text: /**
   * Copyright 2018 Google Inc. All rights reserved.
   * Modifications copyright (c) Microsoft Corporation.
   *
   * 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.
   */
  
  /**
   * @type {PageTestSuite}
   */
  module.exports.describe = function({testRunner, expect, playwright, headless, FFOX, CHROMIUM, WEBKIT, MAC, WIN}) {
    const {describe, xdescribe, fdescribe} = testRunner;
    const {it, fit, xit, dit} = testRunner;
    const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
    const iPhone = playwright.devices['iPhone 6'];
    const iPhoneLandscape = playwright.devices['iPhone 6 landscape'];
  
    describe('BrowserContext({viewport})', function() {
      it('should get the proper viewport size', async({page, server}) => {
        expect(page.viewportSize()).toEqual({width: 1280, height: 720});
        expect(await page.evaluate(() => window.innerWidth)).toBe(1280);
        expect(await page.evaluate(() => window.innerHeight)).toBe(720);
      });
      it('should set the proper viewport size', async({page, server}) => {
        expect(page.viewportSize()).toEqual({width: 1280, height: 720});
        await page.setViewportSize({width: 123, height: 456});
        expect(page.viewportSize()).toEqual({width: 123, height: 456});
        expect(await page.evaluate(() => window.innerWidth)).toBe(123);
        expect(await page.evaluate(() => window.innerHeight)).toBe(456);
      });
      it('should support mobile emulation', async({newContext, server}) => {
        const context = await newContext({ viewport: iPhone.viewport });
        const page = await context.newPage();
        await page.goto(server.PREFIX + '/mobile.html');
        expect(await page.evaluate(() => window.innerWidth)).toBe(375);
        await page.setViewportSize({width: 400, height: 300});
        expect(await page.evaluate(() => window.innerWidth)).toBe(400);
      });
      it('should not have touch by default', async({page, server}) => {
        await page.goto(server.PREFIX + '/mobile.html');
        expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(false);
        await page.goto(server.PREFIX + '/detect-touch.html');
        expect(await page.evaluate(() => document.body.textContent.trim())).toBe('NO');
      });
      it('should support touch emulation', async({newContext, server}) => {
        const context = await newContext({ viewport: iPhone.viewport });
        const page = await context.newPage();
        await page.goto(server.PREFIX + '/mobile.html');
        expect(await page.evaluate(() => 'ontouchstart' in window)).toBe(true);
        expect(await page.evaluate(dispatchTouch)).toBe('Received touch');
  
        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({newContext, server}) => {
        const context = await newContext({ viewport: iPhone.viewport });
        const page = await context.newPage();
        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({newContext, server}) => {
        const context = await newContext({ viewport: { width: 800, height: 600, isMobile: true } });
        const page = await context.newPage();
        await page.goto(server.EMPTY_PAGE);
        await page.addScriptTag({url: server.PREFIX + '/modernizr.js'});
        expect(await page.evaluate(() => Modernizr.touchevents)).toBe(true);
      });
      it.skip(FFOX)('should support landscape emulation', async({newContext, server}) => {
        const context1 = await newContext({ viewport: iPhone.viewport });
        const page1 = await context1.newPage();
        await page1.goto(server.PREFIX + '/mobile.html');
        expect(await page1.evaluate(() => matchMedia('(orientation: landscape)').matches)).toBe(false);
        const context2 = await newContext({ viewport: iPhoneLandscape.viewport });
        const page2 = await context2.newPage();
        expect(await page2.evaluate(() => matchMedia('(orientation: landscape)').matches)).toBe(true);
      });
      it.skip(FFOX || WEBKIT)('should fire orientationchange event', async({newContext, server}) => {
        const context = await newContext({ viewport: { width: 300, height: 400, isMobile: true } });
        const page = await context.newPage();
        await page.goto(server.PREFIX + '/mobile.html');
        await page.evaluate(() => {
          window.counter = 0;
          window.addEventListener('orientationchange', () => console.log(++window.counter));
        });
  
        const event1 = page.waitForEvent('console');
        await page.setViewportSize({width: 400, height: 300});
        expect((await event1).text()).toBe('1');
  
        const event2 = page.waitForEvent('console');
        await page.setViewportSize({width: 300, height: 400});
        expect((await event2).text()).toBe('2');
      });
      it.skip(FFOX)('default mobile viewports to 980 width', async({newContext, server}) => {
        const context = await newContext({ viewport: {width: 320, height: 480, isMobile: true} });
        const page = await context.newPage();
        await page.goto(server.PREFIX + '/empty.html');
        expect(await page.evaluate(() => window.innerWidth)).toBe(980);
      });
      it.skip(FFOX)('respect meta viewport tag', async({newContext, server}) => {
        const context = await newContext({ viewport: {width: 320, height: 480, isMobile: true} });
        const page = await context.newPage();
        await page.goto(server.PREFIX + '/mobile.html');
        expect(await page.evaluate(() => window.innerWidth)).toBe(320);
      });
    });
  
