How to use flushJobs method in Playwright Internal

Best JavaScript code snippet using playwright-internal

apiWatch2.js

Source: apiWatch2.js Github

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...32 nextTick(flushJobs) 33 } 34} 35const getId = (job) => (job.id == null ? Infinity : job.id) 36function flushJobs(seen) { 37 isFlushPending = false 38 isFlushing = true 39 let job 40 if ((process.env.NODE_ENV !== 'production')) { 41 seen = seen || new Map() 42 } 43 /​/​ 组件的更新是先父后子 44 /​/​ 如果一个组件在父组件更新过程中卸载,它自身的更新应该被跳过 45 queue.sort((a, b) => getId(a) - getId(b)) 46 while ((job = queue.shift()) !== undefined) { 47 if (job === null) { 48 continue 49 } 50 if ((process.env.NODE_ENV !== 'production')) { 51 checkRecursiveUpdates(seen, job) 52 } 53 callWithErrorHandling(job, null, 14 /​* SCHEDULER */​) 54 } 55 flushPostFlushCbs(seen) 56 isFlushing = false 57 /​/​ 一些 postFlushCb 执行过程中会再次添加异步任务,递归 flushJobs 会把它们都执行完毕 58 if (queue.length || postFlushCbs.length) { 59 flushJobs(seen) 60 } 61} 62function flushPostFlushCbs(seen) { 63 if (postFlushCbs.length) { 64 /​/​ 拷贝副本 65 const cbs = [...new Set(postFlushCbs)] 66 postFlushCbs.length = 0 67 if ((process.env.NODE_ENV !== 'production')) { 68 seen = seen || new Map() 69 } 70 for (let i = 0; i < cbs.length; i++) { 71 if ((process.env.NODE_ENV !== 'production')) { 72 checkRecursiveUpdates(seen, cbs[i]) 73 } 74 cbs[i]() 75 } 76 } 77} 78const RECURSION_LIMIT = 100 79function checkRecursiveUpdates(seen, fn) { 80 if (!seen.has(fn)) { 81 seen.set(fn, 1) 82 } 83 else { 84 const count = seen.get(fn) 85 if (count > RECURSION_LIMIT) { 86 throw new Error('Maximum recursive updates exceeded. ' + 87 "You may have code that is mutating state in your component's " + 88 'render function or updated hook or watcher source function.') 89 } 90 else { 91 seen.set(fn, count + 1) 92 } 93 } 94} 95function queueFlush() { 96 if (!isFlushing) { 97 isFlushing = true 98 nextTick(flushJobs) 99 } 100} 101function flushJobs(seen) { 102 let job 103 if ((process.env.NODE_ENV !== 'production')) { 104 seen = seen || new Map() 105 } 106 queue.sort((a, b) => getId(a) - getId(b)) 107 while ((job = queue.shift()) !== undefined) { 108 if (job === null) { 109 continue 110 } 111 if ((process.env.NODE_ENV !== 'production')) { 112 checkRecursiveUpdates(seen, job) 113 } 114 callWithErrorHandling(job, null, 14 /​* SCHEDULER */​) 115 } 116 flushPostFlushCbs(seen) 117 if (queue.length || postFlushCbs.length) { 118 flushJobs(seen) 119 } 120 isFlushing = false 121} 122function watchEffect(effect, options) { 123 return doWatch(effect, null, options); 124} 125function doWatch(source, cb, { immediate, deep, flush, onTrack, onTrigger } = EMPTY_OBJ) { 126 instance = currentInstance; 127 let getter; 128 if (isFunction(source)) { 129 getter = () => { 130 if (instance && instance.isUnmounted) { 131 return; 132 } ...

