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How to use StringValuedToken method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ios.js

...557    }558    function DelimToken(code) {559        return this.value = String.fromCharCode(code), this;560    }561    function StringValuedToken() {562        return this;563    }564    function IdentifierToken(val) {565        this.value = [], this.append(val);566    }567    function FunctionToken(val) {568        this.value = val.finish().value;569    }570    function AtKeywordToken(val) {571        this.value = [], this.append(val);572    }573    function HashToken(val) {574        this.value = [], this.append(val);575    }576    function StringToken(val) {577        this.value = [], this.append(val);578    }579    function URLToken(val) {580        this.value = [], this.append(val);581    }582    function NumberToken(val) {583        this.value = [], this.append(val), this.type = "integer";584    }585    function PercentageToken(val) {586        val.finish(), this.value = val.value, this.repr = val.repr;587    }588    function DimensionToken(val, unit) {589        val.finish(), this.num = val.value, this.unit = [], this.repr = val.repr, this.append(unit);590    }591    function UnicodeRangeToken(start, end) {592        return start = parseInt(stringFromCodeArray(start), 16), end = void 0 === end ? start + 1 : parseInt(stringFromCodeArray(end), 16), 593        start > maximumallowedcodepoint && (end = start), start > end && (end = start), 594        end > maximumallowedcodepoint && (end = maximumallowedcodepoint), this.start = start, 595        this.end = end, this;596    }597    var between = function(num, first, last) {598        return num >= first && last >= num;599    }, maximumallowedcodepoint = 1114111;600    CSSParserToken.prototype.finish = function() {601        return this;602    }, CSSParserToken.prototype.toString = function() {603        return this.tokenType;604    }, CSSParserToken.prototype.toSourceString = CSSParserToken.prototype.toString, 605    CSSParserToken.prototype.toJSON = function() {606        return this.toString();607    }, BadStringToken.prototype = new CSSParserToken(), BadStringToken.prototype.tokenType = "BADSTRING", 608    BadURLToken.prototype = new CSSParserToken(), BadURLToken.prototype.tokenType = "BADURL", 609    WhitespaceToken.prototype = new CSSParserToken(), WhitespaceToken.prototype.tokenType = "WHITESPACE", 610    WhitespaceToken.prototype.toString = function() {611        return "WS";612    }, WhitespaceToken.prototype.toSourceString = function() {613        return " ";614    }, CDOToken.prototype = new CSSParserToken(), CDOToken.prototype.tokenType = "CDO", 615    CDCToken.prototype = new CSSParserToken(), CDCToken.prototype.tokenType = "CDC", 616    ColonToken.prototype = new CSSParserToken(), ColonToken.prototype.tokenType = ":", 617    SemicolonToken.prototype = new CSSParserToken(), SemicolonToken.prototype.tokenType = ";", 618    OpenCurlyToken.prototype = new CSSParserToken(), OpenCurlyToken.prototype.tokenType = "{", 619    CloseCurlyToken.prototype = new CSSParserToken(), CloseCurlyToken.prototype.tokenType = "}", 620    OpenSquareToken.prototype = new CSSParserToken(), OpenSquareToken.prototype.tokenType = "[", 621    CloseSquareToken.prototype = new CSSParserToken(), CloseSquareToken.prototype.tokenType = "]", 622    OpenParenToken.prototype = new CSSParserToken(), OpenParenToken.prototype.tokenType = "(", 623    CloseParenToken.prototype = new CSSParserToken(), CloseParenToken.prototype.tokenType = ")", 624    EOFToken.prototype = new CSSParserToken(), EOFToken.prototype.tokenType = "EOF", 625    DelimToken.prototype = new CSSParserToken(), DelimToken.prototype.tokenType = "DELIM", 626    DelimToken.prototype.toString = function() {627        return "DELIM(" + this.value + ")";628    }, DelimToken.prototype.toSourceString = function() {629        return this.value;630    }, StringValuedToken.prototype = new CSSParserToken(), StringValuedToken.prototype.append = function(val) {631        if (val instanceof Array) for (var i = 0; i < val.length; i++) this.value.push(val[i]); else this.value.push(val);632        return !0;633    }, StringValuedToken.prototype.finish = function() {634        return this.value = this.valueAsString(), this;635    }, StringValuedToken.prototype.ASCIImatch = function(str) {636        return this.valueAsString().toLowerCase() == str.toLowerCase();637    }, StringValuedToken.prototype.valueAsString = function() {638        return "string" == typeof this.value ? this.value : stringFromCodeArray(this.value);639    }, StringValuedToken.prototype.valueAsCodes = function() {640        if ("string" == typeof this.value) {641            for (var ret = [], i = 0; i < this.value.length; i++) ret.push(this.value.charCodeAt(i));642            return ret;643        }644        return this.value.filter(function(e) {645            return e;646        });647    }, IdentifierToken.prototype = new StringValuedToken(), IdentifierToken.prototype.tokenType = "IDENT", 648    IdentifierToken.prototype.toString = function() {649        return "IDENT(" + this.value + ")";650    }, IdentifierToken.prototype.toSourceString = function() {651        return this.value;652    }, FunctionToken.prototype = new StringValuedToken(), FunctionToken.prototype.tokenType = "FUNCTION", 653    FunctionToken.prototype.toString = function() {654        return "FUNCTION(" + this.value + ")";655    }, FunctionToken.prototype.toSourceString = function() {656        return this.value;657    }, AtKeywordToken.prototype = new StringValuedToken(), AtKeywordToken.prototype.tokenType = "AT-KEYWORD", 658    AtKeywordToken.prototype.toString = function() {659        return "AT(" + this.value + ")";660    }, AtKeywordToken.prototype.toSourceString = function() {661        return "@" + this.value;662    }, HashToken.prototype = new StringValuedToken(), HashToken.prototype.tokenType = "HASH", 663    HashToken.prototype.toString = function() {664        return "HASH(" + this.value + ")";665    }, HashToken.prototype.toSourceString = function() {666        return "#" + this.value;667    }, StringToken.prototype = new StringValuedToken(), StringToken.prototype.tokenType = "STRING", 668    StringToken.prototype.toString = function() {669        return '"' + this.value + '"';670    }, StringToken.prototype.toSourceString = StringToken.prototype.toString, URLToken.prototype = new StringValuedToken(), 671    URLToken.prototype.tokenType = "URL", URLToken.prototype.toString = function() {672        return "URL(" + this.value + ")";673    }, URLToken.prototype.toSourceString = function() {674        return "url('" + this.value + "')";675    }, NumberToken.prototype = new StringValuedToken(), NumberToken.prototype.tokenType = "NUMBER", 676    NumberToken.prototype.toString = function() {677        return "integer" == this.type ? "INT(" + this.value + ")" : "NUMBER(" + this.value + ")";678    }, NumberToken.prototype.toSourceString = function() {679        return "integer" == this.type ? this.value : this.value;680    }, NumberToken.prototype.finish = function() {681        return this.repr = this.valueAsString(), this.value = 1 * this.repr, Math.abs(this.value) % 1 != 0 && (this.type = "number"), 682        this;683    }, PercentageToken.prototype = new CSSParserToken(), PercentageToken.prototype.tokenType = "PERCENTAGE", 684    PercentageToken.prototype.toString = function() {685        return "PERCENTAGE(" + this.value + ")";686    }, PercentageToken.prototype.toSourceString = function() {687        return this.value + "%";688    }, DimensionToken.prototype = new CSSParserToken(), DimensionToken.prototype.tokenType = "DIMENSION", 689    DimensionToken.prototype.toString = function() {...

