playwright/test/network.spec.js

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/**
* Copyright 2018 Google Inc. All rights reserved.
* Modifications copyright (c) Microsoft Corporation.
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*
* 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');
/**
* @type {PageTestSuite}
*/
module.exports.describe = function({testRunner, expect, MAC, WIN, FFOX, CHROMIUM, WEBKIT}) {
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const {describe, xdescribe, fdescribe} = testRunner;
const {it, fit, xit, dit} = testRunner;
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const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
describe('Page.Events.Request', function() {
it('should fire for navigation requests', async({page, server}) => {
const requests = [];
page.on('request', request => requests.push(request));
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await page.goto(server.EMPTY_PAGE);
expect(requests.length).toBe(1);
});
it('should fire for iframes', async({page, server}) => {
const requests = [];
page.on('request', request => requests.push(request));
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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({page, server}) => {
const requests = [];
page.on('request', request => requests.push(request));
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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({page, server}) => {
const requests = [];
page.on('request', request => requests.push(request));
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await page.goto(server.EMPTY_PAGE);
expect(requests.length).toBe(1);
expect(requests[0].frame()).toBe(page.mainFrame());
});
it('should work for subframe navigation request', async({page, server}) => {
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await page.goto(server.EMPTY_PAGE);
const requests = [];
page.on('request', request => requests.push(request));
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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({page, server}) => {
await page.goto(server.EMPTY_PAGE);
let requests = [];
page.on('request', request => requests.push(request));
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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());
});
});
describe('Request.headers', function() {
it('should work', async({page, server}) => {
const response = await page.goto(server.EMPTY_PAGE);
if (CHROMIUM)
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expect(response.request().headers()['user-agent']).toContain('Chrome');
else if (FFOX)
expect(response.request().headers()['user-agent']).toContain('Firefox');
else if (WEBKIT)
expect(response.request().headers()['user-agent']).toContain('WebKit');
});
});
describe('Response.headers', function() {
it('should work', async({page, server}) => {
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');
});
});
describe('Request.postData', function() {
it('should work', async({page, server}) => {
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({page, server}) => {
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().postData()).toBe(undefined);
});
});
describe('Response.text', function() {
it('should work', async({page, server}) => {
const response = await page.goto(server.PREFIX + '/simple.json');
expect(await response.text()).toBe('{"foo": "bar"}\n');
});
it('should return uncompressed text', async({page, server}) => {
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({page, server}) => {
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({page, server}) => {
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.waitForEvent('response'),
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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!');
});
});
describe('Response.json', function() {
it('should work', async({page, server}) => {
const response = await page.goto(server.PREFIX + '/simple.json');
expect(await response.json()).toEqual({foo: 'bar'});
});
});
describe('Response.buffer', function() {
it('should work', async({page, server}) => {
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({page, server}) => {
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);
});
});
describe('Response.statusText', function() {
it('should work', async({page, server}) => {
server.setRoute('/cool', (req, res) => {
res.writeHead(200, 'cool!');
res.end();
});
const response = await page.goto(server.PREFIX + '/cool');
expect(response.statusText()).toBe('cool!');
});
});
describe('Network Events', function() {
it('Page.Events.Request', async({page, server}) => {
const requests = [];
page.on('request', request => requests.push(request));
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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({page, server}) => {
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const responses = [];
page.on('response', response => responses.push(response));
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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();
});
it.skip(FFOX)('Page.Events.RequestFailed', async({page, server}) => {
server.setRoute('/one-style.css', (req, res) => {
req.socket.write('deadbeef');
req.socket.end();
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});
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 (CHROMIUM) {
expect(failedRequests[0].failure().errorText).toBe('net::ERR_INVALID_HTTP_RESPONSE');
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} else if (WEBKIT) {
if (MAC)
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expect(failedRequests[0].failure().errorText).toBe('The network connection was lost.');
else if (WIN)
expect(failedRequests[0].failure().errorText).toBe('Unsupported protocol');
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else
expect(failedRequests[0].failure().errorText).toBe('Message Corrupt');
} else {
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expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
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}
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expect(failedRequests[0].frame()).toBeTruthy();
});
it('Page.Events.RequestFinished', async({page, server}) => {
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const requests = [];
page.on('requestfinished', request => requests.push(request));
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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({page, server}) => {
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const events = [];
page.on('request', request => events.push('request'));
page.on('response', response => events.push('response'));
page.on('requestfinished', request => events.push('requestfinished'));
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await page.goto(server.EMPTY_PAGE);
expect(events).toEqual(['request', 'response', 'requestfinished']);
});
it('should support redirects', async({page, server}) => {
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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()}`));
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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');
});
});
describe('Request.isNavigationRequest', () => {
it('should work', async({page, server}) => {
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);
});
it('should work when navigating to image', async({page, server}) => {
const requests = [];
page.on('request', request => requests.push(request));
await page.goto(server.PREFIX + '/pptr.png');
expect(requests[0].isNavigationRequest()).toBe(true);
});
});
describe('Page.setExtraHTTPHeaders', function() {
it('should work', async({page, server}) => {
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 work with extra headers from browser context', async({browser, server}) => {
const context = await browser.newContext();
await context.setExtraHTTPHeaders({
'foo': 'bar',
});
const page = await context.newPage();
const [request] = await Promise.all([
server.waitForRequest('/empty.html'),
page.goto(server.EMPTY_PAGE),
]);
await context.close();
expect(request.headers['foo']).toBe('bar');
});
it('should override extra headers from browser context', async({browser, server}) => {
const context = await browser.newContext({
extraHTTPHeaders: { 'fOo': 'bAr', 'baR': 'foO' },
});
const page = await context.newPage();
await page.setExtraHTTPHeaders({
'Foo': 'Bar'
});
const [request] = await Promise.all([
server.waitForRequest('/empty.html'),
page.goto(server.EMPTY_PAGE),
]);
await context.close();
expect(request.headers['foo']).toBe('Bar');
expect(request.headers['bar']).toBe('foO');
});
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it('should throw for non-string header values', async({page, server}) => {
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.');
});
});
};