Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use _assertValueLink method in Playwright Internal

Best JavaScript code snippet using playwright-internal

LinkedValueUtils.src.js

Source:LinkedValueUtils.src.js

...15  };16  function _assertSingleLink(input) {17    ("production" !== process.env.NODE_ENV ? invariant(input.props.checkedLink == null || input.props.valueLink == null, 'Cannot provide a checkedLink and a valueLink. If you want to use ' + 'checkedLink, you probably don\'t want to use valueLink and vice versa.') : invariant(input.props.checkedLink == null || input.props.valueLink == null));18  }19  function _assertValueLink(input) {20    _assertSingleLink(input);21    ("production" !== process.env.NODE_ENV ? invariant(input.props.value == null && input.props.onChange == null, 'Cannot provide a valueLink and a value or onChange event. If you want ' + 'to use value or onChange, you probably don\'t want to use valueLink.') : invariant(input.props.value == null && input.props.onChange == null));22  }23  function _assertCheckedLink(input) {24    _assertSingleLink(input);25    ("production" !== process.env.NODE_ENV ? invariant(input.props.checked == null && input.props.onChange == null, 'Cannot provide a checkedLink and a checked property or onChange event. ' + 'If you want to use checked or onChange, you probably don\'t want to ' + 'use checkedLink') : invariant(input.props.checked == null && input.props.onChange == null));26  }27  function _handleLinkedValueChange(e) {28    this.props.valueLink.requestChange(e.target.value);29  }30  function _handleLinkedCheckChange(e) {31    this.props.checkedLink.requestChange(e.target.checked);32  }33  var LinkedValueUtils = {34    Mixin: {propTypes: {35        value: function(props, propName, componentName) {36          if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) {37            return;38          }39          return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');40        },41        checked: function(props, propName, componentName) {42          if (!props[propName] || props.onChange || props.readOnly || props.disabled) {43            return;44          }45          return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');46        },47        onChange: ReactPropTypes.func48      }},49    getValue: function(input) {50      if (input.props.valueLink) {51        _assertValueLink(input);52        return input.props.valueLink.value;53      }54      return input.props.value;55    },56    getChecked: function(input) {57      if (input.props.checkedLink) {58        _assertCheckedLink(input);59        return input.props.checkedLink.value;60      }61      return input.props.checked;62    },63    getOnChange: function(input) {64      if (input.props.valueLink) {65        _assertValueLink(input);66        return _handleLinkedValueChange;67      } else if (input.props.checkedLink) {68        _assertCheckedLink(input);69        return _handleLinkedCheckChange;70      }71      return input.props.onChange;72    }73  };74  module.exports = LinkedValueUtils;...

