desired capabilities in selenium-What is the use of DesiredCapabilities in Selenium WebDriver?

Question

What is the use of DesiredCapabilities in Selenium WebDriver?

When we want to use this and how?

Answer with an example would be appreciated.

Answer 1

1. It is a class in org.openqa.selenium.remote.DesiredCapabilities package.
2. It gives the facility to set the properties of the browser. Such as to set BrowserName, Platform, Version of Browser.
3. Mostly DesiredCapabilities class used when do we use Selenium Grid.
4. We have to execute multiple TestCases on multiple Systems with a different browser with Different version and Different Operating System.

Example:

WebDriver driver; 

String baseUrl , nodeUrl;

baseUrl = "https://www.facebook.com"; nodeUrl = "http://192.168.10.21:5568/wd/hub"; 

DesiredCapabilities capability = DesiredCapabilities.firefox(); capability.setBrowserName("firefox"); capability.setPlatform(Platform.WIN8_1);

driver = new RemoteWebDriver(new URL(nodeUrl),capability); 

driver.manage().window().maximize(); driver.manage().timeouts().implicitlyWait(2, TimeUnit.MINUTES);