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How to use isInternalComponentType method in Playwright Internal

Best JavaScript code snippet using playwright-internal

636abfinstantiateReactComponent.js

Source: 636abfinstantiateReactComponent.js

...18    }19  }20  return '';21}22function isInternalComponentType(type) {23  return typeof type === 'function' && typeof type.prototype !== 'undefined' && typeof type.prototype.mountComponent === 'function' && typeof type.prototype.receiveComponent === 'function';24}25var nextDebugID = 1;26function instantiateReactComponent(node, shouldHaveDebugID) {27  var instance;28  if (node === null || node === false) {29    instance = ReactEmptyComponent.create(instantiateReactComponent);30  } else if (typeof node === 'object') {31    var element = node;32    invariant(element && (typeof element.type === 'function' || typeof element.type === 'string'), 'Element type is invalid: expected a string (for built-in components) ' + 'or a class/function (for composite components) but got: %s.%s', element.type == null ? element.type : typeof element.type, getDeclarationErrorAddendum(element._owner));33    if (typeof element.type === 'string') {34      instance = ReactHostComponent.createInternalComponent(element);35    } else if (isInternalComponentType(element.type)) {36      instance = new element.type(element);37      if (!instance.getHostNode) {38        instance.getHostNode = instance.getNativeNode;39      }40    } else {41      instance = new ReactCompositeComponentWrapper(element);42    }43  } else if (typeof node === 'string' || typeof node === 'number') {44    instance = ReactHostComponent.createInstanceForText(node);45  } else {46    invariant(false, 'Encountered invalid React node of type %s', typeof node);47  }48  if (__DEV__) {49    warning(typeof instance.mountComponent === 'function' && typeof instance.receiveComponent === 'function' && typeof instance.getHostNode === 'function' && typeof instance.unmountComponent === 'function', 'Only React Components can be mounted.');...

21bd91instantiateReactComponent.js

Source: 21bd91instantiateReactComponent.js

...20}21}22return'';23}24function isInternalComponentType(type){25return(26typeof type==='function'&&27typeof type.prototype!=='undefined'&&28typeof type.prototype.mountComponent==='function'&&29typeof type.prototype.receiveComponent==='function');30}31var nextDebugID=1;32function instantiateReactComponent(node,shouldHaveDebugID){33var instance;34if(node===null||node===false){35instance=ReactEmptyComponent.create(instantiateReactComponent);36}else if(typeof node==='object'){37var element=node;38invariant(39element&&(typeof element.type==='function'||40typeof element.type==='string'),41'Element type is invalid: expected a string (for built-in components) '+42'or a class/function (for composite components) but got: %s.%s',43element.type==null?element.type:typeof element.type,44getDeclarationErrorAddendum(element._owner));45if(typeof element.type==='string'){46instance=ReactHostComponent.createInternalComponent(element);47}else if(isInternalComponentType(element.type)){48instance=new element.type(element);49if(!instance.getHostNode){50instance.getHostNode=instance.getNativeNode;51}52}else{53instance=new ReactCompositeComponentWrapper(element);54}55}else if(typeof node==='string'||typeof node==='number'){56instance=ReactHostComponent.createInstanceForText(node);57}else{58invariant(59false,60'Encountered invalid React node of type %s',61typeof node);...

f49bb0instantiateReactComponent.js

Source: f49bb0instantiateReactComponent.js

...20}21}22return'';23}24function isInternalComponentType(type){25return(26typeof type==='function'&&27typeof type.prototype!=='undefined'&&28typeof type.prototype.mountComponent==='function'&&29typeof type.prototype.receiveComponent==='function');30}31var nextDebugID=1;32function instantiateReactComponent(node,shouldHaveDebugID){33var instance;34if(node===null||node===false){35instance=ReactEmptyComponent.create(instantiateReactComponent);36}else if(typeof node==='object'){37var element=node;38invariant(39element&&(typeof element.type==='function'||40typeof element.type==='string'),41'Element type is invalid: expected a string (for built-in components) '+42'or a class/function (for composite components) but got: %s.%s',43element.type==null?element.type:typeof element.type,44getDeclarationErrorAddendum(element._owner));45if(typeof element.type==='string'){46instance=ReactHostComponent.createInternalComponent(element);47}else if(isInternalComponentType(element.type)){48instance=new element.type(element);49if(!instance.getHostNode){50instance.getHostNode=instance.getNativeNode;51}52}else{53instance=new ReactCompositeComponentWrapper(element);54}55}else if(typeof node==='string'||typeof node==='number'){56instance=ReactHostComponent.createInstanceForText(node);57}else{58invariant(59false,60'Encountered invalid React node of type %s',61typeof node);...