    describe('Page.emulate', function() {
      it('should work', async({newPage, server}) => {
        const page = await newPage({ viewport: iPhone.viewport, userAgent: iPhone.userAgent });
        await page.goto(server.PREFIX + '/mobile.html');
        expect(await page.evaluate(() => window.innerWidth)).toBe(375);
        expect(await page.evaluate(() => navigator.userAgent)).toContain('iPhone');
      });
      it('should support clicking', async({newPage, server}) => {
        const page = await newPage({ viewport: iPhone.viewport, userAgent: iPhone.userAgent });
        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 type', 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.emulateMedia({ media: 'print' });
        expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(false);
        expect(await page.evaluate(() => matchMedia('print').matches)).toBe(true);
        await page.emulateMedia({});
        expect(await page.evaluate(() => matchMedia('screen').matches)).toBe(false);
        expect(await page.evaluate(() => matchMedia('print').matches)).toBe(true);
        await page.emulateMedia({ media: '' });
        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 type argument', async({page, server}) => {
        let error = null;
        await page.emulateMedia({ media: 'bad' }).catch(e => error = e);
        expect(error.message).toBe('Unsupported media: bad');
      });
    });
  
    describe('Page.emulateMedia colorScheme', function() {
      it('should work', async({page, server}) => {
        await page.emulateMedia({ colorScheme: '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.emulateMedia({ colorScheme: '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);
        if (!WEBKIT) {
          // WebKit will always provide the value.
          await page.emulateMedia({ colorScheme: 'no-preference' });
          expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(false);
          expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches)).toBe(false);
          expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches)).toBe(true);
        }
      });
      it('should throw in case of bad argument', async({page, server}) => {
        let error = null;
        await page.emulateMedia({ colorScheme: 'bad' }).catch(e => error = e);
        expect(error.message).toBe('Unsupported color scheme: bad');
      });
      it.skip(FFOX)('should work during navigation', async({page, server}) => {
        await page.emulateMedia({ colorScheme: 'light' });
        const navigated = page.goto(server.EMPTY_PAGE);
        for (let i = 0; i < 9; i++) {
          await Promise.all([
            page.emulateMedia({ colorScheme: ['dark', 'light'][i & 1] }),
            new Promise(f => setTimeout(f, 1)),
          ]);
        }
        await navigated;
        expect(await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches)).toBe(true);
      });
    });
  
    describe.skip(FFOX)('BrowserContext({timezoneId})', function() {
      it('should work', async ({ newPage }) => {
        const func = () => new Date(1479579154987).toString();
        {
          const page = await newPage({ timezoneId: 'America/Jamaica' });
          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 13:12:34 GMT-0500 (Eastern Standard Time)');
        }
        {
          const page = await newPage({ timezoneId: 'Pacific/Honolulu' });
          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 08:12:34 GMT-1000 (Hawaii-Aleutian Standard Time)');
        }
        {
          const page = await newPage({ timezoneId: 'America/Buenos_Aires' });
          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 15:12:34 GMT-0300 (Argentina Standard Time)');
        }
        {
          const page = await newPage({ timezoneId: 'Europe/Berlin' });
          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 19:12:34 GMT+0100 (Central European Standard Time)');
        }
      });
  
      it('should throw for invalid timezone IDs', async({newPage}) => {
        let error = null;
        await newPage({ timezoneId: 'Foo/Bar' }).catch(e => error = e);
        expect(error.message).toBe('Invalid timezone ID: Foo/Bar');
        await newPage({ timezoneId: 'Baz/Qux' }).catch(e => error = e);
        expect(error.message).toBe('Invalid timezone ID: Baz/Qux');
      });
    });
  
    describe.skip(CHROMIUM || FFOX)('BrowserContext({locale})', function() {
      it('should affect accept-language header', async({newPage, server}) => {
        const page = await newPage({ locale: 'fr-CH' });
        const [request] = await Promise.all([
          server.waitForRequest('/empty.html'),
          page.goto(server.EMPTY_PAGE),
        ]);
        expect(request.headers['accept-language'].substr(0, 5)).toBe('fr-CH');
      });
      it('should affect navigator.language', async({newPage, server}) => {
        const page = await newPage({ locale: 'fr-CH' });
        expect(await page.evaluate(() => navigator.language)).toBe('fr-CH');
      });
      it('should format number', async({newPage, server}) => {
        {
          const page = await newPage({ locale: 'en-US' });
          await page.goto(server.EMPTY_PAGE);
          expect(await page.evaluate(() => (1000000.50).toLocaleString())).toBe('1,000,000.5');
        }
        {
          const page = await newPage({ locale: 'fr-CH' });
          await page.goto(server.EMPTY_PAGE);
          expect(await page.evaluate(() => (1000000.50).toLocaleString().replace(/\s/g, ' '))).toBe('1 000 000,5');
        }
      });
      it('should format date', async({newPage, server}) => {
        {
          const page = await newPage({ locale: 'en-US', timezoneId: 'America/Los_Angeles' });
          await page.goto(server.EMPTY_PAGE);
          const formatted = 'Sat Nov 19 2016 10:12:34 GMT-0800 (Pacific Standard Time)';
          expect(await page.evaluate(() => new Date(1479579154987).toString())).toBe(formatted);
        }
        {
          const page = await newPage({ locale: 'de-DE', timezoneId: 'Europe/Berlin' });
          await page.goto(server.EMPTY_PAGE);
          expect(await page.evaluate(() => new Date(1479579154987).toString())).toBe(
              'Sat Nov 19 2016 19:12:34 GMT+0100 (Mitteleuropäische Normalzeit)');
        }
      });
    });
  
    describe('focus', function() {
      it.skip(!headless)('should think that it is focused by default', async({page}) => {
        expect(await page.evaluate('document.hasFocus()')).toBe(true);
      });
    });
  };
  