puppeteer/test/test.js
Andrey Lushnikov 6c163122bf Update default viewport size to be 800px by 600px (#194)
This patch updates default viewport size to be 800px by 600px.
This comes handy when observing scripts running in non-headless mode.
2017-08-02 15:47:00 -07:00

1567 lines
61 KiB
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 rm = require('rimraf').sync;
const path = require('path');
const helper = require('../lib/helper');
if (process.env.COVERAGE)
helper.recordPublicAPICoverage();
const Browser = require('../lib/Browser');
const SimpleServer = require('./server/SimpleServer');
const GoldenUtils = require('./golden-utils');
const GOLDEN_DIR = path.join(__dirname, 'golden');
const OUTPUT_DIR = path.join(__dirname, 'output');
const PORT = 8907;
const PREFIX = 'http://localhost:' + PORT;
const EMPTY_PAGE = PREFIX + '/empty.html';
const HTTPS_PORT = 8908;
const HTTPS_PREFIX = 'https://localhost:' + HTTPS_PORT;
const iPhone = require('../DeviceDescriptors')['iPhone 6'];
const iPhoneLandscape = require('../DeviceDescriptors')['iPhone 6 landscape'];
const headless = (process.env.HEADLESS || 'true').trim().toLowerCase() === 'true';
const slowMo = parseInt((process.env.SLOW_MO || '0').trim(), 10);
if (process.env.DEBUG_TEST || slowMo)
jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000 * 1000 * 1000;
else
jasmine.DEFAULT_TIMEOUT_INTERVAL = 10 * 1000;
// Make sure the `npm install` was run after the chromium roll.
{
const Downloader = require('../utils/ChromiumDownloader');
const chromiumRevision = require('../package.json').puppeteer.chromium_revision;
const revisionInfo = Downloader.revisionInfo(Downloader.currentPlatform(), chromiumRevision);
console.assert(revisionInfo, `Chromium r${chromiumRevision} is not downloaded. Run 'npm install' and try to re-run tests.`);
}
let server;
let httpsServer;
beforeAll(SX(async function() {
const assetsPath = path.join(__dirname, 'assets');
server = await SimpleServer.create(assetsPath, PORT);
httpsServer = await SimpleServer.createHTTPS(assetsPath, HTTPS_PORT);
if (fs.existsSync(OUTPUT_DIR))
rm(OUTPUT_DIR);
}));
afterAll(SX(async function() {
await Promise.all([
server.stop(),
httpsServer.stop(),
]);
}));
describe('Browser', function() {
it('Browser.Options.ignoreHTTPSErrors', SX(async function() {
let browser = new Browser({ignoreHTTPSErrors: true, headless, slowMo, args: ['--no-sandbox']});
let page = await browser.newPage();
let error = null;
let response = null;
try {
response = await page.navigate(HTTPS_PREFIX + '/empty.html');
} catch (e) {
error = e;
}
expect(error).toBe(null);
expect(response.ok).toBe(true);
browser.close();
}));
});
describe('Page', function() {
let browser;
let page;
beforeAll(SX(async function() {
browser = new Browser({headless, slowMo, args: ['--no-sandbox']});
}));
afterAll(SX(async function() {
browser.close();
}));
beforeEach(SX(async function() {
page = await browser.newPage();
server.reset();
httpsServer.reset();
GoldenUtils.addMatchers(jasmine, GOLDEN_DIR, OUTPUT_DIR);
}));
afterEach(SX(async function() {
await page.close();
}));
describe('Browser.version', function() {
it('should return whether we are in headless', SX(async function() {
let version = await browser.version();
expect(version.length).toBeGreaterThan(0);
expect(version.startsWith('Headless')).toBe(headless);
}));
});
describe('Page.evaluate', function() {
it('should work', SX(async function() {
let result = await page.evaluate(() => 7 * 3);
expect(result).toBe(21);
}));
it('should await promise', SX(async function() {
let result = await page.evaluate(() => Promise.resolve(8 * 7));
expect(result).toBe(56);
}));
it('should work from-inside inPageCallback', SX(async function() {
// Setup inpage callback, which calls Page.evaluate
await page.setInPageCallback('callController', async function(a, b) {
return await page.evaluate((a, b) => a * b, a, b);
});
let result = await page.evaluate(async function() {
return await callController(9, 3);
});
expect(result).toBe(27);
}));
it('should reject promise with exception', SX(async function() {
let error = null;
try {
await page.evaluate(() => not.existing.object.property);
} catch (e) {
error = e;
}
expect(error).toBeTruthy();
expect(error.message).toContain('not is not defined');
}));
it('should return complex objects', SX(async function() {
const object = {foo: 'bar!'};
let result = await page.evaluate(a => a, object);
expect(result).not.toBe(object);
expect(result).toEqual(object);
}));
it('should return NaN', SX(async function() {
let result = await page.evaluate(() => NaN);
expect(Object.is(result, NaN)).toBe(true);
}));
it('should return -0', SX(async function() {
let result = await page.evaluate(() => -0);
expect(Object.is(result, -0)).toBe(true);
}));
it('should return Infinity', SX(async function() {
let result = await page.evaluate(() => Infinity);
expect(Object.is(result, Infinity)).toBe(true);
}));
it('should return -Infinity', SX(async function() {
let result = await page.evaluate(() => -Infinity);
expect(Object.is(result, -Infinity)).toBe(true);
}));
it('should not fail for window object', SX(async function() {
let result = await page.evaluate(() => window);
expect(result).toBe('Window');
}));
it('should accept a string', SX(async function() {
let result = await page.evaluate('1 + 2');
expect(result).toBe(3);
}));
it('should accept a string with semi colons', SX(async function() {
let result = await page.evaluate('1 + 5;');
expect(result).toBe(6);
}));
it('should accept a string with comments', SX(async function() {
let result = await page.evaluate('2 + 5;\n// do some math!');
expect(result).toBe(7);
}));
});
describe('Page.injectFile', function() {
it('should work', SX(async function() {
const helloPath = path.join(__dirname, 'assets', 'injectedfile.js');
await page.injectFile(helloPath);
const result = await page.evaluate(() => __injected);
expect(result).toBe(42);
}));
it('should include sourcemap', SX(async function() {
const helloPath = path.join(__dirname, 'assets', 'injectedfile.js');
await page.injectFile(helloPath);
const result = await page.evaluate(() => __injectedError.stack);
expect(result).toContain(path.join('assets', 'injectedfile.js'));
}));
});
describe('Frame.evaluate', function() {
let FrameUtils = require('./frame-utils');
it('should have different execution contexts', SX(async function() {
await page.navigate(EMPTY_PAGE);
await FrameUtils.attachFrame(page, 'frame1', EMPTY_PAGE);
expect(page.frames().length).toBe(2);
let frame1 = page.frames()[0];
let frame2 = page.frames()[1];
await frame1.evaluate(() => window.FOO = 'foo');
await frame2.evaluate(() => window.FOO = 'bar');
expect(await frame1.evaluate(() => window.FOO)).toBe('foo');
expect(await frame2.evaluate(() => window.FOO)).toBe('bar');
}));
it('should execute after cross-site navigation', SX(async function() {
await page.navigate(EMPTY_PAGE);
let mainFrame = page.mainFrame();
expect(await mainFrame.evaluate(() => window.location.href)).toContain('localhost');
await page.navigate('http://127.0.0.1:' + PORT + '/empty.html');
expect(await mainFrame.evaluate(() => window.location.href)).toContain('127');
}));
});
describe('Frame.waitForFunction', function() {
it('should accept a string', SX(async function() {
const watchdog = page.waitForFunction('window.__FOO === 1');
