/** * Copyright 2018 Google Inc. All rights reserved. * Modifications copyright (c) Microsoft Corporation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import { test as it, expect } from './pageTest'; it('should query existing element', async ({ page, server }) => { await page.goto(server.PREFIX + '/playground.html'); await page.setContent('
A
'); const html = await page.$('html'); const second = await html.$('.second'); const inner = await second.$('.inner'); const content = await page.evaluate(e => e.textContent, inner); expect(content).toBe('A'); }); it('should return null for non-existing element', async ({ page, server }) => { await page.setContent('
B
'); const html = await page.$('html'); const second = await html.$('.third'); expect(second).toBe(null); }); it('should work for adopted elements', async ({ page, server }) => { await page.goto(server.EMPTY_PAGE); const [popup] = await Promise.all([ page.waitForEvent('popup'), page.evaluate(url => window['__popup'] = window.open(url), server.EMPTY_PAGE), ]); const divHandle = await page.evaluateHandle(() => { const div = document.createElement('div'); document.body.appendChild(div); const span = document.createElement('span'); span.textContent = 'hello'; div.appendChild(span); return div; }); expect(await divHandle.$('span')).toBeTruthy(); expect(await divHandle.$eval('span', e => e.textContent)).toBe('hello'); await popup.waitForLoadState('domcontentloaded'); await page.evaluate(() => { const div = document.querySelector('div'); window['__popup'].document.body.appendChild(div); }); expect(await divHandle.$('span')).toBeTruthy(); expect(await divHandle.$eval('span', e => e.textContent)).toBe('hello'); }); it('should query existing elements', async ({ page, server }) => { await page.setContent('
A

B
'); const html = await page.$('html'); const elements = await html.$$('div'); expect(elements.length).toBe(2); const promises = elements.map(element => page.evaluate(e => e.textContent, element)); expect(await Promise.all(promises)).toEqual(['A', 'B']); }); it('should return empty array for non-existing elements', async ({ page, server }) => { await page.setContent('A
B'); const html = await page.$('html'); const elements = await html.$$('div'); expect(elements.length).toBe(0); }); it('xpath should query existing element', async ({ page, server }) => { await page.goto(server.PREFIX + '/playground.html'); await page.setContent('
A
'); const html = await page.$('html'); const second = await html.$$(`xpath=./body/div[contains(@class, 'second')]`); const inner = await second[0].$$(`xpath=./div[contains(@class, 'inner')]`); const content = await page.evaluate(e => e.textContent, inner[0]); expect(content).toBe('A'); }); it('xpath should return null for non-existing element', async ({ page, server }) => { await page.setContent('
B
'); const html = await page.$('html'); const second = await html.$$(`xpath=/div[contains(@class, 'third')]`); expect(second).toEqual([]); });