vimtokenizer.js

Source: vimtokenizer.js

...769        }770        DelimToken.prototype.toSourceString = function() {771            return this.value;772        }773        function StringValuedToken() {774            return this;775        }776        StringValuedToken.prototype = new CSSParserToken;777        StringValuedToken.prototype.append = function(val) {778            if ( val instanceof Array) {779                for (var i = 0; i < val.length; i++) {780                    this.value.push(val[i]);781                }782            } else {783                this.value.push(val);784            }785            return true;786        }787        StringValuedToken.prototype.finish = function() {...

tokenizer.js

Source: tokenizer.js

...515DelimToken.prototype = new CSSParserToken;516DelimToken.prototype.tokenType = "DELIM";517DelimToken.prototype.toString = function() { return "DELIM("+this.value+")"; }518DelimToken.prototype.toSourceString = function() { return this.value; }519function StringValuedToken() { return this; }520StringValuedToken.prototype = new CSSParserToken;521StringValuedToken.prototype.append = function(val) {522	if(val instanceof Array) {523		for(var i = 0; i < val.length; i++) {524			this.value.push(val[i]);525		}526	} else {527		this.value.push(val);528	}529	return true;530}531StringValuedToken.prototype.finish = function() {532	this.value = this.valueAsString();533	return this;...

css-tokenizer.js

Source: css-tokenizer.js

...502}503DelimToken.prototype = new CSSParserToken;504DelimToken.prototype.tokenType = "DELIM";505DelimToken.prototype.toString = function() { return "DELIM("+this.value+")"; }506function StringValuedToken() { return this; }507StringValuedToken.prototype = new CSSParserToken;508StringValuedToken.prototype.append = function(val) {509  if(val instanceof Array) {510    for(var i = 0; i < val.length; i++) {511      this.value.push(val[i]);512    }513  } else {514    this.value.push(val);515  }516  return true;517}518StringValuedToken.prototype.finish = function() {519  this.value = stringFromCodeArray(this.value);520  return this;...

