120 lines
3.5 KiB
Markdown
120 lines
3.5 KiB
Markdown
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# 使用Selenium和WebDriver
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引自[ChromeDriver - WebDriver for Chrome][chrome-driver]:
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> WebDriver是一款开源的支持多浏览器的自动化测试工具。它提供了操作网页、用户输入、JavaScript执行等能力。ChromeDriver是一个实现了WebDriver与Chromium联接协议的独立服务。它也是由开发了Chromium和WebDriver的团队开发的。
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为了能够使`chromedriver`和Electron一起正常工作，我们需要告诉它Electron在哪，并且让它相信Electron就是Chrome浏览器。
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## 通过WebDriverJs配置
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[WebDriverJs](https://code.google.com/p/selenium/wiki/WebDriverJs) 是一个可以配合WebDriver做测试的node模块，我们会用它来做个演示。
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### 1. 启动ChromeDriver
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首先，你要下载`chromedriver`，然后运行以下命令：
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```bash
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$ ./chromedriver
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Starting ChromeDriver (v2.10.291558) on port 9515
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Only local connections are allowed.
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```
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记住`9515`这个端口号，我们后面会用到
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### 2. 安装WebDriverJS
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```bash
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$ npm install selenium-webdriver
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```
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### 3. 联接到ChromeDriver
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在Electron下使用`selenium-webdriver`和其平时的用法并没有大的差异，只是你需要手动设置连接ChromeDriver，以及Electron的路径：
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```javascript
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const webdriver = require('selenium-webdriver');
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var driver = new webdriver.Builder()
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// "9515" 是ChromeDriver使用的端口
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.usingServer('http://localhost:9515')
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.withCapabilities({
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chromeOptions: {
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// 这里设置Electron的路径
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binary: '/Path-to-Your-App.app/Contents/MacOS/Atom',
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}
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})
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.forBrowser('electron')
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.build();
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driver.get('http://www.google.com');
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driver.findElement(webdriver.By.name('q')).sendKeys('webdriver');
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driver.findElement(webdriver.By.name('btnG')).click();
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driver.wait(function() {
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return driver.getTitle().then(function(title) {
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return title === 'webdriver - Google Search';
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});
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}, 1000);
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driver.quit();
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```
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## 通过WebdriverIO配置
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[WebdriverIO](http://webdriver.io/)也是一个配合WebDriver用来测试的node模块
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### 1. 启动ChromeDriver
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首先，下载`chromedriver`，然后运行以下命令：
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```bash
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$ chromedriver --url-base=wd/hub --port=9515
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Starting ChromeDriver (v2.10.291558) on port 9515
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Only local connections are allowed.
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```
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记住`9515`端口，后面会用到
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### 2. 安装WebdriverIO
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```bash
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$ npm install webdriverio
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```
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### 3. 连接到ChromeDriver
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```javascript
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const webdriverio = require('webdriverio');
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var options = {
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host: "localhost", // 使用localhost作为ChromeDriver服务器
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port: 9515, // "9515"是ChromeDriver使用的端口
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desiredCapabilities: {
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browserName: 'chrome',
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chromeOptions: {
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binary: '/Path-to-Your-App/electron', // Electron的路径
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args: [/* cli arguments */] // 可选参数，类似：'app=' + /path/to/your/app/
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}
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}
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};
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var client = webdriverio.remote(options);
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client
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.init()
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.url('http://google.com')
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.setValue('#q', 'webdriverio')
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.click('#btnG')
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.getTitle().then(function(title) {
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console.log('Title was: ' + title);
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})
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.end();
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```
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## 工作流程
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无需重新编译Electron，只要把app的源码放到[Electron的资源目录](https://github.com/atom/electron/blob/master/docs/tutorial/application-distribution.md)里就可直接开始测试了。
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当然，你也可以在运行Electron时传入参数指定你app的所在文件夹。这步可以免去你拷贝－粘贴你的app到Electron的资源目录。
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[chrome-driver]: https://sites.google.com/a/chromium.org/chromedriver/
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