What is WebDriver and ChromeDriver?


WebDriver is an open source tool for automated testing of webapps across many browsers. It provides capabilities for navigating to web pages, user input, JavaScript execution, and more. ChromeDriver is a standalone server that implements the W3C WebDriver standard.

What exactly is a WebDriver driver?

WebDriver is an interface and all the methods which are declared in Webdriver interface are implemented by respective driver class. But if we do upcasting,we can run the scripts in any browser . i.e running the same automation scripts in different browsers to achieve Runtime Polymorphism.

Why do we use WebDriver instead of ChromeDriver?

Show activity on this post. Then only methods defined in the ChromeDriver class will be exposed. So we are upcasting it to the highest level which is the WebDriver interface so that all methods in WebDriver interface, and overridden in RemoteWebDriver, and ChromeDriver class are available in the object instance.

Is Chrome and ChromeDriver same?

ChromeDriver uses the same version number scheme as Chrome. See https://www.chromium.org/developers/version-numbers for more details. Each version of ChromeDriver supports Chrome with matching major, minor, and build version numbers. For example, ChromeDriver 73.0.

What exactly is a WebDriver driver?

WebDriver is an interface and all the methods which are declared in Webdriver interface are implemented by respective driver class. But if we do upcasting,we can run the scripts in any browser . i.e running the same automation scripts in different browsers to achieve Runtime Polymorphism.

What is XPath in Selenium?

What is XPath in Selenium? XPath is a technique in Selenium to navigate through the HTML structure of a page. XPath enables testers to navigate through the XML structure of any document, and this can be used on both HTML and XML documents.

What is the purpose of TestNG?

TestNG makes automated tests more structured, readable, maintainable and user-friendly. It provides powerful features and reporting. Its high-end annotations like dataprovider, makes it easier to scale up, as you perform cross browser testing across multiple devices, browsers, and their versions.

How many drivers are there in Selenium?

There are four basic components of WebDriver Architecture: Selenium Language Bindings. JSON Wire Protocol. Browser Drivers.

Why is WebDriver an interface?

WebDriver is a remote control interface that enables introspection and control of user agents (browsers). The methods in this interface fall into three categories: Control of the browser itself. Selection of WebElement s.

What is browser driver Selenium?

The browser driver uses a HTTP Server for getting HTTP Requests. This HTTP Server determines the steps needed for implementation of Selenium command. The execution status which is run on browser is sent back to HTTP Server, which sends the status back to automation script.

How is polymorphism used in Selenium?

Polymorphism in Java/selenium The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object. We can create functions or reference variables that behave differently in a different programmatic context.

What is the superclass of WebDriver?

Hi Dushyant, SearchContext is the super interface of the Webdriver.

What is the base class of WebDriver?

Hey Prashant, in Selenium Base class is the main class which takes care of Browser setup, loading configuration file and other reusable methods like screenshot, handling sync issues and many more. With base class you can avoid code duplication and can reuse the code as much you want.

Where is ChromeDriver located?

To check that, open a terminal in a Linux/Mac and type env | grep PATH to check it is there.

Is Selenium WebDriver an interface?

Selenium WebDriver is an interface that defines a set of methods. However, implementation is provided by the browser specific classes. Some of the implementation classes are AndroidDriver , ChromeDriver , FirefoxDriver , InternetExplorerDriver , IPhoneDriver , SafariDriver etc.

What is the difference between WebDriver and WebElement?

Anything that is present on the web page is a WebElement such as text box, button, etc. WebElement represents an HTML element. Selenium WebDriver encapsulates a simple form element as an object of the WebElement. It basically represents a DOM element and all the HTML documents are made up by these HTML elements.

What is WebDriver class or interface?

WebDriver is a remote control interface that enables introspection and control of user agents (browsers). The methods in this interface fall into three categories: Control of the browser itself. Selection of WebElement s.

What is browser driver Selenium?

Selenium Web driver is a web automation tool which enables you to run the tests against different browsers. These browsers can be Internet Explorer, Firefox or Chrome. To use a particular browser with Selenium you need corresponding driver.

What exactly is a WebDriver driver?

WebDriver is an interface and all the methods which are declared in Webdriver interface are implemented by respective driver class. But if we do upcasting,we can run the scripts in any browser . i.e running the same automation scripts in different browsers to achieve Runtime Polymorphism.

What is css in Selenium?

What is a CSS Selector? Essentially, the CSS Selector combines an element selector and a selector value that can identify particular elements on a web page. Like XPath, CSS selector can be used to locate web elements without ID, class, or Name.

What is tag name in Selenium?

“tagName” is one of the 8 locators supported by selenium. For instance, display all the anchors “a” or “images” alternative texts on amazaon india page @ https://www.amazon.in/ selenium identifies the “a” and “image” tags with the following java statements. List links = driver. findElements(By.

What is DOM in Selenium?

Introduction. The Document Object Model (DOM) is an application programming interface (API) for HTML and XML documents. It defines the logical structure of documents and the way a document is accessed and manipulated.

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