await page.evaluate(() => window.__FOO = 1);
await watchdog;
}));
it('should poll on interval', SX(async function() {
let success = false;
const startTime = Date.now();
const polling = 100;
const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {polling})
.then(() => success = true);
await page.evaluate(() => window.__FOO = 'hit');
expect(success).toBe(false);
await page.evaluate(() => document.body.appendChild(document.createElement('div')));
await watchdog;
expect(Date.now() - startTime).not.toBeLessThan(polling / 2);
}));
it('should poll on mutation', SX(async function() {
let success = false;
const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {polling: 'mutation'})
.then(() => success = true);
await page.evaluate(() => window.__FOO = 'hit');
expect(success).toBe(false);
await page.evaluate(() => document.body.appendChild(document.createElement('div')));
await watchdog;
}));
it('should poll on raf', SX(async function() {
const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {polling: 'raf'});
await page.evaluate(() => window.__FOO = 'hit');
await watchdog;
}));
it('should throw on bad polling value', SX(async function() {
let error = null;
try {
await page.waitForFunction(() => !!document.body, {polling: 'unknown'});
} catch (e) {
error = e;
}
expect(error).toBeTruthy();
expect(error.message).toContain('polling');
}));
it('should throw negative polling interval', SX(async function() {
let error = null;
try {
await page.waitForFunction(() => !!document.body, {polling: -10});
} catch (e) {
error = e;
}
expect(error).toBeTruthy();
expect(error.message).toContain('Cannot poll with non-positive interval');
}));
});
describe('Frame.waitForSelector', function() {
let FrameUtils = require('./frame-utils');
let addElement = tag => document.body.appendChild(document.createElement(tag));
it('should immediately resolve promise if node exists', SX(async function() {
await page.navigate(EMPTY_PAGE);
let frame = page.mainFrame();
let added = false;
await frame.waitForSelector('*').then(() => added = true);
expect(added).toBe(true);
added = false;
await frame.evaluate(addElement, 'div');
await frame.waitForSelector('div').then(() => added = true);
expect(added).toBe(true);
}));
it('should resolve promise when node is added', SX(async function() {
await page.navigate(EMPTY_PAGE);
let frame = page.mainFrame();
let added = false;
frame.waitForSelector('div').then(() => added = true);
// run nop function..
await frame.evaluate(() => 42);
// .. to be sure that waitForSelector promise is not resolved yet.
expect(added).toBe(false);
await frame.evaluate(addElement, 'br');
expect(added).toBe(false);
await frame.evaluate(addElement, 'div');
expect(added).toBe(true);
}));
it('should work when node is added through innerHTML', SX(async function() {
await page.navigate(EMPTY_PAGE);
let frame = page.mainFrame();
let added = false;
frame.waitForSelector('h3 div').then(() => added = true);
expect(added).toBe(false);
await frame.evaluate(addElement, 'span');
await page.$('span', span => span.innerHTML = '<h3><div></div></h3>');
expect(added).toBe(true);
}));
it('Page.waitForSelector is shortcut for main frame', SX(async function() {
await page.navigate(EMPTY_PAGE);
await FrameUtils.attachFrame(page, 'frame1', EMPTY_PAGE);
let otherFrame = page.frames()[1];
let added = false;
page.waitForSelector('div').then(() => added = true);
await otherFrame.evaluate(addElement, 'div');
expect(added).toBe(false);
await page.evaluate(addElement, 'div');
expect(added).toBe(true);
}));
it('should run in specified frame', SX(async function() {
await FrameUtils.attachFrame(page, 'frame1', EMPTY_PAGE);
await FrameUtils.attachFrame(page, 'frame2', EMPTY_PAGE);
let frame1 = page.frames()[1];
let frame2 = page.frames()[2];
let added = false;
frame2.waitForSelector('div').then(() => added = true);
expect(added).toBe(false);
await frame1.evaluate(addElement, 'div');
expect(added).toBe(false);
await frame2.evaluate(addElement, 'div');
expect(added).toBe(true);
}));
it('should throw if evaluation failed', SX(async function() {
await page.evaluateOnNewDocument(function() {
document.querySelector = null;
});
await page.navigate(EMPTY_PAGE);
try {
await page.waitForSelector('*');
fail('Failed waitForSelector did not throw.');
} catch (e) {
expect(e.message).toContain('document.querySelector is not a function');
}
}));
it('should throw when frame is detached', SX(async function() {
await FrameUtils.attachFrame(page, 'frame1', EMPTY_PAGE);
let frame = page.frames()[1];
let waitError = null;
let waitPromise = frame.waitForSelector('.box').catch(e => waitError = e);
await FrameUtils.detachFrame(page, 'frame1');
await waitPromise;
expect(waitError).toBeTruthy();
expect(waitError.message).toContain('waitForSelector failed: frame got detached.');
}));
it('should survive navigation', SX(async function() {
let boxFound = false;
let waitForSelector = page.waitForSelector('.box').then(() => boxFound = true);
await page.navigate(EMPTY_PAGE);
expect(boxFound).toBe(false);
await page.reload();
expect(boxFound).toBe(false);
await page.navigate(PREFIX + '/grid.html');
await waitForSelector;
expect(boxFound).toBe(true);
}));
it('should wait for visible', SX(async function() {
let divFound = false;
let waitForSelector = page.waitForSelector('div', {visible: true}).then(() => divFound = true);
await page.setContent(`<div style='display: none;visibility: hidden'></div>`);
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('visibility'));
expect(await waitForSelector).toBe(true);
}));
it('should respect timeout', SX(async function() {
let error = null;
await page.waitForSelector('div', {timeout: 10}).catch(e => error = e);
expect(error).toBeTruthy();
expect(error.message).toContain('waiting failed: timeout');
}));
});
describe('Page.waitFor', function() {
it('should wait for selector', SX(async function() {
let found = false;
let waitFor = page.waitFor('div').then(() => found = true);
await page.navigate(EMPTY_PAGE);
expect(found).toBe(false);
await page.navigate(PREFIX + '/grid.html');
await waitFor;
expect(found).toBe(true);
}));
it('should timeout', SX(async function() {
let startTime = Date.now();
const timeout = 42;
await page.waitFor(timeout);
expect(Date.now() - startTime).not.toBeLessThan(timeout / 2);
}));
it('should wait for predicate', SX(async function() {
const watchdog = page.waitFor(() => window.innerWidth < 100);
page.setViewport({width: 10, height: 10});
await watchdog;
}));
it('should throw when unknown type', SX(async function() {
try {
await page.waitFor({foo: 'bar'});
fail('Failed to throw exception');
} catch (e) {
expect(e.message).toContain('Unsupported target type');
}
}));
});
describe('Page.Events.Console', function() {
it('should work', SX(async function() {
let commandArgs = [];
page.once('console', (...args) => commandArgs = args);
await Promise.all([
page.evaluate(() => console.log(5, 'hello', {foo: 'bar'})),
waitForEvents(page, 'console')
]);
expect(commandArgs).toEqual([5, 'hello', {foo: 'bar'}]);
}));
it('should work for different console API calls', SX(async function() {
let messages = [];
page.on('console', msg => messages.push(msg));
await Promise.all([
page.evaluate(() => {
// A pair of time/timeEnd generates only one Console API call.
