mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
206 lines
9.1 KiB
JavaScript
206 lines
9.1 KiB
JavaScript
/**
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* Copyright 2018 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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module.exports.addTests = function({testRunner, expect, product}) {
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const {describe, xdescribe, fdescribe} = testRunner;
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const {it, fit, xit} = testRunner;
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const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
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describe('Page.$eval', function() {
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it('should work', async({page, server}) => {
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await page.setContent('<section id="testAttribute">43543</section>');
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const idAttribute = await page.$eval('section', e => e.id);
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expect(idAttribute).toBe('testAttribute');
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});
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it('should accept arguments', async({page, server}) => {
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await page.setContent('<section>hello</section>');
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const text = await page.$eval('section', (e, suffix) => e.textContent + suffix, ' world!');
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expect(text).toBe('hello world!');
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});
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it('should accept ElementHandles as arguments', async({page, server}) => {
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await page.setContent('<section>hello</section><div> world</div>');
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const divHandle = await page.$('div');
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const text = await page.$eval('section', (e, div) => e.textContent + div.textContent, divHandle);
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expect(text).toBe('hello world');
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});
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it('should throw error if no element is found', async({page, server}) => {
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let error = null;
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await page.$eval('section', e => e.id).catch(e => error = e);
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expect(error.message).toContain('failed to find element matching selector "section"');
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});
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});
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describe('Page.$$eval', function() {
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it('should work', async({page, server}) => {
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await page.setContent('<div>hello</div><div>beautiful</div><div>world!</div>');
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const divsCount = await page.$$eval('div', divs => divs.length);
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expect(divsCount).toBe(3);
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});
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});
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describe('Page.$', function() {
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it('should query existing element', async({page, server}) => {
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await page.setContent('<section>test</section>');
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const element = await page.$('section');
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expect(element).toBeTruthy();
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});
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it('should return null for non-existing element', async({page, server}) => {
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const element = await page.$('non-existing-element');
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expect(element).toBe(null);
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});
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});
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describe('Page.$$', function() {
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it('should query existing elements', async({page, server}) => {
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await page.setContent('<div>A</div><br/><div>B</div>');
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const elements = await page.$$('div');
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expect(elements.length).toBe(2);
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const promises = elements.map(element => page.evaluate(e => e.textContent, element));
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expect(await Promise.all(promises)).toEqual(['A', 'B']);
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});
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it('should return empty array if nothing is found', async({page, server}) => {
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await page.goto(server.EMPTY_PAGE);
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const elements = await page.$$('div');
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expect(elements.length).toBe(0);
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});
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});
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describe('Path.$x', function() {
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it('should query existing element', async({page, server}) => {
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await page.setContent('<section>test</section>');
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const elements = await page.$x('/html/body/section');
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expect(elements[0]).toBeTruthy();
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expect(elements.length).toBe(1);
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});
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it('should return empty array for non-existing element', async({page, server}) => {
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const element = await page.$x('/html/body/non-existing-element');
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expect(element).toEqual([]);
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});
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it('should return multiple elements', async({page, sever}) => {
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await page.setContent('<div></div><div></div>');
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const elements = await page.$x('/html/body/div');
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expect(elements.length).toBe(2);
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});
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});
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describe('ElementHandle.$', function() {
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it('should query existing element', async({page, server}) => {
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await page.goto(server.PREFIX + '/playground.html');
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await page.setContent('<html><body><div class="second"><div class="inner">A</div></div></body></html>');
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const html = await page.$('html');
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const second = await html.$('.second');
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const inner = await second.$('.inner');
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const content = await page.evaluate(e => e.textContent, inner);
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expect(content).toBe('A');
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});
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it('should return null for non-existing element', async({page, server}) => {
