puppeteer/test/test.js

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/**
* 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.
*/
let fs = require('fs');
let path = require('path');
let Browser = require('../lib/Browser');
let SimpleServer = require('./SimpleServer');
let GoldenUtils = require('./golden-utils');
let PORT = 8907;
let STATIC_PREFIX = 'http://localhost:' + PORT;
let EMPTY_PAGE = STATIC_PREFIX + '/empty.html';
if (process.env.DEBUG_TEST)
jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000 * 1000 * 1000;
else
jasmine.DEFAULT_TIMEOUT_INTERVAL = 10 * 1000;
describe('Puppeteer', function() {
let browser;
let server;
let page;
beforeAll(SX(async function() {
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browser = new Browser({args: ['--no-sandbox']});
server = await SimpleServer.create(path.join(__dirname, 'assets'), PORT);
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GoldenUtils.removeOutputDir();
}));
afterAll(SX(async function() {
await server.stop();
browser.close();
}));
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beforeEach(SX(async function() {
page = await browser.newPage();
server.reset();
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GoldenUtils.addMatchers(jasmine);
}));
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afterEach(function() {
page.close();
});
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describe('Page.evaluate', function() {
it('should work', SX(async function() {
let result = await page.evaluate(() => 7 * 3);
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expect(result).toBe(21);
}));
it('should await promise', SX(async function() {
let result = await page.evaluate(() => Promise.resolve(8 * 7));
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expect(result).toBe(56);
}));
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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() {
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return await callController(9, 3);
});
expect(result).toBe(27);
}));
it('should reject promise with exception', SX(async function() {
let error = null;
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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);
}));
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});
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);
}));
});
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');
}));
});
describe('Frame.waitFor', 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.waitFor('*').then(() => added = true);
expect(added).toBe(true);
added = false;
await frame.evaluate(addElement, 'div');
await frame.waitFor('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.waitFor('div').then(() => added = true);
// run nop function..
await frame.evaluate(() => 42);
// .. to be sure that waitFor 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('Page.waitFor 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.waitFor('div').then(() => added = true);
await otherFrame.evaluate(addElement, 'div');
expect(added).toBe(false);
await page.evaluate(addElement, 'div');
expect(added).toBe(true);
}));
});
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it('Page Events: ConsoleMessage', SX(async function() {
let msgs = [];
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page.on('consolemessage', msg => msgs.push(msg));
await page.evaluate(() => console.log('Message!'));
expect(msgs).toEqual(['Message!']);
}));
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describe('Page.navigate', function() {
it('should fail when navigating to bad url', SX(async function() {
let success = await page.navigate('asdfasdf');
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expect(success).toBe(false);
}));
it('should succeed when navigating to good url', SX(async function() {
let success = await page.navigate(EMPTY_PAGE);
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expect(success).toBe(true);
}));
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(STATIC_PREFIX + '/networkidle.html', {
waitFor: '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`);
}
let success = await navigationPromise;
// Expect navigation to succeed.
expect(success).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(STATIC_PREFIX + '/websocket.html', {
waitFor: '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`);
}
let success = await navigationPromise;
// Expect navigation to succeed.
expect(success).toBe(true);
}));
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});
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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() {
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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;
});
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await page.navigate(EMPTY_PAGE);
let result = await page.evaluate(async function() {
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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() {
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return await callController(3, 5);
});
expect(result).toBe(15);
}));
});
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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);
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request.continue();
});
let success = await page.navigate(EMPTY_PAGE);
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expect(success).toBe(true);
}));
it('should show custom HTTP headers', SX(async function() {
await page.setHTTPHeaders({
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foo: 'bar'
});
page.setRequestInterceptor(request => {
expect(request.headers.get('foo')).toBe('bar');
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request.continue();
});
let success = await page.navigate(EMPTY_PAGE);
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expect(success).toBe(true);
}));
it('should be abortable', SX(async function() {
page.setRequestInterceptor(request => {
if (request.url.endsWith('.css'))
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request.abort();
else
request.continue();
});
let failedRequests = 0;
page.on('requestfailed', event => ++failedRequests);
let success = await page.navigate(STATIC_PREFIX + '/one-style.html');
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expect(success).toBe(true);
expect(failedRequests).toBe(1);
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}));
it('should amend HTTP headers', SX(async function() {
await page.navigate(EMPTY_PAGE);
page.setRequestInterceptor(request => {
request.headers.set('foo', 'bar');
request.continue();
});
let serverRequest = server.waitForRequest('/sleep.zzz');
page.evaluate(() => {
fetch('/sleep.zzz');
});
let request = await serverRequest;
expect(request.headers['foo']).toBe('bar');
}));
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});
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describe('Page.Events.Dialog', function() {
it('should fire', function(done) {
page.on('dialog', dialog => {
expect(dialog.type).toBe('alert');
expect(dialog.message()).toBe('yo');
done();
});
page.evaluate(() => alert('yo'));
});
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// TODO Enable this when crbug.com/718235 is fixed.
