How to test an Electron app with selenium webdriver - selenium

Question

I have read the documentation and I have followed the tutorial step by step and I only have managed to run the app.
Documentation: http://electron.atom.io/docs/tutorial/using-selenium-and-webdriver/
The connection with chromedriver I cannot make it work, when I launch the test and try click a simple button I get this:
Error: ChromeDriver did not start within 5000ms at Error (native)
at node_modules/spectron/lib/chrome-driver.js:58:25 at
Request._callback (node_modules/spectron/lib/chrome-driver.js:116:45)
at Request.self.callback
(node_modules/spectron/node_modules/request/request.js:200:22) at
Request.
(node_modules/spectron/node_modules/request/request.js:1067:10) at
IncomingMessage.
(node_modules/spectron/node_modules/request/request.js:988:12) at
endReadableNT (_stream_readable.js:913:12) at _combinedTickCallback
(internal/process/next_tick.js:74:11) at process._tickCallback
(internal/process/next_tick.js:98:9)
My code:
"use strict";
require("co-mocha");
var Application = require('spectron').Application;
var assert = require('assert');
const webdriver = require('selenium-webdriver');
const driver = new webdriver.Builder()
.usingServer('http://127.0.0.1:9515')
.withCapabilities({
chromeOptions: {
binary: "./appPath/app"
}
})
.forBrowser('electron')
.build();
describe('Application launch', function () {
this.timeout(100000);
var app;
beforeEach(function () {
app = new Application({
path: "./appPath/app"
});
return app.start();
});
afterEach(function () {
if (app && app.isRunning()) {
return app.stop();
}
});
it('click a button', function* () {
yield driver.sleep(5000);
yield driver.findElement(webdriver.By.css(".classSelector")).click();
});
});
Thanks and sorry for my English.

Answer 1

I recommend you to use Spectron. which is a less painful way of testing your electron app. in my opinion perfect combination is using it with Ava test framework, which allows the concurrently test.
async & await is also another big win. which allows you to have so clean test cases.
and also if you have a test which needs to happen serial, you can use test.serial
test.serial('login as new user', async t => {
let app = t.context.app
app = await loginNewUser(app)
await util.screenshotCreateOrCompare(app, t, 'new-user-mission-view-empty')
})
test.serial('Can Navigate to Preference Page', async t => {
let app = t.context.app
await app.client.click('[data-test="preference-button"]')
await util.screenshotCreateOrCompare(app, t, 'new-user-preference-page-empty')
})
and just for reference; my helper test cases.
test.before(async t => {
app = util.createApp()
app = await util.waitForLoad(app, t)
})
test.beforeEach(async t => {
t.context.app = app
})
test.afterEach(async t => {
console.log('test complete')
})
// CleanUp
test.after.always(async t => {
// This runs after each test and other test hooks, even if they
failed
await app.client.localStorage('DELETE', 'user')
console.log('delete all files')
const clean = await exec('rm -rf /tmp/DesktopTest')
await clean.stdout.on('data', data => {
console.log(util.format('clean', data))
})
await app.client.close()
await app.stop()
})
util function,
// Returns a promise that resolves to a Spectron Application once the app has loaded.
// Takes a Ava test. Makes some basic assertions to verify that the app loaded correctly.
function createApp (t) {
return new Application({
path: path.join(__dirname, '..', 'node_modules', '.bin',
'electron' + (process.platform === 'win32' ? '.cmd' : '')),
// args: ['-r', path.join(__dirname, 'mocks.js'), path.join(__dirname, '..')],
env: {NODE_ENV: 'test'},
waitTimeout: 10e3
})
}

Answer 2

First off, Spectron (which is a wrapper for WebdriverIO) and WebdriverJS (which is part of Selenium-Webdriver) are two different frameworks, you only need to use one of them for your tests.
If you are using WebdriverJS, then you need to run ./node_modules/.bin/chromedriver in this step: http://electron.atom.io/docs/tutorial/using-selenium-and-webdriver/#start-chromedriver

Answer 3

I could get ChromeDriver working by adding a proxy exception in my terminal.
export {no_proxy,NO_PROXY}="127.0.0.1"