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How to use toHaveJSProperty method in Playwright Internal

Best JavaScript code snippet using playwright-internal

matchers.js

Source:matchers.js

...151      timeout152    })) || '';153  }, expected, options);154}155function toHaveJSProperty(locator, name, expected, options) {156  return _toEqual.toEqual.call(this, 'toHaveJSProperty', locator, 'Locator', async timeout => {157    return await locator.evaluate((element, name) => element[name], name, {158      timeout159    });160  }, expected, options);161}162function toHaveText(locator, expected, options) {163  if (Array.isArray(expected)) {164    return _toEqual.toEqual.call(this, 'toHaveText', locator, 'Locator', async () => {165      return locator.evaluateAll((ee, useInnerText) => {166        return ee.map(e => useInnerText ? e.innerText : e.textContent || '');167      }, options === null || options === void 0 ? void 0 : options.useInnerText);168    }, expected, options);169  } else {...

expect.js

Source:expect.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.expect = void 0;6var _expect = _interopRequireDefault(require("expect"));7var _matchers = require("./matchers/matchers");8var _toMatchSnapshot = require("./matchers/toMatchSnapshot");9var _matchers2 = _interopRequireDefault(require("expect/build/matchers"));10var _globals = require("./globals");11var _util = require("./util");12function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }13/**14 * Copyright Microsoft Corporation. All rights reserved.15 *16 * Licensed under the Apache License, Version 2.0 (the "License");17 * you may not use this file except in compliance with the License.18 * You may obtain a copy of the License at19 *20 *     http://www.apache.org/licenses/LICENSE-2.021 *22 * Unless required by applicable law or agreed to in writing, software23 * distributed under the License is distributed on an "AS IS" BASIS,24 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.25 * See the License for the specific language governing permissions and26 * limitations under the License.27 */28const expect = _expect.default;29exports.expect = expect;30_expect.default.setState({31  expand: false32});33const customMatchers = {34  toBeChecked: _matchers.toBeChecked,35  toBeDisabled: _matchers.toBeDisabled,36  toBeEditable: _matchers.toBeEditable,37  toBeEmpty: _matchers.toBeEmpty,38  toBeEnabled: _matchers.toBeEnabled,39  toBeFocused: _matchers.toBeFocused,40  toBeHidden: _matchers.toBeHidden,41  toBeVisible: _matchers.toBeVisible,42  toContainText: _matchers.toContainText,43  toHaveAttribute: _matchers.toHaveAttribute,44  toHaveClass: _matchers.toHaveClass,45  toHaveCount: _matchers.toHaveCount,46  toHaveCSS: _matchers.toHaveCSS,47  toHaveId: _matchers.toHaveId,48  toHaveJSProperty: _matchers.toHaveJSProperty,49  toHaveText: _matchers.toHaveText,50  toHaveTitle: _matchers.toHaveTitle,51  toHaveURL: _matchers.toHaveURL,52  toHaveValue: _matchers.toHaveValue,53  toMatchSnapshot: _toMatchSnapshot.toMatchSnapshot54};55function wrap(matcherName, matcher) {56  return function (...args) {57    const testInfo = (0, _globals.currentTestInfo)();58    if (!testInfo) return matcher.call(this, ...args);59    const infix = this.isNot ? '.not' : '';60    const completeStep = testInfo._addStep('expect', `expect${infix}.${matcherName}`);61    const stack = new Error().stack;62    const reportStepEnd = result => {63      const success = result.pass !== this.isNot;64      let error;65      if (!success) error = {66        message: result.message(),67        stack68      };69      completeStep === null || completeStep === void 0 ? void 0 : completeStep(error);70      return result;71    };72    const reportStepError = error => {73      completeStep === null || completeStep === void 0 ? void 0 : completeStep((0, _util.serializeError)(error));74      throw error;75    };76    try {77      const result = matcher.call(this, ...args);78      if (result instanceof Promise) return result.then(reportStepEnd).catch(reportStepError);79      return reportStepEnd(result);80    } catch (e) {81      reportStepError(e);82    }83  };84}85const wrappedMatchers = {};86for (const matcherName in _matchers2.default) wrappedMatchers[matcherName] = wrap(matcherName, _matchers2.default[matcherName]);87for (const matcherName in customMatchers) wrappedMatchers[matcherName] = wrap(matcherName, customMatchers[matcherName]);...

