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How to use validateProp method in Playwright Internal

Best JavaScript code snippet using playwright-internal

validateProp.test.js

2describe('Validate Property', () => {3	test("Throws when the prop isn't of the correct type", () => {4		const schema = new Schema({});5		function validate() {6			schema.validateProp(7				[],8				{9					type: String10				},11				'propName'12			);13		}14		expect(validate).toThrow({15			propPath: 'propName',16			message: 'The field is not of the correct type'17		});18	});19	test('Throws when a prop is required but empty', () => {20		const schema = new Schema({});21		function validate() {22			schema.validateProp(23				undefined,24				{25					type: String,26					required: true27				},28				'propName'29			);30		}31		expect(validate).toThrow({32			propPath: 'propName',33			message: 'The field is required'34		});35	});36	test("Doesn't throw when a prop is not required but is empty", () => {37		const schema = new Schema({});38		function validate() {39			// undefined40			schema.validateProp(41				undefined,42				{43					type: String44				},45				'propName'46			);47			// null48			schema.validateProp(49				null,50				{51					type: String52				},53				'propName'54			);55			// empty string56			schema.validateProp(57				'',58				{59					type: String60				},61				'propName'62			);63		}64		expect(validate).not.toThrow();65	});66	test('Uses custom IsEmpty specified in types', () => {67		const schema = new Schema({});68		function validate() {69			schema.validateProp(70				'',71				{72					type: String,73					required: true74				},75				'propName'76			);77		}78		expect(validate).toThrow(/The field is required/);79	});80	describe('Enums', () => {81		test("Throws when the value doesn't match any option", () => {82			const schema = new Schema({});83			function validate() {84				schema.validateProp(85					'hi there!',86					{87						type: String,88						enum: ['hello', 'world?']89					},90					'propName'91				);92			}93			expect(validate).toThrow({94				propPath: 'propName',95				message: 'The field can only be one of: hello, world?'96			});97		});98		test("Doesn't throw when the field isn't required and the value is empty", () => {99			const schema = new Schema({});100			function validate() {101				schema.validateProp(102					undefined,103					{104						type: String,105						enum: ['hello', 'world?']106					},107					'propName'108				);109			}110			expect(validate).not.toThrow();111		});112	});113	test('Calls the array validator on arrays', () => {114		const schema = new Schema({});115		function validate() {116			try {117				schema.validateProp(118					['Hello', 42],119					{120						type: Array,121						child: [122							{123								type: String124							}125						]126					},127					'propName'128				);129			} catch (e) {130				return e;131			}132		}133		expect(validate()).toEqual(134			new Map([['propName[1]', 'The field is not of the correct type']])135		);136	});137	describe('Nested Objects', () => {138		test("Throws when a prop's value has incorrect type", () => {139			const schema = new Schema({});140			function validate() {141				try {142					schema.validateProp(143						{144							firstLayer: {145								name: 42146							}147						},148						{149							type: Object,150							child: {151								firstLayer: {152									type: Object,153									child: {154										name: {155											type: String156										}157									}158								}159							}160						},161						'propName'162					);163				} catch (e) {164					return e;165				}166			}167			expect(validate()).toEqual(168				new Map([['firstLayer.name', 'The field is not of the correct type']])169			);170		});171		test('Throws when a required field is empty', () => {172			const schema = new Schema({});173			function validate() {174				try {175					schema.validateProp(176						{177							firstLayer: {}178						},179						{180							type: Object,181							child: {182								firstLayer: {183									type: Object,184									child: {185										name: {186											type: String,187											required: true188										}189									}190								}191							}192						},193						'propName'194					);195				} catch (e) {196					return e;197				}198			}199			expect(validate()).toEqual(200				new Map([['firstLayer.name', 'The field is required']])201			);202		});203	});204});205describe('Error message', () => {206	test('Is correct when field is required but empty, and type is incorrect', () => {207		const schema = new Schema({});208		function validate() {209			schema.validateProp(210				false,211				{212					type: Number,213					required: true214				},215				'IM NOT A NUMBER!'216			);217		}218		expect(validate).toThrow(/The field is not of the correct type/);219	});...

