How to use mountReducer method in Playwright Internal

Best JavaScript code snippet using playwright-internal

simpleReactHookV2.js

Source:simpleReactHookV2.js Github

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...17 /​/​组件首次render是mount，之后触发更新为update18 isMount = false19 return app20}21function mountReducer(initState, hook) {22 /​/​ 1. 处理保存hook23 if (isMount) {24 /​/​ mount时需要生成hook对象25 hook = { /​/​hook是链表26 /​/​ 初始值27 memoizedState: initState,28 /​/​ 极简版本没用到hook.next29 next: null,30 /​/​保存多个update，例如onclick中调用三次updateNum方法31 queue: {32 pending: null33 }34 }35 /​/​ 将hook插入fiber.memoizedState的末尾36 if (!fiber.memoizedState) {37 fiber.memoizedState = hook38 } else {39 /​/​ 同时调用 多个useState 时进入else 40 /​/​ workInProgressHook 保存了当前组件所有hook，并用链表的形式保证按顺序调用41 workInProgressHook.next = hook42 }43 /​/​ 移动workInProgress指针44 workInProgressHook = hook45 }46 return hook47}48function updateReducer(reducer, hook) {49 /​/​ 1. 处理保存hook50 /​/​ update时需要从workInProgress中取出该useState对应的hook 51 hook = workInProgressHook52 /​/​ 链表操作，获取下一个hook53 workInProgressHook = workInProgressHook.next54 /​/​2. 处理更新-破开update环状单向链表55 /​/​ update前初始值56 let baseState = hook.memoizedState57 if (hook.queue.pending) {58 /​/​ 获取update链表中第一个update59 let firstUpdate = hook.queue.pending.next60 do {61 /​/​ 执行update action62 const action = firstUpdate.action63 /​/​ baseState = action(baseState)64 if (reducer) {65 /​/​ reducer useReducer和useState唯一的不同66 baseState = reducer(baseState, action);67 } else {68 baseState = action(baseState)69 }70 firstUpdate = firstUpdate.next71 /​/​执行完最后一个update 跳出循环72 } while (firstUpdate !== hook.queue.pending.next)73 /​/​清空hook.queue.pending74 hook.queue.pending = null75 }76 hook.memoizedState = baseState77 return hook78}79function useState(initState) {80 /​/​ 保存当前useState使用的hook81 let hook;82 if (isMount) {83 hook = mountReducer(initState, hook)84 } else {85 /​/​ 第一个参数null 代表没有reducer86 hook = updateReducer(null, hook)87 }88 let baseState = hook.memoizedState89 return [baseState, dispatchAction.bind(null, hook.queue)]90}91function useReducer(reducer, initialState) {92 /​/​ 保存当前useState使用的hook93 let hook;94 if (isMount) {95 hook = mountReducer(initialState, hook)96 } else {97 hook = updateReducer(reducer, hook)98 }99 let baseState = hook.memoizedState100 return [baseState, dispatchAction.bind(null, hook.queue)]101}102/​/​ 实际调用的函数103function dispatchAction(queue, action) {104 /​/​ 创建update,action保存实际需要回掉函数105 const update = {106 action,107 next: null108 }109 /​/​ 环状单向链表-> 为了优先级优化...

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react-fiber-hooks.js

Source:react-fiber-hooks.js Github

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...15 currentlyRenderingFiber = null;16 workInProgressHook = null;17 return children;18}19function mountReducer(reducer, initialArg) {20 /​/​构建hooks单向链表21 let hook = mountWorkInProgressHook();22 hook.memoizedState = initialArg;23 const queue = (hook.queue = { pending: null });/​/​更新队列24 /​/​每次绑定都会返一个新的函数 fiber 和queue 每个hook的队列都不一样25 const dispatch = dispatchAction.bind(null, currentlyRenderingFiber, queue);26 return [hook.memoizedState, dispatch];27}28function dispatchAction(currentlyRenderingFiber, queue, action) {29 const update = { action, next: null };/​/​创建一个update对象30 const pending = queue.pending;31 if (pending === null) {32 update.next = update;/​/​让自己和自己构建成一个循环链表 环状链表33 } else {...