LinkedValueUtils.js

Source:LinkedValueUtils.js

...14  };15  function _assertSingleLink(input) {16    ("production" !== process.env.NODE_ENV ? invariant(input.props.checkedLink == null || input.props.valueLink == null, 'Cannot provide a checkedLink and a valueLink. If you want to use ' + 'checkedLink, you probably don\'t want to use valueLink and vice versa.') : invariant(input.props.checkedLink == null || input.props.valueLink == null));17  }18  function _assertValueLink(input) {19    _assertSingleLink(input);20    ("production" !== process.env.NODE_ENV ? invariant(input.props.value == null && input.props.onChange == null, 'Cannot provide a valueLink and a value or onChange event. If you want ' + 'to use value or onChange, you probably don\'t want to use valueLink.') : invariant(input.props.value == null && input.props.onChange == null));21  }22  function _assertCheckedLink(input) {23    _assertSingleLink(input);24    ("production" !== process.env.NODE_ENV ? invariant(input.props.checked == null && input.props.onChange == null, 'Cannot provide a checkedLink and a checked property or onChange event. ' + 'If you want to use checked or onChange, you probably don\'t want to ' + 'use checkedLink') : invariant(input.props.checked == null && input.props.onChange == null));25  }26  function _handleLinkedValueChange(e) {27    this.props.valueLink.requestChange(e.target.value);28  }29  function _handleLinkedCheckChange(e) {30    this.props.checkedLink.requestChange(e.target.checked);31  }32  var LinkedValueUtils = {33    Mixin: {propTypes: {34        value: function(props, propName, componentName) {35          if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) {36            return null;37          }38          return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');39        },40        checked: function(props, propName, componentName) {41          if (!props[propName] || props.onChange || props.readOnly || props.disabled) {42            return null;43          }44          return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');45        },46        onChange: ReactPropTypes.func47      }},48    getValue: function(input) {49      if (input.props.valueLink) {50        _assertValueLink(input);51        return input.props.valueLink.value;52      }53      return input.props.value;54    },55    getChecked: function(input) {56      if (input.props.checkedLink) {57        _assertCheckedLink(input);58        return input.props.checkedLink.value;59      }60      return input.props.checked;61    },62    getOnChange: function(input) {63      if (input.props.valueLink) {64        _assertValueLink(input);65        return _handleLinkedValueChange;66      } else if (input.props.checkedLink) {67        _assertCheckedLink(input);68        return _handleLinkedCheckChange;69      }70      return input.props.onChange;71    }72  };73  module.exports = LinkedValueUtils;...

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.click('text=Get started');6  await page.click('text=API');7  await page.click('text=BrowserContext');8  await page.click('text=BrowserContext.newPage');9  await page.click('text=Parameters');10  await page.click('text=apiName');11  await page._assertValueLink('text=apiName', 'apiName');12  await browser.close();13})();14page.textContent(link)15page.getAttribute(link, attributeName)16page.getAttribute(link, ‘href’)17page.getAttribute(link, ‘value’)18page.getAttribute(link, ‘title’)19page.getAttribute(link, ‘name’)20page.getAttribute(link, ‘id’)21page.getAttribute(link, ‘class’)22page.getAttribute(link, ‘data-qa’)23As an example, the following script uses the page.getAttribute(link, ‘href’) method to assert the value of the link “apiName”:24const { chromium } = require('playwright');25(async () => {26  const browser = await chromium.launch();

Using AI Code Generation

1const { chromium } = require("playwright");2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const input = await page.$("input");6  await input._assertValueLink();7  await browser.close();8})();

Using AI Code Generation

1const { _assertValueLink } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const input = await page.$('input[name="q"]');7  _assertValueLink(input);8  await browser.close();9})();10    at _assertValueLink (C:\Users\user\Documents\playwright\test.js:7:5)11    at processTicksAndRejections (internal/process/task_queues.js:93:5)

Using AI Code Generation

1const { assertValueLink } = require('playwright/lib/internal/stackTrace');2const { assert } = require('playwright/lib/internal/assert');3const { InternalAPI } = require('playwright/lib/internal/api');4const { ElementHandle } = require('playwright/lib/dom');5const { JSHandle } = require('playwright/lib/jsHandle');6const { Frame } = require('playwright/lib/frame');7const frame = new Frame();8const elementHandle = new ElementHandle();9const jsHandle = new JSHandle();10const valueLink = {11  toString: () => 'valueLink'12};13const result = InternalAPI._assertValueLink(valueLink, 'valueLink');14console.log(result);15const result1 = InternalAPI._assertValueLink(valueLink, 'valueLink1');16console.log(result1);17const result2 = InternalAPI._assertValueLink(valueLink, 'valueLink2');18console.log(result2);19const result3 = InternalAPI._assertValueLink(valueLink, 'valueLink3');20console.log(result3);21const result4 = InternalAPI._assertValueLink(valueLink, 'valueLink4');22console.log(result4);23const result5 = InternalAPI._assertValueLink(valueLink, 'valueLink5');24console.log(result5);25const result6 = InternalAPI._assertValueLink(valueLink, 'valueLink6');26console.log(result6);27const result7 = InternalAPI._assertValueLink(valueLink, 'valueLink7');28console.log(result7);29const result8 = InternalAPI._assertValueLink(valueLink, 'valueLink8');30console.log(result8);31const result9 = InternalAPI._assertValueLink(valueLink, 'valueLink9');32console.log(result9);33const result10 = InternalAPI._assertValueLink(valueLink, 'valueLink10');34console.log(result10);35const result11 = InternalAPI._assertValueLink(valueLink, 'valueLink11');36console.log(result11);37const result12 = InternalAPI._assertValueLink(valueLink, 'valueLink12');38console.log(result12);39const result13 = InternalAPI._assertValueLink(valueLink, 'valueLink13');40console.log(result13);41const result14 = InternalAPI._assertValueLink(valueLink, 'valueLink14');42console.log(result14);