xit('should allow accepting prompts', SX(async function(done) {
page.on('dialog', dialog => {
expect(dialog.type).toBe('prompt');
expect(dialog.message()).toBe('question?');
dialog.accept('answer!');
});
let result = await page.evaluate(() => prompt('question?'));
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expect(result).toBe('answer!');
}));
});
describe('Page.Events.PageError', function() {
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it('should fire', function(done) {
page.on('pageerror', error => {
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expect(error.message).toContain('Fancy');
done();
});
page.navigate(STATIC_PREFIX + '/error.html');
});
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});
describe('Page.Events.Request', function() {
it('should fire', SX(async function(done) {
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');
}));
});
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describe('Page.screenshot', function() {
it('should work', SX(async function() {
await page.setViewportSize({width: 500, height: 500});
await page.navigate(STATIC_PREFIX + '/grid.html');
let screenshot = await page.screenshot();
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expect(screenshot).toBeGolden('screenshot-sanity.png');
}));
it('should clip rect', SX(async function() {
await page.setViewportSize({width: 500, height: 500});
await page.navigate(STATIC_PREFIX + '/grid.html');
let screenshot = await page.screenshot({
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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.setViewportSize({width: 500, height: 500});
await page.navigate(STATIC_PREFIX + '/grid.html');
let screenshot = await page.screenshot({
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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.setViewportSize({width: 500, height: 500});
await page.navigate(STATIC_PREFIX + '/grid.html');
let promises = [];
for (let i = 0; i < 3; ++i) {
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promises.push(page.screenshot({
clip: {
x: 50 * i,
y: 0,
width: 50,
height: 50
}
}));
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}
let screenshot = await promises[1];
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expect(screenshot).toBeGolden('screenshot-parallel-calls.png');
}));
it('should take fullPage screenshots', SX(async function() {
await page.setViewportSize({width: 500, height: 500});
await page.navigate(STATIC_PREFIX + '/grid.html');
let screenshot = await page.screenshot({
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fullPage: true
});
expect(screenshot).toBeGolden('screenshot-grid-fullpage.png');
}));
});
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describe('Frame Management', function() {
let FrameUtils = require('./frame-utils');
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it('should handle nested frames', SX(async function() {
await page.navigate(STATIC_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 = [];
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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');
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// validate framenavigated events
let navigatedFrames = [];
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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');
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// validate framedetached events
let detachedFrames = [];
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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();
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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;
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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 = [];
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page.on('frameattached', frame => attachedFrames.push(frame));
page.on('framedetached', frame => detachedFrames.push(frame));
page.on('framenavigated', frame => navigatedFrames.push(frame));
await page.navigate(STATIC_PREFIX + '/frames/nested-frames.html');
expect(attachedFrames.length).toBe(4);
expect(detachedFrames.length).toBe(0);
expect(navigatedFrames.length).toBe(5);
attachedFrames = [];
detachedFrames = [];
navigatedFrames = [];
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await page.navigate(EMPTY_PAGE);
expect(attachedFrames.length).toBe(0);
expect(detachedFrames.length).toBe(4);
expect(navigatedFrames.length).toBe(1);
}));
});
describe('input', function() {
it('should click the button', SX(async function() {
await page.navigate(STATIC_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(STATIC_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(STATIC_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(STATIC_PREFIX + '/input/button.html');
await page.click('button');
await page.navigate(STATIC_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(STATIC_PREFIX + '/input/fileupload.html');
await page.uploadFile('input', __dirname + '/assets/file-to-upload.txt');
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');
}));
});
describe('Page.setUserAgent', function() {
it('should work', SX(async function() {
expect(page.userAgent()).toContain('Mozilla');
page.setUserAgent('foobar');
page.navigate(EMPTY_PAGE);
let request = await server.waitForRequest('/empty.html');
expect(request.headers['user-agent']).toBe('foobar');
}));
});
describe('Page.setHTTPHeaders', function() {
it('should work', SX(async function() {
expect(page.httpHeaders()).toEqual({});
page.setHTTPHeaders({'foo': 'bar'});
expect(page.httpHeaders()).toEqual({'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('Request implements Body', function() {
it('should work', 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.bodyUsed).toBe(false);
expect(await request.text()).toBe('{"foo":"bar"}');
expect(await request.json()).toEqual({foo: 'bar'});
expect(request.bodyUsed).toBe(true);
}));
});
describe('Response implements Body', function() {
it('should work', SX(async function() {
let response = null;
page.on('response', r => response = r);
await page.navigate(STATIC_PREFIX + '/simple.json');
expect(response).toBeTruthy();
expect(response.bodyUsed).toBe(false);
expect(await response.text()).toBe('{"foo": "bar"}\n');
expect(await response.json()).toEqual({foo: 'bar'});
expect(response.bodyUsed).toBe(true);
}));
});
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.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.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(STATIC_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 = STATIC_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(await page.url()).toBe('about:blank');
await page.navigate(EMPTY_PAGE);
expect(await page.url()).toBe(EMPTY_PAGE);
}));
});
describe('Page.viewportSize', function() {
it('should get the proper viewport size', SX(async function() {
expect(page.viewportSize()).toEqual({width: 400, height: 300});
await page.setViewportSize({width: 123, height: 456});
expect(page.viewportSize()).toEqual({width: 123, height: 456});
}));
});
describe('Page.evaluateOnInitialized', function() {
it('should evaluate before anything else on the page', SX(async function() {
await page.evaluateOnInitialized(function(){
window.injected = 123;
});
await page.navigate(STATIC_PREFIX + '/tamperable.html');
expect(await page.evaluate(() => window.result)).toBe(123);
}));
});
describe('Page.printToPDF', function() {
let outputFile = __dirname + '/assets/output.pdf';
afterEach(function() {
fs.unlinkSync(outputFile);
});
it('should print to pdf', SX(async function() {
await page.navigate(STATIC_PREFIX + '/grid.html');
await page.printToPDF(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(STATIC_PREFIX + '/input/button.html');
expect(await page.title()).toBe('Button test');
}));
});
});
// Since Jasmine doesn't like async functions, they should be wrapped
// in a SX function.
function SX(fun) {
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return done => Promise.resolve(fun()).then(done).catch(done.fail);
}