58bf32instantiateReactComponent.js

Source: 58bf32instantiateReactComponent.js

...20}21}22return'';23}24function isInternalComponentType(type){25return(26typeof type==='function'&&27typeof type.prototype!=='undefined'&&28typeof type.prototype.mountComponent==='function'&&29typeof type.prototype.receiveComponent==='function');30}31var nextDebugID=1;32function instantiateReactComponent(node,shouldHaveDebugID){33var instance;34if(node===null||node===false){35instance=ReactEmptyComponent.create(instantiateReactComponent);36}else if(typeof node==='object'){37var element=node;38invariant(39element&&(typeof element.type==='function'||40typeof element.type==='string'),41'Element type is invalid: expected a string (for built-in components) '+42'or a class/function (for composite components) but got: %s.%s',43element.type==null?element.type:typeof element.type,44getDeclarationErrorAddendum(element._owner));45if(typeof element.type==='string'){46instance=ReactHostComponent.createInternalComponent(element);47}else if(isInternalComponentType(element.type)){48instance=new element.type(element);49if(!instance.getHostNode){50instance.getHostNode=instance.getNativeNode;51}52}else{53instance=new ReactCompositeComponentWrapper(element);54}55}else if(typeof node==='string'||typeof node==='number'){56instance=ReactHostComponent.createInstanceForText(node);57}else{58invariant(59false,60'Encountered invalid React node of type %s',61typeof node);...

7c1675instantiateReactComponent.js

Source: 7c1675instantiateReactComponent.js

...20}21}22return'';23}24function isInternalComponentType(type){25return(26typeof type==='function'&&27typeof type.prototype!=='undefined'&&28typeof type.prototype.mountComponent==='function'&&29typeof type.prototype.receiveComponent==='function');30}31var nextDebugID=1;32function instantiateReactComponent(node,shouldHaveDebugID){33var instance;34if(node===null||node===false){35instance=ReactEmptyComponent.create(instantiateReactComponent);36}else if(typeof node==='object'){37var element=node;38invariant(39element&&(typeof element.type==='function'||40typeof element.type==='string'),41'Element type is invalid: expected a string (for built-in components) '+42'or a class/function (for composite components) but got: %s.%s',43element.type==null?element.type:typeof element.type,44getDeclarationErrorAddendum(element._owner));45if(typeof element.type==='string'){46instance=ReactHostComponent.createInternalComponent(element);47}else if(isInternalComponentType(element.type)){48instance=new element.type(element);49if(!instance.getHostNode){50instance.getHostNode=instance.getNativeNode;51}52}else{53instance=new ReactCompositeComponentWrapper(element);54}55}else if(typeof node==='string'||typeof node==='number'){56instance=ReactHostComponent.createInstanceForText(node);57}else{58invariant(59false,60'Encountered invalid React node of type %s',61typeof node);...

instantiateReactComponent.js

Source: instantiateReactComponent.js

...3var ReactHostComponent = require('./ReactHostComponent')4var ReactCompositeComponentWrapper = function(element) {5  this.construct(element)6}7function isInternalComponentType(type) {8  return (9    typeof type === 'function' &&10    typeof type.prototype !== 'undefined' &&11    typeof type.prototype.mountComponent === 'function' &&12    typeof type.prototype.receiveComponent === 'function'13  )14}15function instantiateReactComponent(node, shouldHaveDebugID) {16  var instance17  if (node === null || node === false) {18    instance = ReactEmptyComponent.create(instantiateReactComponent)19  } else if (typeof node === 'object') {20    var element = node21    var type = element.type22    if (typeof type === 'string') {23      instance = ReactHostComponent.createInternalComponent(element)24    } else if (isInternalComponentType(element.type)) {25      instance = new element.type(element)26    } else {27      instance = new ReactCompositeComponentWrapper(element)28    }29  } else if (typeof node === 'string' || typeof node === 'number') {30    instance = ReactHostComponent.createInstanceForText(node)31  } else {32  }33  instance._mountIndex = 034  instance._mountImage = null35  36  return instance37}38Object.assign(...

