text: /**
   * 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.
   */
  
  const utils = require('./utils');
  const expect = require('expect');
  const {getTestState, setupTestBrowserHooks, setupTestPageAndContextHooks} = require('./mocha-utils');
  
  describe('Frame specs', function() {
    setupTestBrowserHooks();
    setupTestPageAndContextHooks();
  
    describe('Frame.executionContext', function() {
      itFailsFirefox('should work', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.EMPTY_PAGE);
        await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
        expect(page.frames().length).toBe(2);
        const [frame1, frame2] = page.frames();
        const context1 = await frame1.executionContext();
        const context2 = await frame2.executionContext();
        expect(context1).toBeTruthy();
        expect(context2).toBeTruthy();
        expect(context1 !== context2).toBeTruthy();
        expect(context1.frame()).toBe(frame1);
        expect(context2.frame()).toBe(frame2);
  
        await Promise.all([
          context1.evaluate(() => window.a = 1),
          context2.evaluate(() => window.a = 2)
        ]);
        const [a1, a2] = await Promise.all([
          context1.evaluate(() => window.a),
          context2.evaluate(() => window.a)
        ]);
        expect(a1).toBe(1);
        expect(a2).toBe(2);
      });
    });
  
    describe('Frame.evaluateHandle', function() {
      it('should work', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.EMPTY_PAGE);
        const mainFrame = page.mainFrame();
        const windowHandle = await mainFrame.evaluateHandle(() => window);
        expect(windowHandle).toBeTruthy();
      });
    });
  
    describe('Frame.evaluate', function() {
      itFailsFirefox('should throw for detached frames', async() => {
        const { page, server } = getTestState();
  
        const frame1 = await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
        await utils.detachFrame(page, 'frame1');
        let error = null;
        await frame1.evaluate(() => 7 * 8).catch(e => error = e);
        expect(error.message).toContain('Execution Context is not available in detached frame');
      });
    });
  
    describe('Frame Management', function() {
      itFailsFirefox('should handle nested frames', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.PREFIX + '/frames/nested-frames.html');
        expect(utils.dumpFrames(page.mainFrame())).toEqual([
          'http://localhost:<PORT>/frames/nested-frames.html',
          '    http://localhost:<PORT>/frames/two-frames.html (2frames)',
          '        http://localhost:<PORT>/frames/frame.html (uno)',
          '        http://localhost:<PORT>/frames/frame.html (dos)',
          '    http://localhost:<PORT>/frames/frame.html (aframe)'
        ]);
      });
      itFailsFirefox('should send events when frames are manipulated dynamically', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.EMPTY_PAGE);
        // validate frameattached events
        const attachedFrames = [];
        page.on('frameattached', frame => attachedFrames.push(frame));
        await utils.attachFrame(page, 'frame1', './assets/frame.html');
        expect(attachedFrames.length).toBe(1);
        expect(attachedFrames[0].url()).toContain('/assets/frame.html');
  
        // validate framenavigated events
        const navigatedFrames = [];
        page.on('framenavigated', frame => navigatedFrames.push(frame));
        await utils.navigateFrame(page, 'frame1', './empty.html');
        expect(navigatedFrames.length).toBe(1);
        expect(navigatedFrames[0].url()).toBe(server.EMPTY_PAGE);
  
        // validate framedetached events
        const detachedFrames = [];
        page.on('framedetached', frame => detachedFrames.push(frame));
        await utils.detachFrame(page, 'frame1');
        expect(detachedFrames.length).toBe(1);
        expect(detachedFrames[0].isDetached()).toBe(true);
      });
      itFailsFirefox('should send "framenavigated" when navigating on anchor URLs', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.EMPTY_PAGE);
        await Promise.all([
          page.goto(server.EMPTY_PAGE + '#foo'),
          utils.waitEvent(page, 'framenavigated')
        ]);
        expect(page.url()).toBe(server.EMPTY_PAGE + '#foo');
      });
      it('should persist mainFrame on cross-process navigation', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.EMPTY_PAGE);
        const mainFrame = page.mainFrame();
        await page.goto(server.CROSS_PROCESS_PREFIX + '/empty.html');
        expect(page.mainFrame() === mainFrame).toBeTruthy();
      });
      it('should not send attach/detach events for main frame', async() => {
        const { page, server } = getTestState();
  
