How to use getRenderedHostOrTextFromComponent method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactDOMComponentTree.js

Source: ReactDOMComponentTree.js Github

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...16 if (!children.hasOwnProperty(name)) {17 continue;18 }19 var childInst = children[name];20 var childID = getRenderedHostOrTextFromComponent(childInst)._domID;21 for (; childNode !== null; childNode = childNode.nextSibling) {22 if (shouldPrecacheNode(childNode, childID)) {23 precacheNode(childInst, childNode);24 continue outer;25 }26 }27 }28}29function getNodeFromInstance(inst) {30 if (inst._hostNode) {31 return inst._hostNode;32 }33 var parents = [];34 while(!inst._hostNode) {35 parents.push(inst);36 inst = inst._hostParent;37 }38 for (;parents.length; inst = parents.pop()) {39 precacheChildNode(inst, inst._hostNode);40 }41 return inst._hostNode;42}43function getInstanceFromNode(node) {44 var inst = getClosetInstanceFromNode(node);45 if (inst != null && inst._hostNode === node) {46 return inst;47 } else {48 return null;49 }50}51function getClosestInstanceFromNode(node) {52 if (node[internalInstanceKey]) {53 return node[internalInstanceKey];54 }55 var parents = [];56 while (!node[internalInstanceKey]) {57 parents.push(node);58 if (node.parentNode) {59 node = node.parentNode;60 } else {61 return null;62 }63 }64 var closest;65 var inst;66 for (; node && (inst = node[internalInstanceKey]); node = parents.pop()) {67 closest = inst;68 if (parents.length) {69 precacheChildNode(inst, node);70 }71 }72 return closest;73}74function precacheNode(inst, node) {75 var hostInst = getRenderedHostOrTextFromComponent(inst);76 hostInst._hostNode = node;77};78function uncacheNode(inst) {79 var node = inst._hostNode;80 if (node) {81 delete node[internalInstanceKey];82 inst._hostNode = null;83 }84}85function getRenderedHostOrTextFromComponent(component) {86 var rendered;87 while((88 rendered = component._renderedComponent89 )) {90 component = rendered;91 }92 return component;93}94var ReactDOMComponentTree = {95 getNodeFromInstance,96 getInstanceFromNode,97 precacheNode,98 uncacheNode,99};...

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ReactNativeComponentTree.js

Source: ReactNativeComponentTree.js Github

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...17 *18 * This is pretty polymorphic but unavoidable with the current structure we have19 * for `_renderedChildren`.20 */​21function getRenderedHostOrTextFromComponent(component) {22 var rendered;23 while ((rendered = component._renderedComponent)) {24 component = rendered;25 }26 return component;27}28/​**29 * Populate `_hostNode` on the rendered host/​text component with the given30 * DOM node. The passed `inst` can be a composite.31 */​32function precacheNode(inst, tag) {33 var nativeInst = getRenderedHostOrTextFromComponent(inst);34 instanceCache[tag] = nativeInst;35}36function uncacheNode(inst) {37 var tag = inst._rootNodeID;38 if (tag) {39 delete instanceCache[tag];40 }41}42function getInstanceFromTag(tag) {43 return instanceCache[tag] || null;44}45function getTagFromInstance(inst) {46 invariant(inst._rootNodeID, 'All native instances should have a tag.');47 return inst._rootNodeID;...

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f407c4ReactNativeComponentTree.js

Source: f407c4ReactNativeComponentTree.js Github

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1'use strict';2var invariant = require('fbjs/​lib/​invariant');3var instanceCache = {};4function getRenderedHostOrTextFromComponent(component) {5 var rendered;6 while (rendered = component._renderedComponent) {7 component = rendered;8 }9 return component;10}11function precacheNode(inst, tag) {12 var nativeInst = getRenderedHostOrTextFromComponent(inst);13 instanceCache[tag] = nativeInst;14}15function uncacheNode(inst) {16 var tag = inst._rootNodeID;17 if (tag) {18 delete instanceCache[tag];19 }20}21function getInstanceFromTag(tag) {22 return instanceCache[tag] || null;23}24function getTagFromInstance(inst) {25 invariant(inst._rootNodeID, 'All native instances should have a tag.');26 return inst._rootNodeID;...