console.time('calling console.time');
console.timeEnd('calling console.time');
console.trace('calling console.trace');
console.dir('calling console.dir');
console.warn('calling console.warn');
console.error('calling console.error');
}),
// Wait for 5 events to hit.
waitForEvents(page, 'console', 5)
]);
expect(messages[0]).toContain('calling console.time');
expect(messages.slice(1)).toEqual([
'calling console.trace',
'calling console.dir',
'calling console.warn',
'calling console.error',
]);
}));
it('should not fail for window object', SX(async function() {
let windowObj = null;
page.once('console', arg => windowObj = arg);
await Promise.all([
page.evaluate(() => console.error(window)),
waitForEvents(page, 'console')
]);
expect(windowObj).toBe('Window');
}));
});
describe('Page.navigate', function() {
it('should navigate to about:blank', SX(async function() {
let response = await page.navigate('about:blank');
expect(response).toBe(null);
}));
it('should fail when navigating to bad url', SX(async function() {
let error = null;
try {
await page.navigate('asdfasdf');
} catch (e) {
error = e;
}
expect(error.message).toContain('Cannot navigate to invalid URL');
}));
it('should fail when navigating to bad SSL', SX(async function() {
// Make sure that network events do not emit 'undefind'.
// @see https://github.com/GoogleChrome/puppeteer/issues/168
page.on('request', request => expect(request).toBeTruthy());
page.on('requestfinished', request => expect(request).toBeTruthy());
page.on('requestfailed', request => expect(request).toBeTruthy());
let error = null;
try {
await page.navigate(HTTPS_PREFIX + '/empty.html');
} catch (e) {
error = e;
}
expect(error.message).toContain('SSL Certificate error');
}));
it('should fail when main resources failed to load', SX(async function() {
let error = null;
try {
await page.navigate('chrome-devtools://devtools/bundled/inspector.html');
} catch (e) {
error = e;
}
expect(error.message).toContain('Failed to navigate');
}));
it('should fail when exceeding maximum navigation timeout', SX(async function() {
let error = null;
// Hang for request to the empty.html
server.setRoute('/empty.html', (req, res) => { });
try {
await page.navigate(PREFIX + '/empty.html', {timeout: 59});
} catch (e) {
error = e;
}
expect(error.message).toContain('Navigation Timeout Exceeded: 59ms');
}));
it('should work when navigating to valid url', SX(async function() {
const response = await page.navigate(EMPTY_PAGE);
expect(response.ok).toBe(true);
}));
it('should work when navigating to data url', SX(async function() {
const response = await page.navigate('data:text/html,hello');
expect(response.ok).toBe(true);
}));
it('should work when navigating to 404', SX(async function() {
const response = await page.navigate(PREFIX + '/not-found');
expect(response.ok).toBe(false);
expect(response.status).toBe(404);
}));
it('should return last response in redirect chain', SX(async function() {
server.setRedirect('/redirect/1.html', '/redirect/2.html');
server.setRedirect('/redirect/2.html', '/redirect/3.html');
server.setRedirect('/redirect/3.html', EMPTY_PAGE);
const response = await page.navigate(PREFIX + '/redirect/1.html');
expect(response.ok).toBe(true);
expect(response.url).toBe(EMPTY_PAGE);
}));
it('should wait for network idle to succeed navigation', SX(async function() {
let responses = [];
// Hold on to a bunch of requests without answering.
server.setRoute('/fetch-request-a.js', (req, res) => responses.push(res));
server.setRoute('/fetch-request-b.js', (req, res) => responses.push(res));
server.setRoute('/fetch-request-c.js', (req, res) => responses.push(res));
server.setRoute('/fetch-request-d.js', (req, res) => responses.push(res));
let initialFetchResourcesRequested = Promise.all([
server.waitForRequest('/fetch-request-a.js'),
server.waitForRequest('/fetch-request-b.js'),
server.waitForRequest('/fetch-request-c.js'),
]);
let secondFetchResourceRequested = server.waitForRequest('/fetch-request-d.js');
// Navigate to a page which loads immediately and then does a bunch of
// requests via javascript's fetch method.
let navigationPromise = page.navigate(PREFIX + '/networkidle.html', {
waitUntil: 'networkidle',
networkIdleTimeout: 100,
networkIdleInflight: 0, // Only be idle when there are 0 inflight requests
});
// Track when the navigation gets completed.
let navigationFinished = false;
navigationPromise.then(() => navigationFinished = true);
// Wait for the page's 'load' event.
await new Promise(fulfill => page.once('load', fulfill));
expect(navigationFinished).toBe(false);
// Wait for the initial three resources to be requested.
await initialFetchResourcesRequested;
// Expect navigation still to be not finished.
expect(navigationFinished).toBe(false);
// Respond to initial requests.
for (let response of responses) {
response.statusCode = 404;
response.end(`File not found`);
}
// Reset responses array
responses = [];
// Wait for the second round to be requested.
await secondFetchResourceRequested;
// Expect navigation still to be not finished.
expect(navigationFinished).toBe(false);
// Respond to requests.
for (let response of responses) {
response.statusCode = 404;
response.end(`File not found`);
}
const response = await navigationPromise;
// Expect navigation to succeed.
expect(response.ok).toBe(true);
}));
it('should wait for websockets to succeed navigation', SX(async function() {
let responses = [];
// Hold on to the fetch request without answering.
server.setRoute('/fetch-request.js', (req, res) => responses.push(res));
let fetchResourceRequested = server.waitForRequest('/fetch-request.js');
// Navigate to a page which loads immediately and then opens a bunch of
// websocket connections and then a fetch request.
