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puppeteer/test/launcher.spec.js
Andrey Lushnikov 1a7995558f
chore(test): prepare tests to be run with Puppeteer-Firefox (#3833) 
This patch aligns Puppeteer testing infrastructure with the approach
we use in Puppeteer-Firefox.

This patch:
- makes all tests accept Puppeteer object as a function argument
  rather than require it statically. This way we can pass either
  Puppeteer or Puppeteer-Firefox to drive tests.
- renames the `puppeteer.spec.js` into `launcher.spec.js`. The
  `puppeteer.spec.js` is now the entry point for all cross-browsers
  tests.
2019-01-24 01:04:42 -05:00

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/**
* Copyright 2017 Google Inc. All rights reserved.
*
* 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.
*/
const fs = require('fs');
const os = require('os');
const path = require('path');
const {helper} = require('../lib/helper');
const rmAsync = helper.promisify(require('rimraf'));
const mkdtempAsync = helper.promisify(fs.mkdtemp);
const readFileAsync = helper.promisify(fs.readFile);
const statAsync = helper.promisify(fs.stat);
const TMP_FOLDER = path.join(os.tmpdir(), 'pptr_tmp_folder-');
const utils = require('./utils');
module.exports.addTests = function({testRunner, expect, defaultBrowserOptions, puppeteer}) {
const {describe, xdescribe, fdescribe} = testRunner;
const {it, fit, xit} = testRunner;
const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
describe('Puppeteer', function() {
describe('BrowserFetcher', function() {
it('should download and extract linux binary', async({server}) => {
const downloadsFolder = await mkdtempAsync(TMP_FOLDER);
const browserFetcher = puppeteer.createBrowserFetcher({
platform: 'linux',
path: downloadsFolder,
host: server.PREFIX
});
let revisionInfo = browserFetcher.revisionInfo('123456');
server.setRoute(revisionInfo.url.substring(server.PREFIX.length), (req, res) => {
server.serveFile(req, res, '/chromium-linux.zip');
});
expect(revisionInfo.local).toBe(false);
expect(browserFetcher.platform()).toBe('linux');
expect(await browserFetcher.canDownload('100000')).toBe(false);
expect(await browserFetcher.canDownload('123456')).toBe(true);
revisionInfo = await browserFetcher.download('123456');
expect(revisionInfo.local).toBe(true);
expect(await readFileAsync(revisionInfo.executablePath, 'utf8')).toBe('LINUX BINARY\n');
const expectedPermissions = os.platform() === 'win32' ? 0666 : 0755;
expect((await statAsync(revisionInfo.executablePath)).mode & 0777).toBe(expectedPermissions);
expect(await browserFetcher.localRevisions()).toEqual(['123456']);
await browserFetcher.remove('123456');
expect(await browserFetcher.localRevisions()).toEqual([]);
await rmAsync(downloadsFolder);
});
});
describe('Browser.disconnect', function() {
it('should reject navigation when browser closes', async({server}) => {
server.setRoute('/one-style.css', () => {});
const browser = await puppeteer.launch(defaultBrowserOptions);
const remote = await puppeteer.connect({browserWSEndpoint: browser.wsEndpoint()});
const page = await remote.newPage();
const navigationPromise = page.goto(server.PREFIX + '/one-style.html', {timeout: 60000}).catch(e => e);
await server.waitForRequest('/one-style.css');
await remote.disconnect();
const error = await navigationPromise;
expect(error.message).toBe('Navigation failed because browser has disconnected!');
await browser.close();
});
it('should reject waitForSelector when browser closes', async({server}) => {
server.setRoute('/empty.html', () => {});
const browser = await puppeteer.launch(defaultBrowserOptions);
const remote = await puppeteer.connect({browserWSEndpoint: browser.wsEndpoint()});
const page = await remote.newPage();
const watchdog = page.waitForSelector('div', {timeout: 60000}).catch(e => e);
await remote.disconnect();
const error = await watchdog;
expect(error.message).toBe('Protocol error (Runtime.callFunctionOn): Session closed. Most likely the page has been closed.');
await browser.close();
});
});
describe('Puppeteer.launch', function() {
it('should reject all promises when browser is closed', async() => {
const browser = await puppeteer.launch(defaultBrowserOptions);
const page = await browser.newPage();
let error = null;
const neverResolves = page.evaluate(() => new Promise(r => {})).catch(e => error = e);
await browser.close();
await neverResolves;
expect(error.message).toContain('Protocol error');
});
it('should reject if executable path is invalid', async({server}) => {
let waitError = null;
const options = Object.assign({}, defaultBrowserOptions, {executablePath: 'random-invalid-path'});
await puppeteer.launch(options).catch(e => waitError = e);
expect(waitError.message.startsWith('Failed to launch chrome! spawn random-invalid-path ENOENT')).toBe(true);
});
it('userDataDir option', async({server}) => {
const userDataDir = await mkdtempAsync(TMP_FOLDER);
const options = Object.assign({userDataDir}, defaultBrowserOptions);
const browser = await puppeteer.launch(options);
// Open a page to make sure its functional.