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script.js

Source: script.js Github

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1let x;2let y;3let z;4let active;5/​/​ let f = (n) => n * 100 + 100;6let watch = function (fn) {7 active = fn;8 active();9 active = null;10};11let queue = [];12let nextTick = (cb) =>13 Promise.resolve()14 .then(cb)15 .then(() => {16 console.log("then then then");17 });18let queueJob = (job) => {19 if (!queue.includes(job)) {20 queue.push(job);21 nextTick(flushJobs);22 nextTick(flushJobs);23 }24};25let flushJobs = () => {26 let job;27 while ((job = queue.shift()) !== undefined) {28 console.log(job);29 job();30 }31};32/​/​ let onYChange = function (fn) {33/​/​ active = fn;34/​/​ active();35/​/​ active = null;36/​/​ };37class Dep {38 /​/​ ! only static function can be read from the whole class39 /​/​ static deps = new Set();40 /​/​ static depend() {41 /​/​ console.log(this.deps);42 /​/​ if (active) {43 /​/​ this.deps.add(active);44 /​/​ }45 /​/​ }46 constructor() {47 this.deps = new Set();48 }49 /​/​ deps = new Set(); /​/​ ! treat as a constructor, simple way50 test = "test";51 depend() {52 if (active) {53 this.deps.add(active);54 console.log(this.deps);55 console.log(this.test);56 }57 }58 notify() {59 this.deps.forEach((dep) => queueJob(dep));60 console.log(this.deps);61 }62}63let ref = (initValue) => {64 let value = initValue;65 let dep = new Dep();66 console.log(dep);67 return Object.defineProperty({}, "value", {68 /​/​ ! if use getter and setter then dont need actual value, and writeable69 /​/​ value: initValue,70 /​/​ writable: true,71 get() {72 dep.depend();73 return value;74 },75 set(newValue) {76 value = newValue;77 dep.notify();78 console.log(dep);79 },80 });81};82x = ref(1);83y = ref(5);84z = ref(6);85watch(() => {86 const ele = document.createElement("span");87 ele.innerText = `hello ${x.value} ${y.value} ${z.value}`;88 ele.style.color = "red";89 document.body.append(ele);90});91x.value = 2;92y.value = 6;93z.value = 7;94/​/​ onYChange(() => {95/​/​ const ele = document.createElement("span");96/​/​ ele.innerText = `hello! ${x.value} ${y.value}`;97/​/​ document.body.append(ele);98/​/​ });99/​/​ x.value = 2;100/​/​ x.value = 3;101/​/​ x.value = 4;102/​/​ y.value = 6;103/​/​ x.value = 7;104/​/​ function Animal() {105/​/​ this.name = "marshall";106/​/​ }107/​/​ Animal.prototype.speak = function () {108/​/​ return this;109/​/​ };110/​/​ Animal.eat = function () {111/​/​ return this;112/​/​ };113/​/​ let obj = new Animal();114/​/​ console.log(obj);115/​/​ let speak = obj.speak;116/​/​ console.log(speak());117/​/​ console.log(obj.speak()); /​/​ global object118/​/​ let eat = Animal.eat;119/​/​ console.log(eat()); /​/​ global object120/​/​ console.log(Animal.eat());121/​/​ let a = function () {122/​/​ return 1;123/​/​ };124/​/​ b = [1, 2, 3];125/​/​ let mySet = new Set();126/​/​ mySet.add(a);127/​/​ mySet.add(b);128/​/​ a = function () {129/​/​ return 2;130/​/​ };131/​/​ let c = b;132/​/​ let d = a;133/​/​ console.log(c);134/​/​ mySet.add(a);135/​/​ console.log(mySet);136/​/​ mySet.add(c);137/​/​ mySet.add(d);...

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$forceUpdate.js

Source: $forceUpdate.js Github

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...14 * 1. queueJob(i.update) /​/​ 放入更新队列15 * i.update 是 reactive effect for rendering,update 情况下分为 执行 beforeUpdate 钩子 --> patch --> 执行 update 钩子三步16 * 2. queueFlush()17 * 3. nextTick(flushJobs)18 * 4. flushJobs() /​/​ 更新...

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scheduler.js

Source: scheduler.js Github

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1let queued = false2const queue = []3const p = Promise.resolve()4exports.nextTick = (fn) => p.then(fn)5exports.queueJob = (job) => {6 if (!queue.includes(job)) queue.push(job)7 if (!queued) {8 queued = true9 nextTick(flushJobs)10 }11}12const flushJobs = () => {13 for (let i = 0; i < queue.length; i++) {14 queue[i]()15 }16 queue.length = 017 queued = false...

