/** * 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 work', async ({ page, server }) => { await page.setContent('
100
10
'); const tweet = await page.$('.tweet'); const content = await tweet.$eval('.like', node => (node as HTMLElement).innerText); expect(content).toBe('100'); }); it('should retrieve content from subtree', async ({ page, server }) => { const htmlContent = '
not-a-child-div
a-child-div
'; await page.setContent(htmlContent); const elementHandle = await page.$('#myId'); const content = await elementHandle.$eval('.a', node => (node as HTMLElement).innerText); expect(content).toBe('a-child-div'); }); it('should throw in case of missing selector', async ({ page, server }) => { const htmlContent = '
not-a-child-div
'; await page.setContent(htmlContent); const elementHandle = await page.$('#myId'); const errorMessage = await elementHandle.$eval('.a', node => (node as HTMLElement).innerText).catch(error => error.message); expect(errorMessage).toContain(`elementHandle.$eval: Failed to find element matching selector ".a"`); }); it('should work for all', async ({ page, server }) => { await page.setContent('
100
10
'); const tweet = await page.$('.tweet'); const content = await tweet.$$eval('.like', nodes => nodes.map(n => (n as HTMLElement).innerText)); expect(content).toEqual(['100', '10']); }); it('should retrieve content from subtree for all', async ({ page, server }) => { const htmlContent = '
not-a-child-div
a1-child-div
a2-child-div
'; await page.setContent(htmlContent); const elementHandle = await page.$('#myId'); const content = await elementHandle.$$eval('.a', nodes => nodes.map(n => (n as HTMLElement).innerText)); expect(content).toEqual(['a1-child-div', 'a2-child-div']); }); it('should not throw in case of missing selector for all', async ({ page, server }) => { const htmlContent = '
not-a-child-div
'; await page.setContent(htmlContent); const elementHandle = await page.$('#myId'); const nodesLength = await elementHandle.$$eval('.a', nodes => nodes.length); expect(nodesLength).toBe(0); });