await browser.newPage();
expect(fs.readdirSync(userDataDir).length).toBeGreaterThan(0);
await browser.close();
expect(fs.readdirSync(userDataDir).length).toBeGreaterThan(0);
// This might throw. See https://github.com/GoogleChrome/puppeteer/issues/2778
await rmAsync(userDataDir).catch(e => {});
});
it('userDataDir argument', async({server}) => {
const userDataDir = await mkdtempAsync(TMP_FOLDER);
const options = Object.assign({}, defaultBrowserOptions);
options.args = [`--user-data-dir=${userDataDir}`].concat(options.args || []);
const browser = await puppeteer.launch(options);
expect(fs.readdirSync(userDataDir).length).toBeGreaterThan(0);
await browser.close();
expect(fs.readdirSync(userDataDir).length).toBeGreaterThan(0);
// This might throw. See https://github.com/GoogleChrome/puppeteer/issues/2778
await rmAsync(userDataDir).catch(e => {});
});
it('userDataDir option should restore state', async({server}) => {
const userDataDir = await mkdtempAsync(TMP_FOLDER);
const options = Object.assign({userDataDir}, defaultBrowserOptions);
const browser = await puppeteer.launch(options);
const page = await browser.newPage();
await page.goto(server.EMPTY_PAGE);
await page.evaluate(() => localStorage.hey = 'hello');
await browser.close();
const browser2 = await puppeteer.launch(options);
const page2 = await browser2.newPage();
await page2.goto(server.EMPTY_PAGE);
expect(await page2.evaluate(() => localStorage.hey)).toBe('hello');
await browser2.close();
// This might throw. See https://github.com/GoogleChrome/puppeteer/issues/2778
await rmAsync(userDataDir).catch(e => {});
});
it('userDataDir option should restore cookies', async({server}) => {
const userDataDir = await mkdtempAsync(TMP_FOLDER);
const options = Object.assign({userDataDir}, defaultBrowserOptions);
const browser = await puppeteer.launch(options);
const page = await browser.newPage();
await page.goto(server.EMPTY_PAGE);
await page.evaluate(() => document.cookie = 'doSomethingOnlyOnce=true; expires=Fri, 31 Dec 9999 23:59:59 GMT');
await browser.close();
const browser2 = await puppeteer.launch(options);
const page2 = await browser2.newPage();
await page2.goto(server.EMPTY_PAGE);
expect(await page2.evaluate(() => document.cookie)).toBe('doSomethingOnlyOnce=true');
await browser2.close();
// This might throw. See https://github.com/GoogleChrome/puppeteer/issues/2778
await rmAsync(userDataDir).catch(e => {});
});
it('should return the default chrome arguments', async() => {
expect(puppeteer.defaultArgs()).toContain('--no-first-run');
expect(puppeteer.defaultArgs()).toContain('--headless');
expect(puppeteer.defaultArgs({headless: false})).not.toContain('--headless');
expect(puppeteer.defaultArgs({userDataDir: 'foo'})).toContain('--user-data-dir=foo');
});
it('should dump browser process stderr', async({server}) => {
const dumpioTextToLog = 'MAGIC_DUMPIO_TEST';
let dumpioData = '';
const {spawn} = require('child_process');
const options = Object.assign({}, defaultBrowserOptions, {dumpio: true});