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 await page.waitForSelector('.navbar__inner');6 const element = await page.$('.navbar__inner');7 const boundingBox = await element.boundingBox();8 console.log(boundingBox);9 await browser.close();10})();11This project is under the MIT license. See the [LICENSE](

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Using AI Code Generation

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1const { chromium, webkit, firefox } = require('playwright');2(async () => {3 const browser = await webkit.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.fill('input[aria-label="Search"]', 'Playwright');7 await page.click('text=Google Search');8 await page.waitForResponse('**/​search**');9 await page.waitForTimeout(1000);10 await page.evaluate(() => {11 window.flushJobs();12 });13 await page.waitForTimeout(1000);14 await page.screenshot({ path: `example.png` });15 await browser.close();16})();17const { chromium, webkit, firefox } = require('playwright');18(async () => {19 const browser = await webkit.launch({ headless: false });20 const context = await browser.newContext();21 const page = await context.newPage();22 await page.fill('input[aria-label="Search"]', 'Playwright');23 await page.click('text=Google Search');24 await page.waitForResponse('**/​search**');25 await page.waitForTimeout(1000);26 await page.evaluate(() => {27 window.flushJobs();28 });29 await page.waitForTimeout(1000);30 await page.waitForEvent('page');31 await page.screenshot({ path: `example.png` });32 await browser.close();33})();34const { chromium, webkit, firefox } = require('playwright');35(async () => {36 const browser = await webkit.launch({ headless: false });37 const context = await browser.newContext();38 const page = await context.newPage();39 await page.fill('input[aria-label="Search"]', 'Playwright');40 await page.click('text=Google Search');

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Using AI Code Generation

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1const { flushJobs } = require('playwright/​lib/​server/​browserType');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 await flushJobs(browser);6 await browser.close();7})();8const { flushAllJobs } = require('playwright/​lib/​server/​browserType');9const { chromium } = require('playwright');10(async () => {11 await flushAllJobs();12 const browser = await chromium.launch();13 await browser.close();14})();15const { setChromiumSandbox } = require('playwright/​lib/​server/​browserType');16const { chromium } = require('playwright');17(async () => {18 await setChromiumSandbox(false);19 const browser = await chromium.launch();20 await browser.close();21})();22const { setChromiumArgs } = require('playwright/​lib/​server/​browserType');23const { chromium } = require('playwright');24(async () => {25 await setChromiumArgs(['--no-sandbox', '--disable-setuid-sandbox']);26 const browser = await chromium.launch();27 await browser.close();28})();29const { setFirefoxArgs } = require('playwright/​lib/​server/​browserType');30const { firefox

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Using AI Code Generation

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1const playwright = require('playwright');2const { flushJobs } = require('playwright/​lib/​server/​channels');3(async () => {4 for (const browserType of ['chromium', 'firefox', 'webkit']) {5 const browser = await playwright[browserType].launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await flushJobs(page);9 await page.screenshot({ path: `example-${browserType}.png` });10 await browser.close();11 }12})();13[Apache 2.0](LICENSE)

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Using AI Code Generation

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1const { test, expect } = require('@playwright/​test');2test('test', async ({ page }) => {3 await page.waitForTimeout(1000);4 await page.flushJobs();5 await page.waitForTimeout(1000);6 await page.flushJobs();7 await page.waitForTimeout(1000);8 await page.flushJobs();9});

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Using AI Code Generation

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1const { flushAllJobs } = require("playwright/​lib/​server/​frames");2await flushAllJobs();3### `flushAllJobs()`4### `flushAllJobsAndMicrotasks()`5### `flushAllJobsAndMicrotasksUntil(timeout)`6### `flushAllJobsUntil(timeout)`7### `flushAllMicrotasks()`8### `flushAllMicrotasksUntil(timeout)`9### `flushJob(jobId)`10### `flushJobAndMicrotasks(jobId)`11### `flushJobAndMicrotasksUntil(jobId, timeout)`12### `flushJobUntil(jobId, timeout)`13### `flushMicrotask(microtaskId)`14### `flushMicrotaskUntil(microtaskId, timeout)`

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StackOverFlow community discussions

Questions
Discussion

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Is it possible to get the selector from a locator object in playwright?

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

firefox browser does not start in playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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