let navigationPromise = page.navigate(PREFIX + '/websocket.html', {
waitUntil: 'networkidle',
networkIdleTimeout: 100,
networkIdleInflight: 0, // Only be idle when there are 0 inflight requests/connections
});
// Track when the navigation gets completed.
let navigationFinished = false;
navigationPromise.then(() => navigationFinished = true);
// Wait for the page's 'load' event.
await new Promise(fulfill => page.once('load', fulfill));
expect(navigationFinished).toBe(false);
// Wait for the resource to be requested.
await fetchResourceRequested;
// Expect navigation still to be not finished.
expect(navigationFinished).toBe(false);
// Respond to the request.
for (let response of responses) {
response.statusCode = 404;
response.end(`File not found`);
}
const response = await navigationPromise;
// Expect navigation to succeed.
expect(response.ok).toBe(true);
}));
it('should not leak listeners durint navigation', SX(async function() {
let warning = null;
const warningHandler = w => warning = w;
process.on('warning', warningHandler);
for (let i = 0; i < 20; ++i)
await page.navigate(EMPTY_PAGE);
process.removeListener('warning', warningHandler);
expect(warning).toBe(null);
}));
});
describe('Page.waitForNavigation', function() {
it('should work', SX(async function() {
await page.navigate(EMPTY_PAGE);
const [result] = await Promise.all([
page.waitForNavigation(),
page.evaluate(url => window.location.href = url, PREFIX + '/grid.html')
]);
const response = await result;
expect(response.ok).toBe(true);
expect(response.url).toContain('grid.html');
}));
});
describe('Page.goBack', function() {
it('should work', SX(async function() {
await page.navigate(EMPTY_PAGE);
await page.navigate(PREFIX + '/grid.html');
let response = await page.goBack();
expect(response.ok).toBe(true);
expect(response.url).toContain(EMPTY_PAGE);
response = await page.goForward();
expect(response.ok).toBe(true);
expect(response.url).toContain('/grid.html');
response = await page.goForward();
expect(response).toBe(null);
}));
});
describe('Page.setInPageCallback', function() {
it('should work', SX(async function() {
await page.setInPageCallback('callController', function(a, b) {
return a * b;
});
let result = await page.evaluate(async function() {
return await callController(9, 4);
});
expect(result).toBe(36);
}));
it('should survive navigation', SX(async function() {
await page.setInPageCallback('callController', function(a, b) {
return a * b;
});
await page.navigate(EMPTY_PAGE);
let result = await page.evaluate(async function() {
return await callController(9, 4);
});
expect(result).toBe(36);
}));
it('should await returned promise', SX(async function() {
await page.setInPageCallback('callController', function(a, b) {
return Promise.resolve(a * b);
});
let result = await page.evaluate(async function() {
return await callController(3, 5);
});
expect(result).toBe(15);
}));
});
describe('Page.setRequestInterceptor', function() {
it('should intercept', SX(async function() {
page.setRequestInterceptor(request => {
expect(request.url).toContain('empty.html');
expect(request.headers.has('User-Agent')).toBeTruthy();
expect(request.method).toBe('GET');
expect(request.postData).toBe(undefined);
request.continue();
});
const response = await page.navigate(EMPTY_PAGE);
expect(response.ok).toBe(true);
}));
it('should show custom HTTP headers', SX(async function() {
await page.setExtraHTTPHeaders(new Map(Object.entries({
foo: 'bar'
})));
page.setRequestInterceptor(request => {
expect(request.headers.get('foo')).toBe('bar');
request.continue();
});
const response = await page.navigate(EMPTY_PAGE);
expect(response.ok).toBe(true);
}));
it('should be abortable', SX(async function() {
page.setRequestInterceptor(request => {
if (request.url.endsWith('.css'))
request.abort();
else
request.continue();
});
let failedRequests = 0;
page.on('requestfailed', event => ++failedRequests);
const response = await page.navigate(PREFIX + '/one-style.html');
expect(response.ok).toBe(true);
expect(failedRequests).toBe(1);
}));
it('should amend HTTP headers', SX(async function() {
await page.navigate(EMPTY_PAGE);
page.setRequestInterceptor(request => {
request.headers.set('foo', 'bar');
request.continue();
});
const [request] = await Promise.all([
server.waitForRequest('/sleep.zzz'),
page.evaluate(() => fetch('/sleep.zzz'))
]);
expect(request.headers['foo']).toBe('bar');
}));
});
describe('Page.Events.Dialog', function() {
it('should fire', SX(async function() {
page.on('dialog', dialog => {
expect(dialog.type).toBe('alert');
expect(dialog.message()).toBe('yo');
dialog.accept();
});
await page.evaluate(() => alert('yo'));
}));
it('should allow accepting prompts', SX(async function() {
page.on('dialog', dialog => {
expect(dialog.type).toBe('prompt');
expect(dialog.message()).toBe('question?');
dialog.accept('answer!');
});
let result = await page.evaluate(() => prompt('question?'));
expect(result).toBe('answer!');
}));
it('should dismiss the prompt', SX(async function() {
page.on('dialog', dialog => {
dialog.dismiss();
});
let result = await page.evaluate(() => prompt('question?'));
expect(result).toBe(null);
}));
});
describe('Page.Events.PageError', function() {
it('should fire', SX(async function() {
let error = null;
page.once('pageerror', e => error = e);
page.navigate(PREFIX + '/error.html');
await waitForEvents(page, 'pageerror');
expect(error.message).toContain('Fancy');
}));
});
describe('Page.Events.Request', function() {
it('should fire', SX(async function() {
let requests = [];
page.on('request', request => requests.push(request));
await page.navigate(EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].url).toContain('empty.html');
}));
});
describe('Frame Management', function() {
let FrameUtils = require('./frame-utils');
it('should handle nested frames', SX(async function() {
await page.navigate(PREFIX + '/frames/nested-frames.html');
expect(FrameUtils.dumpFrames(page.mainFrame())).toBeGolden('nested-frames.txt');
}));
it('should send events when frames are manipulated dynamically', SX(async function() {
await page.navigate(EMPTY_PAGE);
// validate frameattached events
let attachedFrames = [];
page.on('frameattached', frame => attachedFrames.push(frame));
await FrameUtils.attachFrame(page, 'frame1', './assets/frame.html');
expect(attachedFrames.length).toBe(1);
expect(attachedFrames[0].url()).toContain('/assets/frame.html');
// validate framenavigated events
let navigatedFrames = [];
page.on('framenavigated', frame => navigatedFrames.push(frame));
await FrameUtils.navigateFrame(page, 'frame1', './empty.html');
expect(navigatedFrames.length).toBe(1);
expect(navigatedFrames[0].url()).toContain('/empty.html');
// validate framedetached events