PhoneField.jsx

Source: PhoneField.jsx

...26  const { type, validate: validateProp, ...restProps } = props;27  const validate = React.useCallback(28    value => {29      if (validateProp) {30        return validateProp(value);31      }32      if (type === 'mobile') {33        return mustBeMobilePhone(value);34      }35      return mustBePhone(value);36    },37    [validateProp, type],38  );39  return (40    <MaskField41      validate={validate}42      mask={PHONE_MASK}43      beforeMaskedValueChange={beforeMaskedValueChange}44      maskChar={null}...

helpers.spec.js

Source: helpers.spec.js

...45    it('should return true when a valid property and user are passed', () => {46      const user = {47        firstName: 'Bacon'48      };49      const result = helpers.validateProp(user, 'firstName');50      expect(result).to.equal(true);51    });52    it('should return false when the property name does not exist in the user object', () => {53      const user = {54        falseProp: 'jam'55      };56      const result = helpers.validateProp(user, 'firstName');57      expect(result).to.equal(false);58    });59    it('should return false when the user object value is not a string', () => {60      const user = {61        falseProp: 4262      };63      const result = helpers.validateProp(user, 'falseProp');64      expect(result).to.equal(false);65    });66    it('should return false when the user object value is an empty string', () => {67      const user = {68        falseProp: ''69      };70      const result = helpers.validateProp(user, 'falseProp');71      expect(result).to.equal(false);72    });73  });74  describe('isTrue', () => {75    it('should be a function', () => {76      expect(helpers.isTrue).to.be.a('function');77    });78    it('should return true if the validation result is true', () => {79      expect(helpers.isTrue(true)).to.equal(true);80    });81    82    it('should return false if the validation result is false', () => {83      expect(helpers.isTrue(false)).to.equal(false);84    });...

Field.js

Source: Field.js

1import { asyncForEach } from '../utils/common';2export const getValidateFunctionsArray = validateProp => {3  if (!validateProp || (Array.isArray(validateProp) && !validateProp.length)) return [];4  const validate = !Array.isArray(validateProp) ? [validateProp] : validateProp;5  return validate;6};7export const validateField = async (value, validateFunctions) => {8  let errorsStack = [];9  if (!validateFunctions.length) return errorsStack;10  await asyncForEach(validateFunctions, async errorChecker => {11    if (typeof errorChecker !== 'function')12      throw new Error('"validate" prop must be Array<Function> or Function');13    const checkerResult = await errorChecker(value);14    if (checkerResult && typeof checkerResult === 'string') {15      errorsStack.push(checkerResult);16    }17  });18  return errorsStack;...

phone.js

Source: phone.js

...8        this.price = price;9        this.validate();10    }11    validate() {12        validateProp(this.name, 'string', 'name should not be empty');13        validateProp(this.description, 'string', 'description should not be empty');14        validateProp(this.images, 'array', 'images should not be empty');15        validateProp(this.defaultImage, 'string', 'default image should not be empty');16        validateProp(this.price, 'number', 'price should not be 0 or negative');17    }18}...

user.js

Source: user.js

...8        this.role = role;9        this.validate(fromUpdate);10    }11    validate(fromUpdate) {12        validateProp(this.username, 'string', 'username should not be empty');13        validateProp(this.fullname, 'string', 'fullname should not be empty');14        validateProp(this.email, 'string', 'email should not be empty');15        if (!fromUpdate) {16            validateProp(this.password, 'string', 'password should not be empty');17        }18    }19}...

review.js

Source: review.js

...7        this.description = description;8        this.validate();9    }10    validate() {11        validateProp(this.title, 'string', 'title should not be empty');12        validateProp(this.postedOn, 'dateTime', 'date of submission should not be empty');13        validateProp(this.shortDescription, 'string', 'short description should not be empty');14        validateProp(this.description, 'string', 'description should not be empty');15    }16}...

helpers.js

Source: helpers.js

...8  if (user.id) {9    return false;10  }11  for (let prop in user) {12    if (validateProp(user, prop)) {13      validation.push(true);14    } else {15      validation.push(false);16    }17  }18  if (!validation.every(isTrue)) {19    return false;20  }21  return true;22}23function validateProp (user, propName) {24  if (!user[propName] || typeof user[propName] !== 'string' || user[propName] === '') {25    return false;26  }...

Using AI Code Generation

1const { validateProp } = require('playwright/lib/utils/utils');2validateProp('deviceScaleFactor', 1, 'number');3validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3 });4validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1 });5validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor' });6validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor', strict: true });7validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor', strict: true, nullable: true });8validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor', strict: true, nullable: true, optional: true });9const { validateProp } = require('playwright/lib/utils/utils');10validateProp('deviceScaleFactor', 1, 'number');11validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3 });12validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1 });13validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor' });14validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor', strict: true });15validateProp('deviceScaleFactor', 1, 'number', { min: 1, max: 3, step: 0.1, name: 'deviceScaleFactor', strict: true, nullable: true });16validateProp('deviceScaleFactor', 1,