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mount.js

Source:mount.js Github

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1import _forOwn from 'lodash/​forOwn';2export function mountReducer(name, reducer){3 const uppercase = name.toUpperCase() + "_";4 return function mountedReducer(state,action){5 if (action.type.indexOf(uppercase)===0){6 return {7 ...state,8 [name]:reducer(state && state[name],{...action,type:action.type.substring(uppercase.length)})9 }10 } else {11 return {12 ...state,13 [name]:reducer(state && state[name],action)14 }15 }16 }17}18export function mountAction (name,action, types){19 return function mountedAction(...args){20 var res = action.apply(null,args);21 if (types[res.type]){22 res.type=name.toUpperCase() + "_" + res.type;23 }24 return res;25 }26}27export function mountActions(name,actions, types = {}){28 var res= {};29 _forOwn(actions,(value,key)=>{30 if (typeof(value) === 'function') {31 res[key] = mountAction(name, value,types)32 } else {33 res[key] = mountActions(name,value, types)34 }35 });36 return res;37}38export function mountSelector(name,selector){39 return function(state,...args) {40 return selector.apply(null,[(state || {})[name]].concat(args))41 }42}43export function mountSelectors(name,selectors) {44 var res= {};45 _forOwn(selectors,(value,key)=>{46 if (typeof(value) === 'function') {47 res[key] = mountSelector(name, value)48 } else {49 res[key] = mountSelectors(name,value)50 }51 });52 return res;53}54function mountType(name,type){55 return name.toUpperCase() + "_" + type;56}57export function mountTypes(name,types){58 var res= {};59 _forOwn(types,(value,key)=>{60 if (typeof(value) !== 'object') {61 res[key] = mountType(name, value)62 } else {63 res[key] = mountTypes(name,value)64 }65 });66 return res;67}68export default function mount(name){69 return function mountModule(mod){70 const {reducer,actions,selectors,types,...rest} = mod;71 return {72 reducer: reducer && mountReducer(name, reducer),73 actions: actions && mountActions(name, actions, types),74 selectors: selectors && mountSelectors(name, selectors),75 types: types && mountTypes(name,types),76 ...rest77 }78 }...

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ReactFiberHooks.js

Source:ReactFiberHooks.js Github

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1let ReactCurrentDispatcher = {2 current: null3}4const HookDispatcherOnMount = {5 useReducer: mountReducer6}7let workInProgressHook = null8let currentlyRenderingFiber = null9/​/​ 不同阶段useReducer有不同实现10export function renderWithHooks(current, workInProgress, Component) {11 currentlyRenderingFiber = workInProgress12 ReactCurrentDispatcher.current = HookDispatcherOnMount13 let children = Component();14 currentlyRenderingFiber = null15 workInProgressHook = null16 return children17}18function mountReducer (reducer, initialArg) {19 /​/​ 构建hooks 单向链表20 let hook = mountWorkInProgressHook()21 hook.memoizedState = initialArg22 const queue = (hook.queue = {pending: null})23 const dispatch = dispatchAction.bind(null, currentlyRenderingFiber, queue)24 return [hook.memoizedState, dispatch]25}26function dispatchAction (currentlyRenderingFiber, queue, action) {27 const update = { action, next: null }28 const pending = queue.pending29 if (pending === null) {30 update.next = update31 } else {32 update.next = pending.next33 pending.next = update34 }35 queue.pending = update36}37export function useReducer (reducer, initialArg) {38 return ReactCurrentDispatcher.current.useReducer(reducer, initialArg)39}40function mountWorkInProgressHook() {41 let hook ={ 42 memoizedState: null,43 queue: null, /​/​更新操作 环型44 next: null45 }46 if (workInProgressHook === null) {47 /​/​ first hook48 currentlyRenderingFiber.memoizedState = workInProgressHook = hook49 } else {50 workInProgressHook = workInProgressHook.next = hook51 }52 return workInProgressHook...