let detachedFrames = [];
page.on('framedetached', frame => detachedFrames.push(frame));
await FrameUtils.detachFrame(page, 'frame1');
expect(detachedFrames.length).toBe(1);
expect(detachedFrames[0].isDetached()).toBe(true);
}));
it('should persist mainFrame on cross-process navigation', SX(async function() {
await page.navigate(EMPTY_PAGE);
let mainFrame = page.mainFrame();
await page.navigate('http://127.0.0.1:' + PORT + '/empty.html');
expect(page.mainFrame() === mainFrame).toBeTruthy();
}));
it('should not send attach/detach events for main frame', SX(async function() {
let hasEvents = false;
page.on('frameattached', frame => hasEvents = true);
page.on('framedetached', frame => hasEvents = true);
await page.navigate(EMPTY_PAGE);
expect(hasEvents).toBe(false);
}));
it('should detach child frames on navigation', SX(async function() {
let attachedFrames = [];
let detachedFrames = [];
let navigatedFrames = [];
page.on('frameattached', frame => attachedFrames.push(frame));
page.on('framedetached', frame => detachedFrames.push(frame));
page.on('framenavigated', frame => navigatedFrames.push(frame));
await page.navigate(PREFIX + '/frames/nested-frames.html');
expect(attachedFrames.length).toBe(4);
expect(detachedFrames.length).toBe(0);
expect(navigatedFrames.length).toBe(5);
attachedFrames = [];
detachedFrames = [];
navigatedFrames = [];
await page.navigate(EMPTY_PAGE);
expect(attachedFrames.length).toBe(0);
expect(detachedFrames.length).toBe(4);
expect(navigatedFrames.length).toBe(1);
}));
it('should report frame.name()', SX(async function() {
await FrameUtils.attachFrame(page, 'theFrameId', EMPTY_PAGE);
await page.evaluate(url => {
let frame = document.createElement('iframe');
frame.name = 'theFrameName';
frame.src = url;
document.body.appendChild(frame);
return new Promise(x => frame.onload = x);
}, EMPTY_PAGE);
expect(page.frames()[0].name()).toBe('');
expect(page.frames()[1].name()).toBe('theFrameId');
expect(page.frames()[2].name()).toBe('theFrameName');
}));
it('should report frame.parent()', SX(async function() {
await FrameUtils.attachFrame(page, 'frame1', EMPTY_PAGE);
await FrameUtils.attachFrame(page, 'frame2', EMPTY_PAGE);
expect(page.frames()[0].parentFrame()).toBe(null);
expect(page.frames()[1].parentFrame()).toBe(page.mainFrame());
expect(page.frames()[2].parentFrame()).toBe(page.mainFrame());
}));
});
describe('input', function() {
it('should click the button', SX(async function() {
await page.navigate(PREFIX + '/input/button.html');
await page.click('button');
expect(await page.evaluate(() => result)).toBe('Clicked');
}));
it('should fail to click a missing button', SX(async function() {
await page.navigate(PREFIX + '/input/button.html');
try {
await page.click('button.does-not-exist');
fail('Clicking the button did not throw.');
} catch (error) {
expect(error.message).toBe('No node found for selector: button.does-not-exist');
}
}));
it('should type into the textarea', SX(async function() {
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.type('Type in this text!');
expect(await page.evaluate(() => result)).toBe('Type in this text!');
}));
it('should click the button after navigation ', SX(async function() {
await page.navigate(PREFIX + '/input/button.html');
await page.click('button');
await page.navigate(PREFIX + '/input/button.html');
await page.click('button');
expect(await page.evaluate(() => result)).toBe('Clicked');
}));
it('should upload the file', SX(async function(){
await page.navigate(PREFIX + '/input/fileupload.html');
const filePath = path.relative(process.cwd(), __dirname + '/assets/file-to-upload.txt');
await page.uploadFile('input', filePath);
expect(await page.evaluate(() => {
let input = document.querySelector('input');
return input.files[0].name;
})).toBe('file-to-upload.txt');
expect(await page.evaluate(() => {
let input = document.querySelector('input');
let reader = new FileReader();
let promise = new Promise(fulfill => reader.onload = fulfill);
reader.readAsText(input.files[0]);
return promise.then(() => reader.result);
})).toBe('contents of the file');
}));
it('should move with the arrow keys', SX(async function(){
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.type('Hello World!');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('Hello World!');
for (let i = 0; i < 'World!'.length; i++)
page.press('ArrowLeft');
await page.type('inserted ');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('Hello inserted World!');
page.keyboard.down('Shift');
for (let i = 0; i < 'inserted '.length; i++)
page.press('ArrowLeft');
page.keyboard.up('Shift');
await page.press('Backspace');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('Hello World!');
}));
it('should send a character with Page.press', SX(async function() {
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.press('a', {text: 'f'});
expect(await page.$('textarea', t => t.value)).toBe('f');
await page.evaluate(() => window.addEventListener('keydown', e => e.preventDefault(), true));
await page.press('a', {text: 'y'});
expect(await page.$('textarea', t => t.value)).toBe('f');
}));
it('should send a character with sendCharacter', SX(async function() {
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.keyboard.sendCharacter('嗨');
expect(await page.$('textarea', t => t.value)).toBe('嗨');
await page.evaluate(() => window.addEventListener('keydown', e => e.preventDefault(), true));
await page.keyboard.sendCharacter('a');
expect(await page.$('textarea', t => t.value)).toBe('嗨a');
}));
it('should report shiftKey', SX(async function(){
await page.navigate(PREFIX + '/input/keyboard.html');
let keyboard = page.keyboard;
let codeForKey = {'Shift': 16, 'Alt': 18, 'Meta': 91, 'Control': 17};
for (let modifierKey in codeForKey) {
await keyboard.down(modifierKey);
expect(await page.evaluate(() => getResult())).toBe('Keydown: ' + modifierKey + ' ' + codeForKey[modifierKey] + ' [' + modifierKey + ']');
await keyboard.down('!');
expect(await page.evaluate(() => getResult())).toBe('Keydown: ! 49 [' + modifierKey + ']');
await keyboard.up('!');
expect(await page.evaluate(() => getResult())).toBe('Keyup: ! 49 [' + modifierKey + ']');
await keyboard.up(modifierKey);
expect(await page.evaluate(() => getResult())).toBe('Keyup: ' + modifierKey + ' ' + codeForKey[modifierKey] + ' []');
}
}));
it('should report multiple modifiers', SX(async function(){
await page.navigate(PREFIX + '/input/keyboard.html');
let keyboard = page.keyboard;
await keyboard.down('Control');
expect(await page.evaluate(() => getResult())).toBe('Keydown: Control 17 [Control]');
await keyboard.down('Meta');
expect(await page.evaluate(() => getResult())).toBe('Keydown: Meta 91 [Control Meta]');