Using AI Code Generation

1const { assert } = require('console');2const { Playwright } = require('playwright');3const { test } = require('playwright');4const { _assertValueLink } = require('playwright/lib/internal');5const { assert } = require('console');6const { Playwright } = require('playwright');7const { test } = require('playwright');8const { _assertValueLink } = require('playwright/lib/internal');9assert.equal(_assertValueLink, 'function');10assert.equal(_assertValueLink.name, '_assertValueLink');11assert.equal(_assertValueLink.length, 1);12assert.equal(_assertValueLink.toString(), 'function _assertValueLink() { [native code] }');13const { assert } = require('console');14const { Playwright } = require('playwright');15const { test } = require('playwright');16const { _assertValueLink } = require('playwright/lib/internal');17assert.equal(_assertValueLink, 'function');18assert.equal(_assertValueLink.name, '_assertValueLink');19assert.equal(_assertValueLink.length, 1);20assert.equal(_assertValueLink.toString(), 'function _assertValueLink() { [native code] }');21const { assert } = require('console');22const { Playwright } = require('playwright');23const { test } = require('playwright');24const { _assertValueLink } = require('playwright/lib/internal');25assert.equal(_assertValueLink, 'function');26assert.equal(_assertValueLink.name, '_assertValueLink');27assert.equal(_assertValueLink.length, 1);28assert.equal(_assertValueLink.toString(), 'function _assertValueLink() { [native code] }');29const { assert } = require('console');30const { Playwright } = require('playwright');31const { test } = require('playwright');32const { _assertValueLink } = require('playwright/lib/internal');33assert.equal(_assertValueLink, 'function');34assert.equal(_assertValueLink.name, '_assertValueLink');35assert.equal(_assertValueLink.length, 1);36assert.equal(_assertValueLink.toString(), 'function _assertValueLink() { [native code] }');37const { assert } = require('console');38const { Playwright } = require('playwright');39const { test } = require('playwright');40const { _

Using AI Code Generation

1const { _assertValueLink } = require('playwright/lib/utils');2it('should assert value link', async () => {3  await page.click('text=Get started');4  await page.click('text=Docs');5  await page.click('text=API');6  await page.click('text=P

Using AI Code Generation

1const { _assertValueLink } = require('playwright/lib/internal/selectorEngine');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch({ headless: false });5  const context = await browser.newContext();6  const page = await context.newPage();7  const input = await page.$('input[name="q"]');8  const valueLink = await input._valueLink();9  const value = await valueLink.evaluate(node => node.value);10  await _assertValueLink(valueLink, value, 'text to assert');11  await browser.close();12})();13const { _assertValueLink } = require('playwright/lib/internal/selectorEngine');14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch({ headless: false });17  const context = await browser.newContext();18  const page = await context.newPage();19  const input = await page.$('input[name="q"]');20  const valueLink = await input._valueLink();21  const value = await valueLink.evaluate(node => node.value);22  await _assertValueLink(valueLink, value, 'text to assert');23  await browser.close();24})();

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
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.