使用 Selenium 和 WebDriver

根據 ChromeDriver - WebDriver for Chrome

WebDriver is an open source tool for automated testing of web apps across many browsers. It provides capabilities for navigating to web pages, user input, JavaScript execution, and more. ChromeDriver is a standalone server which implements WebDriver's wire protocol for Chromium. It is being developed by members of the Chromium and WebDriver teams.

為了與 Electron 一起使用 chromedriver,你需要告訴 chromedriver 去哪找 Electron 並讓他知道 Electron 是 Chrome 瀏覽器。

透過 WebDriverJs 設定

WebDriverJs 提供一個 Node 套件來透過 web driver 做測試,我們將使用它作為例子。

1. 啟動 ChromeDriver

首先你需要下載 chromedriver 執行檔,然後執行它:

$ ./chromedriver
Starting ChromeDriver (v2.10.291558) on port 9515
Only local connections are allowed.

記住埠號(port number) 9515,等等會使用到它

2. 安裝 WebDriverJS

$ npm install selenium-webdriver

3. 連接到 ChromeDriver

與 Electron 一起使用 selenium-webdriver 的方法基本上與 upstream 相同,除了你需要手動指定如何連接 chrome driver 和去哪找 Electron 的執行檔:

const webdriver = require('selenium-webdriver')

var driver = new webdriver.Builder()
  // The "9515" is the port opened by chrome driver.
  .usingServer('http://localhost:9515')
  .withCapabilities({
    chromeOptions: {
      // Here is the path to your Electron binary.
      binary: '/Path-to-Your-App.app/Contents/MacOS/Atom'
    }
  })
  .forBrowser('electron')
  .build()

driver.get('http://www.google.com')
driver.findElement(webdriver.By.name('q')).sendKeys('webdriver')
driver.findElement(webdriver.By.name('btnG')).click()
driver.wait(function () {
  return driver.getTitle().then(function (title) {
    return title === 'webdriver - Google Search'
  })
}, 1000)

driver.quit()

透過 WebdriverIO 設定

WebdriverIO 提供一個 Node 套件來透過 web driver 做測試。

1. 啟動 ChromeDriver

首先你需要下載 chromedriver 執行檔,然後執行它:

$ chromedriver --url-base=wd/hub --port=9515
Starting ChromeDriver (v2.10.291558) on port 9515
Only local connections are allowed.

記住埠號(port number) 9515,等等會用到它

2. 安裝 WebdriverIO

$ npm install webdriverio

3. 連接到 chrome driver

const webdriverio = require('webdriverio')
var options = {
  host: 'localhost', // Use localhost as chrome driver server
  port: 9515,        // "9515" is the port opened by chrome driver.
  desiredCapabilities: {
    browserName: 'chrome',
    chromeOptions: {
      binary: '/Path-to-Your-App/electron', // Path to your Electron binary.
      args: [/* cli arguments */]           // Optional, perhaps 'app=' + /path/to/your/app/
    }
  }
}

var client = webdriverio.remote(options)

client
    .init()
    .url('http://google.com')
    .setValue('#q', 'webdriverio')
    .click('#btnG')
    .getTitle().then(function (title) {
      console.log('Title was: ' + title)
    })
    .end()

運作流程

要在不重新建置 Electron 的情況下測試你的應用程式,只需要 放置 你的應用程式到 Electron 的資源目錄中即可。

或者,傳遞一個指向你應用程式資料夾的參數來透過你的 Electron 執行檔運行,這會減少複製你應用程式到 Electron 資源資料夾的需求。

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