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How to use validateSupportedValues method in Playwright Internal

Best JavaScript code snippet using playwright-internal

Using AI Code Generation

1const { validateSupportedValues } = require('@playwright/test/lib/utils/validation');2validateSupportedValues('browserName', 'chromium', ['chromium', 'webkit', 'firefox']);3const { validateBrowserArgs } = require('@playwright/test/lib/utils/validation');4validateBrowserArgs(['--no-sandbox'], 'chromium');5const { validateBrowserEnv } = require('@playwright/test/lib/utils/validation');6validateBrowserEnv({ FOO: 'bar' }, 'chromium');7const { validateBrowserLaunchOptions } = require('@playwright/test/lib/utils/validation');8validateBrowserLaunchOptions({ foo: 'bar' }, 'chromium');9const { validateTimeoutOptions } = require('@playwright/test/lib/utils/validation');10validateTimeoutOptions({ timeout: 1000 }, 'chromium');11const { validateBrowserContextOptions } = require('@playwright/test/lib/utils/validation');12validateBrowserContextOptions({ viewport: { width: 500, height: 500 } }, 'chromium');13const { validatePageOptions } = require('@playwright/test/lib/utils/validation');14validatePageOptions({ foo: 'bar' }, 'chromium');15const { validateLaunchPersistentOptions } = require('@playwright/test/lib/utils/validation');16validateLaunchPersistentOptions({ foo: 'bar' }, 'chromium');17const { validateSelectors } = require('@playwright/test/lib/utils/validation');18validateSelectors({ 'foo': 'bar' }, 'chromium');19const { validateVideoOptions } = require('@playwright/test/lib/utils/validation');20validateVideoOptions({ foo: 'bar' }, 'chromium');21const { validateTraceOptions } = require('@playwright/test/lib/utils/validation');22validateTraceOptions({ foo: 'bar' }, 'chromium');

Using AI Code Generation

1const { validateSupportedValues } = require('playwright/lib/utils/validateOptions');2const supportedValues = ['a', 'b', 'c'];3const value = 'd';4const result = validateSupportedValues(value, supportedValues);5console.log(result);6const { validateSupportedValues } = require('playwright/lib/utils/validateOptions');7const supportedValues = ['a', 'b', 'c'];8const value = 'd';9const result = validateSupportedValues(value, supportedValues);10console.log(result);

Using AI Code Generation

1const { validateSupportedValues } = require('playwright/lib/server/chromium/crNetworkManager');2const expectedValues = ['value1', 'value2', 'value3'];3const actualValue = 'value1';4validateSupportedValues(actualValue, expectedValues);5const expectedValues = ['value1', 'value2', 'value3'];6const actualValue = 'value4';7validateSupportedValues(actualValue, expectedValues);8const expectedValues = ['value1', 'value2', 'value3'];9const actualValue = 'value3';10validateSupportedValues(actualValue, expectedValues);11const expectedValues = ['value1', 'value2', 'value3'];12const actualValue = 'value3';13validateSupportedValues(actualValue, expectedValues, 'myOption');14const expectedValues = ['value1', 'value2', 'value3'];15const actualValue = 'value4';16validateSupportedValues(actualValue, expectedValues, 'myOption');17const expectedValues = ['value1', 'value2', 'value3'];18const actualValue = 'value3';19validateSupportedValues(actualValue, expectedValues, 'myOption', 'myClass');20const expectedValues = ['value1', 'value2', 'value3'];21const actualValue = 'value4';22validateSupportedValues(actualValue, expectedValues, 'myOption', 'myClass');23const expectedValues = ['value1', 'value2', 'value3'];24const actualValue = 'value4';25validateSupportedValues(actualValue, expectedValues,

Using AI Code Generation

1const playwright = require('playwright');2const { validateSupportedValues } = require('playwright/lib/utils/validation');3const supportedValues = ['chromium', 'firefox', 'webkit'];4const value = 'firefox';5validateSupportedValues(value, supportedValues);6const supportedValues = ['chromium', 'firefox', 'webkit'];7const value = 'webkit';8validateSupportedValues(value, supportedValues);9const supportedValues = ['chromium', 'firefox', 'webkit'];10const value = 'webkit';11validateSupportedValues(value, supportedValues);12const supportedValues = ['chromium', 'firefox', 'webkit'];13const value = 'webkit';14validateSupportedValues(value, supportedValues);15const supportedValues = ['chromium', 'firefox', 'webkit'];16const value = 'webkit';17validateSupportedValues(value, supportedValues);18const supportedValues = ['chromium', 'firefox', 'webkit'];19const value = 'webkit';20validateSupportedValues(value, supportedValues);21const supportedValues = ['chromium', 'firefox', 'webkit'];22const value = 'webkit';23validateSupportedValues(value, supportedValues);24const supportedValues = ['chromium', 'firefox', 'webkit'];25const value = 'webkit';26validateSupportedValues(value, supportedValues);27const supportedValues = ['chromium', 'firefox', 'webkit'];28const value = 'webkit';29validateSupportedValues(value, supportedValues);30const supportedValues = ['chromium', 'firefox', 'webkit'];31const value = 'webkit';32validateSupportedValues(value, supportedValues);33const supportedValues = ['chromium', 'firefox', 'webkit'];34const value = 'webkit';35validateSupportedValues(value, supportedValues);36const supportedValues = ['chromium', 'firefox', 'webkit'];37const value = 'webkit';38validateSupportedValues(value, supportedValues);39const supportedValues = ['chromium', 'firefox', 'webkit'];40const value = 'webkit';41validateSupportedValues(value, supportedValues);

Using AI Code Generation

1const { validateSupportedValues } = require('playwright-core/lib/server/supplements/utils/supportedValues');2const supportedValues = ['chrome', 'firefox', 'webkit'];3const value = 'chrome';4const result = validateSupportedValues(value, supportedValues);5const { validateBrowserContextOptions } = require('playwright-core/lib/server/browserContext');6const options = { viewport: null, ignoreHTTPSErrors: true, userAgent: 'user-agent' };7const result = validateBrowserContextOptions(options);8const { getViewportSize } = require('playwright-core/lib/server/supplements/utils/geometry');9const viewport = { width: 1280, height: 720 };10const result = getViewportSize(viewport);11const { assertBrowserContextIsNotOwned } = require('playwright-core/lib/server/browserContext');12const context = browser.newContext();13assertBrowserContextIsNotOwned(context);14* **[Vishal Jadhav](

Using AI Code Generation

1const { validateSupportedValues } = require('@playwright/test/lib/utils/validation');2const options = {3};4const supportedValues = {5};6validateSupportedValues(options, supportedValues);

StackOverFlow community discussions

Questions

Discussion

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

Is it possible to get the selector from a locator object 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

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

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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