const res = spawn('node',
[path.join(__dirname, 'fixtures', 'dumpio.js'), utils.projectRoot(), JSON.stringify(options), server.EMPTY_PAGE, dumpioTextToLog]);
res.stderr.on('data', data => dumpioData += data.toString('utf8'));
await new Promise(resolve => res.on('close', resolve));
expect(dumpioData).toContain(dumpioTextToLog);
});
it('should close the browser when the node process closes', async({ server }) => {
const {spawn, execSync} = require('child_process');
const res = spawn('node', [path.join(__dirname, 'fixtures', 'closeme.js'), utils.projectRoot(), JSON.stringify(defaultBrowserOptions)]);
let wsEndPointCallback;
const wsEndPointPromise = new Promise(x => wsEndPointCallback = x);
let output = '';
res.stdout.on('data', data => {
output += data;
if (output.indexOf('\n'))
wsEndPointCallback(output.substring(0, output.indexOf('\n')));
});
const browser = await puppeteer.connect({ browserWSEndpoint: await wsEndPointPromise });
const promises = [
new Promise(resolve => browser.once('disconnected', resolve)),
new Promise(resolve => res.on('close', resolve))];
if (process.platform === 'win32')
execSync(`taskkill /pid ${res.pid} /T /F`);
else
process.kill(res.pid);
await Promise.all(promises);
});
it('should support the pipe option', async() => {
const options = Object.assign({pipe: true}, defaultBrowserOptions);
const browser = await puppeteer.launch(options);
expect((await browser.pages()).length).toBe(1);
expect(browser.wsEndpoint()).toBe('');
const page = await browser.newPage();
expect(await page.evaluate('11 * 11')).toBe(121);
await page.close();
await browser.close();
});
it('should support the pipe argument', async() => {
const options = Object.assign({}, defaultBrowserOptions);
options.args = ['--remote-debugging-pipe'].concat(options.args || []);
const browser = await puppeteer.launch(options);
expect(browser.wsEndpoint()).toBe('');
const page = await browser.newPage();
expect(await page.evaluate('11 * 11')).toBe(121);
await page.close();
await browser.close();
});
it('should fire "disconnected" when closing with pipe', async() => {
const options = Object.assign({pipe: true}, defaultBrowserOptions);
const browser = await puppeteer.launch(options);
const disconnectedEventPromise = new Promise(resolve => browser.once('disconnected', resolve));
// Emulate user exiting browser.
browser.process().kill();
await disconnectedEventPromise;
});
it('should work with no default arguments', async() => {
const options = Object.assign({}, defaultBrowserOptions);
options.ignoreDefaultArgs = true;
const browser = await puppeteer.launch(options);
const page = await browser.newPage();
expect(await page.evaluate('11 * 11')).toBe(121);
await page.close();
await browser.close();
});
it('should filter out ignored default arguments', async() => {
// Make sure we launch with `--enable-automation` by default.
const defaultArgs = puppeteer.defaultArgs();
const browser = await puppeteer.launch(Object.assign({}, defaultBrowserOptions, {
// Ignore first and third default argument.
