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 example would be appreciated.

Answer 1

You should read the documentation about DesiredCapabilities. There is also a different page for the ChromeDriver. Javadoc from Capabilities:

Capabilities: Describes a series of key/value pairs that encapsulate aspects of a browser.

Basically, the DesiredCapabilities help to set properties for the WebDriver. A typical usecase would be to set the path for the FirefoxDriver if your local installation doesn't correspond to the default settings.

Answer 2

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