(eventName, ...listenerInputData);76 expect(listenerOutputData).toEqual(listenerInputData);77 });78 it('should be callable with options on the event', () => {79 const eventName = 'event1';80 const listenerInputData = [{ event: {}, options: { depth: 1 } }];81 let listenerOutputData: any = null;82 channel.addListener(eventName, (...data) => {83 listenerOutputData = data;84 });85 const sendSpy = jest.fn();86 // @ts-ignore87 channel.transport.send = sendSpy;88 channel.emit(eventName, ...listenerInputData);89 expect(listenerOutputData).toEqual(listenerInputData);90 expect(sendSpy.mock.calls[0][1]).toEqual({ depth: 1 });91 });92 it('should use setImmediate if async is true', () => {93 channel = new Channel({ async: true, transport });94 channel.addListener('event1', jest.fn());95 });96 });97 describe('method:eventNames', () => {98 it('should return a list of all registered events', () => {99 const eventNames = ['event1', 'event2', 'event3'];100 eventNames.forEach((eventName) => channel.addListener(eventName, jest.fn()));101 expect(channel.eventNames()).toEqual(eventNames);102 });103 });104 describe('method:listenerCount', () => {105 it('should return a list of all registered events', () => {106 const events = [107 { eventName: 'event1', listeners: [jest.fn(), jest.fn(), jest.fn()], listenerCount: 0 },108 { eventName: 'event2', listeners: [jest.fn()], listenerCount: 0 },109 ];110 events.forEach((event) => {111 event.listeners.forEach((listener) => {112 channel.addListener(event.eventName, listener);113 // eslint-disable-next-line no-plusplus, no-param-reassign114 event.listenerCount++;115 });116 });117 events.forEach((event) => {118 expect(channel.listenerCount(event.eventName)).toBe(event.listenerCount);119 });120 });121 });122 describe('method:once', () => {123 it('should execute a listener once and remove it afterwards', () => {124 const eventName = 'event1';125 channel.once(eventName, jest.fn());126 channel.emit(eventName);127 expect(channel.listenerCount(eventName)).toBe(0);128 });129 it('should pass all event arguments correctly to the listener', () => {130 const eventName = 'event1';131 const listenerInputData = ['string1', 'string2', 'string3'];132 let listenerOutputData = null;133 const mockListener: Listener = (data: string[]) => {134 listenerOutputData = data;135 };136 channel.once(eventName, (args) => mockListener(args));137 channel.emit(eventName, listenerInputData);138 expect(listenerOutputData).toEqual(listenerInputData);139 });140 it('should be removable', () => {141 const eventName = 'event1';142 const listenerToBeRemoved = jest.fn();143 channel.once(eventName, listenerToBeRemoved);144 channel.removeListener(eventName, listenerToBeRemoved);145 });146 });147 describe('method:removeAllListeners', () => {148 it('should remove all listeners', () => {149 const eventName1 = 'event1';150 const eventName2 = 'event2';151 const listeners1 = [jest.fn(), jest.fn(), jest.fn()];152 const listeners2 = [jest.fn()];153 listeners1.forEach((fn) => channel.addListener(eventName1, fn));154 listeners2.forEach((fn) => channel.addListener(eventName2, fn));155 channel.removeAllListeners();156 expect(channel.listenerCount(eventName1)).toBe(0);157 expect(channel.listenerCount(eventName2)).toBe(0);158 });159 it('should remove all listeners of a certain event', () => {160 const eventName = 'event1';161 const listeners = [jest.fn(), jest.fn(), jest.fn()];162 listeners.forEach((fn) => channel.addListener(eventName, fn));163 expect(channel.listenerCount(eventName)).toBe(listeners.length);164 channel.removeAllListeners(eventName);165 expect(channel.listenerCount(eventName)).toBe(0);166 });167 });168 describe('method:removeListener', () => {169 it('should remove one listener', () => {170 const eventName = 'event1';171 const listenerToBeRemoved = jest.fn();172 const listeners = [jest.fn(), jest.fn()];173 const findListener = (listener: Listener) =>174 channel.listeners(eventName).find((_listener) => _listener === listener);175 listeners.forEach((fn) => channel.addListener(eventName, fn));176 channel.addListener(eventName, listenerToBeRemoved);177 expect(findListener(listenerToBeRemoved)).toBe(listenerToBeRemoved);178 channel.removeListener(eventName, listenerToBeRemoved);179 expect(findListener(listenerToBeRemoved)).toBeUndefined();180 });181 });...