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da6241ReactNativeComponentTree.js

Source: da6241ReactNativeComponentTree.js Github

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1'use strict';2var invariant=require('fbjs/​lib/​invariant');3var instanceCache={};4function getRenderedHostOrTextFromComponent(component){5var rendered;6while(rendered=component._renderedComponent){7component=rendered;8}9return component;10}11function precacheNode(inst,tag){12var nativeInst=getRenderedHostOrTextFromComponent(inst);13instanceCache[tag]=nativeInst;14}15function uncacheNode(inst){16var tag=inst._rootNodeID;17if(tag){18delete instanceCache[tag];19}20}21function getInstanceFromTag(tag){22return instanceCache[tag]||null;23}24function getTagFromInstance(inst){25invariant(inst._rootNodeID,'All native instances should have a tag.');26return inst._rootNodeID;...

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dc6540ReactNativeComponentTree.js

Source: dc6540ReactNativeComponentTree.js Github

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1'use strict';2var invariant=require('fbjs/​lib/​invariant');3var instanceCache={};4function getRenderedHostOrTextFromComponent(component){5var rendered;6while(rendered=component._renderedComponent){7component=rendered;8}9return component;10}11function precacheNode(inst,tag){12var nativeInst=getRenderedHostOrTextFromComponent(inst);13instanceCache[tag]=nativeInst;14}15function uncacheNode(inst){16var tag=inst._rootNodeID;17if(tag){18delete instanceCache[tag];19}20}21function getInstanceFromTag(tag){22return instanceCache[tag]||null;23}24function getTagFromInstance(inst){25invariant(inst._rootNodeID,'All native instances should have a tag.');26return inst._rootNodeID;...

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1a4553ReactNativeComponentTree.js

Source: 1a4553ReactNativeComponentTree.js Github

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1'use strict';2var invariant=require('fbjs/​lib/​invariant');3var instanceCache={};4function getRenderedHostOrTextFromComponent(component){5var rendered;6while(rendered=component._renderedComponent){7component=rendered;8}9return component;10}11function precacheNode(inst,tag){12var nativeInst=getRenderedHostOrTextFromComponent(inst);13instanceCache[tag]=nativeInst;14}15function uncacheNode(inst){16var tag=inst._rootNodeID;17if(tag){18delete instanceCache[tag];19}20}21function getInstanceFromTag(tag){22return instanceCache[tag]||null;23}24function getTagFromInstance(inst){25invariant(inst._rootNodeID,'All native instances should have a tag.');26return inst._rootNodeID;...

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26d685ReactNativeComponentTree.js

Source: 26d685ReactNativeComponentTree.js Github

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1'use strict';2var invariant=require('fbjs/​lib/​invariant');3var instanceCache={};4function getRenderedHostOrTextFromComponent(component){5var rendered;6while(rendered=component._renderedComponent){7component=rendered;8}9return component;10}11function precacheNode(inst,tag){12var nativeInst=getRenderedHostOrTextFromComponent(inst);13instanceCache[tag]=nativeInst;14}15function uncacheNode(inst){16var tag=inst._rootNodeID;17if(tag){18delete instanceCache[tag];19}20}21function getInstanceFromTag(tag){22return instanceCache[tag]||null;23}24function getTagFromInstance(inst){25invariant(inst._rootNodeID,'All native instances should have a tag.');26return inst._rootNodeID;...