await keyboard.down(';');
expect(await page.evaluate(() => getResult())).toBe('Keydown: ; 186 [Control Meta]');
await keyboard.up(';');
expect(await page.evaluate(() => getResult())).toBe('Keyup: ; 186 [Control Meta]');
await keyboard.up('Control');
expect(await page.evaluate(() => getResult())).toBe('Keyup: Control 17 [Meta]');
await keyboard.up('Meta');
expect(await page.evaluate(() => getResult())).toBe('Keyup: Meta 91 []');
}));
it('should send proper codes while typing', SX(async function(){
await page.navigate(PREFIX + '/input/keyboard.html');
await page.type('!');
expect(await page.evaluate(() => getResult())).toBe(
[ 'Keydown: ! 49 []',
'Keypress: ! 33 33 33 []',
'Keyup: ! 49 []'].join('\n'));
await page.type('^');
expect(await page.evaluate(() => getResult())).toBe(
[ 'Keydown: ^ 54 []',
'Keypress: ^ 94 94 94 []',
'Keyup: ^ 54 []'].join('\n'));
}));
it('should send propery codes while typing with shift', SX(async function(){
await page.navigate(PREFIX + '/input/keyboard.html');
let keyboard = page.keyboard;
await keyboard.down('Shift');
await page.type('~');
expect(await page.evaluate(() => getResult())).toBe(
[ 'Keydown: Shift 16 [Shift]',
'Keydown: ~ 192 [Shift]', // 192 is ` keyCode
'Keypress: ~ 126 126 126 [Shift]', // 126 is ~ charCode
'Keyup: ~ 192 [Shift]'].join('\n'));
await keyboard.up('Shift');
}));
it('should not type canceled events', SX(async function(){
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.evaluate(() => {
window.addEventListener('keydown', event => {
event.stopPropagation();
event.stopImmediatePropagation();
if (event.key === 'l')
event.preventDefault();
if (event.key === 'o')
Promise.resolve().then(() => event.preventDefault());
}, false);
});
await page.type('Hello World!');
expect(await page.evaluate(() => textarea.value)).toBe('He Wrd!');
}));
it('keyboard.modifiers()', SX(async function(){
let keyboard = page.keyboard;
expect(keyboard._modifiers).toBe(0);
await keyboard.down('Shift');
expect(keyboard._modifiers).toBe(8);
await keyboard.down('Alt');
expect(keyboard._modifiers).toBe(9);
await keyboard.up('Shift');
await keyboard.up('Alt');
expect(keyboard._modifiers).toBe(0);
}));
it('should resize the textarea', SX(async function(){
await page.navigate(PREFIX + '/input/textarea.html');
let {x, y, width, height} = await page.evaluate(dimensions);
let mouse = page.mouse;
await mouse.move(x + width - 4, y + height - 4);
await mouse.down();
await mouse.move(x + width + 100, y + height + 100);
await mouse.up();
let newDimensions = await page.evaluate(dimensions);
expect(newDimensions.width).toBe(width + 104);
expect(newDimensions.height).toBe(height + 104);
}));
it('should scroll and click the button', SX(async function(){
await page.navigate(PREFIX + '/input/scrollable.html');
await page.click('#button-5');
expect(await page.$('#button-5', button => button.textContent)).toBe('clicked');
await page.click('#button-80');
expect(await page.$('#button-80', button => button.textContent)).toBe('clicked');
}));
it('should click a partially obscured button', SX(async function() {
await page.navigate(PREFIX + '/input/button.html');
await page.$('button', button => {
button.textContent = 'Some really long text that will go offscreen';
button.style.position = 'absolute';
button.style.left = '368px';
});
await page.click('button');
expect(await page.evaluate(() => window.result)).toBe('Clicked');
}));
it('should select the text with mouse', SX(async function(){
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
let text = 'This is the text that we are going to try to select. Let\'s see how it goes.';
await page.type(text);
await page.$('textarea', textarea => textarea.scrollTop = 0);
let {x, y} = await page.evaluate(dimensions);
await page.mouse.move(x + 2,y + 2);
await page.mouse.down();
await page.mouse.move(100,100);
await page.mouse.up();
expect(await page.evaluate(() => window.getSelection().toString())).toBe(text);
}));
it('should select the text by triple clicking', SX(async function(){
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
let text = 'This is the text that we are going to try to select. Let\'s see how it goes.';
await page.type(text);
await page.click('textarea');
await page.click('textarea', {clickCount: 2});
await page.click('textarea', {clickCount: 3});
expect(await page.evaluate(() => window.getSelection().toString())).toBe(text);
}));
it('should trigger hover state', SX(async function(){
await page.navigate(PREFIX + '/input/scrollable.html');
await page.hover('#button-6');
expect(await page.$('button:hover', button => button.id)).toBe('button-6');
await page.hover('#button-2');
expect(await page.$('button:hover', button => button.id)).toBe('button-2');
await page.hover('#button-91');
expect(await page.$('button:hover', button => button.id)).toBe('button-91');
}));
it('should fire contextmenu event on right click', SX(async function(){
await page.navigate(PREFIX + '/input/scrollable.html');
await page.click('#button-8', {button: 'right'});
expect(await page.$('#button-8', button => button.textContent)).toBe('context menu');
}));
it('should set modifier keys on click', SX(async function(){
await page.navigate(PREFIX + '/input/scrollable.html');
await page.$('#button-3', button => button.addEventListener('mousedown', e => window.lastEvent = e, true));
let modifiers = {'Shift': 'shiftKey', 'Control': 'ctrlKey', 'Alt': 'altKey', 'Meta': 'metaKey'};
for (let modifier in modifiers) {
await page.keyboard.down(modifier);
await page.click('#button-3');
if (!(await page.evaluate(mod => window.lastEvent[mod], modifiers[modifier])))
fail(modifiers[modifier] + ' should be true');
await page.keyboard.up(modifier);
}
await page.click('#button-3');
for (let modifier in modifiers) {
if ((await page.evaluate(mod => window.lastEvent[mod], modifiers[modifier])))
fail(modifiers[modifier] + ' should be false');
}
}));
it('should specify repeat property', SX(async function(){
await page.navigate(PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.$('textarea', textarea => textarea.addEventListener('keydown', e => window.lastEvent = e, true));
await page.keyboard.down('a', {text: 'a'});
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(false);
await page.press('a');
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(true);
}));
function dimensions() {
let rect = document.querySelector('textarea').getBoundingClientRect();
return {
x: rect.left,
y: rect.top,
width: rect.width,
height: rect.height
};
}
});
describe('Page.setUserAgent', function() {
it('should work', SX(async function() {
expect(await page.evaluate(() => navigator.userAgent)).toContain('Mozilla');
page.setUserAgent('foobar');
page.navigate(EMPTY_PAGE);