Using AI Code Generation
1import { listenerToBeRemoved } from 'storybook-root';2export const listenerToBeRemoved = () => {3};4export const listenerToBeRemoved = () => {5};6export const listenerToBeRemoved = () => {7};8export const listenerToBeRemoved = () => {9};10export const listenerToBeRemoved = () => {11};12export const listenerToBeRemoved = () => {13};14export const listenerToBeRemoved = () => {15};16export const listenerToBeRemoved = () => {17};18export const listenerToBeRemoved = () => {19};20export const listenerToBeRemoved = () => {21};22export const listenerToBeRemoved = () => {23};24export const listenerToBeRemoved = () => {25};26export const listenerToBeRemoved = () => {27};
Using AI Code Generation
1import { listenerToBeRemoved } from "storybook-root";2export const listenerToBeRemoved = () => {3};4import { listenerToBeRemoved } from "storybook-root";5export const listenerToBeRemoved = () => {6};7import { listenerToBeRemoved } from "storybook-root";8export const listenerToBeRemoved = () => {9};10import { listenerToBeRemoved } from "storybook-root";11export const listenerToBeRemoved = () => {12};13import { listenerToBeRemoved } from "storybook-root";14export const listenerToBeRemoved = () => {15};16import { listenerToBeRemoved } from "storybook-root";17export const listenerToBeRemoved = () => {18};19import { listenerToBeRemoved } from "storybook-root";20export const listenerToBeRemoved = () => {21};22import { listenerToBeRemoved } from "storybook-root";
Using AI Code Generation
1import { listenerToBeRemoved } from 'storybook-root-cause';2import { useStorybookApi } from '@storybook/api';3const storybookApi = useStorybookApi();4listenerToBeRemoved(storybookApi, 'storyChanged', () => {5});6import { listenerToBeRemoved } from 'storybook-root-cause';7import { useStorybookApi } from '@storybook/api';8const storybookApi = useStorybookApi();9listenerToBeRemoved(storybookApi, 'storyChanged', () => {10});11import { listenerToBeRemoved } from 'storybook-root-cause';12import { useStorybookApi } from '@storybook/api';13const storybookApi = useStorybookApi();14listenerToBeRemoved(storybookApi, 'storyChanged', () => {15});16import { listenerToBeRemoved } from 'storybook-root-cause';17import { useStorybookApi } from '@storybook/api';18const storybookApi = useStorybookApi();19listenerToBeRemoved(storybookApi, 'storyChanged', () => {20});21import { listenerToBeRemoved } from 'storybook-root-cause';22import { useStorybookApi } from '@storybook/api';23const storybookApi = useStorybookApi();24listenerToBeRemoved(storybookApi, 'storyChanged', () => {25});26import { listenerToBeRemoved } from 'storybook-root-cause';27import { useStorybookApi } from '@storybook/api';28const storybookApi = useStorybookApi();29listenerToBeRemoved(storybookApi, 'storyChanged', () => {30});
Using AI Code Generation
1import { listenerToBeRemoved } from "storybook-root-cause";2export default function test() {3 listenerToBeRemoved("click", "button", () => {4 console.log("button clicked");5 });6}7import { listenerToBeRemoved } from "storybook-root-cause";8describe("test", () => {9 it("should remove listener", () => {10 const button = document.createElement("button");11 document.body.appendChild(button);12 const listener = () => {13 console.log("button clicked");14 };15 button.addEventListener("click", listener);16 listenerToBeRemoved("click", "button", listener);17 });18});19import { listenerToBeRemoved } from "storybook-root-cause";20export default {21};22export const test = () => {23 const button = document.createElement("button");24 document.body.appendChild(button);25 const listener = () => {26 console.log("button clicked");27 };28 button.addEventListener("click", listener);29 listenerToBeRemoved("click", "button", listener);30 return "test";31};32import { listenerToBeRemoved } from "storybook-root-cause";33describe("test", () => {34 it("should remove listener", () => {35 const button = document.createElement("button");36 document.body.appendChild(button);37 const listener = () => {38 console.log("button clicked");39 };40 button.addEventListener("click", listener);41 listenerToBeRemoved("click", "button", listener);42 });43});44import { listenerToBeRemoved } from "storybook-root-cause";45export default {46};47export const test = () => {48 const button = document.createElement("button");49 document.body.appendChild(button);50 const listener = () => {51 console.log("button clicked");52 };53 button.addEventListener("click", listener);54 listenerToBeRemoved("click", "button", listener);55 return "test";56};
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