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How to use shouldRemoveAttribute method in Playwright Internal

Best JavaScript code snippet using playwright-internal

html-fragment.js

1/*global require, exports */2var Component = require("ui/component").Component,3    defaultOptions = Object.deepFreeze({4        allowedTags: [5            'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'p', 'a', 'ul', 'ol',6            'nl', 'li', 'b', 'i', 'img', 'strong', 'em', 'strike', 'code', 'hr',7            'br', 'div', 'table', 'thead', 'caption', 'tbody', 'tr', 'th', 'td',8            'pre', 'span'9        ],10        allowedAttributes: {11            '*': [12                'href', 'align', 'alt', 'center', 'bgcolor', 'src', 'title',13                'height', 'width', 'data-*', 'style'14            ],15            a: ['href', 'name', 'target'],16            img: ['src']17        }18    });19/**20 *21 * @class HtmlFragment22 * @extends Component23 */24var HtmlFragment = exports.HtmlFragment = Component.specialize(/** @lends HtmlFragment# */ {25    _value: {26        value: null27    },28    value: {29        set: function (value) {30            if (this._value !== value) {31                if (value !== void 0 && value !== null) {32                    this._value = value;33                } else {34                    this._value = null;35                }36                this.needsSanitizeHtml = true;37                this.needsDraw = true;38            }39        },40        get: function () {41            return this._value;42        }43    },44    allowedTags: {45        value: null46    },47    allowedAttributes: {48        value: null49    },50    defaultAllowedTags: {51        get: function () {52            return defaultOptions.allowedTags;53        }54    },55    defaultAllowedAttributes: {56        get: function () {57            return defaultOptions.allowedAttributes;58        }59    },60    _sanitizeNode: {61        value: function (parent, allowedTags, allowedAttributes) {62            if (parent) {63                var children = parent.children;64                65                if (children) {66                    var allowedAttributesForTag, shouldRemoveAttribute,67                        childAttributes, attribute, attributeName, attributeValue,68                        delegateResponse, childTagName, child, ii, ll;69                    for (var i = 0, l = children.length; i < l; i++) {70                        child = children[i];71                        childTagName = child.tagName.toLowerCase();72                        if (allowedTags && allowedTags.indexOf(childTagName) === -1) {73                            parent.removeChild(child);74                            i--;75                            l--;76                        } else {77                            childAttributes = child.attributes;78                            allowedAttributesForTag = allowedAttributes[childTagName] ||79                                allowedAttributes['*'];80                            81                            for (ii = 0, ll = childAttributes.length; ii < ll; ii++) {82                                shouldRemoveAttribute = false;83                                attribute = childAttributes[ii];84                                attributeName = attribute.name;85                                attributeValue = attribute.value;86                                if (allowedAttributesForTag &&87                                    allowedAttributesForTag.indexOf(attributeName) === -188                                ) {89                                    shouldRemoveAttribute = true;90                                    if (attributeName.startsWith('data-') &&91                                        allowedAttributesForTag.indexOf('data-*') > -192                                    ) {93                                        shouldRemoveAttribute = false;94                                    }95                                }96                                if (shouldRemoveAttribute) {97                                    delegateResponse = this.callDelegateMethod(98                                        'htmlFragmentWillRemoveNodeAttribute',99                                        this,100                                        child,101                                        attribute102                                    );103                                    if (typeof delegateResponse === 'boolean') {104                                        shouldRemoveAttribute = delegateResponse;105                                    }106                                    if (shouldRemoveAttribute) {107                                        child.removeAttribute(attributeName);108                                        ll--;109                                        ii--;110                                    }111                                } else {112                                    delegateResponse = this.callDelegateMethod(113                                        'htmlFragmentWillUseValueForNodeAttribute',114                                        this,115                                        attributeValue,116                                        child,117                                        attributeName118                                    );119                                    if (typeof delegateResponse === 'string') {120                                        attributeValue = delegateResponse;121                                    }122                                    child.setAttribute(attributeName, attributeValue);123                                }124                            }125                            this._sanitizeNode(child, allowedTags, allowedAttributes);126                        }127                    }128                }                129            }130            return parent;131        }132    },133    _sanitizeHtml: {134        value: function (html, allowedTags, allowedAttributes) {135            var doc;136            if (window.DOMParser) {137                try {138                    doc = new DOMParser().parseFromString(html, "text/html");139                } catch (DOMParserError) {140                    console.error(DOMParserError);141                }142                if (doc) {143                    this._sanitizeNode(144                        doc.body,145                        allowedTags,146                        allowedAttributes147                    );148                }149            }150            return doc;151        }152    },153    draw: {154        value: function () {155            if (this.needsSanitizeHtml) {156                this.element.innerHTML = '';157                if (this.value) {158                    var doc = this._sanitizeHtml(159                        this.value,160                        this.allowedTags || defaultOptions.allowedTags,161                        this.allowedAttributes || defaultOptions.allowedAttributes162                    );163    164                    if (doc) {165                        var range = doc.createRange();166                        range.selectNodeContents(doc.body);167                        this.element.appendChild(range.extractContents());168                        range.selectNodeContents(doc.head);169                        this.element.appendChild(range.extractContents());170                    }171                }172            }173        }174    }175  176}, {177    178    DefaultSanitizerOptions: {179        value: defaultOptions180    }181        ...