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reducer.js

Source:reducer.js Github

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...35 return state.update('answers', (answers) => {36 return answers.delete(payload.index);37 });38}39export default mountReducer(new Map({40 fetching: false,41 errors: [],42 questions: new List(),43 answers: new List()44}), {45 ...baseFetchOperations(setQuestion)(QUESTIONS_LIST_STAGES),46 [CLEAR_ANSWER]: clearAnswer,47 [UPDATE_ANSWER]: updateAnswer,48 [ADD_ANSWER]: addAnswer,49 [REMOVE_ANSWER]: removeAnswer,...

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index.js

Source:index.js Github

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1import {combineReducers} from 'redux';2import statusReducer from './​statusReducer';3import configReducer from "./​configReducer";4import explorerReducer from "./​explorerReducer";5import explorerState from "./​explorerStateReducer";6import {SIGNOUT_REQUEST} from "../​actions/​types";7import providerStatusReducer from "./​providerStatusReducer";8import userActionsReducer from "./​userActionsReducer";9import imagesReducer from "./​imagesReducer";10import versionReducer from "./​versionReducer";11import mountReducer from "./​mountReducer";12/​**13 * Configures the root reducer to be executed before any other reducers configured in the system.14 * This involves actions for clearing the localStorage and state when user signs out.15 * @param state16 * @param action17 * @returns {any}18 */​19const rootReducer = (state, action) => {20 if (action.type === SIGNOUT_REQUEST) {21 localStorage.clear();22 state = undefined;23 }24 return appReducer(state, action);25};26/​**27 * List of reducers to be configured. The reducers are called one by one from top to bottom.28 * @type {Reducer<any>}29 */​30const appReducer = combineReducers({31 status: statusReducer,32 config: configReducer,33 remote: explorerReducer,34 explorer: explorerState,35 providerStatus: providerStatusReducer,36 user: userActionsReducer,37 imageLoader: imagesReducer,38 version: versionReducer,39 mount: mountReducer,40 /​/​ remoteOps: remoteOpsReducer41});...

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common.test.js

Source:common.test.js Github

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...33 describe('mountReducer', () => {34 it('throws error when duplicate reducer is found', () => {35 const reducerName = 'test_reducer';36 const map = {};37 common.mountReducer(map, reducerName, () => {});38 assert.throws(39 () => { common.mountReducer(map, reducerName, () => {}); },40 Error,41 'Duplicate module name for reducer: test_reducer.'42 );43 });44 });...

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renderWithHooks.js

Source:renderWithHooks.js Github

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...15 let children = Component();16 currentlyRenderingFiber = null;17 return children;18}19function mountReducer(reducer, initalArg) {20 let hook = mountInprogressHook();21 hook.memoizedState = initalArg;22 const queue = (hook.queue = { pending: null});/​/​ 更新队列23 const dispatch = dispatchAction.bind(null, currentlyRenderingFiber, queue);24 return [hook.memoizedState, dispatch];25}26function mountInprogressHook() {27 /​/​ 先创建一个hook对象28 let hook = {29 memoizedState: null, /​/​ 自己的状态30 queue: null, /​/​ 自己的更新队列31 next: null, /​/​ 下一个32 }33 /​/​第一次的hook...