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  const isInternalComponentType = await page.evaluate(() => {7    return window._playwrightInternal.isInternalComponentType('Button');8  });9  console.log(isInternalComponentType);10  await browser.close();11})();12isInternalComponentType(componentType)

Using AI Code Generation

1const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');2const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');3const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');4const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');5const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');6const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');7const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');8const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');9const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');10const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');11const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');12const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');13const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');14const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');15const { isInternalComponentType } = require('@playwright/test/lib/internalComponentType');

Using AI Code Generation

1const { InternalComponentType } = require('@playwright/test');2console.log(InternalComponentType.isInternalComponentType('foo'));3const { InternalComponentType } = require('@playwright/test');4console.log(InternalComponentType.isInternalComponentType('foo'));5import { InternalComponentType } from '@playwright/test';6console.log(InternalComponentType.isInternalComponentType('foo'));7import { InternalComponentType } from '@playwright/test';8console.log(InternalComponentType.isInternalComponentType('foo'));9import { InternalComponentType } from '@playwright/test';10console.log(InternalComponentType.isInternalComponentType('foo'));11const { InternalComponentType } = require('@playwright/test');12console.log(InternalComponentType.isInternalComponentType('foo'));13const { InternalComponentType } = require('@playwright/test');14console.log(InternalComponentType.isInternalComponentType('foo'));15import { InternalComponentType } from '@playwright/test';16console.log(InternalComponentType.isInternalComponentType('foo'));17import { InternalComponentType } from '@playwright/test';18console.log(InternalComponentType.isInternalComponentType('foo'));19import { InternalComponentType } from '@playwright/test';20console.log(InternalComponentType.isInternalComponentType('foo'));21const { InternalComponentType

Using AI Code Generation

1const { InternalComponentType } = require('@playwright/test');2const internalComponentType = new InternalComponentType();3const isInternalComponentType = internalComponentType.isInternalComponentType('test');4console.log(isInternalComponentType);5const { InternalComponentType } = require('@playwright/test');6const internalComponentType = new InternalComponentType();7const isInternalComponentType = internalComponentType.isInternalComponentType('frame');8console.log(isInternalComponentType);9const { InternalComponentType } = require('@playwright/test');10const internalComponentType = new InternalComponentType();11const isInternalComponentType = internalComponentType.isInternalComponentType('page');12console.log(isInternalComponentType);13const { InternalComponentType } = require('@playwright/test');14const internalComponentType = new InternalComponentType();15const isInternalComponentType = internalComponentType.isInternalComponentType('worker');16console.log(isInternalComponentType);17const { InternalComponentType } = require('@playwright/test');18const internalComponentType = new InternalComponentType();19const isInternalComponentType = internalComponentType.isInternalComponentType('browser');20console.log(isInternalComponentType);21const { InternalComponentType } = require('@playwright/test');22const internalComponentType = new InternalComponentType();23const isInternalComponentType = internalComponentType.isInternalComponentType('context');24console.log(isInternalComponentType);25const { InternalComponentType } = require('@playwright/test');26const internalComponentType = new InternalComponentType();27const isInternalComponentType = internalComponentType.isInternalComponentType('browserContext');28console.log(isInternalComponentType);

