nhunzaker/example.test.js

## example.test.js
describe('Jest Electron Runner', function() {

  it('has access to the window', function() {
    expect(window).toEqual(global)
  })

  it('has access to the document', function() {
    expect(document).toEqual(global.document)
  })

})

## jest-electron-environment.js
'use strict'

const FakeTimers = require('jest-util').FakeTimers
const installCommonGlobals = require('jest-util').installCommonGlobals
const ModuleMocker = require('jest-mock')

class ElectronEnvironment {

  constructor(config) {
    const global = this.global = window

    installCommonGlobals(global, config.globals)

    this.moduleMocker = new ModuleMocker(global)
    this.fakeTimers = new FakeTimers(global, this.moduleMocker, config)
  }

  dispose() {
    if (this.fakeTimers) {
      this.fakeTimers.dispose()
    }

    this.fakeTimers = null
  }

  runScript(script) {
    return script.runInThisContext()
  }


}

module.exports = ElectronEnvironment

## main.js
'use strict'

const { app, BrowserWindow } = require('electron')
const qs = require('querystring')

const args = process.argv.slice(2)
const debug = args.indexOf('--debug') >= 0

function run () {
  let runner = new BrowserWindow({
    title: "Jest",
    show: debug,
    contextIsolation: true
  })

  require('jest')

  let options = {
    moduleDirectories: ["<rootDir>/tests"],
    env: './src/jest-environment-electron'
  }

  runner.loadURL(`file://${__dirname}/runner.html?` + qs.stringify(options))

  if (debug) {
    runner.toggleDevTools()
  }

  runner.on('close', function () {
    runner = null
  })
}

app.on('ready', run)

app.on('window-all-closed', function () {
  app.quit()
})

## package.json
{
  "name": "jest-electron",
  "version": "1.0.0",
  "description": "Executing jest with Electron",
  "main": "main.js",
  "scripts": {
    "test": "electron ."
  },
  "keywords": ["jest", "electron"],
  "author": "Nate Hunzaker <nate.hunzaker@gmail.com",
  "license": "MIT",
  "dependencies": {
    "jest": "^17.0.3",
    "electron": "^1.4.1"
  }
}

## runner.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Jest</title>
  </head>
  <body>
    <h2>Executing tests...</h2>
    <p>Please reference the console for output.</p>

    <script>
      var jest = require('jest')
      var qs = require('querystring')
      var options = qs.parse(window.location.search)

      jest.runCLI(options, __dirname, (content) => {
        window.close()
      })
    </script>
  </body>
</html>
	describe('Jest Electron Runner', function() {

	it('has access to the window', function() {
	expect(window).toEqual(global)
	})

	it('has access to the document', function() {
	expect(document).toEqual(global.document)
	})

	})
	'use strict'

	const FakeTimers = require('jest-util').FakeTimers
	const installCommonGlobals = require('jest-util').installCommonGlobals
	const ModuleMocker = require('jest-mock')

	class ElectronEnvironment {

	constructor(config) {
	const global = this.global = window

	installCommonGlobals(global, config.globals)

	this.moduleMocker = new ModuleMocker(global)
	this.fakeTimers = new FakeTimers(global, this.moduleMocker, config)
	}

	dispose() {
	if (this.fakeTimers) {
	this.fakeTimers.dispose()
	}

	this.fakeTimers = null
	}

	runScript(script) {
	return script.runInThisContext()
	}


	}

	module.exports = ElectronEnvironment
	'use strict'

	const { app, BrowserWindow } = require('electron')
	const qs = require('querystring')

	const args = process.argv.slice(2)
	const debug = args.indexOf('--debug') >= 0

	function run () {
	let runner = new BrowserWindow({
	title: "Jest",
	show: debug,
	contextIsolation: true
	})

	require('jest')

	let options = {
	moduleDirectories: ["<rootDir>/tests"],
	env: './src/jest-environment-electron'
	}

	runner.loadURL(`file://${__dirname}/runner.html?` + qs.stringify(options))

	if (debug) {
	runner.toggleDevTools()
	}

	runner.on('close', function () {
	runner = null
	})
	}

	app.on('ready', run)

	app.on('window-all-closed', function () {
	app.quit()
	})
	{
	"name": "jest-electron",
	"version": "1.0.0",
	"description": "Executing jest with Electron",
	"main": "main.js",
	"scripts": {
	"test": "electron ."
	},
	"keywords": ["jest", "electron"],
	"author": "Nate Hunzaker <nate.hunzaker@gmail.com",
	"license": "MIT",
	"dependencies": {
	"jest": "^17.0.3",
	"electron": "^1.4.1"
	}
	}
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Jest</title>
	</head>
	<body>
	<h2>Executing tests...</h2>
	<p>Please reference the console for output.</p>

	<script>
	var jest = require('jest')
	var qs = require('querystring')
	var options = qs.parse(window.location.search)

	jest.runCLI(options, __dirname, (content) => {
	window.close()
	})
	</script>
	</body>
	</html>