        let hasEvents = false;
        page.on('frameattached', frame => hasEvents = true);
        page.on('framedetached', frame => hasEvents = true);
        await page.goto(server.EMPTY_PAGE);
        expect(hasEvents).toBe(false);
      });
      itFailsFirefox('should detach child frames on navigation', async() => {
        const { page, server } = getTestState();
  
        let attachedFrames = [];
        let detachedFrames = [];
        let navigatedFrames = [];
        page.on('frameattached', frame => attachedFrames.push(frame));
        page.on('framedetached', frame => detachedFrames.push(frame));
        page.on('framenavigated', frame => navigatedFrames.push(frame));
        await page.goto(server.PREFIX + '/frames/nested-frames.html');
        expect(attachedFrames.length).toBe(4);
        expect(detachedFrames.length).toBe(0);
        expect(navigatedFrames.length).toBe(5);
  
        attachedFrames = [];
        detachedFrames = [];
        navigatedFrames = [];
        await page.goto(server.EMPTY_PAGE);
        expect(attachedFrames.length).toBe(0);
        expect(detachedFrames.length).toBe(4);
        expect(navigatedFrames.length).toBe(1);
      });
      itFailsFirefox('should support framesets', async() => {
        const { page, server } = getTestState();
  
        let attachedFrames = [];
        let detachedFrames = [];
        let navigatedFrames = [];
        page.on('frameattached', frame => attachedFrames.push(frame));
        page.on('framedetached', frame => detachedFrames.push(frame));
        page.on('framenavigated', frame => navigatedFrames.push(frame));
        await page.goto(server.PREFIX + '/frames/frameset.html');
        expect(attachedFrames.length).toBe(4);
        expect(detachedFrames.length).toBe(0);
        expect(navigatedFrames.length).toBe(5);
  
        attachedFrames = [];
        detachedFrames = [];
        navigatedFrames = [];
        await page.goto(server.EMPTY_PAGE);
        expect(attachedFrames.length).toBe(0);
        expect(detachedFrames.length).toBe(4);
        expect(navigatedFrames.length).toBe(1);
      });
      itFailsFirefox('should report frame from-inside shadow DOM', async() => {
        const { page, server } = getTestState();
  
        await page.goto(server.PREFIX + '/shadow.html');
        await page.evaluate(async url => {
          const frame = document.createElement('iframe');
          frame.src = url;
          document.body.shadowRoot.appendChild(frame);
          await new Promise(x => frame.onload = x);
        }, server.EMPTY_PAGE);
        expect(page.frames().length).toBe(2);
        expect(page.frames()[1].url()).toBe(server.EMPTY_PAGE);
      });
      itFailsFirefox('should report frame.name()', async() => {
        const { page, server } = getTestState();
  
        await utils.attachFrame(page, 'theFrameId', server.EMPTY_PAGE);
        await page.evaluate(url => {
          const frame = document.createElement('iframe');
          frame.name = 'theFrameName';
          frame.src = url;
          document.body.appendChild(frame);
          return new Promise(x => frame.onload = x);
        }, server.EMPTY_PAGE);
        expect(page.frames()[0].name()).toBe('');
        expect(page.frames()[1].name()).toBe('theFrameId');
        expect(page.frames()[2].name()).toBe('theFrameName');
      });
      itFailsFirefox('should report frame.parent()', async() => {
        const { page, server } = getTestState();
  
        await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
        await utils.attachFrame(page, 'frame2', server.EMPTY_PAGE);
        expect(page.frames()[0].parentFrame()).toBe(null);
        expect(page.frames()[1].parentFrame()).toBe(page.mainFrame());
        expect(page.frames()[2].parentFrame()).toBe(page.mainFrame());
      });
      itFailsFirefox('should report different frame instance when frame re-attaches', async() => {
        const { page, server } = getTestState();
  
        const frame1 = await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
        await page.evaluate(() => {
          window.frame = document.querySelector('#frame1');
          window.frame.remove();
        });
        expect(frame1.isDetached()).toBe(true);
        const [frame2] = await Promise.all([
          utils.waitEvent(page, 'frameattached'),
          page.evaluate(() => document.body.appendChild(window.frame)),
        ]);
        expect(frame2.isDetached()).toBe(false);
        expect(frame1).not.toBe(frame2);
      });
    });
  });
  