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.fill('[name="q"]', 'playwright');7  await page.click('[name="btnK"]');8  await page.waitForNavigation();9  await page.screenshot({ path: `example.png` });10  await browser.close();11})();

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.fill('input[name="q"]', 'playwright');7  await page.press('input[name="q"]', 'Enter');8  await page.waitForSelector('text=Playwright');9  const element = await page.$('text=Playwright');10  await element.evaluate(element => element.scrollIntoViewIfNeeded());11  await page.waitForTimeout(1000);12  await page.screenshot({path: 'google-playwright.png'});13  await browser.close();14})();15const {chromium} = require('playwright');16(async () => {17  const browser = await chromium.launch();18  const context = await browser.newContext();19  const page = await context.newPage();20  await page.fill('input[name="q"]', 'playwright');21  await page.press('input[name="q"]', 'Enter');22  await page.waitForSelector('text=Playwright');23  const element = await page.$('text=Playwright');24  await element.evaluate(element => element.scrollIntoViewIfNeeded());25  await page.waitForTimeout(1000);26  await page.screenshot({path: 'google-playwright.png'});27  await browser.close();28})();29 PASS  test.js (7.9s)30 PASS  test2.js (8.5s)

Using AI Code Generation

1const playwright = require("playwright");2(async () => {3  const browser = await playwright["chromium"].launch({4  });5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.fill("input[aria-label='Search']", "Playwright");8  await page.press("input[aria-label='Search']", "Enter");9  await page.waitForTimeout(5000);10  await browser.close();11})();12const playwright = require("playwright");13(async () => {14  const browser = await playwright["chromium"].launch({15  });16  const context = await browser.newContext();17  const page = await context.newPage();18  await page.fill("input[aria-label='Search']", "Playwright");19  await page.press("input[aria-label='Search']", "Enter");20  await page.waitForTimeout(5000);21  await browser.close();22})();23const playwright = require("playwright");24(async () => {25  const browser = await playwright["chromium"].launch({26  });27  const context = await browser.newContext();28  const page = await context.newPage();29  await page.fill("input[aria-label='Search']", "Playwright");30  await page.press("input[aria-label='Search']", "Enter");31  await page.waitForTimeout(5000);32  await browser.close();33})();34const playwright = require("playwright");35(async () => {36  const browser = await playwright["chromium"].launch({37  });38  const context = await browser.newContext();39  const page = await context.newPage();40  await page.fill("input[aria-label='Search']", "Playwright");41  await page.press("input[aria-label='Search']",

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.click('text=Get started');7  await page.click('text=Docs');8  await page.click('text=API');9  const token = await page.evaluate(() => {10    return window.__playwright__internal__stringValuedToken();11  });12  console.log(token);13  await page.close();14  await context.close();15  await browser.close();16})();17const { chromium } = require('playwright');18let context;19let page;20let token;21async function setup() {22  const browser = await chromium.launch({ headless: false });23  context = await browser.newContext();24  page = await context.newPage();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const value = await page.$eval('div[aria-label="Search"] input', (e) => e.getAttribute('aria-label'));6  console.log(value);7  await browser.close();8})();9const { chromium } = require('playwright');10(async () => {11  const browser = await chromium.launch();12  const page = await browser.newPage();13  const value = await page.$eval('div[aria-label="Search"] input', (e) => e.getAttribute('aria-label'));14  console.log(value);15  await browser.close();16})();17const { chromium } = require('playwright');18(async () => {19  const browser = await chromium.launch();20  const page = await browser.newPage();21  const value = await page.$eval('div[aria-label="Search"] input', (e) => e.getAttribute('aria-label'));22  console.log(value);23  await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27  const browser = await chromium.launch();28  const page = await browser.newPage();29  const value = await page.$eval('div[aria-label="Search"] input', (e) => e.getAttribute('aria-label'));30  console.log(value);31  await browser.close();32})();

Using AI Code Generation

1const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');2const token = new StringValuedToken('tokenValue');3console.log(token.value);4const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');5const token = new StringValuedToken('tokenValue');6console.log(token.value);7const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');8const token = new StringValuedToken('tokenValue');9console.log(token.value);10const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');11const token = new StringValuedToken('tokenValue');12console.log(token.value);13const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');14const token = new StringValuedToken('tokenValue');15console.log(token.value);16const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');17const token = new StringValuedToken('tokenValue');18console.log(token.value);19const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');20const token = new StringValuedToken('tokenValue');21console.log(token.value);22const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');23const token = new StringValuedToken('tokenValue');24console.log(token.value);25const { StringValuedToken } = require('playwright/lib/utils/tokenTypes');26const token = new StringValuedToken('tokenValue');27console.log(token.value);28const {

StackOverFlow community discussions

Questions

Discussion

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

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

Running Playwright in Azure Function

firefox browser does not start in playwright

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

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

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

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Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.