let request = await server.waitForRequest('/empty.html');
expect(request.headers['user-agent']).toBe('foobar');
}));
it('should emulate device user-agent', SX(async function() {
await page.navigate(PREFIX + '/mobile.html');
expect(await page.evaluate(() => navigator.userAgent)).toContain('Chrome');
await page.setUserAgent(iPhone.userAgent);
expect(await page.evaluate(() => navigator.userAgent)).toContain('Safari');
}));
});
describe('Page.setExtraHTTPHeaders', function() {
it('should work', SX(async function() {
await page.setExtraHTTPHeaders(new Map(Object.entries({
foo: 'bar'
})));
page.navigate(EMPTY_PAGE);
let request = await server.waitForRequest('/empty.html');
expect(request.headers['foo']).toBe('bar');
}));
});
describe('Page.setContent', function() {
it('should work', SX(async function() {
await page.setContent('<div>hello</div>');
let result = await page.evaluate(() => document.body.innerHTML);
expect(result).toBe('<div>hello</div>');
}));
});
describe('Network Events', function() {
it('Page.Events.Request', SX(async function() {
let requests = [];
page.on('request', request => requests.push(request));
await page.navigate(EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].url).toBe(EMPTY_PAGE);
expect(requests[0].method).toBe('GET');
expect(requests[0].response()).toBeTruthy();
}));
it('Page.Events.Request should report post data', SX(async function() {
await page.navigate(EMPTY_PAGE);
server.setRoute('/post', (req, res) => res.end());
let request = null;
page.on('request', r => request = r);
await page.evaluate(() => fetch('./post', { method: 'POST', body: JSON.stringify({foo: 'bar'})}));
expect(request).toBeTruthy();
expect(request.postData).toBe('{"foo":"bar"}');
}));
it('Page.Events.Response', SX(async function() {
let responses = [];
page.on('response', response => responses.push(response));
await page.navigate(EMPTY_PAGE);
expect(responses.length).toBe(1);
expect(responses[0].url).toBe(EMPTY_PAGE);
expect(responses[0].status).toBe(200);
expect(responses[0].ok).toBe(true);
expect(responses[0].request()).toBeTruthy();
}));
it('Page.Events.Response should provide body', SX(async function() {
let response = null;
page.on('response', r => response = r);
await page.navigate(PREFIX + '/simple.json');
expect(response).toBeTruthy();
expect(await response.text()).toBe('{"foo": "bar"}\n');
expect(await response.json()).toEqual({foo: 'bar'});
}));
it('Page.Events.Response should not report body unless request is finished', SX(async() => {
await page.navigate(EMPTY_PAGE);
// Setup server to trap request.
let serverResponse = null;
server.setRoute('/get', (req, res) => {
serverResponse = res;
res.write('hello ');
});
// Setup page to trap response.
let pageResponse = null;
let requestFinished = false;
page.on('response', r => pageResponse = r);
page.on('requestfinished', () => requestFinished = true);
// send request and wait for server response
await Promise.all([
page.evaluate(() => fetch('./get', { method: 'GET'})),
waitForEvents(page, 'response')
]);
expect(serverResponse).toBeTruthy();
expect(pageResponse).toBeTruthy();
expect(pageResponse.status).toBe(200);
expect(requestFinished).toBe(false);
let responseText = pageResponse.text();
// Write part of the response and wait for it to be flushed.
await new Promise(x => serverResponse.write('wor', x));
// Finish response.
await new Promise(x => serverResponse.end('ld!', x));
expect(await responseText).toBe('hello world!');
}));
it('Page.Events.RequestFailed', SX(async function() {
page.setRequestInterceptor(request => {
if (request.url.endsWith('css'))
request.abort();
else
request.continue();
});
let failedRequests = [];
page.on('requestfailed', request => failedRequests.push(request));
await page.navigate(PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
}));
it('Page.Events.RequestFinished', SX(async function() {
let requests = [];
page.on('requestfinished', request => requests.push(request));
await page.navigate(EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].url).toBe(EMPTY_PAGE);
expect(requests[0].response()).toBeTruthy();
}));
it('should fire events in proper order', SX(async function() {
let events = [];
page.on('request', request => events.push('request'));
page.on('response', response => events.push('response'));
page.on('requestfinished', request => events.push('requestfinished'));
await page.navigate(EMPTY_PAGE);
expect(events).toEqual(['request', 'response', 'requestfinished']);
}));
it('should support redirects', SX(async function() {
let events = [];
page.on('request', request => events.push(`${request.method} ${request.url}`));
page.on('response', response => events.push(`${response.status} ${response.url}`));
page.on('requestfinished', request => events.push(`DONE ${request.url}`));
page.on('requestfailed', request => events.push(`FAIL ${request.url}`));
server.setRedirect('/foo.html', '/empty.html');
const FOO_URL = PREFIX + '/foo.html';
await page.navigate(FOO_URL);
expect(events).toEqual([
`GET ${FOO_URL}`,
`302 ${FOO_URL}`,
`DONE ${FOO_URL}`,
`GET ${EMPTY_PAGE}`,
`200 ${EMPTY_PAGE}`,
`DONE ${EMPTY_PAGE}`
]);
}));
});
describe('Page.addScriptTag', function() {
it('should work', SX(async function() {
await page.navigate(EMPTY_PAGE);
await page.addScriptTag('/injectedfile.js');
expect(await page.evaluate(() => __injected)).toBe(42);
}));
});
describe('Page.url', function() {
it('should work', SX(async function() {
expect(page.url()).toBe('about:blank');
await page.navigate(EMPTY_PAGE);
expect(page.url()).toBe(EMPTY_PAGE);
}));
});
describe('Page.viewport', function() {
it('should get the proper viewport size', SX(async function() {
expect(page.viewport()).toEqual({width: 800, height: 600});
await page.setViewport({width: 123, height: 456});
expect(page.viewport()).toEqual({width: 123, height: 456});
}));
it('should support mobile emulation', SX(async function() {
await page.navigate(PREFIX + '/mobile.html');
expect(await page.evaluate(() => window.innerWidth)).toBe(800);
await page.setViewport(iPhone.viewport);
expect(await page.evaluate(() => window.innerWidth)).toBe(375);
await page.setViewport({width: 400, height: 300});
expect(await page.evaluate(() => window.innerWidth)).toBe(400);
}));
it('should support touch emulation', SX(async function() {
await page.navigate(PREFIX + '/mobile.html');
expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(false);
await page.setViewport(iPhone.viewport);
expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(true);
await page.setViewport({width: 100, height: 100});
expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(false);
}));
it('should support landscape emulation', SX(async function() {
await page.navigate(PREFIX + '/mobile.html');