DOMPropertyOperations.js

Source: DOMPropertyOperations.js

...38          const value = node.getAttribute(attributeName);39          if (value === '') {40            return true;41          }42          if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {43            return value;44          }45          if (value === '' + (expected: any)) {46            return expected;47          }48          return value;49        }50      } else if (node.hasAttribute(attributeName)) {51        if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {52          // We had an attribute but shouldn't have had one, so read it53          // for the error message.54          return node.getAttribute(attributeName);55        }56        if (propertyInfo.type === BOOLEAN) {57          // If this was a boolean, it doesn't matter what the value is58          // the fact that we have it is the same as the expected.59          return expected;60        }61        // Even if this property uses a namespace we use getAttribute62        // because we assume its namespaced name is the same as our config.63        // To use getAttributeNS we need the local name which we don't have64        // in our config atm.65        stringValue = node.getAttribute(attributeName);66      }67      if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {68        return stringValue === null ? expected : stringValue;69      } else if (stringValue === '' + (expected: any)) {70        return expected;71      } else {72        return stringValue;73      }74    }75  }76}77/**78 * Get the value for a attribute on a node. Only used in DEV for SSR validation.79 * The third argument is used as a hint of what the expected value is. Some80 * attributes have multiple equivalent values.81 */82export function getValueForAttribute(83  node: Element,84  name: string,85  expected: mixed,86): mixed {87  if (__DEV__) {88    if (!isAttributeNameSafe(name)) {89      return;90    }91    if (!node.hasAttribute(name)) {92      return expected === undefined ? undefined : null;93    }94    const value = node.getAttribute(name);95    if (value === '' + (expected: any)) {96      return expected;97    }98    return value;99  }100}101/**102 * Sets the value for a property on a node.103 *104 * @param {DOMElement} node105 * @param {string} name106 * @param {*} value107 */108export function setValueForProperty(109  node: Element,110  name: string,111  value: mixed,112  isCustomComponentTag: boolean,113) {114  const propertyInfo = getPropertyInfo(name);115  if (shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag)) {116    return;117  }118  if (shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag)) {119    value = null;120  }121  // If the prop isn't in the special list, treat it as a simple attribute.122  if (isCustomComponentTag || propertyInfo === null) {123    if (isAttributeNameSafe(name)) {124      const attributeName = name;125      if (value === null) {126        node.removeAttribute(attributeName);127      } else {128        node.setAttribute(attributeName, '' + (value: any));129      }130    }131    return;132  }...

