puppeteer/test/network.spec.js
Jack Franklin 17cd8703f9
chore: migrate unit tests to Mocha (#5600)
Rather than maintain our own test runner we should instead lean on the community and use Mocha which is very popular and also our test runner of choice in DevTools too.

Note that this commit doesn't remove the TestRunner source as it's still used for other unit tests, but they will be updated in a future PR and then we can remove the TestRunner.

The main bulk of this PR is updating the tests as the old TestRunner passed in contextual data via the `it` function callback whereas Mocha does not, so we introduce some helpers for the tests to make it easier.
2020-04-09 07:56:25 +02:00

511 lines
20 KiB
JavaScript

/**
* 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');
expect(await response.text()).toBe('{"foo": "bar"}\n');
});
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');
expect(await response.text()).toBe('{"foo": "bar"}\n');
});
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(e => error = e);
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 (e) {
error = e;
}
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);
});
});
});