puppeteer/test/network.spec.js

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/**
* Copyright 2018 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 path = require('path');
const utils = require('./utils');
const expect = require('expect');
const {getTestState,setupTestBrowserHooks,setupTestPageAndContextHooks} = require('./mocha-utils');
describe('network', function() {
setupTestBrowserHooks();
setupTestPageAndContextHooks();
describe('Page.Events.Request', function() {
it('should fire for navigation requests', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('request', request => !utils.isFavicon(request) && requests.push(request));
await page.goto(server.EMPTY_PAGE);
expect(requests.length).toBe(1);
});
itFailsFirefox('should fire for iframes', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('request', request => !utils.isFavicon(request) && requests.push(request));
await page.goto(server.EMPTY_PAGE);
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
expect(requests.length).toBe(2);
});
it('should fire for fetches', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('request', request => !utils.isFavicon(request) && requests.push(request));
await page.goto(server.EMPTY_PAGE);
await page.evaluate(() => fetch('/empty.html'));
expect(requests.length).toBe(2);
});
});
describe('Request.frame', function() {
it('should work for main frame navigation request', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('request', request => !utils.isFavicon(request) && requests.push(request));
await page.goto(server.EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].frame()).toBe(page.mainFrame());
});
itFailsFirefox('should work for subframe navigation request', async() => {
const {page, server} = getTestState();
await page.goto(server.EMPTY_PAGE);
const requests = [];
page.on('request', request => !utils.isFavicon(request) && requests.push(request));
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].frame()).toBe(page.frames()[1]);
});
it('should work for fetch requests', async() => {
const {page, server} = getTestState();
await page.goto(server.EMPTY_PAGE);
let requests = [];
page.on('request', request => !utils.isFavicon(request) && requests.push(request));
await page.evaluate(() => fetch('/digits/1.png'));
requests = requests.filter(request => !request.url().includes('favicon'));
expect(requests.length).toBe(1);
expect(requests[0].frame()).toBe(page.mainFrame());
});
});
describeFailsFirefox('Request.headers', function() {
it('should work', async() => {
const {page, server, isChrome} = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
if (isChrome)
expect(response.request().headers()['user-agent']).toContain('Chrome');
else
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
describeFailsFirefox('Response.headers', function() {
it('should work', async() => {
const {page, server} = getTestState();
server.setRoute('/empty.html', (req, res) => {
res.setHeader('foo', 'bar');
res.end();
});
const response = await page.goto(server.EMPTY_PAGE);
expect(response.headers()['foo']).toBe('bar');
});
});
describeFailsFirefox('Response.fromCache', function() {
it('should return |false| for non-cached content', async() => {
const {page, server} = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.fromCache()).toBe(false);
});
it('should work', async() => {
const {page, server} = getTestState();
const responses = new Map();
page.on('response', r => !utils.isFavicon(r.request()) && responses.set(r.url().split('/').pop(), r));
// Load and re-load to make sure it's cached.
await page.goto(server.PREFIX + '/cached/one-style.html');
await page.reload();
expect(responses.size).toBe(2);
expect(responses.get('one-style.css').status()).toBe(200);
expect(responses.get('one-style.css').fromCache()).toBe(true);
expect(responses.get('one-style.html').status()).toBe(304);
expect(responses.get('one-style.html').fromCache()).toBe(false);
});
});
describeFailsFirefox('Response.fromServiceWorker', function() {
it('should return |false| for non-service-worker content', async() => {
const {page, server} = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.fromServiceWorker()).toBe(false);
});
it('Response.fromServiceWorker', async() => {
const {page, server} = getTestState();
const responses = new Map();
page.on('response', r => responses.set(r.url().split('/').pop(), r));
// Load and re-load to make sure serviceworker is installed and running.
await page.goto(server.PREFIX + '/serviceworkers/fetch/sw.html', {waitUntil: 'networkidle2'});
await page.evaluate(async() => await window.activationPromise);
await page.reload();
expect(responses.size).toBe(2);
expect(responses.get('sw.html').status()).toBe(200);
expect(responses.get('sw.html').fromServiceWorker()).toBe(true);
expect(responses.get('style.css').status()).toBe(200);
expect(responses.get('style.css').fromServiceWorker()).toBe(true);
});
});
describeFailsFirefox('Request.postData', function() {
it('should work', async() => {
const {page, server} = getTestState();
await page.goto(server.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('should be |undefined| when there is no post data', async() => {
const {page, server} = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().postData()).toBe(undefined);
});
});
describeFailsFirefox('Response.text', function() {
it('should work', async() => {
const {page, server} = getTestState();
const response = await page.goto(server.PREFIX + '/simple.json');
const responseText = (await response.text()).trimEnd();
expect(responseText).toBe('{"foo": "bar"}');
});
it('should return uncompressed text', async() => {
const {page, server} = getTestState();
server.enableGzip('/simple.json');
const response = await page.goto(server.PREFIX + '/simple.json');
expect(response.headers()['content-encoding']).toBe('gzip');
const responseText = (await response.text()).trimEnd();
expect(responseText).toBe('{"foo": "bar"}');
});
it('should throw when requesting body of redirected response', async() => {
const {page, server} = getTestState();
server.setRedirect('/foo.html', '/empty.html');
const response = await page.goto(server.PREFIX + '/foo.html');
const redirectChain = response.request().redirectChain();
expect(redirectChain.length).toBe(1);
const redirected = redirectChain[0].response();
expect(redirected.status()).toBe(302);
let error = null;
await redirected.text().catch(error_ => error = error_);
expect(error.message).toContain('Response body is unavailable for redirect responses');
});
it('should wait until response completes', async() => {
const {page, server} = getTestState();
await page.goto(server.EMPTY_PAGE);
// Setup server to trap request.