missing-playwright-await.js

Source:missing-playwright-await.js

1function getMemberPartName(node, part) {2  return node[part].type === "Identifier" ? node[part].name : undefined;3}4function getMemberExpressionNode(node, matchers) {5  const propertyName = getMemberPartName(node, "property");6  if (getMemberPartName(node, "object") === "test") {7    return propertyName === "step" ? { node, type: "testStep" } : undefined;8  }9  return matchers.has(propertyName) ? { node, type: "expect" } : undefined;10}11function isValid(node) {12  const grandparentType =13    node.parent && node.parent.parent && node.parent.parent.type;14  return (15    grandparentType === "AwaitExpression" ||16    grandparentType === "ReturnStatement" ||17    grandparentType === "ArrowFunctionExpression"18  );19}20const expectPlaywrightMatchers = [21  "toBeChecked",22  "toBeDisabled",23  "toBeEnabled",24  "toEqualText", // deprecated25  "toEqualUrl",26  "toEqualValue",27  "toHaveFocus",28  "toHaveSelector",29  "toHaveSelectorCount",30  "toHaveText", // deprecated31  "toMatchAttribute",32  "toMatchComputedStyle",33  "toMatchText",34  "toMatchTitle",35  "toMatchURL",36  "toMatchValue",37];38const playwrightTestMatchers = [39  "toBeChecked",40  "toBeDisabled",41  "toBeEditable",42  "toBeEmpty",43  "toBeEnabled",44  "toBeFocused",45  "toBeHidden",46  "toBeVisible",47  "toContainText",48  "toHaveAttribute",49  "toHaveClass",50  "toHaveCount",51  "toHaveCSS",52  "toHaveId",53  "toHaveJSProperty",54  "toBeOK",55  "toHaveText",56  "toHaveTitle",57  "toHaveURL",58  "toHaveValue",59];60module.exports = {61  create(context) {62    const options = context.options[0] || {};63    const matchers = new Set([64      ...expectPlaywrightMatchers,65      ...playwrightTestMatchers,66      // Add any custom matchers to the set67      ...(options.customMatchers || []),68    ]);69    return {70      MemberExpression(statement) {71        const result = getMemberExpressionNode(statement, matchers);72        if (result && !isValid(result.node)) {73          context.report({74            fix: (fixer) => fixer.insertTextBefore(result.node, "await "),75            messageId: result.type,76            node: result.node,77          });78        }79      },80    };81  },82  meta: {83    docs: {84      category: "Possible Errors",85      description: `Identify false positives when async Playwright APIs are not properly awaited.`,86      recommended: true,87    },88    fixable: "code",89    messages: {90      expect: "'expect' matchers must be awaited or returned.",91      testStep: "'test.step' must be awaited or returned.",92    },93    schema: [94      {95        additionalProperties: false,96        properties: {97          customMatchers: {98            items: { type: "string" },99            type: "array",100          },101        },102        type: "object",103      },104    ],105    type: "problem",106  },...

Using AI Code Generation

1const { test, expect } = require("@playwright/test");2test("test", async ({ page }) => {3  await page.waitForSelector(".navbar__inner");4  await expect(page).toHaveJSProperty("document", "querySelector");5});6const { test, expect } = require("@playwright/test");7test("test", async ({ page }) => {8  await page.waitForSelector(".navbar__inner");9  await expect(page).toHaveJSProperty("document", "querySelector");10});11const { test, expect } = require("@playwright/test");12test("test", async ({ page }) => {13  await page.waitForSelector(".navbar__inner");14  await expect(page).toHaveJSProperty("document", "querySelector");15});16const { test, expect } = require("@playwright/test");17test("test", async ({ page }) => {18  await page.waitForSelector(".navbar__inner");19  await expect(page).toHaveJSProperty("document", "querySelector");20});21const { test, expect } = require("@playwright/test");22test("test", async ({ page }) => {23  await page.waitForSelector(".navbar__inner");24  await expect(page).toHaveJSProperty("document", "querySelector");25});26const { test, expect } = require("@playwright/test");27test("test", async ({ page }) => {28  await page.waitForSelector(".navbar__inner");29  await expect(page).toHaveJSProperty("document", "querySelector");30});31const { test, expect } = require("@playwright/test");32test("test", async ({ page }) => {33  await page.waitForSelector(".navbar__inner");34  await expect(page).toHaveJSProperty("

Using AI Code Generation

1import { toHaveJSProperty } from 'jest-playwright-preset';2expect.extend({ toHaveJSProperty });3describe('Playwright', () => {4  it('should have JS property', async () => {5    await expect(page).toHaveJSProperty('querySelector');6  });7});

Using AI Code Generation

1const { test, expect } = require('@playwright/test');2test('test', async ({ page }) => {3    const search = await page.$('header input[type="search"]');4    await expect(search).toHaveJSProperty('value', '');5});6module.exports = {7    use: {8    }9};10{11  "scripts": {12  },13  "devDependencies": {14  }15}16Test failed: expect(received).toHaveJSProperty(expected)17  object: Object {18    "attributes": Object {19    },20    "classList": DOMTokenList {21    },22    "dataset": DOMStringMap {},

Using AI Code Generation

1const { test, expect } = require('@playwright/test');2test('Test to check if the element has the given property', async ({ page }) => {3    const element = await page.$('.navbar__inner');4    await expect(element).toHaveJSProperty('nodeName');5});6const { test, expect } = require('@playwright/test');7test('Test to check if the element has the given property', async ({ page }) => {8    const element = await page.$('.navbar__inner');9    await expect(element).toHaveJSProperty('nodeName', 'DIV');10});11const { test, expect } = require('@playwright/test');12test('Test to check if the element has the given property', async ({ page }) => {13    const element = await page.$('.navbar__inner');14    await expect(element).toHaveJSProperty('nodeName', 'DIV', { timeout: 3000 });15});16const { test, expect } = require('@playwright/test');17test('Test to check if the element has the given property', async ({ page }) => {18    const element = await page.$('.navbar__inner');19    await expect(element).toHaveJSProperty('nodeName', 'DIV', { timeout: 3000, message: 'Element does not have the given property' });20});21const { test, expect } = require('@playwright/test');22test('Test to check if the element has the given property', async ({ page }) => {23    const element = await page.$('.navbar__inner');24    await expect(element).toHaveJSProperty('nodeName', 'DIV', { timeout: 3000, message: 'Element does not have the given property' });25});26const { test, expect } = require('@playwright/test');27test('

Using AI Code Generation

1const { test, expect } = require('@playwright/test');2test('test', async ({ page }) => {3  await expect(page).toHaveJSProperty('location');4});5✓ test (1s)6  1 test passed (1s)7const { test, expect } = require('@playwright/test');8test('test', async ({ page }) => {9});10✓ test (1s)11  1 test passed (1s)12const { test, expect } = require('@playwright/test');13test('test', async ({ page }) => {14});15✓ test (1s)16  1 test passed (1s)17const { test, expect } = require('@playwright/test');18test('test', async ({ page }) => {19});20✓ test (1s)21  1 test passed (1s)

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:

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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.
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