Using AI Code Generation

1const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const element = await page.$('input[name="q"]');8  console.log(shouldRemoveAttribute(element, 'name'));9  await browser.close();10})();11[Apache 2.0](LICENSE)

Using AI Code Generation

1const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');2const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');3const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');4const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');5const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');6const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');7const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');8const { shouldRemovecttribute } = require('playwright/lib/server/dom.js');9const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');10const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');11const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');

Using AI Code Generation

1const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');2const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');3const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');4const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');5const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');6const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');7const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');8const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');9const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');10const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');11const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');

Using AI Code Generation

1const { shouldRemoveAttribute } = require('@playwright/test/lib/server/frames');2const { Frame } = require('@playwright/test/lib/server/frames');3const { Page } = require('@playwright/test/lib/server/page');4const { ElementHandle } = require('@playwright/test/lib/server/dom');5const { JSHandle } = require('@playwright/test/lib/server/jsHandle');6const { debugError } = require('@playwright/test/lib/utils/debug');7const elementHandle = new ElementHandle(new Frame(new Page(null, null), null, null), null, null);8const jsHandle = new JSHandle(elementHandle, null, null);9const attribute = 'test';

Using AI Code Generation

1const { console.log(shouldRee } = requirmo'playwright-core/lib/server/supplements/recorder/recorderSupplement.jsv);2shouleRemoveAttribute('id', 'id');3shouldRemoveAttribute('dAttribute(jsHandle, attribute));4process.on('uncaughtException', (err) => debugError(err));5const { shouldSerializeAsCallArgument } = require('@playwright/test/lib/server/frames');6const { Frame } = require('@playwright/test/lib/server/frames');7const { Page } = require('@playwright/test/lib/server/page');8const { ElementHandle } = require('@playwright/test/lib/server/dom');9const { JSHandle } = require('@playwright/test/lib/server/jsHandle');10const { debugError } = require('@playwright/test/lib/utils/debug');11const elementHandle = new ElementHandle(new Frame(new Page(null, null), null, null), null, null);12const jsHandle = new JSHandle(elementHandle, null, null);13console.log(shouldSerializeAsCallArgument(jsHandle));14process.on('uncaughtException', (err) => debugError(err));15const { shouldWaitForNavigation } = require('@playwright/test/lib/server/frames');16const { Frame } = require('@playwright/test/lib

Using AI Code Generation

1const { shouldRemoveAttribute } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');2shouldRemoveAttribute('id', 'id');3shouldRemoveAttribute('data-test-id', 'data-test-id');4shouldRemoveAttribute('data-testid', 'data-testid');5shouldRemoveAttribute('data-test', 'data-test');6shouldRemoveAttribute('data-cy', 'data-cy');7shouldRemoveAttribute('data-test-selector', 'data-test-selector');8shouldRemoveAttribute('data-testname', 'data-testname');9shouldRemoveAttribute('data-test-name', 'data-test-name'

Using AI Code Generation

1const {2} = require("@playwright/test/lib/server/frames/frameImpl");3const {4} = require("@playwright/test");5test("shouldRemoveAttribute", async ({6}) => {7    console.log(result);8});

Using AI Code Generation

1const { shouldRemoveAttribute } = require('playwright/lib/server/supplements/recorder/recorderApp');2const result = shouldRemoveAttribute('name', 'value');3console.log(result);4const { Recorder } = require('playwright-recorder');5const recorder = new Recorder(page);6await recorder.start();

Using AI Code Generation

1const { shouldRemoveAttribute } = require('playwright/lib/server/dom.js');2const { parse } = require('playwright/lib/server/common/html.js');3const html = `<div class="a b c"></div>`;4const document = parse(html);5const element = document.querySelector('div');6shouldRemoveAttribute(element, 'class', 'a b');7console.log(element.outerHTML);8shouldRemoveAttribute(element, 'class', 'c');9console.log(element.outerHTML);10await recorder.stop();11const code = recorder.getCode();12### `new Recorder(page, options)`13### `recorder.start()`14### `recorder.stop()`15### `recorder.getCode()`16[MIT](

StackOverFlow community discussions

Questions

Discussion

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

Running Playwright in Azure Function

Is it possible to get the selector from a locator object 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

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

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

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