Using AI Code Generation

1const { PlaywrightInternalComponentType } = require('@playwright/test/lib/test/page/page');2const { Page } = require('@playwright/test/lib/test/page');3const { ElementHandle } = require('@playwright/test/lib/test/page');4const { InternalComponentType } = require('@playwright/test/lib/test/page/page');5const { PlaywrightInternalComponentType } = require('@playwright/test/lib/test/page/page');6const { Page } = require('@playwright/test/lib/test/page');7const { ElementHandle } = require('@playwright/test/lib/test/page');8const { InternalComponentType } = require('@playwright/test/lib/test/page/page');9const { PlaywrightInternalComponentType } = require('@playwright/test/lib/test/page/page');10const { Page } = require('@playwright/test/lib/test/page');11const { ElementHandle } = require('@playwright/test/lib/test/page');12const { InternalComponentType } = require('@playwright/test/lib/test/page/page');13const { PlaywrightInternalComponentType } = require('@playwright/test/lib/test/page/page');14const { Page } = require('@playwright/test/lib/test/page');15const { ElementHandle } = require('@playwright/test/lib/test/page');16const { InternalComponentType } = require('@playwright/test/lib/test/page/page');17const { PlaywrightInternalComponentType } = require('@playwright/test/lib/test/page/page');18const { Page } = require('@playwright/test/lib/test/page');19const { ElementHandle } = require('@playwright/test/lib/test/page');20const { InternalComponentType } = require('@playwright/test/lib/test/page/page');21const { PlaywrightInternalComponentType } = require('@playwright/test/lib/test/page/page');22const { Page } = require('@playwright/test/lib/test/page');23const { ElementHandle } = require('@playwright/test/lib/test/page');24const { InternalComponentType } = require('@playwright/test/lib/test/page/page');25const { PlaywrightInternalComponentType } = require

Using AI Code Generation

1const { isInternalComponentType } = require("playwright/lib/server/dom");2const { parseSelector } = require("playwright/lib/server/common/selectorParser");3const result = isInternalComponentType(selector);4console.log(result);5const { parseSelector } = require("playwright/lib/server/common/selectorParser");6const result = isInternalComponentType(selector);7console.log(result);8I tried to import the isInternalComponentType method from playwright/lib/server/dom but it gives the following error:9I tried to import the isInternalComponentType method from playwright/lib/server/dom but it gives the following error:10const { isInternalComponentType } = require("playwright/lib/server/dom");11const { isInternalComponentType } = require("playwright/lib/server/dom");

StackOverFlow community discussions

Questions

Discussion

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

firefox browser does not start in playwright

Running Playwright in Azure Function

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

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

firefox browser does not start in playwright

Well this is one way, but not sure if it will work for all possible locators!.

// Get a selector from a playwright locator
import { Locator } from "@playwright/test";
export function extractSelector(locator: Locator) {
    const selector = locator.toString();
    const parts = selector.split("@");
    if (parts.length !== 2) { throw Error("extractSelector: susupect that this is not a locator"); }
    if (parts[0] !== "Locator") { throw Error("extractSelector: did not find locator"); }
    return parts[1];
}

https://stackoverflow.com/questions/72044959/is-it-possible-to-get-the-selector-from-a-locator-object-in-playwright

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/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

Assuming you are not running test with the --runinband flag, the simple answer is yes but it depends ????

There is a pretty comprehensive GitHub issue jest#6957 that explains certain cases of when tests are run concurrently or in parallel. But it seems to depend on a lot of edge cases where jest tries its best to determine the fastest way to run the tests given the circumstances.

To my knowledge there is no way to force jest to run in parallel.

Aside

Have you considered using playwright instead of puppeteer with jest? Playwright has their own internally built testing library called @playwright/test that is used in place of jest with a similar API. This library allows for explicitly defining test groups in a single file to run in parallel (i.e. test.describe.parallel) or serially (i.e. test.describe.serial). Or even to run all tests in parallel via a config option.

// parallel
test.describe.parallel('group', () => {
  test('runs in parallel 1', async ({ page }) => {});
  test('runs in parallel 2', async ({ page }) => {});
});

// serial
test.describe.serial('group', () => {
  test('runs first', async ({ page }) => {});
  test('runs second', async ({ page }) => {});
});

https://stackoverflow.com/questions/73497773/how-to-run-a-list-of-test-suites-in-a-single-file-concurrently-in-jest

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

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