expect(await page.evaluate(() => screen.orientation.type)).toBe('portrait-primary');
await page.setViewport(iPhoneLandscape.viewport);
expect(await page.evaluate(() => screen.orientation.type)).toBe('landscape-primary');
await page.setViewport({width: 100, height: 100});
expect(await page.evaluate(() => screen.orientation.type)).toBe('portrait-primary');
}));
});
describe('Page.evaluateOnNewDocument', function() {
it('should evaluate before anything else on the page', SX(async function() {
await page.evaluateOnNewDocument(function(){
window.injected = 123;
});
await page.navigate(PREFIX + '/tamperable.html');
expect(await page.evaluate(() => window.result)).toBe(123);
}));
});
describe('Page.pdf', function() {
const outputFile = __dirname + '/assets/output.pdf';
afterEach(function() {
fs.unlinkSync(outputFile);
});
// Printing to pdf is currently only supported in headless
(headless ? it : xit)('should print to pdf', SX(async function() {
await page.navigate(PREFIX + '/grid.html');
await page.pdf({path: outputFile});
expect(fs.readFileSync(outputFile).byteLength).toBeGreaterThan(0);
}));
});
describe('Page.plainText', function() {
it('should return the page text', SX(async function(){
await page.setContent('<div>the result text</div>');
expect(await page.plainText()).toBe('the result text');
}));
});
describe('Page.title', function() {
it('should return the page title', SX(async function(){
await page.navigate(PREFIX + '/input/button.html');
expect(await page.title()).toBe('Button test');
}));
});
describe('Query selector', function() {
it('Page.$', SX(async function() {
await page.navigate(PREFIX + '/playground.html');
expect(await page.$('#first', element => element.textContent)).toBe('First div');
expect(await page.$('#second span', element => element.textContent)).toBe('Inner span');
expect(await page.$('#first', (element, arg1) => arg1, 'value1')).toBe('value1');
expect(await page.$('#first', (element, arg1, arg2) => arg2, 'value1', 'value2')).toBe('value2');
expect(await page.$('doesnot-exist', element => 5)).toBe(null);
expect(await page.$('button', function(element, arg1) {
element.textContent = arg1;
return true;
}, 'new button text')).toBe(true);
expect(await page.$('button', function(element) {
return element.textContent;
})).toBe('new button text');
}));
it('Page.$$', SX(async function() {
await page.navigate(PREFIX + '/playground.html');
expect((await page.$$('div', element => element.textContent)).length).toBe(2);
expect((await page.$$('div', (element, index) => index))[0]).toBe(0);
expect((await page.$$('div', (element, index) => index))[1]).toBe(1);
expect((await page.$$('doesnotexist', function(){})).length).toBe(0);
expect((await page.$$('div', element => element.textContent))[0]).toBe('First div');
expect((await page.$$('span', (element, index, arg1) => arg1, 'value1'))[0]).toBe('value1');
}));
});
describe('Page.screenshot', function() {
it('should work', SX(async function() {
await page.setViewport({width: 500, height: 500});
await page.navigate(PREFIX + '/grid.html');
let screenshot = await page.screenshot();
expect(screenshot).toBeGolden('screenshot-sanity.png');
}));
it('should clip rect', SX(async function() {
await page.setViewport({width: 500, height: 500});
await page.navigate(PREFIX + '/grid.html');
let screenshot = await page.screenshot({
clip: {
x: 50,
y: 100,
width: 150,
height: 100
}
});
expect(screenshot).toBeGolden('screenshot-clip-rect.png');
}));
it('should work for offscreen clip', SX(async function() {
await page.setViewport({width: 500, height: 500});
await page.navigate(PREFIX + '/grid.html');
let screenshot = await page.screenshot({
clip: {
x: 50,
y: 600,
width: 100,
height: 100
}
});
expect(screenshot).toBeGolden('screenshot-offscreen-clip.png');
}));
it('should run in parallel', SX(async function() {
await page.setViewport({width: 500, height: 500});
await page.navigate(PREFIX + '/grid.html');
let promises = [];
for (let i = 0; i < 3; ++i) {
promises.push(page.screenshot({
clip: {
x: 50 * i,
y: 0,
width: 50,
height: 50
}
}));
}
let screenshots = await Promise.all(promises);
expect(screenshots[1]).toBeGolden('grid-cell-1.png');
}));
it('should take fullPage screenshots', SX(async function() {
await page.setViewport({width: 500, height: 500});
await page.navigate(PREFIX + '/grid.html');
let screenshot = await page.screenshot({
fullPage: true
});
expect(screenshot).toBeGolden('screenshot-grid-fullpage.png');
}));
it('should run in parallel in multiple pages', SX(async function() {
const N = 2;
let pages = await Promise.all(Array(N).fill(0).map(async() => {
let page = await browser.newPage();
await page.navigate(PREFIX + '/grid.html');
return page;
}));
let promises = [];
for (let i = 0; i < N; ++i)
promises.push(pages[i].screenshot({ clip: { x: 50 * i, y: 0, width: 50, height: 50 } }));
let screenshots = await Promise.all(promises);
for (let i = 0; i < N; ++i)
expect(screenshots[i]).toBeGolden(`grid-cell-${i}.png`);
await Promise.all(pages.map(page => page.close()));
}));
});
describe('Tracing', function() {
let outputFile = path.join(__dirname, 'assets', 'trace.json');
afterEach(function() {
fs.unlinkSync(outputFile);
});
it('should output a trace', SX(async function() {
await page.tracing.start({screenshots: true, path: outputFile});
await page.navigate(PREFIX + '/grid.html');
await page.tracing.stop();
expect(fs.existsSync(outputFile)).toBe(true);
}));
it('should throw if tracing on two pages', SX(async function() {
await page.tracing.start({path: outputFile});
let newPage = await browser.newPage();
let error = null;
try {
await newPage.tracing.start({path: outputFile});
} catch (e) {
error = e;
}
await newPage.close();
expect(error).toBeTruthy();
await page.tracing.stop();
}));
});
});
if (process.env.COVERAGE) {
describe('COVERAGE', function(){
let coverage = helper.publicAPICoverage();
let disabled = new Set();
if (!headless)
disabled.add('page.pdf');
for (let method of coverage.keys()) {
(disabled.has(method) ? xit : it)(`public api '${method}' should be called`, SX(async function(){
expect(coverage.get(method)).toBe(true);
}));
}
});
}
/**
* @param {!EventEmitter} emitter
* @param {string} eventName
* @param {number=} eventCount
* @return {!Promise}
*/
function waitForEvents(emitter, eventName, eventCount = 1) {
let fulfill;
let promise = new Promise(x => fulfill = x);
emitter.on(eventName, onEvent);
return promise;
function onEvent() {
--eventCount;
if (eventCount)
return;
emitter.removeListener(eventName, onEvent);
fulfill();
}
}
// Since Jasmine doesn't like async functions, they should be wrapped
// in a SX function.
function SX(fun) {
return done => Promise.resolve(fun()).then(done).catch(done.fail);
}