let serverResponse = null;
server.setRoute('/get', (req, res) => {
serverResponse = res;
// In Firefox, |fetch| will be hanging until it receives |Content-Type| header
// from server.
res.setHeader('Content-Type', 'text/plain; charset=utf-8');
res.write('hello ');
});
// Setup page to trap response.
let requestFinished = false;
page.on('requestfinished', r => requestFinished = requestFinished || r.url().includes('/get'));
// send request and wait for server response
const [pageResponse] = await Promise.all([
page.waitForResponse(r => !utils.isFavicon(r.request())),
page.evaluate(() => fetch('./get', {method: 'GET'})),
server.waitForRequest('/get'),
]);
expect(serverResponse).toBeTruthy();
expect(pageResponse).toBeTruthy();
expect(pageResponse.status()).toBe(200);
expect(requestFinished).toBe(false);
const 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!');
});
});
describeFailsFirefox('Response.json', function() {
it('should work', async() => {
const {page, server} = getTestState();
const response = await page.goto(server.PREFIX + '/simple.json');
expect(await response.json()).toEqual({foo: 'bar'});
});
});
describeFailsFirefox('Response.buffer', function() {
it('should work', async() => {
const {page, server} = getTestState();
const response = await page.goto(server.PREFIX + '/pptr.png');
const imageBuffer = fs.readFileSync(path.join(__dirname, 'assets', 'pptr.png'));
const responseBuffer = await response.buffer();
expect(responseBuffer.equals(imageBuffer)).toBe(true);
});
it('should work with compression', async() => {
const {page, server} = getTestState();
server.enableGzip('/pptr.png');
const response = await page.goto(server.PREFIX + '/pptr.png');
const imageBuffer = fs.readFileSync(path.join(__dirname, 'assets', 'pptr.png'));
const responseBuffer = await response.buffer();
expect(responseBuffer.equals(imageBuffer)).toBe(true);
});
});
describeFailsFirefox('Response.statusText', function() {
it('should work', async() => {
const {page, server} = getTestState();
server.setRoute('/cool', (req, res) => {
res.writeHead(200, 'cool!');
res.end();
});
const response = await page.goto(server.PREFIX + '/cool');
expect(response.statusText()).toBe('cool!');
});
});
describeFailsFirefox('Network Events', function() {
it('Page.Events.Request', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('request', request => requests.push(request));
await page.goto(server.EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].url()).toBe(server.EMPTY_PAGE);
expect(requests[0].resourceType()).toBe('document');
expect(requests[0].method()).toBe('GET');
expect(requests[0].response()).toBeTruthy();
expect(requests[0].frame() === page.mainFrame()).toBe(true);
expect(requests[0].frame().url()).toBe(server.EMPTY_PAGE);
});
it('Page.Events.Response', async() => {
const {page, server} = getTestState();
const responses = [];
page.on('response', response => responses.push(response));
await page.goto(server.EMPTY_PAGE);
expect(responses.length).toBe(1);
expect(responses[0].url()).toBe(server.EMPTY_PAGE);
expect(responses[0].status()).toBe(200);
expect(responses[0].ok()).toBe(true);
expect(responses[0].request()).toBeTruthy();
const remoteAddress = responses[0].remoteAddress();
// Either IPv6 or IPv4, depending on environment.
