electron/spec-main/extensions-spec.ts

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import { expect } from 'chai'
import { session, BrowserWindow, ipcMain } from 'electron'
import { closeAllWindows } from './window-helpers'
import * as http from 'http'
import { AddressInfo } from 'net'
import * as path from 'path'
import { ifdescribe } from './spec-helpers'
import { emittedOnce } from './events-helpers'
const fixtures = path.join(__dirname, 'fixtures')
ifdescribe(process.electronBinding('features').isExtensionsEnabled())('chrome extensions', () => {
// NB. extensions are only allowed on http://, https:// and ftp:// (!) urls by default.
let server: http.Server
let url: string
before(async () => {
server = http.createServer((req, res) => res.end())
await new Promise(resolve => server.listen(0, '127.0.0.1', () => {
url = `http://127.0.0.1:${(server.address() as AddressInfo).port}`
resolve()
}))
})
after(() => {
server.close()
})
afterEach(closeAllWindows)
it('loads an extension', async () => {
// NB. we have to use a persist: session (i.e. non-OTR) because the
// extension registry is redirected to the main session. so installing an
// extension in an in-memory session results in it being installed in the
// default session.
const customSession = session.fromPartition(`persist:${require('uuid').v4()}`);
(customSession as any).loadChromeExtension(path.join(fixtures, 'extensions', 'red-bg'))
const w = new BrowserWindow({show: false, webPreferences: {session: customSession}})
await w.loadURL(url)
const bg = await w.webContents.executeJavaScript('document.documentElement.style.backgroundColor')
expect(bg).to.equal('red')
})
it('confines an extension to the session it was loaded in', async () => {
const customSession = session.fromPartition(`persist:${require('uuid').v4()}`);
(customSession as any).loadChromeExtension(path.join(fixtures, 'extensions', 'red-bg'))
const w = new BrowserWindow({show: false}) // not in the session
await w.loadURL(url)
const bg = await w.webContents.executeJavaScript('document.documentElement.style.backgroundColor')
expect(bg).to.equal('')
})
describe('chrome.runtime', () => {
let content: any
before(async () => {
const customSession = session.fromPartition(`persist:${require('uuid').v4()}`);
(customSession as any).loadChromeExtension(path.join(fixtures, 'extensions', 'chrome-runtime'))
const w = new BrowserWindow({show: false, webPreferences: { session: customSession }})
try {
await w.loadURL(url)
content = JSON.parse(await w.webContents.executeJavaScript('document.documentElement.textContent'))
expect(content).to.be.an('object')
} finally {
w.destroy()
}
})
it('getManifest()', () => {
expect(content.manifest).to.be.an('object').with.property('name', 'chrome-runtime')
})
it('id', () => {
expect(content.id).to.be.a('string').with.lengthOf(32)
})
it('getURL()', () => {
expect(content.url).to.be.a('string').and.match(/^chrome-extension:\/\/.*main.js$/)
})
})
describe('chrome.storage', () => {
it('stores and retrieves a key', async () => {
const customSession = session.fromPartition(`persist:${require('uuid').v4()}`);
(customSession as any).loadChromeExtension(path.join(fixtures, 'extensions', 'chrome-storage'))
const w = new BrowserWindow({show: false, webPreferences: { session: customSession, nodeIntegration: true }})
try {
const p = emittedOnce(ipcMain, 'storage-success')
await w.loadURL(url)
const [, v] = await p
expect(v).to.equal('value')
} finally {
w.destroy()
}
})
})
})