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Using AI Code Generation

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1const { mountReducer } = require('@playwright/​test');2const reducer = (state = 0, action) => {3 switch (action.type) {4 return state + 1;5 return state - 1;6 return state;7 }8};9test('counter test', async ({ page }) => {10 await mountReducer(page, reducer);11 await page.click('text=Clear completed');12 await page.click('text=All');13 await page.click('text=Active');14 await page.click('text=Completed');15 await page.click('text=All');16 await page.click('text=Completed');17 await page.click('text=All');18 await page.click('text=Active');19 await page.click('text=All');20 await page.click('text=Completed');21 await page.click('text=All');22 await page.click('text=Active');23 await page.click('text=All');24 await page.click('text=Completed');25 await page.click('text=All');26 await page.click('text=Active');27 await page.click('text=All');28 await page.click('text=Completed');29 await page.click('text=All');30 await page.click('text=Active');31 await page.click('text=All');32 await page.click('text=Completed');33 await page.click('text=All');34 await page.click('text=Active');35 await page.click('text=All');36 await page.click('text=Completed');37 await page.click('text=All');38 await page.click('text=Active');39 await page.click('text=All');40 await page.click('text=Completed');41 await page.click('text=All');42 await page.click('text=Active');43 await page.click('text=All');44 await page.click('text=Completed');45 await page.click('text=All');46 await page.click('text=Active');47 await page.click('text=All');48 await page.click('text=Completed');49 await page.click('text=All');50 await page.click('text=Active');51 await page.click('text=All');52 await page.click('text=Completed');53 await page.click('text=All');

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Using AI Code Generation

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1const { mountReducer } = require('@playwright/​test');2const reducer = (state, action) => {3 switch (action.type) {4 return { ...state, ...action.payload };5 return state;6 }7};8const initialState = { value: 0 };9mountReducer('counter', reducer, initialState);10const { dispatch } = require('@playwright/​test');11dispatch({ type: 'update', payload: { value: 1 } });12import { mountReducer, dispatch } from 'playwright-test-utils';13const { mountReducer } = require('@playwright/​test');14const reducer = (state, action) => {15 switch (action.type) {16 return { ...state, ...action.payload };17 return state;18 }19};20const initialState = { value: 0 };21mountReducer('counter', reducer, initialState);22const { dispatch } = require('@playwright/​test');23dispatch({ type: 'update', payload: { value: 1 } });24const { mountReducer } = require('@playwright/​test');25const reducer = (state, action) => {26 switch (action.type) {27 return { ...state, ...action.payload };28 return state;29 }30};31const initialState = { value: 0 };32mountReducer('counter', reducer, initialState);33const { dispatch } = require('@playwright/​test');34dispatch({ type: 'update

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Using AI Code Generation

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1const { mountReducer } = require('@playwright/​test');2const reducer = require('./​reducer');3const { test } = require('@playwright/​test');4test.use({ storageState: 'state.json' });5test('test', async ({ page }) => {6 const state = await mountReducer(page, reducer);7 console.log(state);8});9const reducer = (state, action) => {10 switch (action.type) {11 return { ...state, count: state.count + 1 };12 return { ...state, count: state.count - 1 };13 return { ...state, count: 0 };14 return state;15 }16}17module.exports = reducer;

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Using AI Code Generation

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1const { mountReducer } = require('playwright');2const { reducer, state } = require('./​reducer');3const page = await browser.newPage();4await mountReducer(page, reducer, state);5await page.close();6const reducer = (state, action) => {7 switch (action.type) {8 return { ...state, count: state.count + 1 };9 return { ...state, count: state.count - 1 };10 return { ...state, count: 0 };11 return state;12 }13};14const state = {15};16module.exports = { reducer, state };17const { mountReducer } = require('playwright');18const { reducer, state } = require('./​reducer');19const page = await browser.newPage();20await mountReducer(page, reducer, state);21await page.close();22const reducer = (state, action) => {23 switch (action.type) {24 return { ...state, count: state.count + 1 };25 return { ...state, count: state.count - 1 };26 return { ...state, count: 0 };27 return state;28 }29};30const state = {31};32module.exports = { reducer, state };33const { mountReducer } = require('playwright');34const { reducer, state } = require('./​reducer');35const page = await browser.newPage();36await mountReducer(page, reducer, state);37await page.close();38const reducer = (state, action) => {39 switch (action.type) {40 return { ...state, count: state.count + 1 };

