Best JavaScript code snippet using playwright-internal
transition.js
Source: transition.js
...66}67function isSameChild (child: VNode, oldChild: VNode): boolean {68 return oldChild.key === child.key && oldChild.tag === child.tag69}70const isNotTextNode = (c: VNode) => c.tag || isAsyncPlaceholder(c)71const isVShowDirective = d => d.name === 'show'72export default {73 name: 'transition',74 props: transitionProps,75 abstract: true,76 render (h: Function) {77 let children: any = this.$slots.default78 if (!children) {79 return80 }81 // filter out text nodes (possible whitespaces)82 children = children.filter(isNotTextNode)83 /* istanbul ignore if */84 if (!children.length) {85 return86 }87 // warn multiple elements88 if (process.env.NODE_ENV !== 'production' && children.length > 1) {89 warn(90 '<transition> can only be used on a single element. Use ' +91 '<transition-group> for lists.',92 this.$parent93 )94 }95 const mode: string = this.mode96 // warn invalid mode97 if (process.env.NODE_ENV !== 'production' &&98 mode && mode !== 'in-out' && mode !== 'out-in'99 ) {100 warn(101 'invalid <transition> mode: ' + mode,102 this.$parent103 )104 }105 const rawChild: VNode = children[0]106 // if this is a component root node and the component's107 // parent container node also has transition, skip.108 if (hasParentTransition(this.$vnode)) {109 return rawChild110 }111 // apply transition data to child112 // use getRealChild() to ignore abstract components e.g. keep-alive113 const child: ?VNode = getRealChild(rawChild)114 /* istanbul ignore if */115 if (!child) {116 return rawChild117 }118 if (this._leaving) {119 return placeholder(h, rawChild)120 }121 // ensure a key that is unique to the vnode type and to this transition122 // component instance. This key will be used to remove pending leaving nodes123 // during entering.124 const id: string = `__transition-${this._uid}-`125 child.key = child.key == null126 ? child.isComment127 ? id + 'comment'128 : id + child.tag129 : isPrimitive(child.key)130 ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)131 : child.key132 const data: Object = (child.data || (child.data = {})).transition = extractTransitionData(this)133 const oldRawChild: VNode = this._vnode134 const oldChild: VNode = getRealChild(oldRawChild)135 // mark v-show136 // so that the transition module can hand over the control to the directive137 if (child.data.directives && child.data.directives.some(isVShowDirective)) {138 child.data.show = true139 }140 if (141 oldChild &&142 oldChild.data &&143 !isSameChild(child, oldChild) &&144 !isAsyncPlaceholder(oldChild) &&145 // #6687 component root is a comment node146 !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)147 ) {148 // replace old child transition data with fresh one149 // important for dynamic transitions!150 const oldData: Object = oldChild.data.transition = extend({}, data)151 // handle transition mode152 if (mode === 'out-in') {153 // return placeholder node and queue update when leave finishes154 this._leaving = true155 mergeVNodeHook(oldData, 'afterLeave', () => {156 this._leaving = false157 this.$forceUpdate()158 })159 return placeholder(h, rawChild)160 } else if (mode === 'in-out') {161 if (isAsyncPlaceholder(child)) {162 return oldRawChild163 }164 let delayedLeave165 const performLeave = () => { delayedLeave() }166 mergeVNodeHook(data, 'afterEnter', performLeave)167 mergeVNodeHook(data, 'enterCancelled', performLeave)168 mergeVNodeHook(oldData, 'delayLeave', leave => { delayedLeave = leave })169 }170 }171 return rawChild172 }...
utils.js
Source: utils.js
...10function getFirstComponentChild (children) {11 if (Array.isArray(children)) {12 for (let i = 0; i < children.length; i++) {13 const c = children[i]14 if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {15 return c16 }17 }18 }19}20export {21 getFirstComponentChild,22 isAsyncPlaceholder,23 getComponentName,24 isDef...
