17cd8703f9
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.
253 lines
11 KiB
JavaScript
253 lines
11 KiB
JavaScript
/**
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* Copyright 2018 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const expect = require('expect');
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const {getTestState,setupTestBrowserHooks, setupTestPageAndContextHooks} = require('./mocha-utils');
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describe('Emulation', () => {
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setupTestBrowserHooks();
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setupTestPageAndContextHooks();
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let iPhone;
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let iPhoneLandscape;
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before(() => {
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const {puppeteer} = getTestState();
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iPhone = puppeteer.devices['iPhone 6'];
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iPhoneLandscape = puppeteer.devices['iPhone 6 landscape'];
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});
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describe('Page.viewport', function() {
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it('should get the proper viewport size', async() => {
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const { page } = getTestState();
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expect(page.viewport()).toEqual({width: 800, height: 600});
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await page.setViewport({width: 123, height: 456});
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expect(page.viewport()).toEqual({width: 123, height: 456});
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});
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it('should support mobile emulation', async() => {
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const { page, server } = getTestState();
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await page.goto(server.PREFIX + '/mobile.html');
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expect(await page.evaluate(() => window.innerWidth)).toBe(800);
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await page.setViewport(iPhone.viewport);
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expect(await page.evaluate(() => window.innerWidth)).toBe(375);
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await page.setViewport({width: 400, height: 300});
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expect(await page.evaluate(() => window.innerWidth)).toBe(400);
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});
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itFailsFirefox('should support touch emulation', async() => {
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const { page, server } = getTestState();
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await page.goto(server.PREFIX + '/mobile.html');
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expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(false);
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await page.setViewport(iPhone.viewport);
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expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(true);
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expect(await page.evaluate(dispatchTouch)).toBe('Received touch');
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await page.setViewport({width: 100, height: 100});
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expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(false);
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function dispatchTouch() {
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let fulfill;
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const promise = new Promise(x => fulfill = x);
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window.ontouchstart = function(e) {
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fulfill('Received touch');
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};
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window.dispatchEvent(new Event('touchstart'));
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fulfill('Did not receive touch');
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return promise;
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}
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});
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itFailsFirefox('should be detectable by Modernizr', async() => {
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const { page, server } = getTestState();
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await page.goto(server.PREFIX + '/detect-touch.html');
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expect(await page.evaluate(() => document.body.textContent.trim())).toBe('NO');
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await page.setViewport(iPhone.viewport);
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await page.goto(server.PREFIX + '/detect-touch.html');
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expect(await page.evaluate(() => document.body.textContent.trim())).toBe('YES');
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});
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itFailsFirefox('should detect touch when applying viewport with touches', async() => {
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const { page, server } = getTestState();
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await page.setViewport({ width: 800, height: 600, hasTouch: true });
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await page.addScriptTag({url: server.PREFIX + '/modernizr.js'});
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expect(await page.evaluate(() => Modernizr.touchevents)).toBe(true);
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});
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itFailsFirefox('should support landscape emulation', async() => {
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const { page, server } = getTestState();
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await page.goto(server.PREFIX + '/mobile.html');
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expect(await page.evaluate(() => screen.orientation.type)).toBe('portrait-primary');
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await page.setViewport(iPhoneLandscape.viewport);
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expect(await page.evaluate(() => screen.orientation.type)).toBe('landscape-primary');
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await page.setViewport({width: 100, height: 100});
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expect(await page.evaluate(() => screen.orientation.type)).toBe('portrait-primary');
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});
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});
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describe('Page.emulate', function() {
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it('should work', async() => {
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const { page, server } = getTestState();
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await page.goto(server.PREFIX + '/mobile.html');
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await page.emulate(iPhone);
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expect(await page.evaluate(() => window.innerWidth)).toBe(375);
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expect(await page.evaluate(() => navigator.userAgent)).toContain('iPhone');
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});
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it('should support clicking', async() => {
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const { page, server } = getTestState();
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await page.emulate(iPhone);
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await page.goto(server.PREFIX + '/input/button.html');
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const button = await page.$('button');
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await page.evaluate(button => button.style.marginTop = '200px', button);
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await button.click();
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expect(await page.evaluate(() => result)).toBe('Clicked');
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});
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});
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describe('Page.emulateMedia [deprecated]', function() {
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/* emulateMedia is deprecated in favour of emulateMediaType but we
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* don't want to remove it from Puppeteer just yet. We can't check
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* that emulateMedia === emulateMediaType because when running tests
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* with COVERAGE=1 the methods get rewritten. So instead we
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* duplicate the tests for emulateMediaType and ensure they pass
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* when calling the deprecated emulateMedia method.
