Running Test in Remote machine with new WebDriver functionality (Grid 2)

Earlier days we can run Selenium test in multiple machine ONLY using Selenium 1 RC (The Project name called Selenium Grid). The biggest downside with Selenium Grid is that, it doesn’t support Webdriver. But now with Grid 2, both Selenium 1 and Webdriver are supported and we can run test in multiple machines. Grid 2 will allow you to do following

· Scale by distributing tests on several machines ( parallel execution ) · Manage multiple environments from a central point, making it easy to run the tests against a vast combination of browsers / OS. · Minimize the maintenance time for the grid by allowing you to implement custom hooks to leverage virtual infrastructure for instance.

Steps to run test in multiple machine using Grid 2 Step1 (HUB) Start the Selenium standalone server with following command

 
java -jar selenium-server-standalone-2.14.0.jar -role hub

Now the Command prompt window will look like this If you could see the above screen shot, selenium server once started, it started as a Selenium grid Server. The hub will automatically start-up using port 4444 by default. To change the default port, you can add the optional parameter -port when you run the command. You can view the status of the hub by opening a browser window and navigating to: http://localhost:4444/grid/console Step2 (Node) Now start the node from the same Selenium standalone server package itself in command prompt, since Selenium standalone server package itself includes Hub, Webdrivers and RC

java -jar selenium-server-standalone-2.14.0.jar -role node  -hub http://localhost:4444/grid/register

Now the Console looks like this   Now once you go back to your browser and check the link http://localhost:4444/grid/console it will look like this   By default Grid 2 starts 11 browsers : 5 Firefox, 5 Chrome, 1 Internet Explorer. The maximum number of concurrent tests is set to 5 by default. Running Test using RC and Webdriver For the Selenium 1 RC nodes, you can continue to use the DefaultSelenium object and pass in the hub information

Selenium selenium = new DefaultSelenium(“localhost”, 4444, “*firefox”, “http://www.google.com”);

Similarly for running test using Webdriver, use RemoteWebDriver instead of WebDriver and DesiredCapabilities object to define browser, OS version etc.

    DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setBrowserName("firefox");

Pass the code to RemoteWebdriver object also

WebDriver driver = new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"), capability);

The Complete working code will look like this.

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import java.net.URL;

class RemoteTest {

  public static void main(String[] args) throws Exception {
    // Change this to match the location of your server
    URL server = new URL("http://127.0.0.1:4444/wd/hub");

    DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setBrowserName("firefox");

    System.out.println("Connecting to " + server);

    WebDriver driver = new RemoteWebDriver(server, capabilities);

    driver.get("http://www.google.com");

    driver.quit();
  }

That’s it. Enjoy running Test in Distributed Environment !! Thanks, Karthik KK