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await page.setContent('<html><body><div class="second"><div class="inner">B</div></div></body></html>');
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const html = await page.$('html');
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const second = await html.$('.third');
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expect(second).toBe(null);
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});
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});
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describe('ElementHandle.$eval', function() {
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it('should work', async({page, server}) => {
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await page.setContent('<html><body><div class="tweet"><div class="like">100</div><div class="retweets">10</div></div></body></html>');
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const tweet = await page.$('.tweet');
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const content = await tweet.$eval('.like', node => node.innerText);
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expect(content).toBe('100');
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});
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it('should retrieve content from subtree', async({page, server}) => {
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const htmlContent = '<div class="a">not-a-child-div</div><div id="myId"><div class="a">a-child-div</div></div>';
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await page.setContent(htmlContent);
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const elementHandle = await page.$('#myId');
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const content = await elementHandle.$eval('.a', node => node.innerText);
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expect(content).toBe('a-child-div');
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});
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it('should throw in case of missing selector', async({page, server}) => {
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const htmlContent = '<div class="a">not-a-child-div</div><div id="myId"></div>';
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await page.setContent(htmlContent);
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const elementHandle = await page.$('#myId');
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const errorMessage = await elementHandle.$eval('.a', node => node.innerText).catch(error => error.message);
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expect(errorMessage).toBe(`Error: failed to find element matching selector ".a"`);
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});
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});
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describe('ElementHandle.$$eval', function() {
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it('should work', async({page, server}) => {
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await page.setContent('<html><body><div class="tweet"><div class="like">100</div><div class="like">10</div></div></body></html>');
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const tweet = await page.$('.tweet');
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const content = await tweet.$$eval('.like', nodes => nodes.map(n => n.innerText));
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expect(content).toEqual(['100', '10']);
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});
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it('should retrieve content from subtree', async({page, server}) => {
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const htmlContent = '<div class="a">not-a-child-div</div><div id="myId"><div class="a">a1-child-div</div><div class="a">a2-child-div</div></div>';
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await page.setContent(htmlContent);
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const elementHandle = await page.$('#myId');
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const content = await elementHandle.$$eval('.a', nodes => nodes.map(n => n.innerText));
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expect(content).toEqual(['a1-child-div', 'a2-child-div']);
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});
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it('should not throw in case of missing selector', async({page, server}) => {
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const htmlContent = '<div class="a">not-a-child-div</div><div id="myId"></div>';
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await page.setContent(htmlContent);
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const elementHandle = await page.$('#myId');
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const nodesLength = await elementHandle.$$eval('.a', nodes => nodes.length);
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expect(nodesLength).toBe(0);
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});
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});
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describe('ElementHandle.$$', function() {
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it('should query existing elements', async({page, server}) => {
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await page.setContent('<html><body><div>A</div><br/><div>B</div></body></html>');
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const html = await page.$('html');
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const elements = await html.$$('div');
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expect(elements.length).toBe(2);
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const promises = elements.map(element => page.evaluate(e => e.textContent, element));
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expect(await Promise.all(promises)).toEqual(['A', 'B']);
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});
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it('should return empty array for non-existing elements', async({page, server}) => {
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await page.setContent('<html><body><span>A</span><br/><span>B</span></body></html>');
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const html = await page.$('html');
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const elements = await html.$$('div');
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expect(elements.length).toBe(0);
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});
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});
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describe('ElementHandle.$x', function() {
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it('should query existing element', async({page, server}) => {
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await page.goto(server.PREFIX + '/playground.html');
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await page.setContent('<html><body><div class="second"><div class="inner">A</div></div></body></html>');
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const html = await page.$('html');
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const second = await html.$x(`./body/div[contains(@class, 'second')]`);
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const inner = await second[0].$x(`./div[contains(@class, 'inner')]`);
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const content = await page.evaluate(e => e.textContent, inner[0]);
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expect(content).toBe('A');
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});
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it('should return null for non-existing element', async({page, server}) => {
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await page.setContent('<html><body><div class="second"><div class="inner">B</div></div></body></html>');
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const html = await page.$('html');
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const second = await html.$x(`/div[contains(@class, 'third')]`);
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expect(second).toEqual([]);
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});
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});
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};
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