electron/spec/api-web-contents-view-spec.js

'use strict';

const chai = require('chai');
const ChildProcess = require('child_process');
const dirtyChai = require('dirty-chai');
const path = require('path');
const { emittedOnce } = require('./events-helpers');
const { closeWindow } = require('./window-helpers');

const { remote } = require('electron');
const { webContents, TopLevelWindow, WebContentsView } = remote;

const { expect } = chai;
chai.use(dirtyChai);

describe('WebContentsView', () => {
  let w = null;
  afterEach(() => closeWindow(w).then(() => { w = null; }));

  it('can be used as content view', () => {
    const web = webContents.create({});
    w = new TopLevelWindow({ show: false });
    w.setContentView(new WebContentsView(web));
  });

  it('prevents adding same WebContents', () => {
    const web = webContents.create({});
    w = new TopLevelWindow({ show: false });
    w.setContentView(new WebContentsView(web));
    expect(() => {
      w.setContentView(new WebContentsView(web));
    }).to.throw('The WebContents has already been added to a View');
  });

  describe('new WebContentsView()', () => {
    it('does not crash on exit', async () => {
      const appPath = path.join(__dirname, 'fixtures', 'api', 'leak-exit-webcontentsview.js');
      const electronPath = remote.getGlobal('process').execPath;
      const appProcess = ChildProcess.spawn(electronPath, [appPath]);
      const [code] = await emittedOnce(appProcess, 'close');
      expect(code).to.equal(0);
    });
  });
});