get-first-component-child.js
Source: get-first-component-child.js
...4export function getFirstComponentChild (children: ?Array<VNode>): ?VNode {5 if (Array.isArray(children)) {6 for (let i = 0; i < children.length; i++) {7 const c = children[i]8 if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {9 return c10 }11 }12 }...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.click('input[name="q"]');7 await page.keyboard.type('Hello World');8 await page.keyboard.press('Enter');9 await page.waitForNavigation();10 await page.screenshot({ path: `example.png` });11 await browser.close();12})();
Using AI Code Generation
1const { isAsyncPlaceholder } = require('playwright/lib/utils/stackTrace');2console.log(isAsyncPlaceholder(new Error().stack));3const test = require('./test');4test('My Test', async ({ page }) => {5 await page.evaluate(() => {6 throw new Error('Error');7 });8});
Using AI Code Generation
1const { isAsyncPlaceholder } = require('playwright/lib/utils/structs.js');2console.log(isAsyncPlaceholder({ __asyncPlaceholder: true }));3console.log(isAsyncPlaceholder({ __asyncPlaceholder: false }));4console.log(isAsyncPlaceholder({ __asyncPlaceholder: 'true' }));5console.log(isAsyncPlaceholder({ __asyncPlaceholder: 'false' }));6console.log(typeof { __asyncPlaceholder: true }.__asyncPlaceholder === 'boolean');7console.log(typeof { __asyncPlaceholder: false }.__asyncPlaceholder === 'boolean');8console.log(typeof { __asyncPlaceholder: 'true' }.__asyncPlaceholder === 'boolean');9console.log(typeof { __asyncPlaceholder: 'false' }.__asyncPlaceholder === 'boolean');
Using AI Code Generation
1const { isAsyncPlaceholder } = require('playwright/lib/utils/stackTrace');2const asyncPlaceholder = async () => {3 throw new Error('Async Placeholder');4};5(async () => {6 try {7 await asyncPlaceholder();8 } catch (e) {9 console.log(isAsyncPlaceholder(e));10 }11})();
Using AI Code Generation
1const { isAsyncPlaceholder } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 await page.fill('input[name="q"]', 'Playwright');7 await page.click('input[type="submit"]');8 await page.waitForSelector('h3');9 const element = await page.$('h3');10 console.log(isAsyncPlaceholder(element));11 await browser.close();12})();13const { isAsyncPlaceholder } = require('playwright/lib/server/dom.js');14const { chromium } = require('playwright');15(async () => {16 const browser = await chromium.launch();17 const page = await browser.newPage();18 await page.fill('input[name="q"]', 'Playwright');19 await page.click('input[type="submit"]');20 await page.waitForSelector('h3');21 const element = await page.$('h3');22 console.log(isAsyncPlaceholder(element));23 await browser.close();24})();25Your name to display (optional):26Your name to display (optional):27Your name to display (optional):28Your name to display (optional):29const { chromium } = require('playwright');30(async () => {31 const browser = await chromium.launch();
Using AI Code Generation
1const { isAsyncPlaceholder } = require('playwright/lib/internal/asyncstack');2const { Page } = require('playwright/lib/page');3const { Playwright } = require('playwright/lib/server/playwright');4const { Browser } = require('playwright/lib/server/browser');5const { BrowserContext } = require('playwright/lib/server/browserContext');6const { Frame } = require('playwright/lib/server/frame');7const { ElementHandle } = require('playwright/lib/server/elementHandler');8const { JSHandle } = require('playwright/lib/server/javascript');9const page = new Page(new BrowserContext(new Browser(new Playwright()), null), null);10const frame = new Frame(page, null, null);11const element = new ElementHandle(frame, null, null);12const jsHandle = new JSHandle(element, null, null);13const isAsyncPlaceholderResult = isAsyncPlaceholder(jsHandle);14console.log("isAsyncPlaceholderResult: " + isAsyncPlaceholderResult);
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
})
Check out the latest blogs from LambdaTest on this topic:
Native apps are developed specifically for one platform. Hence they are fast and deliver superior performance. They can be downloaded from various app stores and are not accessible through browsers.
One of the essential parts when performing automated UI testing, whether using Selenium or another framework, is identifying the correct web elements the tests will interact with. However, if the web elements are not located correctly, you might get NoSuchElementException in Selenium. This would cause a false negative result because we won’t get to the actual functionality check. Instead, our test will fail simply because it failed to interact with the correct element.
Smartphones have changed the way humans interact with technology. Be it travel, fitness, lifestyle, video games, or even services, it’s all just a few touches away (quite literally so). We only need to look at the growing throngs of smartphone or tablet users vs. desktop users to grasp this reality.
As part of one of my consulting efforts, I worked with a mid-sized company that was looking to move toward a more agile manner of developing software. As with any shift in work style, there is some bewilderment and, for some, considerable anxiety. People are being challenged to leave their comfort zones and embrace a continuously changing, dynamic working environment. And, dare I say it, testing may be the most ‘disturbed’ of the software roles in agile development.
LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
Get 100 minutes of automation test minutes FREE!!