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13828eReactNativeComponentTree.js

Source: 13828eReactNativeComponentTree.js Github

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1'use strict';2var invariant=require('fbjs/​lib/​invariant');3var instanceCache={};4function getRenderedHostOrTextFromComponent(component){5var rendered;6while(rendered=component._renderedComponent){7component=rendered;8}9return component;10}11function precacheNode(inst,tag){12var nativeInst=getRenderedHostOrTextFromComponent(inst);13instanceCache[tag]=nativeInst;14}15function uncacheNode(inst){16var tag=inst._rootNodeID;17if(tag){18delete instanceCache[tag];19}20}21function getInstanceFromTag(tag){22return instanceCache[tag]||null;23}24function getTagFromInstance(inst){25invariant(inst._rootNodeID,'All native instances should have a tag.');26return inst._rootNodeID;...

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Using AI Code Generation

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1const {getRenderedHostOrTextFromComponent} = require('playwright/​lib/​server/​dom.js');2const {chromium} = require('playwright');3const path = require('path');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const selector = 'body > div > div:nth-child(2) > div:nth-child(1) > div:nth-

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require('@playwright/​test/​lib/​utils');2const { test } = require('@playwright/​test');3test('test', async ({ page }) => {4 await page.setContent(`<div>test</​div>`);5 const div = await page.$('div');6 const text = await getRenderedHostOrTextFromComponent(div);7});8{9 "dependencies": {10 }11}

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require('@playwright/​test/​lib/​server/​frames');2const { chromium } = require('playwright');3const { test } = require('@playwright/​test');4test('test', async ({ page }) => {5 const renderedHost = await getRenderedHostOrTextFromComponent(page, 'html');6 console.log(renderedHost);7});8{9 attributes: {10 },11 {12 attributes: {},13 {14 attributes: {},15 },16 {17 },18 {19 },20 {21 },22 {23 },24 {25 },26 {27 },28 {29 },30 {31 },32 {33 },34 {

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require("@playwright/​test/​lib/​server/​frames");2const { Page } = require("@playwright/​test");3const { Frame } = require("@playwright/​test/​lib/​server/​frames");4const page = new Page();5const frame = new Frame(page, null, null, null);6const component = await frame.$("selector");7const text = await getRenderedHostOrTextFromComponent(component);8console.log(text);

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require('playwright/​lib/​server/​dom.js');2const { getComponent } = require('playwright/​lib/​server/​dom.js');3const { parseSelector } = require('playwright/​lib/​server/​common/​selectors.js');4const selector = 'css=div[role="dialog"] >> css=div[role="button"] >> text=OK';5const { parsed } = parseSelector(selector);6const component = getComponent(parsed);7const output = getRenderedHostOrTextFromComponent(component);8console.log(output);

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require('@playwright/​test').testImpl;2const { chromium } = require('playwright');3const { assert } = require('chai');4(async () => {5 const browser = await chromium.launch();6 const page = await browser.newPage();7 const element = await page.$('a');8 const text = await getRenderedHostOrTextFromComponent(element);9 assert.equal(text, 'Docs');10 await browser.close();11})();

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require('playwright');2(async () => {3 const { page } = await browser.newContext();4 await page.setContent(`<div>Test</​div>`);5 const div = await page.$('div');6 const result = await getRenderedHostOrTextFromComponent(div);7})();

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Using AI Code Generation

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1const { getRenderedHostOrTextFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​base');2const { getComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​component');3const { getComponentName } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentName');4const { getComponentType } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentType');5const { getComponentValue } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValue');6const { getComponentValuePath } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValuePath');7const { getComponentValueText } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueText');8const { getComponentValueTexts } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTexts');9const { getComponentValueTree } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTree');10const { getComponentValueTrees } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTrees');11const { getComponentValues } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValues');12const { getComponentValueTextsFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTextsFromComponent');13const { getComponentValueTreesFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTreesFromComponent');14const { getComponentValueFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueFromComponent');15const { getComponentValueTextFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTextFromComponent');16const { getComponentValueTreeFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTreeFromComponent');17const { getComponentValuePathFromComponent } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValuePathFromComponent');18const { getComponentValueTextFromComponentValue } = require('@playwright/​test/​lib/​server/​traceViewer/​ui/​components/​componentValueTextFromComponentValue');19const component = getComponent(trace

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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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