Using AI Code Generation

1const { validateProp } = require('@playwright/test/lib/server/validate');2const { expect } = require('@playwright/test');3const { test, expect } = require('@playwright/test');4const { validateProp } = require('@playwright/test/lib/server/validate');5const { expect } = require('@playwright/test');6test('validate prop', async ({}) => {7    const { error } = validateProp('timeout', 1000, { type: 'number', min: 0 });8    expect(error).toBe(undefined);9});

Using AI Code Generation

1const { validateProp } = require('playwright/lib/utils/utils');2validateProp('value', 'value', false, 'string');3validateProp('value', 'value', false, 'string', 'number');4validateProp('value', 'value', true, 'string', 'number');5validateProp('value', 'value', true, 'string', 'number', 'boolean');6validateProp('value', 'value', true, 'string', 'number', 'boolean', 'object');7const { validateBrowserContextOptions } = require('playwright/lib/utils/utils');8validateBrowserContextOptions({9  viewport: { width: 100, height: 100 },10  httpCredentials: { username: 'user', password: 'pass' },11  geolocation: { longitude: 10, latitude: 10 },12  extraHTTPHeaders: { foo: 'bar' },13  httpState: { cookies: [{ name: 'name', value: 'value' }] },14  geolocationOverride: { longitude: 10, latitude: 10 },15  permissionsOverride: { permissions: ['geolocation'], origins: ['origin'] },16  extraHTTPHeaders: { foo: 'bar' },17  httpState: { cookies: [{ name: 'name', value: 'value' }] },18  geolocationOverride: { longitude: 10, latitude: 10 },19  permissionsOverride: { permissions: ['geolocation'], origins: ['origin'] },20  extraHTTPHeaders: { foo: 'bar' },21  httpState: { cookies: [{ name: 'name', value: 'value' }] },

Using AI Code Generation

1const { validateProp } = require('playwright/lib/utils/utils');2const { assert } = require('chai');3describe('validateProp', function() {4  it('should pass if value is valid', async function() {5    const isValid = validateProp('timeout', 1000);6    assert.equal(isValid, undefined);7  });8  it('should throw error if value is invalid', async function() {9    assert.throws(() => {10      validateProp('timeout', '1000');11    }, 'Invalid value "1000" for option "timeout"');12  });13});

Using AI Code Generation

1const {validateProp} = require('playwright/lib/internal/validator');2validateProp('page', 'goto', url, 'string', true);3console.log(validateProp('page', 'goto', url, 'string', true));4const {validateProp} = require('playwright/lib/internal/validator');5validateProp('page', 'goto', url, 'string', true);6console.log(validateProp('page', 'goto', url, 'string', true));7const {validateProp} = require('playwright/lib/internal/validator');8validateProp('page', 'goto', url, 'string', true);9console.log(validateProp('page', 'goto', url, 'string', true));10const {validateProp} = require('playwright/lib/internal/validator');11validateProp('page', 'goto', url, 'string', true);12console.log(validateProp('page', 'goto', url, 'string', true));13const {validateProp} = require('playwright/lib/internal/validator');14validateProp('page', 'goto', url, 'string', true);15console.log(validateProp('page', 'goto', url, 'string', true));16const {validateProp} = require('playwright/lib/internal/validator');17validateProp('page', 'goto', url, 'string', true);18console.log(validateProp('page', 'goto', url, 'string', true));19const {validateProp} = require('playwright/lib/internal/validator');20validateProp('page', 'goto', url, 'string', true);21console.log(validateProp('page', 'goto', url, 'string', true));22const {validateProp} = require('playwright/lib/internal/validator');23validateProp('page', 'goto', url, 'string', true);24console.log(validateProp('page', 'goto', url, 'string', true));25const {

Using AI Code Generation

1const { validateProp } = require('playwright/lib/server/dom.js');2const { expect } = require('chai');3describe('Internal API test', () => {4  it('should validate the properties', () => {5    const result = validateProp('aria-label', 'Hello World');6    expect(result).to.be.equal('Hello World');7  });8});

Using AI Code Generation

1const { validateProp } = require('playwright-core/lib/server/dom.js');2const expected = {3  foo: {4  },5  bar: {6  }7};8const actual = {9};10const result = validateProp(actual, expected);11console.log(result);12{13}14const { validateProp } = require('playwright-core/lib/server/dom.js');15const expected = {16  foo: {17  },18  bar: {19  }20};21const actual = {22};23const result = validateProp(actual, expected);24console.log(result);25{26}

Using AI Code Generation

1const { validateProp } = require('playwright/lib/utils/utils');2const { test } = require('@playwright/test');3test('Validate Prop Test', () => {4    const expectedProp = 'name';5    const expectedValue = 'myName';6    const actualProp = 'name';7    const actualValue = 'myName';8    const result = validateProp(actualProp, expectedProp, actualValue, expectedValue);9    console.log(result);10});

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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Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
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.