ignoreDefaultArgs: [ defaultArgs[0], defaultArgs[2] ],
}));
const spawnargs = browser.process().spawnargs;
expect(spawnargs.indexOf(defaultArgs[0])).toBe(-1);
expect(spawnargs.indexOf(defaultArgs[1])).not.toBe(-1);
expect(spawnargs.indexOf(defaultArgs[2])).toBe(-1);
await browser.close();
});
it('should have default url when launching browser', async function() {
const browser = await puppeteer.launch(defaultBrowserOptions);
const pages = (await browser.pages()).map(page => page.url());
expect(pages).toEqual(['about:blank']);
await browser.close();
});
it('should have custom url when launching browser', async function({server}) {
const customUrl = server.PREFIX + '/empty.html';
const options = Object.assign({}, defaultBrowserOptions);
options.args = [customUrl].concat(options.args || []);
const browser = await puppeteer.launch(options);
const pages = await browser.pages();
expect(pages.length).toBe(1);
if (pages[0].url() !== customUrl)
await pages[0].waitForNavigation();
expect(pages[0].url()).toBe(customUrl);
await browser.close();
});
it('should set the default viewport', async() => {
const options = Object.assign({}, defaultBrowserOptions, {
defaultViewport: {
width: 456,
height: 789
}
});
const browser = await puppeteer.launch(options);
const page = await browser.newPage();
expect(await page.evaluate('window.innerWidth')).toBe(456);
expect(await page.evaluate('window.innerHeight')).toBe(789);
await browser.close();
});
it('should disable the default viewport', async() => {
const options = Object.assign({}, defaultBrowserOptions, {
defaultViewport: null
});
const browser = await puppeteer.launch(options);
const page = await browser.newPage();
expect(page.viewport()).toBe(null);
await browser.close();
});
it('should take fullPage screenshots when defaultViewport is null', async({server}) => {
const options = Object.assign({}, defaultBrowserOptions, {
defaultViewport: null
});
const browser = await puppeteer.launch(options);
const page = await browser.newPage();
await page.goto(server.PREFIX + '/grid.html');
const screenshot = await page.screenshot({
fullPage: true
});
expect(screenshot).toBeInstanceOf(Buffer);
await browser.close();
});
});
describe('Puppeteer.connect', function() {
it('should be able to connect multiple times to the same browser', async({server}) => {
const originalBrowser = await puppeteer.launch(defaultBrowserOptions);
const browser = await puppeteer.connect({
browserWSEndpoint: originalBrowser.wsEndpoint()
});
const page = await browser.newPage();
expect(await page.evaluate(() => 7 * 8)).toBe(56);
browser.disconnect();
const secondPage = await originalBrowser.newPage();
expect(await secondPage.evaluate(() => 7 * 6)).toBe(42, 'original browser should still work');
await originalBrowser.close();
});
it('should support ignoreHTTPSErrors option', async({httpsServer}) => {
const originalBrowser = await puppeteer.launch(defaultBrowserOptions);
const browserWSEndpoint = originalBrowser.wsEndpoint();
const browser = await puppeteer.connect({browserWSEndpoint, ignoreHTTPSErrors: true});
const page = await browser.newPage();
let error = null;
const response = await page.goto(httpsServer.EMPTY_PAGE).catch(e => error = e);
expect(error).toBe(null);
expect(response.ok()).toBe(true);
expect(response.securityDetails()).toBeTruthy();
expect(response.securityDetails().protocol()).toBe('TLS 1.2');
await page.close();
await browser.close();
});
it('should be able to reconnect to a disconnected browser', async({server}) => {
const originalBrowser = await puppeteer.launch(defaultBrowserOptions);
const browserWSEndpoint = originalBrowser.wsEndpoint();
const page = await originalBrowser.newPage();
await page.goto(server.PREFIX + '/frames/nested-frames.html');
originalBrowser.disconnect();
const browser = await puppeteer.connect({browserWSEndpoint});
const pages = await browser.pages();