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*
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* If you update these tests, you should update emulateMediaType's
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* tests, and vice-versa.
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*/
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itFailsFirefox('should work', async() => {
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const { page } = getTestState();
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expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('print').matches)).toBe(false);
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await page.emulateMedia('print');
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expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(false);
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expect(await page.evaluate(() => matchMedia('print').matches)).toBe(true);
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await page.emulateMedia(null);
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expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('print').matches)).toBe(false);
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});
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it('should throw in case of bad argument', async() => {
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const { page } = getTestState();
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let error = null;
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await page.emulateMedia('bad').catch(e => error = e);
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expect(error.message).toBe('Unsupported media type: bad');
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});
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});
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describe('Page.emulateMediaType', function() {
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/* NOTE! Updating these tests? Update the emulateMedia tests above
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* too (and see the big comment for why we have these duplicated).
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*/
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itFailsFirefox('should work', async() => {
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const { page } = getTestState();
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expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('print').matches)).toBe(false);
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await page.emulateMediaType('print');
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expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(false);
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expect(await page.evaluate(() => matchMedia('print').matches)).toBe(true);
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await page.emulateMediaType(null);
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expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('print').matches)).toBe(false);
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});
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it('should throw in case of bad argument', async() => {
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const { page } = getTestState();
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let error = null;
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await page.emulateMediaType('bad').catch(e => error = e);
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expect(error.message).toBe('Unsupported media type: bad');
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});
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});
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describe('Page.emulateMediaFeatures', function() {
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itFailsFirefox('should work', async() => {
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const { page } = getTestState();
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await page.emulateMediaFeatures([
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{ name: 'prefers-reduced-motion', value: 'reduce' },
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]);
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expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: reduce)').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: no-preference)').matches)).toBe(false);
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await page.emulateMediaFeatures([
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{ name: 'prefers-color-scheme', value: 'light' },
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]);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(false);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(false);
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await page.emulateMediaFeatures([
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{ name: 'prefers-color-scheme', value: 'dark' },
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]);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(false);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(false);
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await page.emulateMediaFeatures([
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{ name: 'prefers-reduced-motion', value: 'reduce' },
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{ name: 'prefers-color-scheme', value: 'light' },
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]);
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expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: reduce)').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('(prefers-reduced-motion: no-preference)').matches)).toBe(false);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(true);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(false);
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expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(false);
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});
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it('should throw in case of bad argument', async() => {
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const { page } = getTestState();
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let error = null;
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await page.emulateMediaFeatures([{ name: 'bad', value: '' }]).catch(e => error = e);
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expect(error.message).toBe('Unsupported media feature: bad');
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});
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});
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describeFailsFirefox('Page.emulateTimezone', function() {
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it('should work', async() => {
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const { page } = getTestState();
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page.evaluate(() => {
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globalThis.date = new Date(1479579154987);
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});
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await page.emulateTimezone('America/Jamaica');
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expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 13:12:34 GMT-0500 (Eastern Standard Time)');
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await page.emulateTimezone('Pacific/Honolulu');
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expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 08:12:34 GMT-1000 (Hawaii-Aleutian Standard Time)');
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await page.emulateTimezone('America/Buenos_Aires');
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expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 15:12:34 GMT-0300 (Argentina Standard Time)');
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await page.emulateTimezone('Europe/Berlin');
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expect(await page.evaluate(() => date.toString())).toBe('Sat Nov 19 2016 19:12:34 GMT+0100 (Central European Standard Time)');
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});
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it('should throw for invalid timezone IDs', async() => {
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const { page } = getTestState();
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let error = null;
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await page.emulateTimezone('Foo/Bar').catch(e => error = e);
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expect(error.message).toBe('Invalid timezone ID: Foo/Bar');
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await page.emulateTimezone('Baz/Qux').catch(e => error = e);
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expect(error.message).toBe('Invalid timezone ID: Baz/Qux');
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});
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});
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});
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