puppeteer/test/launcher.spec.js
Maja Frydrychowicz c5a72e9887 feat(launcher): add option to run Puppeteer with different browsers (#5137)
* feat: Set which browser to launch via PUPPETEER_PRODUCT

This change introduces a PUPPETEER_PRODUCT environment
variable as a first step toward using Puppeteer with
many different browsers. Setting PUPPETEER_PRODUCT=firefox, for
example, enables Firefox-specific Launcher settings.

The state is also exposed as `puppeteer.product` in the API
to support adding other product-specific behaviour as needed.

The bulk of the change is a refactoring in Launcher
to decouple generic browser start-up from product-specific
configuration.

Respecting the puppeteer-core restriction for PUPPETEER_
environment variables, lazily instantiate the Launcher
based on a `product` Puppeteer.launch option, if available.

* test: Distinguish Juggler unit tests from Firefox

The funit script is renamed to fjunit (j for Juggler, which is
used only by the experimental puppeteer-firefox package.

In contrast, the funit script now refers to running Puppeteer
unit tests against the main puppeteer package with Firefox.
To do so with Firefox Nightly, run:

`BINARY=path/to/firefox npm run funit`

A number of changes in this patch make it easier to run
Puppeteer unit tests in Mozilla's CI.
2019-11-26 10:23:19 +01:00

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JavaScript

/**
* 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, CHROME, FFOX, JUGGLER, puppeteerPath}) {
const {describe, xdescribe, fdescribe, describe_fails_ffox} = testRunner;
const {it, fit, xit, it_fails_ffox} = 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');
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);
remote.disconnect();
const error = await watchdog;
expect(error.message).toContain('Protocol error');
await browser.close();
});
});
describe('Browser.close', function() {
it('should terminate network waiters', async({context, server}) => {
const browser = await puppeteer.launch(defaultBrowserOptions);
const remote = await puppeteer.connect({browserWSEndpoint: browser.wsEndpoint()});
const newPage = await remote.newPage();
const results = await Promise.all([
newPage.waitForRequest(server.EMPTY_PAGE).catch(e => e),
newPage.waitForResponse(server.EMPTY_PAGE).catch(e => e),
browser.close()
]);
for (let i = 0; i < 2; i++) {
const message = results[i].message;
expect(message).toContain('Target closed');
expect(message).not.toContain('Timeout');
}
});
});
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).toContain('Failed to launch');
});
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);
if (CHROME) {
options.args = [
...(defaultBrowserOptions.args || []),
`--user-data-dir=${userDataDir}`
];
} else {
options.args = [
...(defaultBrowserOptions.args || []),
`-profile`,
userDataDir,
];
}
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 => {});
});
// This mysteriously fails on Windows on AppVeyor. See https://github.com/GoogleChrome/puppeteer/issues/4111
xit('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 arguments', async() => {
if (CHROME) {
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');
} else {
expect(puppeteer.defaultArgs()).toContain('-headless');
expect(puppeteer.defaultArgs({headless: false})).not.toContain('-headless');
expect(puppeteer.defaultArgs({userDataDir: 'foo'})).toContain('-profile');
expect(puppeteer.defaultArgs({userDataDir: 'foo'})).toContain('foo');
}
});
it('should report the correct product', async() => {
if (CHROME)
expect(puppeteer.product).toBe('chrome');
else if (FFOX && !JUGGLER)
expect(puppeteer.product).toBe('firefox');
});
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_fails_ffox('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_fails_ffox('should have custom URL when launching browser', async function({server}) {
const options = Object.assign({}, defaultBrowserOptions);
options.args = [server.EMPTY_PAGE].concat(options.args || []);
const browser = await puppeteer.launch(options);
const pages = await browser.pages();
expect(pages.length).toBe(1);
const page = pages[0];
if (page.url() !== server.EMPTY_PAGE)
await page.waitForNavigation();
expect(page.url()).toBe(server.EMPTY_PAGE);
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 be able to close remote browser', async({server}) => {
const originalBrowser = await puppeteer.launch(defaultBrowserOptions);
const remoteBrowser = await puppeteer.connect({
browserWSEndpoint: originalBrowser.wsEndpoint()
});
await Promise.all([
utils.waitEvent(originalBrowser, 'disconnected'),
remoteBrowser.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 [serverRequest, response] = await Promise.all([
httpsServer.waitForRequest('/empty.html'),
page.goto(httpsServer.EMPTY_PAGE).catch(e => error = e)
]);
expect(error).toBe(null);
expect(response.ok()).toBe(true);
expect(response.securityDetails()).toBeTruthy();
const protocol = serverRequest.socket.getProtocol().replace('v', ' ');
expect(response.securityDetails().protocol()).toBe(protocol);
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())).toEqual([
'http://localhost:<PORT>/frames/nested-frames.html',
' http://localhost:<PORT>/frames/two-frames.html (2frames)',
' http://localhost:<PORT>/frames/frame.html (uno)',
' http://localhost:<PORT>/frames/frame.html (dos)',
' http://localhost:<PORT>/frames/frame.html (aframe)',
]);
expect(await restoredPage.evaluate(() => 7 * 8)).toBe(56);
await browser.close();
});
// @see https://github.com/GoogleChrome/puppeteer/issues/4197#issuecomment-481793410
it('should be able to connect to the same page simultaneously', async({server}) => {
const browserOne = await puppeteer.launch();
const browserTwo = await puppeteer.connect({ browserWSEndpoint: browserOne.wsEndpoint() });
const [page1, page2] = await Promise.all([
new Promise(x => browserOne.once('targetcreated', target => x(target.page()))),
browserTwo.newPage(),
]);
expect(await page1.evaluate(() => 7 * 8)).toBe(56);
expect(await page2.evaluate(() => 7 * 6)).toBe(42);
await browserOne.close();
});
});
describe('Puppeteer.executablePath', function() {
it('should work', async({server}) => {
const executablePath = puppeteer.executablePath();
expect(fs.existsSync(executablePath)).toBe(true);
expect(fs.realpathSync(executablePath)).toBe(executablePath);
});
});
});
describe('Top-level requires', function() {
it('should require top-level Errors', async() => {
const Errors = require(path.join(puppeteerPath, '/Errors'));
expect(Errors.TimeoutError).toBe(puppeteer.errors.TimeoutError);
});
it('should require top-level DeviceDescriptors', async() => {
const Devices = require(path.join(puppeteerPath, '/DeviceDescriptors'));
expect(Devices['iPhone 6']).toBe(puppeteer.devices['iPhone 6']);
});
});
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);
});
});
};