const restoredPage = pages.find(page => page.url() === server.PREFIX + '/frames/nested-frames.html');
expect(utils.dumpFrames(restoredPage.mainFrame())).toBeGolden('reconnect-nested-frames.txt');
expect(await restoredPage.evaluate(() => 7 * 8)).toBe(56);
await browser.close();
});
it('should be able to connect using browserUrl, with and without trailing slash', async({server}) => {
const originalBrowser = await puppeteer.launch(Object.assign({}, defaultBrowserOptions, {
args: ['--remote-debugging-port=21222']
}));
const browserURL = 'http://127.0.0.1:21222';
const browser1 = await puppeteer.connect({browserURL});
const page1 = await browser1.newPage();
expect(await page1.evaluate(() => 7 * 8)).toBe(56);
browser1.disconnect();
const browser2 = await puppeteer.connect({browserURL: browserURL + '/'});
const page2 = await browser2.newPage();
expect(await page2.evaluate(() => 8 * 7)).toBe(56);
browser2.disconnect();
originalBrowser.close();
});
it('should throw when using both browserWSEndpoint and browserURL', async({server}) => {
const originalBrowser = await puppeteer.launch(Object.assign({}, defaultBrowserOptions, {
args: ['--remote-debugging-port=21222']
}));
const browserURL = 'http://127.0.0.1:21222';
let error = null;
await puppeteer.connect({browserURL, browserWSEndpoint: originalBrowser.wsEndpoint()}).catch(e => error = e);
expect(error.message).toContain('Exactly one of browserWSEndpoint, browserURL or transport');
originalBrowser.close();
});
it('should throw when trying to connect to non-existing browser', async({server}) => {
const originalBrowser = await puppeteer.launch(Object.assign({}, defaultBrowserOptions, {
args: ['--remote-debugging-port=21222']
}));
const browserURL = 'http://127.0.0.1:32333';
let error = null;
await puppeteer.connect({browserURL}).catch(e => error = e);
expect(error.message).toContain('Failed to fetch browser webSocket url from');
originalBrowser.close();
});
});
describe('Puppeteer.executablePath', function() {
it('should work', async({server}) => {
const executablePath = puppeteer.executablePath();
expect(fs.existsSync(executablePath)).toBe(true);
});
});
});
describe('Browser target events', function() {
it('should work', async({server}) => {
const browser = await puppeteer.launch(defaultBrowserOptions);
const events = [];
browser.on('targetcreated', () => events.push('CREATED'));
browser.on('targetchanged', () => events.push('CHANGED'));
browser.on('targetdestroyed', () => events.push('DESTROYED'));
const page = await browser.newPage();
await page.goto(server.EMPTY_PAGE);
await page.close();
expect(events).toEqual(['CREATED', 'CHANGED', 'DESTROYED']);
await browser.close();
});
});
describe('Browser.Events.disconnected', function() {
it('should be emitted when: browser gets closed, disconnected or underlying websocket gets closed', async() => {
const originalBrowser = await puppeteer.launch(defaultBrowserOptions);
const browserWSEndpoint = originalBrowser.wsEndpoint();
const remoteBrowser1 = await puppeteer.connect({browserWSEndpoint});
const remoteBrowser2 = await puppeteer.connect({browserWSEndpoint});
let disconnectedOriginal = 0;
let disconnectedRemote1 = 0;
let disconnectedRemote2 = 0;
originalBrowser.on('disconnected', () => ++disconnectedOriginal);
remoteBrowser1.on('disconnected', () => ++disconnectedRemote1);
remoteBrowser2.on('disconnected', () => ++disconnectedRemote2);
await Promise.all([
utils.waitEvent(remoteBrowser2, 'disconnected'),
remoteBrowser2.disconnect(),
]);
expect(disconnectedOriginal).toBe(0);
expect(disconnectedRemote1).toBe(0);
expect(disconnectedRemote2).toBe(1);
await Promise.all([
utils.waitEvent(remoteBrowser1, 'disconnected'),
utils.waitEvent(originalBrowser, 'disconnected'),
originalBrowser.close(),
]);
expect(disconnectedOriginal).toBe(1);
expect(disconnectedRemote1).toBe(1);
expect(disconnectedRemote2).toBe(1);
});
});
};
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