/
emulation.spec.js
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/
emulation.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.
*/
module.exports.addTests = function({testRunner, expect, puppeteer}) {
const {describe, xdescribe, fdescribe, describe_fails_ffox} = testRunner;
const {it, fit, xit, it_fails_ffox} = testRunner;
const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
const iPhone = puppeteer.devices['iPhone 6'];
const iPhoneLandscape = puppeteer.devices['iPhone 6 landscape'];
describe('Page.viewport', function() {
it('should get the proper viewport size', async({page, server}) => {
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', async({page, server}) => {
await page.goto(server.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', async({page, server}) => {
await page.goto(server.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);
expect(await page.evaluate(dispatchTouch)).toBe('Received touch');
await page.setViewport({width: 100, height: 100});
expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(false);
function dispatchTouch() {
let fulfill;
const promise = new Promise(x => fulfill = x);
window.ontouchstart = function(e) {
fulfill('Received touch');
};
window.dispatchEvent(new Event('touchstart'));
fulfill('Did not receive touch');
return promise;
}
});
it('should be detectable by Modernizr', async({page, server}) => {
await page.goto(server.PREFIX + '/detect-touch.html');
expect(await page.evaluate(() => document.body.textContent.trim())).toBe('NO');
await page.setViewport(iPhone.viewport);
await page.goto(server.PREFIX + '/detect-touch.html');
expect(await page.evaluate(() => document.body.textContent.trim())).toBe('YES');
});
it('should detect touch when applying viewport with touches', async({page, server}) => {
await page.setViewport({ width: 800, height: 600, hasTouch: true });
await page.addScriptTag({url: server.PREFIX + '/modernizr.js'});
expect(await page.evaluate(() => Modernizr.touchevents)).toBe(true);
});
it_fails_ffox('should support landscape emulation', async({page, server}) => {
await page.goto(server.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.emulate', function() {
it('should work', async({page, server}) => {
await page.goto(server.PREFIX + '/mobile.html');
await page.emulate(iPhone);
expect(await page.evaluate(() => window.innerWidth)).toBe(375);
expect(await page.evaluate(() => navigator.userAgent)).toContain('iPhone');
});
it('should support clicking', async({page, server}) => {
await page.emulate(iPhone);
await page.goto(server.PREFIX + '/input/button.html');
const button = await page.$('button');
await page.evaluate(button => button.style.marginTop = '200px', button);
await button.click();
expect(await page.evaluate(() => result)).toBe('Clicked');
});
});
describe('Page.emulateMedia', function() {
it('should be an alias for Page.emulateMediaType', async({page, server}) => {
expect(page.emulateMedia).toEqual(page.emulateMediaType);
});
});
describe('Page.emulateMediaType', function() {
it('should work', async({page, server}) => {
expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('print').matches)).toBe(false);
await page.emulateMediaType('print');
expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(false);
expect(await page.evaluate(() => matchMedia('print').matches)).toBe(true);
await page.emulateMediaType(null);
expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('print').matches)).toBe(false);
});
it('should throw in case of bad argument', async({page, server}) => {
let error = null;
await page.emulateMediaType('bad').catch(e => error = e);
expect(error.message).toBe('Unsupported media type: bad');
});
});
describe_fails_ffox('Page.emulateMediaFeatures', function() {
it('should work', async({page, server}) => {
await page.emulateMediaFeatures([
{ name: 'prefers-reduced-motion', value: 'reduce' },
]);
expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: reduce)').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: no-preference)').matches)).toBe(false);
await page.emulateMediaFeatures([
{ name: 'prefers-color-scheme', value: 'light' },
]);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(false);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(false);
await page.emulateMediaFeatures([
{ name: 'prefers-color-scheme', value: 'dark' },
]);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(false);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(false);
await page.emulateMediaFeatures([
{ name: 'prefers-reduced-motion', value: 'reduce' },
{ name: 'prefers-color-scheme', value: 'light' },
]);
expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: reduce)').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: no-preference)').matches)).toBe(false);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(true);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(false);
expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(false);
});
it('should throw in case of bad argument', async({page, server}) => {
let error = null;
await page.emulateMediaFeatures([{ name: 'bad', value: '' }]).catch(e => error = e);
expect(error.message).toBe('Unsupported media feature: bad');
});
});
describe_fails_ffox('Page.emulateTimezone', function() {
it('should work', async({page, server}) => {
page.evaluate(() => {
globalThis.date = new Date(1479579154987);
});
await page.emulateTimezone('America/Jamaica');
expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 13:12:34 GMT-0500 (Eastern Standard Time)');
await page.emulateTimezone('Pacific/Honolulu');
expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 08:12:34 GMT-1000 (Hawaii-Aleutian Standard Time)');
await page.emulateTimezone('America/Buenos_Aires');
expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 15:12:34 GMT-0300 (Argentina Standard Time)');
await page.emulateTimezone('Europe/Berlin');
expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 19:12:34 GMT+0100 (Central European Standard Time)');
});
it('should throw for invalid timezone IDs', async({page, server}) => {
let error = null;
await page.emulateTimezone('Foo/Bar').catch(e => error = e);
expect(error.message).toBe('Invalid timezone ID: Foo/Bar');
await page.emulateTimezone('Baz/Qux').catch(e => error = e);
expect(error.message).toBe('Invalid timezone ID: Baz/Qux');
});
});
};