expect(remoteAddress.ip.includes('::1') || remoteAddress.ip === '127.0.0.1').toBe(true);
expect(remoteAddress.port).toBe(server.PORT);
});
it('Page.Events.RequestFailed', async() => {
const {page, server, isChrome} = getTestState();
await page.setRequestInterception(true);
page.on('request', request => {
if (request.url().endsWith('css'))
request.abort();
else
request.continue();
});
const failedRequests = [];
page.on('requestfailed', request => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
it('Page.Events.RequestFinished', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('requestfinished', request => requests.push(request));
await page.goto(server.EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].url()).toBe(server.EMPTY_PAGE);
expect(requests[0].response()).toBeTruthy();
expect(requests[0].frame() === page.mainFrame()).toBe(true);
expect(requests[0].frame().url()).toBe(server.EMPTY_PAGE);
});
it('should fire events in proper order', async() => {
const {page, server} = getTestState();
const events = [];
page.on('request', request => events.push('request'));
page.on('response', response => events.push('response'));
page.on('requestfinished', request => events.push('requestfinished'));
await page.goto(server.EMPTY_PAGE);
expect(events).toEqual(['request', 'response', 'requestfinished']);
});
it('should support redirects', async() => {
const {page, server} = getTestState();
const 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 = server.PREFIX + '/foo.html';
const response = await page.goto(FOO_URL);
expect(events).toEqual([
`GET ${FOO_URL}`,
`302 ${FOO_URL}`,
`DONE ${FOO_URL}`,
`GET ${server.EMPTY_PAGE}`,
`200 ${server.EMPTY_PAGE}`,
`DONE ${server.EMPTY_PAGE}`
]);
// Check redirect chain
const redirectChain = response.request().redirectChain();
expect(redirectChain.length).toBe(1);
expect(redirectChain[0].url()).toContain('/foo.html');
expect(redirectChain[0].response().remoteAddress().port).toBe(server.PORT);
});
});
describe('Request.isNavigationRequest', () => {
itFailsFirefox('should work', async() => {
const {page, server} = getTestState();
const requests = new Map();
page.on('request', request => requests.set(request.url().split('/').pop(), request));
server.setRedirect('/rrredirect', '/frames/one-frame.html');
await page.goto(server.PREFIX + '/rrredirect');
expect(requests.get('rrredirect').isNavigationRequest()).toBe(true);
expect(requests.get('one-frame.html').isNavigationRequest()).toBe(true);
expect(requests.get('frame.html').isNavigationRequest()).toBe(true);
expect(requests.get('script.js').isNavigationRequest()).toBe(false);
expect(requests.get('style.css').isNavigationRequest()).toBe(false);
});
itFailsFirefox('should work with request interception', async() => {
const {page, server} = getTestState();
const requests = new Map();
page.on('request', request => {
requests.set(request.url().split('/').pop(), request);
request.continue();
});
await page.setRequestInterception(true);
server.setRedirect('/rrredirect', '/frames/one-frame.html');
await page.goto(server.PREFIX + '/rrredirect');
expect(requests.get('rrredirect').isNavigationRequest()).toBe(true);
expect(requests.get('one-frame.html').isNavigationRequest()).toBe(true);
expect(requests.get('frame.html').isNavigationRequest()).toBe(true);
expect(requests.get('script.js').isNavigationRequest()).toBe(false);
expect(requests.get('style.css').isNavigationRequest()).toBe(false);
});
it('should work when navigating to image', async() => {
const {page, server} = getTestState();
const requests = [];
page.on('request', request => requests.push(request));
await page.goto(server.PREFIX + '/pptr.png');
expect(requests[0].isNavigationRequest()).toBe(true);
});
});
describeFailsFirefox('Page.setExtraHTTPHeaders', function() {
it('should work', async() => {
const {page, server} = getTestState();
await page.setExtraHTTPHeaders({
foo: 'bar'
});
const [request] = await Promise.all([
server.waitForRequest('/empty.html'),
page.goto(server.EMPTY_PAGE),
]);
expect(request.headers['foo']).toBe('bar');
});
it('should throw for non-string header values', async() => {
const {page} = getTestState();
let error = null;
try {
await page.setExtraHTTPHeaders({'foo': 1});
} catch (error_) {
error = error_;
}
expect(error.message).toBe('Expected value of header "foo" to be String, but "number" is found.');
});
});
describeFailsFirefox('Page.authenticate', function() {
it('should work', async() => {
const {page, server} = getTestState();
server.setAuth('/empty.html', 'user', 'pass');
let response = await page.goto(server.EMPTY_PAGE);
expect(response.status()).toBe(401);
await page.authenticate({
username: 'user',
password: 'pass'
});
response = await page.reload();
expect(response.status()).toBe(200);
});
it('should fail if wrong credentials', async() => {
const {page, server} = getTestState();
// Use unique user/password since Chrome caches credentials per origin.
server.setAuth('/empty.html', 'user2', 'pass2');
await page.authenticate({
username: 'foo',
password: 'bar'
});
const response = await page.goto(server.EMPTY_PAGE);
expect(response.status()).toBe(401);
});
it('should allow disable authentication', async() => {
const {page, server} = getTestState();
// Use unique user/password since Chrome caches credentials per origin.
server.setAuth('/empty.html', 'user3', 'pass3');
await page.authenticate({
username: 'user3',
password: 'pass3'
});
let response = await page.goto(server.EMPTY_PAGE);
expect(response.status()).toBe(200);
await page.authenticate(null);
// Navigate to a different origin to bust Chrome's credential caching.
response = await page.goto(server.CROSS_PROCESS_PREFIX + '/empty.html');
expect(response.status()).toBe(401);
});
});
});