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Using AI Code Generation

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1const { mountReducer } = require('playwright');2const { reducer, initialState } = require('./​reducer');3const reducerId = mountReducer(reducer, initialState);4const { useReducer } = require('playwright');5const { reducer, initialState } = require('./​reducer');6const [state, dispatch] = useReducer(reducerId, reducer, initialState);7const { unmountReducer } = require('playwright');8unmountReducer(reducerId);9const initialState = { count: 0 };10function reducer(state, action) {11 switch (action.type) {12 return { count: state.count + 1 };13 return { count: state.count - 1 };14 return initialState;15 throw new Error();16 }17}18module.exports = { reducer, initialState };

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Using AI Code Generation

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1const { mountReducer } = require('playwright/​lib/​server/​webkit');2const { test } = require('playwright-test');3test('test', async ({ page }) => {4 const reducer = (state, action) => {5 if (action.type === 'add') {6 return { ...state, count: state.count + 1 };7 }8 return state;9 };10 const initialState = { count: 0 };11 const store = mountReducer(page, reducer, initialState);12 await store.dispatch({ type: 'add' });13 const state = await store.getState();14 expect(state.count).toBe(1);15});16import { test, expect } from '@playwright/​test';17import { mountReducer } from 'playwright/​lib/​server/​webkit';18test('test', async ({ page }) => {19 const reducer = (state, action) => {20 if (action.type === 'add') {21 return { ...state, count: state.count + 1 };22 }23 return state;24 };25 const initialState = { count: 0 };26 const store = mountReducer(page, reducer, initialState);27 await store.dispatch({ type: 'add' });28 const state = await store.getState();29 expect(state.count).toBe(1);30});31const { test, expect } = require('@playwright/​test');32const { mountReducer } = require('playwright/​lib/​server/​webkit');33test('test', async ({ page }) => {34 const reducer = (state, action) => {35 if (action.type === 'add') {36 return { ...state, count: state.count + 1 };37 }38 return state;39 };40 const initialState = { count: 0 };41 const store = mountReducer(page, reducer, initialState);42 await store.dispatch({ type: 'add' });43 const state = await store.getState();44 expect(state.count).toBe(1);45});

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Using AI Code Generation

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1import { mountReducer } from '@playwright/​test';2import { reducer } from '../​reducers/​index.js';3import { initialState } from '../​reducers/​index.js';4import { action } from '../​actions/​index.js';5import { expect } from '@playwright/​test';6test.beforeEach(async ({ page }) => {7});8test('test', async ({ page }) => {9 const [state, dispatch] = await mountReducer(page, reducer, initialState);10 await dispatch(action);11 expect(state).toBe('state');12});13export const reducer = (state, action) => {14 switch (action.type) {15 return 'state';16 }17};18export const initialState = 'initialState';19export const action = {20};21{22 "scripts": {23 },24 "devDependencies": {25 }26}

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Using AI Code Generation

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1await page.mountReducer(reducer, initialState);2await page.dispatch('increment');3const state = await page.getState();4await page.dispatch('decrement');5const state = await page.getState();6await page.dispatch('reset');7const state = await page.getState();8await page.unmountReducer();9await page.dispatch('increment');10const state = await page.getState();11await page.dispatch('decrement');12const state = await page.getState();13await page.dispatch('reset');14const state = await page.getState();15await page.unmountReducer();16await page.dispatch('increment');17const state = await page.getState();18await page.dispatch('decrement');19const state = await page.getState();20await page.dispatch('reset');21const state = await page.getState();22await page.unmountReducer();23await page.dispatch('increment');24const state = await page.getState();25await page.dispatch('decrement');26const state = await page.getState();27await page.dispatch('reset');

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