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

User · Accepted Answer

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.

User · Answer

Desired capabilities comes in handy while doing remote or parallel execution using selenium grid  We will be parametrizing the browser details and passing in to selenium server using desired capabilities class   Another usage is  test automation using Appium as shown below     Created object of DesiredCapabilities class   DesiredCapabilities capabilities   new DesiredCapabilities        Set android deviceName desired capability  Set your device name   capabilities setCapability  deviceName    your Device Name        Set BROWSER NAME desired capability   capabilities setCapability CapabilityType BROWSER NAME   Chrome        Set android VERSION desired capability  Set your mobile device s OS version   capabilities setCapability CapabilityType VERSION   5 1        Set android platformName desired capability  It s Android in our case here   capabilities setCapability  platformName    Android

User · Answer

It is a class in org openqa selenium remote DesiredCapabilities package  It gives facility to set the properties of browser  Such as to set BrowserName  Platform  Version of Browser  Mostly DesiredCapabilities class used when do we used Selenium Grid  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

User · Answer

I know I am very late to answer this question  But would like to add for further references to the give answers  DesiredCapabilities are used like setting your config with key-value pair  Below is an example related to Appium used for Automating Mobile platforms like Android and IOS  So we generally set DesiredCapabilities for conveying our WebDriver for specific things we will be needing to run our test to narrow down the performance and to increase the accuracy     So we set our DesiredCapabilities as        Created object of DesiredCapabilities class  DesiredCapabilities capabilities   new DesiredCapabilities        Set android deviceName desired capability  Set your device name  capabilities setCapability  deviceName    your Device Name        Set BROWSER NAME desired capability  capabilities setCapability CapabilityType BROWSER NAME   Chrome        Set android VERSION desired capability  Set your mobile device s OS version  capabilities setCapability CapabilityType VERSION   5 1        Set android platformName desired capability  It s Android in our case here  capabilities setCapability  platformName    Android        Set android appPackage desired capability      You need to check for your appPackage Name for your app  you can use this app for that APK INFO     Set your application s appPackage if you are using any other app   capabilities setCapability  appPackage    com android appPackageName        Set android appActivity desired capability  You can use the same app for finding appActivity of your app capabilities setCapability  appActivity    com android calculator2 Calculator      This DesiredCapabilities are very specific to Appium on Android Platform  For more you can refer to the official site of Selenium desiredCapabilities class

User · Answer

DesiredCapabilities are options that you can use to customize and configure a browser session    You can read more about them here

User · Answer

When you run selenium WebDriver  the WebDriver opens a remote server in your computer s local host   Now  this server  called the Selenium Server  is used to interpret your code into actions to run or  quot drive quot  the instance of a real browser known as either chromebrowser  ie broser  ff browser  etc  So  the Selenium Server can interact with different browser properties and hence it has many  quot capabilities quot   Now what capabilities do you desire  Consider a scenario where you are validating if files have been downloaded properly in your app but  however  you do not have a desktop automation tool  In the case where you click the download link and a desktop pop up shows up to ask where to save and or if you want to download  Your next route to bypass that would be to suppress that pop up  How  Desired Capabilities  There are other such examples  In summary  Selenium Server can do a lot  use Desired Capabilities to tailor it to your need

[selenium-webdriver] What is the use of DesiredCapabilities in Selenium WebDriver?

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