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

'use strict'

const assert = require('assert')
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))
    assert.throws(() => {
      w.setContentView(new WebContentsView(web))
    }, /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)
    })
  })
})